Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Cross-merge networking fixes after downstream PR.

No conflicts and no adjacent changes.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Documentation/admin-guide/device-mapper/delay.rst

@@ -3,29 +3,52 @@ dm-delay
 ========
 
 Device-Mapper's "delay" target delays reads and/or writes
-and maps them to different devices.
+and/or flushs and optionally maps them to different devices.
 
-Parameters::
+Arguments::
 
     <device> <offset> <delay> [<write_device> <write_offset> <write_delay>
 			       [<flush_device> <flush_offset> <flush_delay>]]
 
-With separate write parameters, the first set is only used for reads.
+Table line has to either have 3, 6 or 9 arguments:
+
+3: apply offset and delay to read, write and flush operations on device
+
+6: apply offset and delay to device, also apply write_offset and write_delay
+   to write and flush operations on optionally different write_device with
+   optionally different sector offset
+
+9: same as 6 arguments plus define flush_offset and flush_delay explicitely
+   on/with optionally different flush_device/flush_offset.
+
 Offsets are specified in sectors.
+
 Delays are specified in milliseconds.
 
+
 Example scripts
 ===============
 
 ::
-
 	#!/bin/sh
-	# Create device delaying rw operation for 500ms
-	echo "0 `blockdev --getsz $1` delay $1 0 500" | dmsetup create delayed
+	#
+	# Create mapped device named "delayed" delaying read, write and flush operations for 500ms.
+	#
+	dmsetup create delayed --table  "0 `blockdev --getsz $1` delay $1 0 500"
 
 ::
-
 	#!/bin/sh
-	# Create device delaying only write operation for 500ms and
-	# splitting reads and writes to different devices $1 $2
-	echo "0 `blockdev --getsz $1` delay $1 0 0 $2 0 500" | dmsetup create delayed
+	#
+	# Create mapped device delaying write and flush operations for 400ms and
+	# splitting reads to device $1 but writes and flushs to different device $2
+	# to different offsets of 2048 and 4096 sectors respectively.
+	#
+	dmsetup create delayed --table "0 `blockdev --getsz $1` delay $1 2048 0 $2 4096 400"
+
+::
+	#!/bin/sh
+	#
+	# Create mapped device delaying reads for 50ms, writes for 100ms and flushs for 333ms
+	# onto the same backing device at offset 0 sectors.
+	#
+	dmsetup create delayed --table "0 `blockdev --getsz $1` delay $1 0 50 $2 0 100 $1 0 333"

Documentation/admin-guide/device-mapper/dm-crypt.rst

@@ -160,6 +160,10 @@ iv_large_sectors
    The <iv_offset> must be multiple of <sector_size> (in 512 bytes units)
    if this flag is specified.
 
+integrity_key_size:<bytes>
+   Use an integrity key of <bytes> size instead of using an integrity key size
+   of the digest size of the used HMAC algorithm.
+
 
 Module parameters::
    max_read_size

Documentation/admin-guide/device-mapper/vdo.rst

@@ -251,7 +251,12 @@ The messages are:
 		by the vdostats userspace program to interpret the output
 		buffer.
 
-        dump:
+	config:
+		Outputs useful vdo configuration information. Mostly used
+		by users who want to recreate a similar VDO volume and
+		want to know the creation configuration used.
+
+	dump:
 		Dumps many internal structures to the system log. This is
 		not always safe to run, so it should only be used to debug
 		a hung vdo. Optional parameters to specify structures to

Documentation/admin-guide/kernel-parameters.txt

@@ -2677,6 +2677,23 @@
 
 			Default is Y (on).
 
+	kvm.enable_virt_at_load=[KVM,ARM64,LOONGARCH,MIPS,RISCV,X86]
+			If enabled, KVM will enable virtualization in hardware
+			when KVM is loaded, and disable virtualization when KVM
+			is unloaded (if KVM is built as a module).
+
+			If disabled, KVM will dynamically enable and disable
+			virtualization on-demand when creating and destroying
+			VMs, i.e. on the 0=>1 and 1=>0 transitions of the
+			number of VMs.
+
+			Enabling virtualization at module lode avoids potential
+			latency for creation of the 0=>1 VM, as KVM serializes
+			virtualization enabling across all online CPUs.  The
+			"cost" of enabling virtualization when KVM is loaded,
+			is that doing so may interfere with using out-of-tree
+			hypervisors that want to "own" virtualization hardware.
+
 	kvm.enable_vmware_backdoor=[KVM] Support VMware backdoor PV interface.
 				   Default is false (don't support).
 

Documentation/arch/arm/mem_alignment.rst

@@ -12,7 +12,7 @@ ones.
 
 Of course this is a bad idea to rely on the alignment trap to perform
 unaligned memory access in general.  If those access are predictable, you
-are better to use the macros provided by include/asm/unaligned.h.  The
+are better to use the macros provided by include/linux/unaligned.h.  The
 alignment trap can fixup misaligned access for the exception cases, but at
 a high performance cost.  It better be rare.
 

Documentation/arch/loongarch/irq-chip-model.rst

@@ -85,6 +85,38 @@ to CPUINTC directly::
     | Devices |
     +---------+
 
+Advanced Extended IRQ model
+===========================
+
+In this model, IPI (Inter-Processor Interrupt) and CPU Local Timer interrupt go
+to CPUINTC directly, CPU UARTS interrupts go to LIOINTC, PCH-MSI interrupts go
+to AVECINTC, and then go to CPUINTC directly, while all other devices interrupts
+go to PCH-PIC/PCH-LPC and gathered by EIOINTC, and then go to CPUINTC directly::
+
+ +-----+     +-----------------------+     +-------+
+ | IPI | --> |        CPUINTC        | <-- | Timer |
+ +-----+     +-----------------------+     +-------+
+              ^          ^          ^
+              |          |          |
+       +---------+ +----------+ +---------+     +-------+
+       | EIOINTC | | AVECINTC | | LIOINTC | <-- | UARTs |
+       +---------+ +----------+ +---------+     +-------+
+            ^            ^
+            |            |
+       +---------+  +---------+
+       | PCH-PIC |  | PCH-MSI |
+       +---------+  +---------+
+         ^     ^           ^
+         |     |           |
+ +---------+ +---------+ +---------+
+ | Devices | | PCH-LPC | | Devices |
+ +---------+ +---------+ +---------+
+                  ^
+                  |
+             +---------+
+             | Devices |
+             +---------+
+
 ACPI-related definitions
 ========================
 

Documentation/arch/s390/vfio-ap.rst

@@ -999,6 +999,36 @@ the vfio_ap mediated device to which it is assigned as long as each new APQN
 resulting from plugging it in references a queue device bound to the vfio_ap
 device driver.
 
+Driver Features
+===============
+The vfio_ap driver exposes a sysfs file containing supported features.
+This exists so third party tools (like Libvirt and mdevctl) can query the
+availability of specific features.
+
+The features list can be found here: /sys/bus/matrix/devices/matrix/features
+
+Entries are space delimited. Each entry consists of a combination of
+alphanumeric and underscore characters.
+
+Example:
+cat /sys/bus/matrix/devices/matrix/features
+guest_matrix dyn ap_config
+
+the following features are advertised:
+
+---------------+---------------------------------------------------------------+
+| Flag         | Description                                                   |
++==============+===============================================================+
+| guest_matrix | guest_matrix attribute exists. It reports the matrix of       |
+|              | adapters and domains that are or will be passed through to a  |
+|              | guest when the mdev is attached to it.                        |
++--------------+---------------------------------------------------------------+
+| dyn          | Indicates hot plug/unplug of AP adapters, domains and control |
+|              | domains for a guest to which the mdev is attached.            |
++------------+-----------------------------------------------------------------+
+| ap_config    | ap_config interface for one-shot modifications to mdev config |
++--------------+---------------------------------------------------------------+
+
 Limitations
 ===========
 Live guest migration is not supported for guests using AP devices without

Documentation/core-api/cleanup.rst

@@ -0,0 +1,8 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+===========================
+Scope-based Cleanup Helpers
+===========================
+
+.. kernel-doc:: include/linux/cleanup.h
+   :doc: scope-based cleanup helpers

Documentation/core-api/folio_queue.rst

@@ -0,0 +1,212 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+===========
+Folio Queue
+===========
+
+:Author: David Howells <dhowells@redhat.com>
+
+.. Contents:
+
+ * Overview
+ * Initialisation
+ * Adding and removing folios
+ * Querying information about a folio
+ * Querying information about a folio_queue
+ * Folio queue iteration
+ * Folio marks
+ * Lockless simultaneous production/consumption issues
+
+
+Overview
+========
+
+The folio_queue struct forms a single segment in a segmented list of folios
+that can be used to form an I/O buffer.  As such, the list can be iterated over
+using the ITER_FOLIOQ iov_iter type.
+
+The publicly accessible members of the structure are::
+
+	struct folio_queue {
+		struct folio_queue *next;
+		struct folio_queue *prev;
+		...
+	};
+
+A pair of pointers are provided, ``next`` and ``prev``, that point to the
+segments on either side of the segment being accessed.  Whilst this is a
+doubly-linked list, it is intentionally not a circular list; the outward
+sibling pointers in terminal segments should be NULL.
+
+Each segment in the list also stores:
+
+ * an ordered sequence of folio pointers,
+ * the size of each folio and
+ * three 1-bit marks per folio,
+
+but hese should not be accessed directly as the underlying data structure may
+change, but rather the access functions outlined below should be used.
+
+The facility can be made accessible by::
+
+	#include <linux/folio_queue.h>
+
+and to use the iterator::
+
+	#include <linux/uio.h>
+
+
+Initialisation
+==============
+
+A segment should be initialised by calling::
+
+	void folioq_init(struct folio_queue *folioq);
+
+with a pointer to the segment to be initialised.  Note that this will not
+necessarily initialise all the folio pointers, so care must be taken to check
+the number of folios added.
+
+
+Adding and removing folios
+==========================
+
+Folios can be set in the next unused slot in a segment struct by calling one
+of::
+
+	unsigned int folioq_append(struct folio_queue *folioq,
+				   struct folio *folio);
+
+	unsigned int folioq_append_mark(struct folio_queue *folioq,
+					struct folio *folio);
+
+Both functions update the stored folio count, store the folio and note its
+size.  The second function also sets the first mark for the folio added.  Both
+functions return the number of the slot used.  [!] Note that no attempt is made
+to check that the capacity wasn't overrun and the list will not be extended
+automatically.
+
+A folio can be excised by calling::
+
+	void folioq_clear(struct folio_queue *folioq, unsigned int slot);
+
+This clears the slot in the array and also clears all the marks for that folio,
+but doesn't change the folio count - so future accesses of that slot must check
+if the slot is occupied.
+
+
+Querying information about a folio
+==================================
+
+Information about the folio in a particular slot may be queried by the
+following function::
+
+	struct folio *folioq_folio(const struct folio_queue *folioq,
+				   unsigned int slot);
+
+If a folio has not yet been set in that slot, this may yield an undefined
+pointer.  The size of the folio in a slot may be queried with either of::
+
+	unsigned int folioq_folio_order(const struct folio_queue *folioq,
+					unsigned int slot);
+
+	size_t folioq_folio_size(const struct folio_queue *folioq,
+				 unsigned int slot);
+
+The first function returns the size as an order and the second as a number of
+bytes.
+
+
+Querying information about a folio_queue
+========================================
+
+Information may be retrieved about a particular segment with the following
+functions::
+
+	unsigned int folioq_nr_slots(const struct folio_queue *folioq);
+
+	unsigned int folioq_count(struct folio_queue *folioq);
+
+	bool folioq_full(struct folio_queue *folioq);
+
+The first function returns the maximum capacity of a segment.  It must not be
+assumed that this won't vary between segments.  The second returns the number
+of folios added to a segments and the third is a shorthand to indicate if the
+segment has been filled to capacity.
+
+Not that the count and fullness are not affected by clearing folios from the
+segment.  These are more about indicating how many slots in the array have been
+initialised, and it assumed that slots won't get reused, but rather the segment
+will get discarded as the queue is consumed.
+
+
+Folio marks
+===========
+
+Folios within a queue can also have marks assigned to them.  These marks can be
+used to note information such as if a folio needs folio_put() calling upon it.
+There are three marks available to be set for each folio.
+
+The marks can be set by::
+
+	void folioq_mark(struct folio_queue *folioq, unsigned int slot);
+	void folioq_mark2(struct folio_queue *folioq, unsigned int slot);
+	void folioq_mark3(struct folio_queue *folioq, unsigned int slot);
+
+Cleared by::
+
+	void folioq_unmark(struct folio_queue *folioq, unsigned int slot);
+	void folioq_unmark2(struct folio_queue *folioq, unsigned int slot);
+	void folioq_unmark3(struct folio_queue *folioq, unsigned int slot);
+
+And the marks can be queried by::
+
+	bool folioq_is_marked(const struct folio_queue *folioq, unsigned int slot);
+	bool folioq_is_marked2(const struct folio_queue *folioq, unsigned int slot);
+	bool folioq_is_marked3(const struct folio_queue *folioq, unsigned int slot);
+
+The marks can be used for any purpose and are not interpreted by this API.
+
+
+Folio queue iteration
+=====================
+
+A list of segments may be iterated over using the I/O iterator facility using
+an ``iov_iter`` iterator of ``ITER_FOLIOQ`` type.  The iterator may be
+initialised with::
+
+	void iov_iter_folio_queue(struct iov_iter *i, unsigned int direction,
+				  const struct folio_queue *folioq,
+				  unsigned int first_slot, unsigned int offset,
+				  size_t count);
+
+This may be told to start at a particular segment, slot and offset within a
+queue.  The iov iterator functions will follow the next pointers when advancing
+and prev pointers when reverting when needed.
+
+
+Lockless simultaneous production/consumption issues
+===================================================
+
+If properly managed, the list can be extended by the producer at the head end
+and shortened by the consumer at the tail end simultaneously without the need
+to take locks.  The ITER_FOLIOQ iterator inserts appropriate barriers to aid
+with this.
+
+Care must be taken when simultaneously producing and consuming a list.  If the
+last segment is reached and the folios it refers to are entirely consumed by
+the IOV iterators, an iov_iter struct will be left pointing to the last segment
+with a slot number equal to the capacity of that segment.  The iterator will
+try to continue on from this if there's another segment available when it is
+used again, but care must be taken lest the segment got removed and freed by
+the consumer before the iterator was advanced.
+
+It is recommended that the queue always contain at least one segment, even if
+that segment has never been filled or is entirely spent.  This prevents the
+head and tail pointers from collapsing.
+
+
+API Function Reference
+======================
+
+.. kernel-doc:: include/linux/folio_queue.h

Documentation/core-api/index.rst

@@ -35,7 +35,9 @@ Library functionality that is used throughout the kernel.
 
    kobject
    kref
+   cleanup
    assoc_array
+   folio_queue
    xarray
    maple_tree
    idr

Documentation/core-api/unaligned-memory-access.rst

@@ -203,7 +203,7 @@ Avoiding unaligned accesses
 ===========================
 
 The easiest way to avoid unaligned access is to use the get_unaligned() and
-put_unaligned() macros provided by the <asm/unaligned.h> header file.
+put_unaligned() macros provided by the <linux/unaligned.h> header file.
 
 Going back to an earlier example of code that potentially causes unaligned
 access::

Documentation/devicetree/bindings/arm/cirrus/cirrus,ep9301.yaml

@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/cirrus/cirrus,ep9301.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic EP93xx platforms
+
+description:
+  The EP93xx SoC is a ARMv4T-based with 200 MHz ARM9 CPU.
+
+maintainers:
+  - Alexander Sverdlin <alexander.sverdlin@gmail.com>
+  - Nikita Shubin <nikita.shubin@maquefel.me>
+
+properties:
+  $nodename:
+    const: '/'
+  compatible:
+    oneOf:
+      - description: The TS-7250 is a compact, full-featured Single Board
+          Computer (SBC) based upon the Cirrus EP9302 ARM9 CPU
+        items:
+          - const: technologic,ts7250
+          - const: cirrus,ep9301
+
+      - description: The Liebherr BK3 is a derivate from ts7250 board
+        items:
+          - const: liebherr,bk3
+          - const: cirrus,ep9301
+
+      - description: EDB302 is an evaluation board by Cirrus Logic,
+          based on a Cirrus Logic EP9302 CPU
+        items:
+          - const: cirrus,edb9302
+          - const: cirrus,ep9301
+
+additionalProperties: true

Documentation/devicetree/bindings/ata/cirrus,ep9312-pata.yaml

@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/cirrus,ep9312-pata.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic EP9312 PATA controller
+
+maintainers:
+  - Damien Le Moal <dlemoal@kernel.org>
+
+properties:
+  compatible:
+    oneOf:
+      - const: cirrus,ep9312-pata
+      - items:
+          - const: cirrus,ep9315-pata
+          - const: cirrus,ep9312-pata
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    ide@800a0000 {
+        compatible = "cirrus,ep9312-pata";
+        reg = <0x800a0000 0x38>;
+        interrupt-parent = <&vic1>;
+        interrupts = <8>;
+        pinctrl-names = "default";
+        pinctrl-0 = <&ide_default_pins>;
+    };

Documentation/devicetree/bindings/dma/cirrus,ep9301-dma-m2m.yaml

@@ -0,0 +1,84 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/cirrus,ep9301-dma-m2m.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic ep93xx SoC DMA controller
+
+maintainers:
+  - Alexander Sverdlin <alexander.sverdlin@gmail.com>
+  - Nikita Shubin <nikita.shubin@maquefel.me>
+
+allOf:
+  - $ref: dma-controller.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - const: cirrus,ep9301-dma-m2m
+      - items:
+          - enum:
+              - cirrus,ep9302-dma-m2m
+              - cirrus,ep9307-dma-m2m
+              - cirrus,ep9312-dma-m2m
+              - cirrus,ep9315-dma-m2m
+          - const: cirrus,ep9301-dma-m2m
+
+  reg:
+    items:
+      - description: m2m0 channel registers
+      - description: m2m1 channel registers
+
+  clocks:
+    items:
+      - description: m2m0 channel gate clock
+      - description: m2m1 channel gate clock
+
+  clock-names:
+    items:
+      - const: m2m0
+      - const: m2m1
+
+  interrupts:
+    items:
+      - description: m2m0 channel interrupt
+      - description: m2m1 channel interrupt
+
+  '#dma-cells':
+    const: 2
+    description: |
+      The first cell is the unique device channel number as indicated by this
+      table for ep93xx:
+
+      10: SPI controller
+      11: IDE controller
+
+      The second cell is the DMA direction line number:
+
+      1: Memory to device
+      2: Device to memory
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/cirrus,ep9301-syscon.h>
+    dma-controller@80000100 {
+        compatible = "cirrus,ep9301-dma-m2m";
+        reg = <0x80000100 0x0040>,
+              <0x80000140 0x0040>;
+        clocks = <&syscon EP93XX_CLK_M2M0>,
+                 <&syscon EP93XX_CLK_M2M1>;
+        clock-names = "m2m0", "m2m1";
+        interrupt-parent = <&vic0>;
+        interrupts = <17>, <18>;
+        #dma-cells = <2>;
+    };

Documentation/devicetree/bindings/dma/cirrus,ep9301-dma-m2p.yaml

@@ -0,0 +1,144 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/cirrus,ep9301-dma-m2p.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic ep93xx SoC M2P DMA controller
+
+maintainers:
+  - Alexander Sverdlin <alexander.sverdlin@gmail.com>
+  - Nikita Shubin <nikita.shubin@maquefel.me>
+
+allOf:
+  - $ref: dma-controller.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - const: cirrus,ep9301-dma-m2p
+      - items:
+          - enum:
+              - cirrus,ep9302-dma-m2p
+              - cirrus,ep9307-dma-m2p
+              - cirrus,ep9312-dma-m2p
+              - cirrus,ep9315-dma-m2p
+          - const: cirrus,ep9301-dma-m2p
+
+  reg:
+    items:
+      - description: m2p0 channel registers
+      - description: m2p1 channel registers
+      - description: m2p2 channel registers
+      - description: m2p3 channel registers
+      - description: m2p4 channel registers
+      - description: m2p5 channel registers
+      - description: m2p6 channel registers
+      - description: m2p7 channel registers
+      - description: m2p8 channel registers
+      - description: m2p9 channel registers
+
+  clocks:
+    items:
+      - description: m2p0 channel gate clock
+      - description: m2p1 channel gate clock
+      - description: m2p2 channel gate clock
+      - description: m2p3 channel gate clock
+      - description: m2p4 channel gate clock
+      - description: m2p5 channel gate clock
+      - description: m2p6 channel gate clock
+      - description: m2p7 channel gate clock
+      - description: m2p8 channel gate clock
+      - description: m2p9 channel gate clock
+
+  clock-names:
+    items:
+      - const: m2p0
+      - const: m2p1
+      - const: m2p2
+      - const: m2p3
+      - const: m2p4
+      - const: m2p5
+      - const: m2p6
+      - const: m2p7
+      - const: m2p8
+      - const: m2p9
+
+  interrupts:
+    items:
+      - description: m2p0 channel interrupt
+      - description: m2p1 channel interrupt
+      - description: m2p2 channel interrupt
+      - description: m2p3 channel interrupt
+      - description: m2p4 channel interrupt
+      - description: m2p5 channel interrupt
+      - description: m2p6 channel interrupt
+      - description: m2p7 channel interrupt
+      - description: m2p8 channel interrupt
+      - description: m2p9 channel interrupt
+
+  '#dma-cells':
+    const: 2
+    description: |
+      The first cell is the unique device channel number as indicated by this
+      table for ep93xx:
+
+      0: I2S channel 1
+      1: I2S channel 2 (unused)
+      2: AC97 channel 1 (unused)
+      3: AC97 channel 2 (unused)
+      4: AC97 channel 3 (unused)
+      5: I2S channel 3 (unused)
+      6: UART1 (unused)
+      7: UART2 (unused)
+      8: UART3 (unused)
+      9: IRDA (unused)
+
+      The second cell is the DMA direction line number:
+
+      1: Memory to device
+      2: Device to memory
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/cirrus,ep9301-syscon.h>
+    dma-controller@80000000 {
+        compatible = "cirrus,ep9301-dma-m2p";
+        reg = <0x80000000 0x0040>,
+              <0x80000040 0x0040>,
+              <0x80000080 0x0040>,
+              <0x800000c0 0x0040>,
+              <0x80000240 0x0040>,
+              <0x80000200 0x0040>,
+              <0x800002c0 0x0040>,
+              <0x80000280 0x0040>,
+              <0x80000340 0x0040>,
+              <0x80000300 0x0040>;
+        clocks = <&syscon EP93XX_CLK_M2P0>,
+                 <&syscon EP93XX_CLK_M2P1>,
+                 <&syscon EP93XX_CLK_M2P2>,
+                 <&syscon EP93XX_CLK_M2P3>,
+                 <&syscon EP93XX_CLK_M2P4>,
+                 <&syscon EP93XX_CLK_M2P5>,
+                 <&syscon EP93XX_CLK_M2P6>,
+                 <&syscon EP93XX_CLK_M2P7>,
+                 <&syscon EP93XX_CLK_M2P8>,
+                 <&syscon EP93XX_CLK_M2P9>;
+        clock-names = "m2p0", "m2p1",
+                      "m2p2", "m2p3",
+                      "m2p4", "m2p5",
+                      "m2p6", "m2p7",
+                      "m2p8", "m2p9";
+        interrupt-parent = <&vic0>;
+        interrupts = <7>, <8>, <9>, <10>, <11>, <12>, <13>, <14>, <15>, <16>;
+        #dma-cells = <2>;
+    };

Documentation/devicetree/bindings/gpio/gpio-ep9301.yaml

@@ -73,9 +73,10 @@ examples:
       reg-names = "data", "dir", "intr";
       gpio-controller;
       #gpio-cells = <2>;
-        interrupt-controller;
-        interrupt-parent = <&vic1>;
-        interrupts = <27>;
+      interrupt-controller;
+      #interrupt-cells = <2>;
+      interrupt-parent = <&vic1>;
+      interrupts = <27>;
     };
 
     gpio@80840004 {
@@ -87,6 +88,7 @@ examples:
       gpio-controller;
       #gpio-cells = <2>;
       interrupt-controller;
+      #interrupt-cells = <2>;
       interrupt-parent = <&vic1>;
       interrupts = <27>;
     };
@@ -127,6 +129,7 @@ examples:
       gpio-controller;
       #gpio-cells = <2>;
       interrupt-controller;
+      #interrupt-cells = <2>;
       interrupts-extended = <&vic0 19>, <&vic0 20>,
                             <&vic0 21>, <&vic0 22>,
                             <&vic1 15>, <&vic1 16>,

Documentation/devicetree/bindings/input/cirrus,ep9307-keypad.yaml

@@ -0,0 +1,87 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/cirrus,ep9307-keypad.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus ep93xx keypad
+
+maintainers:
+  - Alexander Sverdlin <alexander.sverdlin@gmail.com>
+
+allOf:
+  - $ref: /schemas/input/matrix-keymap.yaml#
+
+description:
+  The KPP is designed to interface with a keypad matrix with 2-point contact
+  or 3-point contact keys. The KPP is designed to simplify the software task
+  of scanning a keypad matrix. The KPP is capable of detecting, debouncing,
+  and decoding one or multiple keys pressed simultaneously on a keypad.
+
+properties:
+  compatible:
+    oneOf:
+      - const: cirrus,ep9307-keypad
+      - items:
+          - enum:
+              - cirrus,ep9312-keypad
+              - cirrus,ep9315-keypad
+          - const: cirrus,ep9307-keypad
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  debounce-delay-ms:
+    description: |
+          Time in microseconds that key must be pressed or
+          released for state change interrupt to trigger.
+
+  cirrus,prescale:
+    description: row/column counter pre-scaler load value
+    $ref: /schemas/types.yaml#/definitions/uint16
+    maximum: 1023
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - linux,keymap
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/input/input.h>
+    #include <dt-bindings/clock/cirrus,ep9301-syscon.h>
+    keypad@800f0000 {
+        compatible = "cirrus,ep9307-keypad";
+        reg = <0x800f0000 0x0c>;
+        interrupt-parent = <&vic0>;
+        interrupts = <29>;
+        clocks = <&eclk EP93XX_CLK_KEYPAD>;
+        pinctrl-names = "default";
+        pinctrl-0 = <&keypad_default_pins>;
+        linux,keymap = <KEY_UP>,
+                       <KEY_DOWN>,
+                       <KEY_VOLUMEDOWN>,
+                       <KEY_HOME>,
+                       <KEY_RIGHT>,
+                       <KEY_LEFT>,
+                       <KEY_ENTER>,
+                       <KEY_VOLUMEUP>,
+                       <KEY_F6>,
+                       <KEY_F8>,
+                       <KEY_F9>,
+                       <KEY_F10>,
+                       <KEY_F1>,
+                       <KEY_F2>,
+                       <KEY_F3>,
+                       <KEY_POWER>;
+    };

Documentation/devicetree/bindings/mailbox/mtk,adsp-mbox.yaml

@@ -17,9 +17,15 @@ description: |
 
 properties:
   compatible:
-    enum:
-      - mediatek,mt8195-adsp-mbox
-      - mediatek,mt8186-adsp-mbox
+    oneOf:
+      - enum:
+          - mediatek,mt8186-adsp-mbox
+          - mediatek,mt8195-adsp-mbox
+      - items:
+          - enum:
+              - mediatek,mt8188-adsp-mbox
+          - const: mediatek,mt8186-adsp-mbox
+
 
   "#mbox-cells":
     const: 0

Documentation/devicetree/bindings/mailbox/qcom-ipcc.yaml

@@ -24,7 +24,9 @@ properties:
   compatible:
     items:
       - enum:
+          - qcom,qcs8300-ipcc
           - qcom,qdu1000-ipcc
+          - qcom,sa8255p-ipcc
           - qcom,sa8775p-ipcc
           - qcom,sc7280-ipcc
           - qcom,sc8280xp-ipcc

Documentation/devicetree/bindings/mtd/technologic,nand.yaml

@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/technologic,nand.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Technologic Systems NAND controller
+
+maintainers:
+  - Nikita Shubin <nikita.shubin@maquefel.me>
+
+allOf:
+  - $ref: nand-controller.yaml
+
+properties:
+  compatible:
+    oneOf:
+      - const: technologic,ts7200-nand
+      - items:
+          - enum:
+              - technologic,ts7300-nand
+              - technologic,ts7260-nand
+              - technologic,ts7250-nand
+          - const: technologic,ts7200-nand
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    nand-controller@60000000 {
+        compatible = "technologic,ts7200-nand";
+        reg = <0x60000000 0x8000000>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+        nand@0 {
+           reg = <0>;
+        };
+    };

Documentation/devicetree/bindings/net/cirrus,ep9301-eth.yaml

@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/cirrus,ep9301-eth.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: EP93xx SoC Ethernet Controller
+
+maintainers:
+  - Alexander Sverdlin <alexander.sverdlin@gmail.com>
+  - Nikita Shubin <nikita.shubin@maquefel.me>
+
+allOf:
+  - $ref: ethernet-controller.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - const: cirrus,ep9301-eth
+      - items:
+          - enum:
+              - cirrus,ep9302-eth
+              - cirrus,ep9307-eth
+              - cirrus,ep9312-eth
+              - cirrus,ep9315-eth
+          - const: cirrus,ep9301-eth
+
+  reg:
+    items:
+      - description: The physical base address and size of IO range
+
+  interrupts:
+    items:
+      - description: Combined signal for various interrupt events
+
+  phy-handle: true
+
+  mdio:
+    $ref: mdio.yaml#
+    unevaluatedProperties: false
+    description: optional node for embedded MDIO controller
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - phy-handle
+
+additionalProperties: false
+
+examples:
+  - |
+    ethernet@80010000 {
+        compatible = "cirrus,ep9301-eth";
+        reg = <0x80010000 0x10000>;
+        interrupt-parent = <&vic1>;
+        interrupts = <7>;
+        phy-handle = <&phy0>;
+    };

Documentation/devicetree/bindings/net/xlnx,axi-ethernet.yaml

@@ -34,6 +34,7 @@ properties:
       and length of the AXI DMA controller IO space, unless
       axistream-connected is specified, in which case the reg
       attribute of the node referenced by it is used.
+    minItems: 1
     maxItems: 2
 
   interrupts:
@@ -181,7 +182,7 @@ examples:
         clock-names = "s_axi_lite_clk", "axis_clk", "ref_clk", "mgt_clk";
         clocks = <&axi_clk>, <&axi_clk>, <&pl_enet_ref_clk>, <&mgt_clk>;
         phy-mode = "mii";
-        reg = <0x00 0x40000000 0x00 0x40000>;
+        reg = <0x40000000 0x40000>;
         xlnx,rxcsum = <0x2>;
         xlnx,rxmem = <0x800>;
         xlnx,txcsum = <0x2>;

Documentation/devicetree/bindings/pwm/cirrus,ep9301-pwm.yaml

@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/cirrus,ep9301-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic ep93xx PWM controller
+
+maintainers:
+  - Alexander Sverdlin <alexander.sverdlin@gmail.com>
+  - Nikita Shubin <nikita.shubin@maquefel.me>
+
+allOf:
+  - $ref: pwm.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - const: cirrus,ep9301-pwm
+      - items:
+          - enum:
+              - cirrus,ep9302-pwm
+              - cirrus,ep9307-pwm
+              - cirrus,ep9312-pwm
+              - cirrus,ep9315-pwm
+          - const: cirrus,ep9301-pwm
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: SoC PWM clock
+
+  "#pwm-cells":
+    const: 3
+
+required:
+  - compatible
+  - reg
+  - clocks
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/cirrus,ep9301-syscon.h>
+    pwm@80910000 {
+        compatible = "cirrus,ep9301-pwm";
+        reg = <0x80910000 0x10>;
+        clocks = <&syscon EP93XX_CLK_PWM>;
+        #pwm-cells = <3>;
+    };

Documentation/devicetree/bindings/soc/cirrus/cirrus,ep9301-syscon.yaml

@@ -0,0 +1,94 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/cirrus/cirrus,ep9301-syscon.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic EP93xx Platforms System Controller
+
+maintainers:
+  - Alexander Sverdlin <alexander.sverdlin@gmail.com>
+  - Nikita Shubin <nikita.shubin@maquefel.me>
+
+description: |
+  Central resources are controlled by a set of software-locked registers,
+  which can be used to prevent accidental accesses. Syscon generates
+  the various bus and peripheral clocks and controls the system startup
+  configuration.
+
+  The System Controller (Syscon) provides:
+  - Clock control
+  - Power management
+  - System configuration management
+
+  Syscon registers are common for all EP93xx SoC's, through some actual peripheral
+  may be missing depending on actual SoC model.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - cirrus,ep9302-syscon
+              - cirrus,ep9307-syscon
+              - cirrus,ep9312-syscon
+              - cirrus,ep9315-syscon
+          - const: cirrus,ep9301-syscon
+          - const: syscon
+      - items:
+          - const: cirrus,ep9301-syscon
+          - const: syscon
+
+  reg:
+    maxItems: 1
+
+  "#clock-cells":
+    const: 1
+
+  clocks:
+    items:
+      - description: reference clock
+
+patternProperties:
+  '^pins-':
+    type: object
+    description: pin node
+    $ref: /schemas/pinctrl/pinmux-node.yaml
+
+    properties:
+      function:
+        enum: [ spi, ac97, i2s, pwm, keypad, pata, lcd, gpio ]
+
+      groups:
+        enum: [ ssp, ac97, i2s_on_ssp, i2s_on_ac97, pwm1, gpio1agrp,
+                gpio2agrp, gpio3agrp, gpio4agrp, gpio6agrp, gpio7agrp,
+                rasteronsdram0grp, rasteronsdram3grp, keypadgrp, idegrp ]
+
+    required:
+      - function
+      - groups
+
+    unevaluatedProperties: false
+
+required:
+  - compatible
+  - reg
+  - "#clock-cells"
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    syscon@80930000 {
+      compatible = "cirrus,ep9301-syscon", "syscon";
+      reg = <0x80930000 0x1000>;
+
+      #clock-cells = <1>;
+      clocks = <&xtali>;
+
+      spi_default_pins: pins-spi {
+        function = "spi";
+        groups = "ssp";
+      };
+    };

Documentation/devicetree/bindings/sound/cirrus,ep9301-i2s.yaml

@@ -40,6 +40,20 @@ properties:
       - const: sclk
       - const: lrclk
 
+  dmas:
+    items:
+      - description: out DMA channel
+      - description: in DMA channel
+
+  dma-names:
+    items:
+      - const: tx
+      - const: rx
+
+  port:
+    $ref: audio-graph-port.yaml#
+    unevaluatedProperties: false
+
 required:
   - compatible
   - '#sound-dai-cells'
@@ -61,6 +75,8 @@ examples:
                  <&syscon 30>,
                  <&syscon 31>;
         clock-names = "mclk", "sclk", "lrclk";
+        dmas = <&dma0 0 1>, <&dma0 0 2>;
+        dma-names = "tx", "rx";
     };
 
 ...

Documentation/devicetree/bindings/spi/cirrus,ep9301-spi.yaml

@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/cirrus,ep9301-spi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: EP93xx SoC SPI controller
+
+maintainers:
+  - Alexander Sverdlin <alexander.sverdlin@gmail.com>
+  - Nikita Shubin <nikita.shubin@maquefel.me>
+
+allOf:
+  - $ref: spi-controller.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - const: cirrus,ep9301-spi
+      - items:
+          - enum:
+              - cirrus,ep9302-spi
+              - cirrus,ep9307-spi
+              - cirrus,ep9312-spi
+              - cirrus,ep9315-spi
+          - const: cirrus,ep9301-spi
+
+  reg:
+    items:
+      - description: SPI registers region
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: SPI Controller reference clock source
+
+  dmas:
+    items:
+      - description: rx DMA channel
+      - description: tx DMA channel
+
+  dma-names:
+    items:
+      - const: rx
+      - const: tx
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/clock/cirrus,ep9301-syscon.h>
+    spi@808a0000 {
+        compatible = "cirrus,ep9301-spi";
+        reg = <0x808a0000 0x18>;
+        interrupt-parent = <&vic1>;
+        interrupts = <21>;
+        clocks = <&syscon EP93XX_CLK_SPI>;
+        dmas = <&dma1 10 2>, <&dma1 10 1>;
+        dma-names = "rx", "tx";
+        cs-gpios = <&gpio5 2 GPIO_ACTIVE_HIGH>;
+    };

Documentation/driver-api/cxl/access-coordinates.rst

@@ -0,0 +1,91 @@
+.. SPDX-License-Identifier: GPL-2.0
+.. include:: <isonum.txt>
+
+==================================
+CXL Access Coordinates Computation
+==================================
+
+Shared Upstream Link Calculation
+================================
+For certain CXL region construction with endpoints behind CXL switches (SW) or
+Root Ports (RP), there is the possibility of the total bandwidth for all
+the endpoints behind a switch being more than the switch upstream link.
+A similar situation can occur within the host, upstream of the root ports.
+The CXL driver performs an additional pass after all the targets have
+arrived for a region in order to recalculate the bandwidths with possible
+upstream link being a limiting factor in mind.
+
+The algorithm assumes the configuration is a symmetric topology as that
+maximizes performance. When asymmetric topology is detected, the calculation
+is aborted. An asymmetric topology is detected during topology walk where the
+number of RPs detected as a grandparent is not equal to the number of devices
+iterated in the same iteration loop. The assumption is made that subtle
+asymmetry in properties does not happen and all paths to EPs are equal.
+
+There can be multiple switches under an RP. There can be multiple RPs under
+a CXL Host Bridge (HB). There can be multiple HBs under a CXL Fixed Memory
+Window Structure (CFMWS).
+
+An example hierarchy:
+
+>                CFMWS 0
+>                  |
+>         _________|_________
+>        |                   |
+>    ACPI0017-0          ACPI0017-1
+> GP0/HB0/ACPI0016-0   GP1/HB1/ACPI0016-1
+>    |          |        |           |
+>   RP0        RP1      RP2         RP3
+>    |          |        |           |
+>  SW 0       SW 1     SW 2        SW 3
+>  |   |      |   |    |   |       |   |
+> EP0 EP1    EP2 EP3  EP4  EP5    EP6 EP7
+
+Computation for the example hierarchy:
+
+Min (GP0 to CPU BW,
+     Min(SW 0 Upstream Link to RP0 BW,
+         Min(SW0SSLBIS for SW0DSP0 (EP0), EP0 DSLBIS, EP0 Upstream Link) +
+         Min(SW0SSLBIS for SW0DSP1 (EP1), EP1 DSLBIS, EP1 Upstream link)) +
+     Min(SW 1 Upstream Link to RP1 BW,
+         Min(SW1SSLBIS for SW1DSP0 (EP2), EP2 DSLBIS, EP2 Upstream Link) +
+         Min(SW1SSLBIS for SW1DSP1 (EP3), EP3 DSLBIS, EP3 Upstream link))) +
+Min (GP1 to CPU BW,
+     Min(SW 2 Upstream Link to RP2 BW,
+         Min(SW2SSLBIS for SW2DSP0 (EP4), EP4 DSLBIS, EP4 Upstream Link) +
+         Min(SW2SSLBIS for SW2DSP1 (EP5), EP5 DSLBIS, EP5 Upstream link)) +
+     Min(SW 3 Upstream Link to RP3 BW,
+         Min(SW3SSLBIS for SW3DSP0 (EP6), EP6 DSLBIS, EP6 Upstream Link) +
+         Min(SW3SSLBIS for SW3DSP1 (EP7), EP7 DSLBIS, EP7 Upstream link))))
+
+The calculation starts at cxl_region_shared_upstream_perf_update(). A xarray
+is created to collect all the endpoint bandwidths via the
+cxl_endpoint_gather_bandwidth() function. The min() of bandwidth from the
+endpoint CDAT and the upstream link bandwidth is calculated. If the endpoint
+has a CXL switch as a parent, then min() of calculated bandwidth and the
+bandwidth from the SSLBIS for the switch downstream port that is associated
+with the endpoint is calculated. The final bandwidth is stored in a
+'struct cxl_perf_ctx' in the xarray indexed by a device pointer. If the
+endpoint is direct attached to a root port (RP), the device pointer would be an
+RP device. If the endpoint is behind a switch, the device pointer would be the
+upstream device of the parent switch.
+
+At the next stage, the code walks through one or more switches if they exist
+in the topology. For endpoints directly attached to RPs, this step is skipped.
+If there is another switch upstream, the code takes the min() of the current
+gathered bandwidth and the upstream link bandwidth. If there's a switch
+upstream, then the SSLBIS of the upstream switch.
+
+Once the topology walk reaches the RP, whether it's direct attached endpoints
+or walking through the switch(es), cxl_rp_gather_bandwidth() is called. At
+this point all the bandwidths are aggregated per each host bridge, which is
+also the index for the resulting xarray.
+
+The next step is to take the min() of the per host bridge bandwidth and the
+bandwidth from the Generic Port (GP). The bandwidths for the GP is retrieved
+via ACPI tables SRAT/HMAT. The min bandwidth are aggregated under the same
+ACPI0017 device to form a new xarray.
+
+Finally, the cxl_region_update_bandwidth() is called and the aggregated
+bandwidth from all the members of the last xarray is updated for the
+access coordinates residing in the cxl region (cxlr) context.

Documentation/driver-api/cxl/index.rst

@@ -8,6 +8,7 @@ Compute Express Link
    :maxdepth: 1
 
    memory-devices
+   access-coordinates
 
    maturity-map
 

Documentation/networking/napi.rst

@@ -144,9 +144,8 @@ IRQ should only be unmasked after a successful call to napi_complete_done():
 
 napi_schedule_irqoff() is a variant of napi_schedule() which takes advantage
 of guarantees given by being invoked in IRQ context (no need to
-mask interrupts). Note that PREEMPT_RT forces all interrupts
-to be threaded so the interrupt may need to be marked ``IRQF_NO_THREAD``
-to avoid issues on real-time kernel configurations.
+mask interrupts). napi_schedule_irqoff() will fall back to napi_schedule() if
+IRQs are threaded (such as if ``PREEMPT_RT`` is enabled).
 
 Instance to queue mapping
 -------------------------

Documentation/translations/zh_CN/arch/loongarch/irq-chip-model.rst

@@ -87,6 +87,38 @@ PCH-LPC/PCH-MSI，然后被EIOINTC统一收集，再直接到达CPUINTC::
     | Devices |
     +---------+
 
+高级扩展IRQ模型
+===============
+
+在这种模型里面，IPI（Inter-Processor Interrupt）和CPU本地时钟中断直接发送到CPUINTC，
+CPU串口（UARTs）中断发送到LIOINTC，PCH-MSI中断发送到AVECINTC，而后通过AVECINTC直接
+送达CPUINTC，而其他所有设备的中断则分别发送到所连接的PCH-PIC/PCH-LPC，然后由EIOINTC
+统一收集，再直接到达CPUINTC::
+
+ +-----+     +-----------------------+     +-------+
+ | IPI | --> |        CPUINTC        | <-- | Timer |
+ +-----+     +-----------------------+     +-------+
+              ^          ^          ^
+              |          |          |
+       +---------+ +----------+ +---------+     +-------+
+       | EIOINTC | | AVECINTC | | LIOINTC | <-- | UARTs |
+       +---------+ +----------+ +---------+     +-------+
+            ^            ^
+            |            |
+       +---------+  +---------+
+       | PCH-PIC |  | PCH-MSI |
+       +---------+  +---------+
+         ^     ^           ^
+         |     |           |
+ +---------+ +---------+ +---------+
+ | Devices | | PCH-LPC | | Devices |
+ +---------+ +---------+ +---------+
+                  ^
+                  |
+             +---------+
+             | Devices |
+             +---------+
+
 ACPI相关的定义
 ==============
 

Documentation/translations/zh_CN/core-api/unaligned-memory-access.rst

@@ -175,7 +175,7 @@ field2会导致非对齐访问，这并不是不合理的。你会期望field2
 避免非对齐访问
 ==============
 
-避免非对齐访问的最简单方法是使用<asm/unaligned.h>头文件提供的get_unaligned()和
+避免非对齐访问的最简单方法是使用<linux/unaligned.h>头文件提供的get_unaligned()和
 put_unaligned()宏。
 
 回到前面的一个可能导致非对齐访问的代码例子::

Documentation/virt/kvm/api.rst

@@ -4214,7 +4214,9 @@ whether or not KVM_CAP_X86_USER_SPACE_MSR's KVM_MSR_EXIT_REASON_FILTER is
 enabled.  If KVM_MSR_EXIT_REASON_FILTER is enabled, KVM will exit to userspace
 on denied accesses, i.e. userspace effectively intercepts the MSR access.  If
 KVM_MSR_EXIT_REASON_FILTER is not enabled, KVM will inject a #GP into the guest
-on denied accesses.
+on denied accesses.  Note, if an MSR access is denied during emulation of MSR
+load/stores during VMX transitions, KVM ignores KVM_MSR_EXIT_REASON_FILTER.
+See the below warning for full details.
 
 If an MSR access is allowed by userspace, KVM will emulate and/or virtualize
 the access in accordance with the vCPU model.  Note, KVM may still ultimately
@@ -4229,9 +4231,22 @@ filtering. In that mode, ``KVM_MSR_FILTER_DEFAULT_DENY`` is invalid and causes
 an error.
 
 .. warning::
-   MSR accesses as part of nested VM-Enter/VM-Exit are not filtered.
-   This includes both writes to individual VMCS fields and reads/writes
-   through the MSR lists pointed to by the VMCS.
+   MSR accesses that are side effects of instruction execution (emulated or
+   native) are not filtered as hardware does not honor MSR bitmaps outside of
+   RDMSR and WRMSR, and KVM mimics that behavior when emulating instructions
+   to avoid pointless divergence from hardware.  E.g. RDPID reads MSR_TSC_AUX,
+   SYSENTER reads the SYSENTER MSRs, etc.
+
+   MSRs that are loaded/stored via dedicated VMCS fields are not filtered as
+   part of VM-Enter/VM-Exit emulation.
+
+   MSRs that are loaded/store via VMX's load/store lists _are_ filtered as part
+   of VM-Enter/VM-Exit emulation.  If an MSR access is denied on VM-Enter, KVM
+   synthesizes a consistency check VM-Exit(EXIT_REASON_MSR_LOAD_FAIL).  If an
+   MSR access is denied on VM-Exit, KVM synthesizes a VM-Abort.  In short, KVM
+   extends Intel's architectural list of MSRs that cannot be loaded/saved via
+   the VM-Enter/VM-Exit MSR list.  It is platform owner's responsibility to
+   to communicate any such restrictions to their end users.
 
    x2APIC MSR accesses cannot be filtered (KVM silently ignores filters that
    cover any x2APIC MSRs).
@@ -8082,6 +8097,14 @@ KVM_X86_QUIRK_MWAIT_NEVER_UD_FAULTS By default, KVM emulates MONITOR/MWAIT (if
                                     guest CPUID on writes to MISC_ENABLE if
                                     KVM_X86_QUIRK_MISC_ENABLE_NO_MWAIT is
                                     disabled.
+
+KVM_X86_QUIRK_SLOT_ZAP_ALL          By default, KVM invalidates all SPTEs in
+                                    fast way for memslot deletion when VM type
+                                    is KVM_X86_DEFAULT_VM.
+                                    When this quirk is disabled or when VM type
+                                    is other than KVM_X86_DEFAULT_VM, KVM zaps
+                                    only leaf SPTEs that are within the range of
+                                    the memslot being deleted.
 =================================== ============================================
 
 7.32 KVM_CAP_MAX_VCPU_ID

Documentation/virt/kvm/locking.rst

@@ -11,6 +11,8 @@ The acquisition orders for mutexes are as follows:
 
 - cpus_read_lock() is taken outside kvm_lock
 
+- kvm_usage_lock is taken outside cpus_read_lock()
+
 - kvm->lock is taken outside vcpu->mutex
 
 - kvm->lock is taken outside kvm->slots_lock and kvm->irq_lock
@@ -24,6 +26,13 @@ The acquisition orders for mutexes are as follows:
   are taken on the waiting side when modifying memslots, so MMU notifiers
   must not take either kvm->slots_lock or kvm->slots_arch_lock.
 
+cpus_read_lock() vs kvm_lock:
+
+- Taking cpus_read_lock() outside of kvm_lock is problematic, despite that
+  being the official ordering, as it is quite easy to unknowingly trigger
+  cpus_read_lock() while holding kvm_lock.  Use caution when walking vm_list,
+  e.g. avoid complex operations when possible.
+
 For SRCU:
 
 - ``synchronize_srcu(&kvm->srcu)`` is called inside critical sections
@@ -227,10 +236,16 @@ time it will be set using the Dirty tracking mechanism described above.
 :Type:		mutex
 :Arch:		any
 :Protects:	- vm_list
-		- kvm_usage_count
+
+``kvm_usage_lock``
+^^^^^^^^^^^^^^^^^^
+
+:Type:		mutex
+:Arch:		any
+:Protects:	- kvm_usage_count
 		- hardware virtualization enable/disable
-:Comment:	KVM also disables CPU hotplug via cpus_read_lock() during
-		enable/disable.
+:Comment:	Exists to allow taking cpus_read_lock() while kvm_usage_count is
+		protected, which simplifies the virtualization enabling logic.
 
 ``kvm->mn_invalidate_lock``
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -290,11 +305,12 @@ time it will be set using the Dirty tracking mechanism described above.
 		wakeup.
 
 ``vendor_module_lock``
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+^^^^^^^^^^^^^^^^^^^^^^
 :Type:		mutex
 :Arch:		x86
 :Protects:	loading a vendor module (kvm_amd or kvm_intel)
-:Comment:	Exists because using kvm_lock leads to deadlock.  cpu_hotplug_lock is
-    taken outside of kvm_lock, e.g. in KVM's CPU online/offline callbacks, and
-    many operations need to take cpu_hotplug_lock when loading a vendor module,
-    e.g. updating static calls.
+:Comment:	Exists because using kvm_lock leads to deadlock.  kvm_lock is taken
+    in notifiers, e.g. __kvmclock_cpufreq_notifier(), that may be invoked while
+    cpu_hotplug_lock is held, e.g. from cpufreq_boost_trigger_state(), and many
+    operations need to take cpu_hotplug_lock when loading a vendor module, e.g.
+    updating static calls.

Documentation/virt/uml/user_mode_linux_howto_v2.rst

@@ -217,6 +217,8 @@ remote UML and other VM instances.
 +-----------+--------+------------------------------------+------------+
 | fd        | vector | dependent on fd type               | varies     |
 +-----------+--------+------------------------------------+------------+
+| vde       | vector | dep. on VDE VPN: Virt.Net Locator  | varies     |
++-----------+--------+------------------------------------+------------+
 | tuntap    | legacy | none                               | ~ 500Mbit  |
 +-----------+--------+------------------------------------+------------+
 | daemon    | legacy | none                               | ~ 450Mbit  |
@@ -573,6 +575,41 @@ https://github.com/NetSys/bess/wiki/Built-In-Modules-and-Ports
 
 BESS transport does not require any special privileges.
 
+VDE vector transport
+--------------------
+
+Virtual Distributed Ethernet (VDE) is a project whose main goal is to provide a
+highly flexible support for virtual networking.
+
+http://wiki.virtualsquare.org/#/tutorials/vdebasics
+
+Common usages of VDE include fast prototyping and teaching.
+
+Examples:
+
+   ``vecX:transport=vde,vnl=tap://tap0``
+
+use tap0
+
+   ``vecX:transport=vde,vnl=slirp://``
+
+use slirp
+
+   ``vec0:transport=vde,vnl=vde:///tmp/switch``
+
+connect to a vde switch
+
+   ``vecX:transport=\"vde,vnl=cmd://ssh remote.host //tmp/sshlirp\"``
+
+connect to a remote slirp (instant VPN: convert ssh to VPN, it uses sshlirp)
+https://github.com/virtualsquare/sshlirp
+
+   ``vec0:transport=vde,vnl=vxvde://234.0.0.1``
+
+connect to a local area cloud (all the UML nodes using the same
+multicast address running on hosts in the same multicast domain (LAN)
+will be automagically connected together to a virtual LAN.
+
 Configuring Legacy transports
 =============================
 

Documentation/watchdog/convert_drivers_to_kernel_api.rst

@@ -75,7 +75,6 @@ Example conversion::
 
   -static const struct file_operations s3c2410wdt_fops = {
   -       .owner          = THIS_MODULE,
-  -       .llseek         = no_llseek,
   -       .write          = s3c2410wdt_write,
   -       .unlocked_ioctl = s3c2410wdt_ioctl,
   -       .open           = s3c2410wdt_open,

MAINTAINERS

@@ -2272,6 +2272,7 @@ N:	clps711x
 ARM/CIRRUS LOGIC EP93XX ARM ARCHITECTURE
 M:	Hartley Sweeten <hsweeten@visionengravers.com>
 M:	Alexander Sverdlin <alexander.sverdlin@gmail.com>
+M:	Nikita Shubin <nikita.shubin@maquefel.me>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	Documentation/devicetree/bindings/iio/adc/cirrus,ep9301-adc.yaml
@@ -5727,8 +5728,7 @@ L:	linux-cxl@vger.kernel.org
 S:	Maintained
 F:	Documentation/driver-api/cxl
 F:	drivers/cxl/
-F:	include/linux/einj-cxl.h
-F:	include/linux/cxl-event.h
+F:	include/cxl/
 F:	include/uapi/linux/cxl_mem.h
 F:	tools/testing/cxl/
 
@@ -15678,6 +15678,9 @@ F:	include/dt-bindings/clock/mobileye,eyeq5-clk.h
 
 MODULE SUPPORT
 M:	Luis Chamberlain <mcgrof@kernel.org>
+R:	Petr Pavlu <petr.pavlu@suse.com>
+R:	Sami Tolvanen <samitolvanen@google.com>
+R:	Daniel Gomez <da.gomez@samsung.com>
 L:	linux-modules@vger.kernel.org
 L:	linux-kernel@vger.kernel.org
 S:	Maintained
@@ -19344,10 +19347,7 @@ F:	drivers/char/random.c
 F:	include/linux/random.h
 F:	include/uapi/linux/random.h
 F:	drivers/virt/vmgenid.c
-F:	include/vdso/getrandom.h
-F:	lib/vdso/getrandom.c
-F:	arch/x86/entry/vdso/vgetrandom*
-F:	arch/x86/include/asm/vdso/getrandom*
+N:	^.*/vdso/[^/]*getrandom[^/]+$
 
 RAPIDIO SUBSYSTEM
 M:	Matt Porter <mporter@kernel.crashing.org>

Makefile

@@ -1,8 +1,8 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 6
-PATCHLEVEL = 11
+PATCHLEVEL = 12
 SUBLEVEL = 0
-EXTRAVERSION =
+EXTRAVERSION = -rc1
 NAME = Baby Opossum Posse
 
 # *DOCUMENTATION*

arch/alpha/include/asm/cmpxchg.h

@@ -3,17 +3,232 @@
 #define _ALPHA_CMPXCHG_H
 
 /*
- * Atomic exchange routines.
+ * Atomic exchange.
+ * Since it can be used to implement critical sections
+ * it must clobber "memory" (also for interrupts in UP).
  */
 
-#define ____xchg(type, args...)		__arch_xchg ## type ## _local(args)
-#define ____cmpxchg(type, args...)	__cmpxchg ## type ## _local(args)
-#include <asm/xchg.h>
+static inline unsigned long
+____xchg_u8(volatile char *m, unsigned long val)
+{
+	unsigned long ret, tmp, addr64;
+
+	__asm__ __volatile__(
+	"	andnot	%4,7,%3\n"
+	"	insbl	%1,%4,%1\n"
+	"1:	ldq_l	%2,0(%3)\n"
+	"	extbl	%2,%4,%0\n"
+	"	mskbl	%2,%4,%2\n"
+	"	or	%1,%2,%2\n"
+	"	stq_c	%2,0(%3)\n"
+	"	beq	%2,2f\n"
+	".subsection 2\n"
+	"2:	br	1b\n"
+	".previous"
+	: "=&r" (ret), "=&r" (val), "=&r" (tmp), "=&r" (addr64)
+	: "r" ((long)m), "1" (val) : "memory");
+
+	return ret;
+}
+
+static inline unsigned long
+____xchg_u16(volatile short *m, unsigned long val)
+{
+	unsigned long ret, tmp, addr64;
+
+	__asm__ __volatile__(
+	"	andnot	%4,7,%3\n"
+	"	inswl	%1,%4,%1\n"
+	"1:	ldq_l	%2,0(%3)\n"
+	"	extwl	%2,%4,%0\n"
+	"	mskwl	%2,%4,%2\n"
+	"	or	%1,%2,%2\n"
+	"	stq_c	%2,0(%3)\n"
+	"	beq	%2,2f\n"
+	".subsection 2\n"
+	"2:	br	1b\n"
+	".previous"
+	: "=&r" (ret), "=&r" (val), "=&r" (tmp), "=&r" (addr64)
+	: "r" ((long)m), "1" (val) : "memory");
+
+	return ret;
+}
+
+static inline unsigned long
+____xchg_u32(volatile int *m, unsigned long val)
+{
+	unsigned long dummy;
+
+	__asm__ __volatile__(
+	"1:	ldl_l %0,%4\n"
+	"	bis $31,%3,%1\n"
+	"	stl_c %1,%2\n"
+	"	beq %1,2f\n"
+	".subsection 2\n"
+	"2:	br 1b\n"
+	".previous"
+	: "=&r" (val), "=&r" (dummy), "=m" (*m)
+	: "rI" (val), "m" (*m) : "memory");
+
+	return val;
+}
+
+static inline unsigned long
+____xchg_u64(volatile long *m, unsigned long val)
+{
+	unsigned long dummy;
+
+	__asm__ __volatile__(
+	"1:	ldq_l %0,%4\n"
+	"	bis $31,%3,%1\n"
+	"	stq_c %1,%2\n"
+	"	beq %1,2f\n"
+	".subsection 2\n"
+	"2:	br 1b\n"
+	".previous"
+	: "=&r" (val), "=&r" (dummy), "=m" (*m)
+	: "rI" (val), "m" (*m) : "memory");
+
+	return val;
+}
+
+/* This function doesn't exist, so you'll get a linker error
+   if something tries to do an invalid xchg().  */
+extern void __xchg_called_with_bad_pointer(void);
+
+static __always_inline unsigned long
+____xchg(volatile void *ptr, unsigned long x, int size)
+{
+	return
+		size == 1 ? ____xchg_u8(ptr, x) :
+		size == 2 ? ____xchg_u16(ptr, x) :
+		size == 4 ? ____xchg_u32(ptr, x) :
+		size == 8 ? ____xchg_u64(ptr, x) :
+			(__xchg_called_with_bad_pointer(), x);
+}
+
+/*
+ * Atomic compare and exchange.  Compare OLD with MEM, if identical,
+ * store NEW in MEM.  Return the initial value in MEM.  Success is
+ * indicated by comparing RETURN with OLD.
+ */
+
+static inline unsigned long
+____cmpxchg_u8(volatile char *m, unsigned char old, unsigned char new)
+{
+	unsigned long prev, tmp, cmp, addr64;
+
+	__asm__ __volatile__(
+	"	andnot	%5,7,%4\n"
+	"	insbl	%1,%5,%1\n"
+	"1:	ldq_l	%2,0(%4)\n"
+	"	extbl	%2,%5,%0\n"
+	"	cmpeq	%0,%6,%3\n"
+	"	beq	%3,2f\n"
+	"	mskbl	%2,%5,%2\n"
+	"	or	%1,%2,%2\n"
+	"	stq_c	%2,0(%4)\n"
+	"	beq	%2,3f\n"
+	"2:\n"
+	".subsection 2\n"
+	"3:	br	1b\n"
+	".previous"
+	: "=&r" (prev), "=&r" (new), "=&r" (tmp), "=&r" (cmp), "=&r" (addr64)
+	: "r" ((long)m), "Ir" (old), "1" (new) : "memory");
+
+	return prev;
+}
+
+static inline unsigned long
+____cmpxchg_u16(volatile short *m, unsigned short old, unsigned short new)
+{
+	unsigned long prev, tmp, cmp, addr64;
+
+	__asm__ __volatile__(
+	"	andnot	%5,7,%4\n"
+	"	inswl	%1,%5,%1\n"
+	"1:	ldq_l	%2,0(%4)\n"
+	"	extwl	%2,%5,%0\n"
+	"	cmpeq	%0,%6,%3\n"
+	"	beq	%3,2f\n"
+	"	mskwl	%2,%5,%2\n"
+	"	or	%1,%2,%2\n"
+	"	stq_c	%2,0(%4)\n"
+	"	beq	%2,3f\n"
+	"2:\n"
+	".subsection 2\n"
+	"3:	br	1b\n"
+	".previous"
+	: "=&r" (prev), "=&r" (new), "=&r" (tmp), "=&r" (cmp), "=&r" (addr64)
+	: "r" ((long)m), "Ir" (old), "1" (new) : "memory");
+
+	return prev;
+}
+
+static inline unsigned long
+____cmpxchg_u32(volatile int *m, int old, int new)
+{
+	unsigned long prev, cmp;
+
+	__asm__ __volatile__(
+	"1:	ldl_l %0,%5\n"
+	"	cmpeq %0,%3,%1\n"
+	"	beq %1,2f\n"
+	"	mov %4,%1\n"
+	"	stl_c %1,%2\n"
+	"	beq %1,3f\n"
+	"2:\n"
+	".subsection 2\n"
+	"3:	br 1b\n"
+	".previous"
+	: "=&r"(prev), "=&r"(cmp), "=m"(*m)
+	: "r"((long) old), "r"(new), "m"(*m) : "memory");
+
+	return prev;
+}
+
+static inline unsigned long
+____cmpxchg_u64(volatile long *m, unsigned long old, unsigned long new)
+{
+	unsigned long prev, cmp;
+
+	__asm__ __volatile__(
+	"1:	ldq_l %0,%5\n"
+	"	cmpeq %0,%3,%1\n"
+	"	beq %1,2f\n"
+	"	mov %4,%1\n"
+	"	stq_c %1,%2\n"
+	"	beq %1,3f\n"
+	"2:\n"
+	".subsection 2\n"
+	"3:	br 1b\n"
+	".previous"
+	: "=&r"(prev), "=&r"(cmp), "=m"(*m)
+	: "r"((long) old), "r"(new), "m"(*m) : "memory");
+
+	return prev;
+}
+
+/* This function doesn't exist, so you'll get a linker error
+   if something tries to do an invalid cmpxchg().  */
+extern void __cmpxchg_called_with_bad_pointer(void);
+
+static __always_inline unsigned long
+____cmpxchg(volatile void *ptr, unsigned long old, unsigned long new,
+	      int size)
+{
+	return
+		size == 1 ? ____cmpxchg_u8(ptr, old, new) :
+		size == 2 ? ____cmpxchg_u16(ptr, old, new) :
+		size == 4 ? ____cmpxchg_u32(ptr, old, new) :
+		size == 8 ? ____cmpxchg_u64(ptr, old, new) :
+			(__cmpxchg_called_with_bad_pointer(), old);
+}
 
 #define xchg_local(ptr, x)						\
 ({									\
 	__typeof__(*(ptr)) _x_ = (x);					\
-	(__typeof__(*(ptr))) __arch_xchg_local((ptr), (unsigned long)_x_,\
+	(__typeof__(*(ptr))) ____xchg((ptr), (unsigned long)_x_,	\
 					       sizeof(*(ptr)));		\
 })
 
@@ -21,7 +236,7 @@
 ({									\
 	__typeof__(*(ptr)) _o_ = (o);					\
 	__typeof__(*(ptr)) _n_ = (n);					\
-	(__typeof__(*(ptr))) __cmpxchg_local((ptr), (unsigned long)_o_,	\
+	(__typeof__(*(ptr))) ____cmpxchg((ptr), (unsigned long)_o_,	\
 					  (unsigned long)_n_,		\
 					  sizeof(*(ptr)));		\
 })
@@ -32,12 +247,6 @@
 	cmpxchg_local((ptr), (o), (n));					\
 })
 
-#undef ____xchg
-#undef ____cmpxchg
-#define ____xchg(type, args...)		__arch_xchg ##type(args)
-#define ____cmpxchg(type, args...)	__cmpxchg ##type(args)
-#include <asm/xchg.h>
-
 /*
  * The leading and the trailing memory barriers guarantee that these
  * operations are fully ordered.
@@ -48,7 +257,7 @@
 	__typeof__(*(ptr)) _x_ = (x);					\
 	smp_mb();							\
 	__ret = (__typeof__(*(ptr)))					\
-		__arch_xchg((ptr), (unsigned long)_x_, sizeof(*(ptr)));	\
+		____xchg((ptr), (unsigned long)_x_, sizeof(*(ptr)));	\
 	smp_mb();							\
 	__ret;								\
 })
@@ -59,7 +268,7 @@
 	__typeof__(*(ptr)) _o_ = (o);					\
 	__typeof__(*(ptr)) _n_ = (n);					\
 	smp_mb();							\
-	__ret = (__typeof__(*(ptr))) __cmpxchg((ptr),			\
+	__ret = (__typeof__(*(ptr))) ____cmpxchg((ptr),			\
 		(unsigned long)_o_, (unsigned long)_n_, sizeof(*(ptr)));\
 	smp_mb();							\
 	__ret;								\
@@ -71,6 +280,4 @@
 	arch_cmpxchg((ptr), (o), (n));					\
 })
 
-#undef ____cmpxchg
-
 #endif /* _ALPHA_CMPXCHG_H */

arch/alpha/include/asm/xchg.h

@@ -1,246 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ALPHA_CMPXCHG_H
-#error Do not include xchg.h directly!
-#else
-/*
- * xchg/xchg_local and cmpxchg/cmpxchg_local share the same code
- * except that local version do not have the expensive memory barrier.
- * So this file is included twice from asm/cmpxchg.h.
- */
-
-/*
- * Atomic exchange.
- * Since it can be used to implement critical sections
- * it must clobber "memory" (also for interrupts in UP).
- */
-
-static inline unsigned long
-____xchg(_u8, volatile char *m, unsigned long val)
-{
-	unsigned long ret, tmp, addr64;
-
-	__asm__ __volatile__(
-	"	andnot	%4,7,%3\n"
-	"	insbl	%1,%4,%1\n"
-	"1:	ldq_l	%2,0(%3)\n"
-	"	extbl	%2,%4,%0\n"
-	"	mskbl	%2,%4,%2\n"
-	"	or	%1,%2,%2\n"
-	"	stq_c	%2,0(%3)\n"
-	"	beq	%2,2f\n"
-	".subsection 2\n"
-	"2:	br	1b\n"
-	".previous"
-	: "=&r" (ret), "=&r" (val), "=&r" (tmp), "=&r" (addr64)
-	: "r" ((long)m), "1" (val) : "memory");
-
-	return ret;
-}
-
-static inline unsigned long
-____xchg(_u16, volatile short *m, unsigned long val)
-{
-	unsigned long ret, tmp, addr64;
-
-	__asm__ __volatile__(
-	"	andnot	%4,7,%3\n"
-	"	inswl	%1,%4,%1\n"
-	"1:	ldq_l	%2,0(%3)\n"
-	"	extwl	%2,%4,%0\n"
-	"	mskwl	%2,%4,%2\n"
-	"	or	%1,%2,%2\n"
-	"	stq_c	%2,0(%3)\n"
-	"	beq	%2,2f\n"
-	".subsection 2\n"
-	"2:	br	1b\n"
-	".previous"
-	: "=&r" (ret), "=&r" (val), "=&r" (tmp), "=&r" (addr64)
-	: "r" ((long)m), "1" (val) : "memory");
-
-	return ret;
-}
-
-static inline unsigned long
-____xchg(_u32, volatile int *m, unsigned long val)
-{
-	unsigned long dummy;
-
-	__asm__ __volatile__(
-	"1:	ldl_l %0,%4\n"
-	"	bis $31,%3,%1\n"
-	"	stl_c %1,%2\n"
-	"	beq %1,2f\n"
-	".subsection 2\n"
-	"2:	br 1b\n"
-	".previous"
-	: "=&r" (val), "=&r" (dummy), "=m" (*m)
-	: "rI" (val), "m" (*m) : "memory");
-
-	return val;
-}
-
-static inline unsigned long
-____xchg(_u64, volatile long *m, unsigned long val)
-{
-	unsigned long dummy;
-
-	__asm__ __volatile__(
-	"1:	ldq_l %0,%4\n"
-	"	bis $31,%3,%1\n"
-	"	stq_c %1,%2\n"
-	"	beq %1,2f\n"
-	".subsection 2\n"
-	"2:	br 1b\n"
-	".previous"
-	: "=&r" (val), "=&r" (dummy), "=m" (*m)
-	: "rI" (val), "m" (*m) : "memory");
-
-	return val;
-}
-
-/* This function doesn't exist, so you'll get a linker error
-   if something tries to do an invalid xchg().  */
-extern void __xchg_called_with_bad_pointer(void);
-
-static __always_inline unsigned long
-____xchg(, volatile void *ptr, unsigned long x, int size)
-{
-	switch (size) {
-		case 1:
-			return ____xchg(_u8, ptr, x);
-		case 2:
-			return ____xchg(_u16, ptr, x);
-		case 4:
-			return ____xchg(_u32, ptr, x);
-		case 8:
-			return ____xchg(_u64, ptr, x);
-	}
-	__xchg_called_with_bad_pointer();
-	return x;
-}
-
-/*
- * Atomic compare and exchange.  Compare OLD with MEM, if identical,
- * store NEW in MEM.  Return the initial value in MEM.  Success is
- * indicated by comparing RETURN with OLD.
- */
-
-static inline unsigned long
-____cmpxchg(_u8, volatile char *m, unsigned char old, unsigned char new)
-{
-	unsigned long prev, tmp, cmp, addr64;
-
-	__asm__ __volatile__(
-	"	andnot	%5,7,%4\n"
-	"	insbl	%1,%5,%1\n"
-	"1:	ldq_l	%2,0(%4)\n"
-	"	extbl	%2,%5,%0\n"
-	"	cmpeq	%0,%6,%3\n"
-	"	beq	%3,2f\n"
-	"	mskbl	%2,%5,%2\n"
-	"	or	%1,%2,%2\n"
-	"	stq_c	%2,0(%4)\n"
-	"	beq	%2,3f\n"
-	"2:\n"
-	".subsection 2\n"
-	"3:	br	1b\n"
-	".previous"
-	: "=&r" (prev), "=&r" (new), "=&r" (tmp), "=&r" (cmp), "=&r" (addr64)
-	: "r" ((long)m), "Ir" (old), "1" (new) : "memory");
-
-	return prev;
-}
-
-static inline unsigned long
-____cmpxchg(_u16, volatile short *m, unsigned short old, unsigned short new)
-{
-	unsigned long prev, tmp, cmp, addr64;
-
-	__asm__ __volatile__(
-	"	andnot	%5,7,%4\n"
-	"	inswl	%1,%5,%1\n"
-	"1:	ldq_l	%2,0(%4)\n"
-	"	extwl	%2,%5,%0\n"
-	"	cmpeq	%0,%6,%3\n"
-	"	beq	%3,2f\n"
-	"	mskwl	%2,%5,%2\n"
-	"	or	%1,%2,%2\n"
-	"	stq_c	%2,0(%4)\n"
-	"	beq	%2,3f\n"
-	"2:\n"
-	".subsection 2\n"
-	"3:	br	1b\n"
-	".previous"
-	: "=&r" (prev), "=&r" (new), "=&r" (tmp), "=&r" (cmp), "=&r" (addr64)
-	: "r" ((long)m), "Ir" (old), "1" (new) : "memory");
-
-	return prev;
-}
-
-static inline unsigned long
-____cmpxchg(_u32, volatile int *m, int old, int new)
-{
-	unsigned long prev, cmp;
-
-	__asm__ __volatile__(
-	"1:	ldl_l %0,%5\n"
-	"	cmpeq %0,%3,%1\n"
-	"	beq %1,2f\n"
-	"	mov %4,%1\n"
-	"	stl_c %1,%2\n"
-	"	beq %1,3f\n"
-	"2:\n"
-	".subsection 2\n"
-	"3:	br 1b\n"
-	".previous"
-	: "=&r"(prev), "=&r"(cmp), "=m"(*m)
-	: "r"((long) old), "r"(new), "m"(*m) : "memory");
-
-	return prev;
-}
-
-static inline unsigned long
-____cmpxchg(_u64, volatile long *m, unsigned long old, unsigned long new)
-{
-	unsigned long prev, cmp;
-
-	__asm__ __volatile__(
-	"1:	ldq_l %0,%5\n"
-	"	cmpeq %0,%3,%1\n"
-	"	beq %1,2f\n"
-	"	mov %4,%1\n"
-	"	stq_c %1,%2\n"
-	"	beq %1,3f\n"
-	"2:\n"
-	".subsection 2\n"
-	"3:	br 1b\n"
-	".previous"
-	: "=&r"(prev), "=&r"(cmp), "=m"(*m)
-	: "r"((long) old), "r"(new), "m"(*m) : "memory");
-
-	return prev;
-}
-
-/* This function doesn't exist, so you'll get a linker error
-   if something tries to do an invalid cmpxchg().  */
-extern void __cmpxchg_called_with_bad_pointer(void);
-
-static __always_inline unsigned long
-____cmpxchg(, volatile void *ptr, unsigned long old, unsigned long new,
-	      int size)
-{
-	switch (size) {
-		case 1:
-			return ____cmpxchg(_u8, ptr, old, new);
-		case 2:
-			return ____cmpxchg(_u16, ptr, old, new);
-		case 4:
-			return ____cmpxchg(_u32, ptr, old, new);
-		case 8:
-			return ____cmpxchg(_u64, ptr, old, new);
-	}
-	__cmpxchg_called_with_bad_pointer();
-	return old;
-}
-
-#endif

arch/alpha/kernel/traps.c

@@ -22,7 +22,7 @@
 
 #include <asm/gentrap.h>
 #include <linux/uaccess.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
 #include <asm/sysinfo.h>
 #include <asm/hwrpb.h>
 #include <asm/mmu_context.h>

arch/arc/include/asm/io.h

@@ -9,7 +9,7 @@
 #include <linux/types.h>
 #include <asm/byteorder.h>
 #include <asm/page.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
 
 #ifdef CONFIG_ISA_ARCV2
 #include <asm/barrier.h>

arch/arc/include/asm/mmu.h

@@ -14,6 +14,7 @@ typedef struct {
 	unsigned long asid[NR_CPUS];	/* 8 bit MMU PID + Generation cycle */
 } mm_context_t;
 
+struct pt_regs;
 extern void do_tlb_overlap_fault(unsigned long, unsigned long, struct pt_regs *);
 
 #endif

arch/arc/include/asm/unaligned.h

@@ -1,27 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
- */
-
-#ifndef _ASM_ARC_UNALIGNED_H
-#define _ASM_ARC_UNALIGNED_H
-
-/* ARC700 can't handle unaligned Data accesses. */
-
-#include <asm-generic/unaligned.h>
-#include <asm/ptrace.h>
-
-#ifdef CONFIG_ARC_EMUL_UNALIGNED
-int misaligned_fixup(unsigned long address, struct pt_regs *regs,
-		     struct callee_regs *cregs);
-#else
-static inline int
-misaligned_fixup(unsigned long address, struct pt_regs *regs,
-		 struct callee_regs *cregs)
-{
-	/* Not fixed */
-	return 1;
-}
-#endif
-
-#endif /* _ASM_ARC_UNALIGNED_H */

arch/arc/kernel/traps.c

@@ -18,8 +18,9 @@
 #include <linux/kgdb.h>
 #include <asm/entry.h>
 #include <asm/setup.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
 #include <asm/kprobes.h>
+#include "unaligned.h"
 
 void die(const char *str, struct pt_regs *regs, unsigned long address)
 {

arch/arc/kernel/unaligned.c

@@ -12,6 +12,7 @@
 #include <linux/ptrace.h>
 #include <linux/uaccess.h>
 #include <asm/disasm.h>
+#include "unaligned.h"
 
 #ifdef CONFIG_CPU_BIG_ENDIAN
 #define BE		1

arch/arc/kernel/unaligned.h

@@ -0,0 +1,16 @@
+struct pt_regs;
+struct callee_regs;
+
+#ifdef CONFIG_ARC_EMUL_UNALIGNED
+int misaligned_fixup(unsigned long address, struct pt_regs *regs,
+		     struct callee_regs *cregs);
+#else
+static inline int
+misaligned_fixup(unsigned long address, struct pt_regs *regs,
+		 struct callee_regs *cregs)
+{
+	/* Not fixed */
+	return 1;
+}
+#endif
+

arch/arc/kernel/unwind.c

@@ -19,7 +19,7 @@
 #include <linux/uaccess.h>
 #include <linux/ptrace.h>
 #include <asm/sections.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
 #include <asm/unwind.h>
 
 extern char __start_unwind[], __end_unwind[];

arch/arm/Makefile

@@ -183,7 +183,6 @@ machine-$(CONFIG_ARCH_CLPS711X)		+= clps711x
 machine-$(CONFIG_ARCH_DAVINCI)		+= davinci
 machine-$(CONFIG_ARCH_DIGICOLOR)	+= digicolor
 machine-$(CONFIG_ARCH_DOVE)		+= dove
-machine-$(CONFIG_ARCH_EP93XX)		+= ep93xx
 machine-$(CONFIG_ARCH_EXYNOS)		+= exynos
 machine-$(CONFIG_ARCH_FOOTBRIDGE)	+= footbridge
 machine-$(CONFIG_ARCH_GEMINI)		+= gemini

arch/arm/boot/dts/cirrus/Makefile

@@ -3,3 +3,7 @@ dtb-$(CONFIG_ARCH_CLPS711X) += \
 	ep7211-edb7211.dtb
 dtb-$(CONFIG_ARCH_CLPS711X) += \
 	ep7211-edb7211.dtb
+dtb-$(CONFIG_ARCH_EP93XX) += \
+	ep93xx-edb9302.dtb \
+	ep93xx-bk3.dtb \
+	ep93xx-ts7250.dtb

arch/arm/boot/dts/cirrus/ep93xx-bk3.dts

@@ -0,0 +1,125 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree file for Liebherr controller BK3.1 based on Cirrus EP9302 SoC
+ */
+/dts-v1/;
+#include "ep93xx.dtsi"
+
+/ {
+	model = "Liebherr controller BK3.1";
+	compatible = "liebherr,bk3", "cirrus,ep9301";
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	chosen {
+	};
+
+	memory@0 {
+		device_type = "memory";
+		/* should be set from ATAGS */
+		reg = <0x00000000 0x02000000>,
+		      <0x000530c0 0x01fdd000>;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		led-0 {
+			label = "grled";
+			gpios = <&gpio4 0 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+			function = LED_FUNCTION_HEARTBEAT;
+		};
+
+		led-1 {
+			label = "rdled";
+			gpios = <&gpio4 1 GPIO_ACTIVE_HIGH>;
+			function = LED_FUNCTION_FAULT;
+		};
+	};
+};
+
+&ebi {
+	nand-controller@60000000 {
+		compatible = "technologic,ts7200-nand";
+		reg = <0x60000000 0x8000000>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		nand@0 {
+			reg = <0>;
+			partitions {
+				compatible = "fixed-partitions";
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				partition@0 {
+					label = "System";
+					reg = <0x00000000 0x01e00000>;
+					read-only;
+				};
+
+				partition@1e00000 {
+					label = "Data";
+					reg = <0x01e00000 0x05f20000>;
+				};
+
+				partition@7d20000 {
+					label = "RedBoot";
+					reg = <0x07d20000 0x002e0000>;
+					read-only;
+				};
+			};
+		};
+	};
+};
+
+&eth0 {
+	phy-handle = <&phy0>;
+};
+
+&i2s {
+	dmas = <&dma0 0 1>, <&dma0 0 2>;
+	dma-names = "tx", "rx";
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2s_on_ac97_pins>;
+	status = "okay";
+};
+
+&gpio1 {
+	/* PWM */
+	gpio-ranges = <&syscon 6 163 1>;
+};
+
+&gpio4 {
+	gpio-ranges = <&syscon 0 97 2>;
+	status = "okay";
+};
+
+&gpio6 {
+	gpio-ranges = <&syscon 0 87 2>;
+	status = "okay";
+};
+
+&gpio7 {
+	gpio-ranges = <&syscon 2 199 4>;
+	status = "okay";
+};
+
+&mdio0 {
+	phy0: ethernet-phy@1 {
+		reg = <1>;
+		device_type = "ethernet-phy";
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&uart1 {
+	status = "okay";
+};
+
+&usb0 {
+	status = "okay";
+};

arch/arm/boot/dts/cirrus/ep93xx-edb9302.dts

@@ -0,0 +1,181 @@
+// SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+/*
+ * Device Tree file for Cirrus Logic EDB9302 board based on EP9302 SoC
+ */
+/dts-v1/;
+#include "ep93xx.dtsi"
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	compatible = "cirrus,edb9302", "cirrus,ep9301";
+	model = "cirrus,edb9302";
+
+	chosen {
+	};
+
+	memory@0 {
+		device_type = "memory";
+		/* should be set from ATAGS */
+		reg = <0x0000000 0x800000>,
+		      <0x1000000 0x800000>,
+		      <0x4000000 0x800000>,
+		      <0x5000000 0x800000>;
+	};
+
+	sound {
+		compatible = "audio-graph-card2";
+		label = "EDB93XX";
+		links = <&i2s_port>;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		led-0 {
+			label = "grled";
+			gpios = <&gpio4 0 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+			function = LED_FUNCTION_HEARTBEAT;
+		};
+
+		led-1 {
+			label = "rdled";
+			gpios = <&gpio4 1 GPIO_ACTIVE_HIGH>;
+			function = LED_FUNCTION_FAULT;
+		};
+	};
+};
+
+&adc {
+	status = "okay";
+};
+
+&ebi {
+	flash@60000000 {
+		compatible = "cfi-flash";
+		reg = <0x60000000 0x1000000>;
+		bank-width = <2>;
+	};
+};
+
+&eth0 {
+	phy-handle = <&phy0>;
+};
+
+&gpio0 {
+	gpio-ranges = <&syscon 0 153 1>,
+		      <&syscon 1 152 1>,
+		      <&syscon 2 151 1>,
+		      <&syscon 3 148 1>,
+		      <&syscon 4 147 1>,
+		      <&syscon 5 146 1>,
+		      <&syscon 6 145 1>,
+		      <&syscon 7 144 1>;
+};
+
+&gpio1 {
+	gpio-ranges = <&syscon 0 143 1>,
+		      <&syscon 1 142 1>,
+		      <&syscon 2 141 1>,
+		      <&syscon 3 140 1>,
+		      <&syscon 4 165 1>,
+		      <&syscon 5 164 1>,
+		      <&syscon 6 163 1>,
+		      <&syscon 7 160 1>;
+};
+
+&gpio2 {
+	gpio-ranges = <&syscon 0 115 1>;
+};
+
+/* edb9302 doesn't have GPIO Port D present */
+&gpio3 {
+	status = "disabled";
+};
+
+&gpio4 {
+	gpio-ranges = <&syscon 0 97 2>;
+};
+
+&gpio5 {
+	gpio-ranges = <&syscon 1 170 1>,
+		      <&syscon 2 169 1>,
+		      <&syscon 3 168 1>;
+};
+
+&gpio6 {
+	gpio-ranges = <&syscon 0 87 2>;
+};
+
+&gpio7 {
+	gpio-ranges = <&syscon 2 199 4>;
+};
+
+&i2s {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2s_on_ac97_pins>;
+	status = "okay";
+	i2s_port: port {
+		i2s_ep: endpoint {
+			system-clock-direction-out;
+			frame-master;
+			bitclock-master;
+			mclk-fs = <256>;
+			dai-format = "i2s";
+			convert-channels = <2>;
+			convert-sample-format = "s32_le";
+			remote-endpoint = <&codec_ep>;
+		};
+	};
+};
+
+&mdio0 {
+	phy0: ethernet-phy@1 {
+		reg = <1>;
+		device_type = "ethernet-phy";
+	};
+};
+
+&spi0 {
+	cs-gpios = <&gpio0 6 GPIO_ACTIVE_LOW
+		    &gpio0 7 GPIO_ACTIVE_LOW>;
+	dmas = <&dma1 10 2>, <&dma1 10 1>;
+	dma-names = "rx", "tx";
+	status = "okay";
+
+	cs4271: codec@0 {
+		compatible = "cirrus,cs4271";
+		reg = <0>;
+		#sound-dai-cells = <0>;
+		spi-max-frequency = <6000000>;
+		spi-cpol;
+		spi-cpha;
+		reset-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
+		port {
+			codec_ep: endpoint {
+				remote-endpoint = <&i2s_ep>;
+			};
+		};
+	};
+
+	at25f1024: eeprom@1 {
+		compatible = "atmel,at25";
+		reg = <1>;
+		address-width = <8>;
+		size = <0x20000>;
+		pagesize = <256>;
+		spi-max-frequency = <20000000>;
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&uart1 {
+	status = "okay";
+};
+
+&usb0 {
+	status = "okay";
+};

arch/arm/boot/dts/cirrus/ep93xx-ts7250.dts

@@ -0,0 +1,145 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree file for Technologic Systems ts7250 board based on Cirrus EP9302 SoC
+ */
+/dts-v1/;
+#include "ep93xx.dtsi"
+
+/ {
+	compatible = "technologic,ts7250", "cirrus,ep9301";
+	model = "TS-7250 SBC";
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	chosen {
+	};
+
+	memory@0 {
+		device_type = "memory";
+		/* should be set from ATAGS */
+		reg = <0x00000000 0x02000000>,
+		      <0x000530c0 0x01fdd000>;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		led-0 {
+			label = "grled";
+			gpios = <&gpio4 0 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+			function = LED_FUNCTION_HEARTBEAT;
+		};
+
+		led-1 {
+			label = "rdled";
+			gpios = <&gpio4 1 GPIO_ACTIVE_HIGH>;
+			function = LED_FUNCTION_FAULT;
+		};
+	};
+};
+
+&ebi {
+	nand-controller@60000000 {
+		compatible = "technologic,ts7200-nand";
+		reg = <0x60000000 0x8000000>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		nand@0 {
+			reg = <0>;
+			partitions {
+				compatible = "fixed-partitions";
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				partition@0 {
+					label = "TS-BOOTROM";
+					reg = <0x00000000 0x00020000>;
+					read-only;
+				};
+
+				partition@20000 {
+					label = "Linux";
+					reg = <0x00020000 0x07d00000>;
+				};
+
+				partition@7d20000 {
+					label = "RedBoot";
+					reg = <0x07d20000 0x002e0000>;
+					read-only;
+				};
+			};
+		};
+	};
+
+	rtc@10800000 {
+		compatible = "st,m48t86";
+		reg = <0x10800000 0x1>,
+			<0x11700000 0x1>;
+	};
+
+	watchdog@23800000 {
+		compatible = "technologic,ts7200-wdt";
+		reg = <0x23800000 0x01>,
+			<0x23c00000 0x01>;
+		timeout-sec = <30>;
+	};
+};
+
+&eth0 {
+	phy-handle = <&phy0>;
+};
+
+&gpio1 {
+	/* PWM */
+	gpio-ranges = <&syscon 6 163 1>;
+};
+
+/* ts7250 doesn't have GPIO Port D present */
+&gpio3 {
+	status = "disabled";
+};
+
+&gpio4 {
+	gpio-ranges = <&syscon 0 97 2>;
+};
+
+&gpio6 {
+	gpio-ranges = <&syscon 0 87 2>;
+};
+
+&gpio7 {
+	gpio-ranges = <&syscon 2 199 4>;
+};
+
+&spi0 {
+	cs-gpios = <&gpio5 2 GPIO_ACTIVE_HIGH>;
+	dmas = <&dma1 10 2>, <&dma1 10 1>;
+	dma-names = "rx", "tx";
+	status = "okay";
+
+	tmp122: temperature-sensor@0 {
+		compatible = "ti,tmp122";
+		reg = <0>;
+		spi-max-frequency = <2000000>;
+	};
+};
+
+&mdio0 {
+	phy0: ethernet-phy@1 {
+		reg = <1>;
+		device_type = "ethernet-phy";
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&uart1 {
+	status = "okay";
+};
+
+&usb0 {
+	status = "okay";
+};

arch/arm/boot/dts/cirrus/ep93xx.dtsi

@@ -0,0 +1,444 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree file for Cirrus Logic systems EP93XX SoC
+ */
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/clock/cirrus,ep9301-syscon.h>
+/ {
+	soc: soc {
+		compatible = "simple-bus";
+		ranges;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		syscon: syscon@80930000 {
+			compatible = "cirrus,ep9301-syscon", "syscon";
+			reg = <0x80930000 0x1000>;
+
+			#clock-cells = <1>;
+			clocks = <&xtali>;
+
+			spi_default_pins: pins-spi {
+				function = "spi";
+				groups = "ssp";
+			};
+
+			ac97_default_pins: pins-ac97 {
+				function = "ac97";
+				groups = "ac97";
+			};
+
+			i2s_on_ssp_pins: pins-i2sonssp {
+				function = "i2s";
+				groups = "i2s_on_ssp";
+			};
+
+			i2s_on_ac97_pins: pins-i2sonac97 {
+				function = "i2s";
+				groups = "i2s_on_ac97";
+			};
+
+			gpio1_default_pins: pins-gpio1 {
+				function = "gpio";
+				groups = "gpio1agrp";
+			};
+
+			pwm1_default_pins: pins-pwm1 {
+				function = "pwm";
+				groups = "pwm1";
+			};
+
+			gpio2_default_pins: pins-gpio2 {
+				function = "gpio";
+				groups = "gpio2agrp";
+			};
+
+			gpio3_default_pins: pins-gpio3 {
+				function = "gpio";
+				groups = "gpio3agrp";
+			};
+
+			keypad_default_pins: pins-keypad {
+				function = "keypad";
+				groups = "keypadgrp";
+			};
+
+			gpio4_default_pins: pins-gpio4 {
+				function = "gpio";
+				groups = "gpio4agrp";
+			};
+
+			gpio6_default_pins: pins-gpio6 {
+				function = "gpio";
+				groups = "gpio6agrp";
+			};
+
+			gpio7_default_pins: pins-gpio7 {
+				function = "gpio";
+				groups = "gpio7agrp";
+			};
+
+			ide_default_pins: pins-ide {
+				function = "pata";
+				groups = "idegrp";
+			};
+
+			lcd_on_dram0_pins: pins-rasteronsdram0 {
+				function = "lcd";
+				groups = "rasteronsdram0grp";
+			};
+
+			lcd_on_dram3_pins: pins-rasteronsdram3 {
+				function = "lcd";
+				groups = "rasteronsdram3grp";
+			};
+		};
+
+		adc: adc@80900000 {
+			compatible = "cirrus,ep9301-adc";
+			reg = <0x80900000 0x28>;
+			clocks = <&syscon EP93XX_CLK_ADC>;
+			interrupt-parent = <&vic0>;
+			interrupts = <30>;
+			status = "disabled";
+		};
+
+		/*
+		 * The EP93XX expansion bus is a set of up to 7 each up to 16MB
+		 * windows in the 256MB space from 0x50000000 to 0x5fffffff.
+		 * But since we don't require to setup it in any way, we can
+		 * represent it as a simple-bus.
+		 */
+		ebi: bus@80080000 {
+			compatible = "simple-bus";
+			reg = <0x80080000 0x20>;
+			native-endian;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
+		};
+
+		dma0: dma-controller@80000000 {
+			compatible = "cirrus,ep9301-dma-m2p";
+			reg = <0x80000000 0x0040>,
+			      <0x80000040 0x0040>,
+			      <0x80000080 0x0040>,
+			      <0x800000c0 0x0040>,
+			      <0x80000240 0x0040>,
+			      <0x80000200 0x0040>,
+			      <0x800002c0 0x0040>,
+			      <0x80000280 0x0040>,
+			      <0x80000340 0x0040>,
+			      <0x80000300 0x0040>;
+			clocks = <&syscon EP93XX_CLK_M2P0>,
+				 <&syscon EP93XX_CLK_M2P1>,
+				 <&syscon EP93XX_CLK_M2P2>,
+				 <&syscon EP93XX_CLK_M2P3>,
+				 <&syscon EP93XX_CLK_M2P4>,
+				 <&syscon EP93XX_CLK_M2P5>,
+				 <&syscon EP93XX_CLK_M2P6>,
+				 <&syscon EP93XX_CLK_M2P7>,
+				 <&syscon EP93XX_CLK_M2P8>,
+				 <&syscon EP93XX_CLK_M2P9>;
+			clock-names = "m2p0", "m2p1",
+				      "m2p2", "m2p3",
+				      "m2p4", "m2p5",
+				      "m2p6", "m2p7",
+				      "m2p8", "m2p9";
+			interrupt-parent = <&vic0>;
+			interrupts = <7>, <8>, <9>, <10>, <11>,
+				<12>, <13>, <14>, <15>, <16>;
+			#dma-cells = <2>;
+		};
+
+		dma1: dma-controller@80000100 {
+			compatible = "cirrus,ep9301-dma-m2m";
+			reg = <0x80000100 0x0040>,
+			      <0x80000140 0x0040>;
+			clocks = <&syscon EP93XX_CLK_M2M0>,
+				 <&syscon EP93XX_CLK_M2M1>;
+			clock-names = "m2m0", "m2m1";
+			interrupt-parent = <&vic0>;
+			interrupts = <17>, <18>;
+			#dma-cells = <2>;
+		};
+
+		eth0: ethernet@80010000 {
+			compatible = "cirrus,ep9301-eth";
+			reg = <0x80010000 0x10000>;
+			interrupt-parent = <&vic1>;
+			interrupts = <7>;
+			mdio0: mdio {
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+		};
+
+		gpio0: gpio@80840000 {
+			compatible = "cirrus,ep9301-gpio";
+			reg = <0x80840000 0x04>,
+			      <0x80840010 0x04>,
+			      <0x80840090 0x1c>;
+			reg-names = "data", "dir", "intr";
+			gpio-controller;
+			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
+			interrupt-parent = <&vic1>;
+			interrupts = <27>;
+		};
+
+		gpio1: gpio@80840004 {
+			compatible = "cirrus,ep9301-gpio";
+			reg = <0x80840004 0x04>,
+			      <0x80840014 0x04>,
+			      <0x808400ac 0x1c>;
+			reg-names = "data", "dir", "intr";
+			gpio-controller;
+			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
+			interrupt-parent = <&vic1>;
+			interrupts = <27>;
+		};
+
+		gpio2: gpio@80840008 {
+			compatible = "cirrus,ep9301-gpio";
+			reg = <0x80840008 0x04>,
+			      <0x80840018 0x04>;
+			reg-names = "data", "dir";
+			gpio-controller;
+			#gpio-cells = <2>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&gpio2_default_pins>;
+		};
+
+		gpio3: gpio@8084000c {
+			compatible = "cirrus,ep9301-gpio";
+			reg = <0x8084000c 0x04>,
+			      <0x8084001c 0x04>;
+			reg-names = "data", "dir";
+			gpio-controller;
+			#gpio-cells = <2>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&gpio3_default_pins>;
+		};
+
+		gpio4: gpio@80840020 {
+			compatible = "cirrus,ep9301-gpio";
+			reg = <0x80840020 0x04>,
+			      <0x80840024 0x04>;
+			reg-names = "data", "dir";
+			gpio-controller;
+			#gpio-cells = <2>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&gpio4_default_pins>;
+		};
+
+		gpio5: gpio@80840030 {
+			compatible = "cirrus,ep9301-gpio";
+			reg = <0x80840030 0x04>,
+			      <0x80840034 0x04>,
+			      <0x8084004c 0x1c>;
+			reg-names = "data", "dir", "intr";
+			gpio-controller;
+			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
+			interrupts-extended = <&vic0 19>, <&vic0 20>,
+					      <&vic0 21>, <&vic0 22>,
+					      <&vic1 15>, <&vic1 16>,
+					      <&vic1 17>, <&vic1 18>;
+		};
+
+		gpio6: gpio@80840038 {
+			compatible = "cirrus,ep9301-gpio";
+			reg = <0x80840038 0x04>,
+			      <0x8084003c 0x04>;
+			reg-names = "data", "dir";
+			gpio-controller;
+			#gpio-cells = <2>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&gpio6_default_pins>;
+		};
+
+		gpio7: gpio@80840040 {
+			compatible = "cirrus,ep9301-gpio";
+			reg = <0x80840040 0x04>,
+			      <0x80840044 0x04>;
+			reg-names = "data", "dir";
+			gpio-controller;
+			#gpio-cells = <2>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&gpio7_default_pins>;
+		};
+
+		i2s: i2s@80820000 {
+			compatible = "cirrus,ep9301-i2s";
+			reg = <0x80820000 0x100>;
+			#sound-dai-cells = <0>;
+			interrupt-parent = <&vic1>;
+			interrupts = <28>;
+			clocks = <&syscon EP93XX_CLK_I2S_MCLK>,
+				 <&syscon EP93XX_CLK_I2S_SCLK>,
+				 <&syscon EP93XX_CLK_I2S_LRCLK>;
+			clock-names = "mclk", "sclk", "lrclk";
+			dmas = <&dma0 0 1>, <&dma0 0 2>;
+			dma-names = "tx", "rx";
+			status = "disabled";
+		};
+
+		ide: ide@800a0000 {
+			compatible = "cirrus,ep9312-pata";
+			reg = <0x800a0000 0x38>;
+			interrupt-parent = <&vic1>;
+			interrupts = <8>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&ide_default_pins>;
+			status = "disabled";
+		};
+
+		vic0: interrupt-controller@800b0000 {
+			compatible = "arm,pl192-vic";
+			reg = <0x800b0000 0x1000>;
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			valid-mask = <0x7ffffffc>;
+			valid-wakeup-mask = <0x0>;
+		};
+
+		vic1: interrupt-controller@800c0000 {
+			compatible = "arm,pl192-vic";
+			reg = <0x800c0000 0x1000>;
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			valid-mask = <0x1fffffff>;
+			valid-wakeup-mask = <0x0>;
+		};
+
+		keypad: keypad@800f0000 {
+			compatible = "cirrus,ep9307-keypad";
+			reg = <0x800f0000 0x0c>;
+			interrupt-parent = <&vic0>;
+			interrupts = <29>;
+			clocks = <&syscon EP93XX_CLK_KEYPAD>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&keypad_default_pins>;
+			linux,keymap =	<KEY_UP>,
+					<KEY_DOWN>,
+					<KEY_VOLUMEDOWN>,
+					<KEY_HOME>,
+					<KEY_RIGHT>,
+					<KEY_LEFT>,
+					<KEY_ENTER>,
+					<KEY_VOLUMEUP>,
+					<KEY_F6>,
+					<KEY_F8>,
+					<KEY_F9>,
+					<KEY_F10>,
+					<KEY_F1>,
+					<KEY_F2>,
+					<KEY_F3>,
+					<KEY_POWER>;
+		};
+
+		pwm0: pwm@80910000 {
+			compatible = "cirrus,ep9301-pwm";
+			reg = <0x80910000 0x10>;
+			clocks = <&syscon EP93XX_CLK_PWM>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm1: pwm@80910020 {
+			compatible = "cirrus,ep9301-pwm";
+			reg = <0x80910020 0x10>;
+			clocks = <&syscon EP93XX_CLK_PWM>;
+			#pwm-cells = <3>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&pwm1_default_pins>;
+			status = "disabled";
+		};
+
+		rtc0: rtc@80920000 {
+			compatible = "cirrus,ep9301-rtc";
+			reg = <0x80920000 0x100>;
+		};
+
+		spi0: spi@808a0000 {
+			compatible = "cirrus,ep9301-spi";
+			reg = <0x808a0000 0x18>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			interrupt-parent = <&vic1>;
+			interrupts = <21>;
+			clocks = <&syscon EP93XX_CLK_SPI>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&spi_default_pins>;
+			status = "disabled";
+		};
+
+		timer: timer@80810000 {
+			compatible = "cirrus,ep9301-timer";
+			reg = <0x80810000 0x100>;
+			interrupt-parent = <&vic1>;
+			interrupts = <19>;
+		};
+
+		uart0: serial@808c0000 {
+			compatible = "arm,pl011", "arm,primecell";
+			reg = <0x808c0000 0x1000>;
+			arm,primecell-periphid = <0x00041010>;
+			clocks = <&syscon EP93XX_CLK_UART1>, <&syscon EP93XX_CLK_UART>;
+			clock-names = "uartclk", "apb_pclk";
+			interrupt-parent = <&vic1>;
+			interrupts = <20>;
+			status = "disabled";
+		};
+
+		uart1: uart@808d0000 {
+			compatible = "arm,primecell";
+			reg = <0x808d0000 0x1000>;
+			arm,primecell-periphid = <0x00041010>;
+			clocks = <&syscon EP93XX_CLK_UART2>, <&syscon EP93XX_CLK_UART>;
+			clock-names = "apb:uart2", "apb_pclk";
+			interrupt-parent = <&vic1>;
+			interrupts = <22>;
+			status = "disabled";
+		};
+
+		uart2: uart@808b0000 {
+			compatible = "arm,primecell";
+			reg = <0x808b0000 0x1000>;
+			arm,primecell-periphid = <0x00041010>;
+			clocks = <&syscon EP93XX_CLK_UART3>, <&syscon EP93XX_CLK_UART>;
+			clock-names = "apb:uart3", "apb_pclk";
+			interrupt-parent = <&vic1>;
+			interrupts = <23>;
+			status = "disabled";
+		};
+
+		usb0: usb@80020000 {
+			compatible = "generic-ohci";
+			reg = <0x80020000 0x10000>;
+			interrupt-parent = <&vic1>;
+			interrupts = <24>;
+			clocks = <&syscon EP93XX_CLK_USB>;
+			status = "disabled";
+		};
+
+		watchdog0: watchdog@80940000 {
+			compatible = "cirrus,ep9301-wdt";
+			reg = <0x80940000 0x08>;
+		};
+	};
+
+	xtali: oscillator {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <14745600>;
+		clock-output-names = "xtali";
+	};
+};

arch/arm/crypto/aes-ce-glue.c

@@ -8,7 +8,7 @@
 #include <asm/hwcap.h>
 #include <asm/neon.h>
 #include <asm/simd.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
 #include <crypto/aes.h>
 #include <crypto/ctr.h>
 #include <crypto/internal/simd.h>

arch/arm/crypto/crc32-ce-glue.c

@@ -18,7 +18,7 @@
 #include <asm/hwcap.h>
 #include <asm/neon.h>
 #include <asm/simd.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
 
 #define PMULL_MIN_LEN		64L	/* minimum size of buffer
 					 * for crc32_pmull_le_16 */

arch/arm/crypto/ghash-ce-glue.c

@@ -9,7 +9,7 @@
 #include <asm/hwcap.h>
 #include <asm/neon.h>
 #include <asm/simd.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
 #include <crypto/aes.h>
 #include <crypto/gcm.h>
 #include <crypto/b128ops.h>

arch/arm/crypto/poly1305-glue.c

@@ -8,7 +8,7 @@
 #include <asm/hwcap.h>
 #include <asm/neon.h>
 #include <asm/simd.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
 #include <crypto/algapi.h>
 #include <crypto/internal/hash.h>
 #include <crypto/internal/poly1305.h>

arch/arm/crypto/sha2-ce-glue.c

@@ -16,7 +16,7 @@
 #include <asm/hwcap.h>
 #include <asm/simd.h>
 #include <asm/neon.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
 
 #include "sha256_glue.h"
 

arch/arm/include/asm/uaccess.h

@@ -12,7 +12,7 @@
 #include <linux/string.h>
 #include <asm/page.h>
 #include <asm/domain.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
 #include <asm/unified.h>
 #include <asm/pgtable.h>
 #include <asm/proc-fns.h>

arch/arm/mach-ep93xx/Kconfig

@@ -3,27 +3,27 @@ menuconfig ARCH_EP93XX
 	bool "EP93xx-based"
 	depends on ATAGS
 	depends on ARCH_MULTI_V4T
+	# CONFIG_ARCH_MULTI_V7 is not set
 	depends on CPU_LITTLE_ENDIAN
+	select ARCH_HAS_RESET_CONTROLLER
 	select ARCH_SPARSEMEM_ENABLE
 	select ARM_AMBA
 	select ARM_VIC
+	select ARM_APPENDED_DTB # Old Redboot bootloaders deployed
+	select ARM_ATAG_DTB_COMPAT # we need this to update dt memory node
+	select COMMON_CLK_EP93XX
+	select EP93XX_TIMER
 	select CLKSRC_MMIO
 	select CPU_ARM920T
 	select GPIOLIB
+	select PINCTRL
+	select PINCTRL_EP93XX
 	help
 	  This enables support for the Cirrus EP93xx series of CPUs.
 
 if ARCH_EP93XX
 
-menu "Cirrus EP93xx Implementation Options"
-
-config EP93XX_SOC_COMMON
-	bool
-	default y
-	select SOC_BUS
-	select LEDS_GPIO_REGISTER
-
-comment "EP93xx Platforms"
+# menu "EP93xx Platforms"
 
 config MACH_BK3
 	bool "Support Liebherr BK3.1"
@@ -103,6 +103,6 @@ config MACH_VISION_EP9307
 	  Say 'Y' here if you want your kernel to support the
 	  Vision Engraving Systems EP9307 SoM.
 
-endmenu
+# endmenu
 
 endif

arch/arm/mach-ep93xx/Makefile

@@ -1,11 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-#
-# Makefile for the linux kernel.
-#
-obj-y			:= core.o clock.o timer-ep93xx.o
-
-obj-$(CONFIG_EP93XX_DMA)	+= dma.o
-
-obj-$(CONFIG_MACH_EDB93XX)	+= edb93xx.o
-obj-$(CONFIG_MACH_TS72XX)	+= ts72xx.o
-obj-$(CONFIG_MACH_VISION_EP9307)+= vision_ep9307.o

arch/arm/mach-ep93xx/clock.c

@@ -1,733 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * arch/arm/mach-ep93xx/clock.c
- * Clock control for Cirrus EP93xx chips.
- *
- * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
- */
-
-#define pr_fmt(fmt) "ep93xx " KBUILD_MODNAME ": " fmt
-
-#include <linux/kernel.h>
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/io.h>
-#include <linux/spinlock.h>
-#include <linux/clkdev.h>
-#include <linux/clk-provider.h>
-#include <linux/soc/cirrus/ep93xx.h>
-
-#include "hardware.h"
-
-#include <asm/div64.h>
-
-#include "soc.h"
-
-static DEFINE_SPINLOCK(clk_lock);
-
-static char fclk_divisors[] = { 1, 2, 4, 8, 16, 1, 1, 1 };
-static char hclk_divisors[] = { 1, 2, 4, 5, 6, 8, 16, 32 };
-static char pclk_divisors[] = { 1, 2, 4, 8 };
-
-static char adc_divisors[] = { 16, 4 };
-static char sclk_divisors[] = { 2, 4 };
-static char lrclk_divisors[] = { 32, 64, 128 };
-
-static const char * const mux_parents[] = {
-	"xtali",
-	"pll1",
-	"pll2"
-};
-
-/*
- * PLL rate = 14.7456 MHz * (X1FBD + 1) * (X2FBD + 1) / (X2IPD + 1) / 2^PS
- */
-static unsigned long calc_pll_rate(unsigned long long rate, u32 config_word)
-{
-	int i;
-
-	rate *= ((config_word >> 11) & 0x1f) + 1;		/* X1FBD */
-	rate *= ((config_word >> 5) & 0x3f) + 1;		/* X2FBD */
-	do_div(rate, (config_word & 0x1f) + 1);			/* X2IPD */
-	for (i = 0; i < ((config_word >> 16) & 3); i++)		/* PS */
-		rate >>= 1;
-
-	return (unsigned long)rate;
-}
-
-struct clk_psc {
-	struct clk_hw hw;
-	void __iomem *reg;
-	u8 bit_idx;
-	u32 mask;
-	u8 shift;
-	u8 width;
-	char *div;
-	u8 num_div;
-	spinlock_t *lock;
-};
-
-#define to_clk_psc(_hw) container_of(_hw, struct clk_psc, hw)
-
-static int ep93xx_clk_is_enabled(struct clk_hw *hw)
-{
-	struct clk_psc *psc = to_clk_psc(hw);
-	u32 val = readl(psc->reg);
-
-	return (val & BIT(psc->bit_idx)) ? 1 : 0;
-}
-
-static int ep93xx_clk_enable(struct clk_hw *hw)
-{
-	struct clk_psc *psc = to_clk_psc(hw);
-	unsigned long flags = 0;
-	u32 val;
-
-	if (psc->lock)
-		spin_lock_irqsave(psc->lock, flags);
-
-	val = __raw_readl(psc->reg);
-	val |= BIT(psc->bit_idx);
-
-	ep93xx_syscon_swlocked_write(val, psc->reg);
-
-	if (psc->lock)
-		spin_unlock_irqrestore(psc->lock, flags);
-
-	return 0;
-}
-
-static void ep93xx_clk_disable(struct clk_hw *hw)
-{
-	struct clk_psc *psc = to_clk_psc(hw);
-	unsigned long flags = 0;
-	u32 val;
-
-	if (psc->lock)
-		spin_lock_irqsave(psc->lock, flags);
-
-	val = __raw_readl(psc->reg);
-	val &= ~BIT(psc->bit_idx);
-
-	ep93xx_syscon_swlocked_write(val, psc->reg);
-
-	if (psc->lock)
-		spin_unlock_irqrestore(psc->lock, flags);
-}
-
-static const struct clk_ops clk_ep93xx_gate_ops = {
-	.enable = ep93xx_clk_enable,
-	.disable = ep93xx_clk_disable,
-	.is_enabled = ep93xx_clk_is_enabled,
-};
-
-static struct clk_hw *ep93xx_clk_register_gate(const char *name,
-				    const char *parent_name,
-				    void __iomem *reg,
-				    u8 bit_idx)
-{
-	struct clk_init_data init;
-	struct clk_psc *psc;
-	struct clk *clk;
-
-	psc = kzalloc(sizeof(*psc), GFP_KERNEL);
-	if (!psc)
-		return ERR_PTR(-ENOMEM);
-
-	init.name = name;
-	init.ops = &clk_ep93xx_gate_ops;
-	init.flags = CLK_SET_RATE_PARENT;
-	init.parent_names = (parent_name ? &parent_name : NULL);
-	init.num_parents = (parent_name ? 1 : 0);
-
-	psc->reg = reg;
-	psc->bit_idx = bit_idx;
-	psc->hw.init = &init;
-	psc->lock = &clk_lock;
-
-	clk = clk_register(NULL, &psc->hw);
-	if (IS_ERR(clk)) {
-		kfree(psc);
-		return ERR_CAST(clk);
-	}
-
-	return &psc->hw;
-}
-
-static u8 ep93xx_mux_get_parent(struct clk_hw *hw)
-{
-	struct clk_psc *psc = to_clk_psc(hw);
-	u32 val = __raw_readl(psc->reg);
-
-	if (!(val & EP93XX_SYSCON_CLKDIV_ESEL))
-		return 0;
-
-	if (!(val & EP93XX_SYSCON_CLKDIV_PSEL))
-		return 1;
-
-	return 2;
-}
-
-static int ep93xx_mux_set_parent_lock(struct clk_hw *hw, u8 index)
-{
-	struct clk_psc *psc = to_clk_psc(hw);
-	unsigned long flags = 0;
-	u32 val;
-
-	if (index >= ARRAY_SIZE(mux_parents))
-		return -EINVAL;
-
-	if (psc->lock)
-		spin_lock_irqsave(psc->lock, flags);
-
-	val = __raw_readl(psc->reg);
-	val &= ~(EP93XX_SYSCON_CLKDIV_ESEL | EP93XX_SYSCON_CLKDIV_PSEL);
-
-
-	if (index != 0) {
-		val |= EP93XX_SYSCON_CLKDIV_ESEL;
-		val |= (index - 1) ? EP93XX_SYSCON_CLKDIV_PSEL : 0;
-	}
-
-	ep93xx_syscon_swlocked_write(val, psc->reg);
-
-	if (psc->lock)
-		spin_unlock_irqrestore(psc->lock, flags);
-
-	return 0;
-}
-
-static bool is_best(unsigned long rate, unsigned long now,
-		     unsigned long best)
-{
-	return abs(rate - now) < abs(rate - best);
-}
-
-static int ep93xx_mux_determine_rate(struct clk_hw *hw,
-				struct clk_rate_request *req)
-{
-	unsigned long rate = req->rate;
-	struct clk *best_parent = NULL;
-	unsigned long __parent_rate;
-	unsigned long best_rate = 0, actual_rate, mclk_rate;
-	unsigned long best_parent_rate;
-	int __div = 0, __pdiv = 0;
-	int i;
-
-	/*
-	 * Try the two pll's and the external clock
-	 * Because the valid predividers are 2, 2.5 and 3, we multiply
-	 * all the clocks by 2 to avoid floating point math.
-	 *
-	 * This is based on the algorithm in the ep93xx raster guide:
-	 * http://be-a-maverick.com/en/pubs/appNote/AN269REV1.pdf
-	 *
-	 */
-	for (i = 0; i < ARRAY_SIZE(mux_parents); i++) {
-		struct clk *parent = clk_get_sys(mux_parents[i], NULL);
-
-		__parent_rate = clk_get_rate(parent);
-		mclk_rate = __parent_rate * 2;
-
-		/* Try each predivider value */
-		for (__pdiv = 4; __pdiv <= 6; __pdiv++) {
-			__div = mclk_rate / (rate * __pdiv);
-			if (__div < 2 || __div > 127)
-				continue;
-
-			actual_rate = mclk_rate / (__pdiv * __div);
-			if (is_best(rate, actual_rate, best_rate)) {
-				best_rate = actual_rate;
-				best_parent_rate = __parent_rate;
-				best_parent = parent;
-			}
-		}
-	}
-
-	if (!best_parent)
-		return -EINVAL;
-
-	req->best_parent_rate = best_parent_rate;
-	req->best_parent_hw = __clk_get_hw(best_parent);
-	req->rate = best_rate;
-
-	return 0;
-}
-
-static unsigned long ep93xx_ddiv_recalc_rate(struct clk_hw *hw,
-						unsigned long parent_rate)
-{
-	struct clk_psc *psc = to_clk_psc(hw);
-	unsigned long rate = 0;
-	u32 val = __raw_readl(psc->reg);
-	int __pdiv = ((val >> EP93XX_SYSCON_CLKDIV_PDIV_SHIFT) & 0x03);
-	int __div = val & 0x7f;
-
-	if (__div > 0)
-		rate = (parent_rate * 2) / ((__pdiv + 3) * __div);
-
-	return rate;
-}
-
-static int ep93xx_ddiv_set_rate(struct clk_hw *hw, unsigned long rate,
-				unsigned long parent_rate)
-{
-	struct clk_psc *psc = to_clk_psc(hw);
-	int pdiv = 0, div = 0;
-	unsigned long best_rate = 0, actual_rate, mclk_rate;
-	int __div = 0, __pdiv = 0;
-	u32 val;
-
-	mclk_rate = parent_rate * 2;
-
-	for (__pdiv = 4; __pdiv <= 6; __pdiv++) {
-		__div = mclk_rate / (rate * __pdiv);
-		if (__div < 2 || __div > 127)
-			continue;
-
-		actual_rate = mclk_rate / (__pdiv * __div);
-		if (is_best(rate, actual_rate, best_rate)) {
-			pdiv = __pdiv - 3;
-			div = __div;
-			best_rate = actual_rate;
-		}
-	}
-
-	if (!best_rate)
-		return -EINVAL;
-
-	val = __raw_readl(psc->reg);
-
-	/* Clear old dividers */
-	val &= ~0x37f;
-
-	/* Set the new pdiv and div bits for the new clock rate */
-	val |= (pdiv << EP93XX_SYSCON_CLKDIV_PDIV_SHIFT) | div;
-	ep93xx_syscon_swlocked_write(val, psc->reg);
-
-	return 0;
-}
-
-static const struct clk_ops clk_ddiv_ops = {
-	.enable = ep93xx_clk_enable,
-	.disable = ep93xx_clk_disable,
-	.is_enabled = ep93xx_clk_is_enabled,
-	.get_parent = ep93xx_mux_get_parent,
-	.set_parent = ep93xx_mux_set_parent_lock,
-	.determine_rate = ep93xx_mux_determine_rate,
-	.recalc_rate = ep93xx_ddiv_recalc_rate,
-	.set_rate = ep93xx_ddiv_set_rate,
-};
-
-static struct clk_hw *clk_hw_register_ddiv(const char *name,
-					  void __iomem *reg,
-					  u8 bit_idx)
-{
-	struct clk_init_data init;
-	struct clk_psc *psc;
-	struct clk *clk;
-
-	psc = kzalloc(sizeof(*psc), GFP_KERNEL);
-	if (!psc)
-		return ERR_PTR(-ENOMEM);
-
-	init.name = name;
-	init.ops = &clk_ddiv_ops;
-	init.flags = 0;
-	init.parent_names = mux_parents;
-	init.num_parents = ARRAY_SIZE(mux_parents);
-
-	psc->reg = reg;
-	psc->bit_idx = bit_idx;
-	psc->lock = &clk_lock;
-	psc->hw.init = &init;
-
-	clk = clk_register(NULL, &psc->hw);
-	if (IS_ERR(clk)) {
-		kfree(psc);
-		return ERR_CAST(clk);
-	}
-	return &psc->hw;
-}
-
-static unsigned long ep93xx_div_recalc_rate(struct clk_hw *hw,
-					    unsigned long parent_rate)
-{
-	struct clk_psc *psc = to_clk_psc(hw);
-	u32 val = __raw_readl(psc->reg);
-	u8 index = (val & psc->mask) >> psc->shift;
-
-	if (index > psc->num_div)
-		return 0;
-
-	return DIV_ROUND_UP_ULL(parent_rate, psc->div[index]);
-}
-
-static long ep93xx_div_round_rate(struct clk_hw *hw, unsigned long rate,
-				   unsigned long *parent_rate)
-{
-	struct clk_psc *psc = to_clk_psc(hw);
-	unsigned long best = 0, now, maxdiv;
-	int i;
-
-	maxdiv = psc->div[psc->num_div - 1];
-
-	for (i = 0; i < psc->num_div; i++) {
-		if ((rate * psc->div[i]) == *parent_rate)
-			return DIV_ROUND_UP_ULL((u64)*parent_rate, psc->div[i]);
-
-		now = DIV_ROUND_UP_ULL((u64)*parent_rate, psc->div[i]);
-
-		if (is_best(rate, now, best))
-			best = now;
-	}
-
-	if (!best)
-		best = DIV_ROUND_UP_ULL(*parent_rate, maxdiv);
-
-	return best;
-}
-
-static int ep93xx_div_set_rate(struct clk_hw *hw, unsigned long rate,
-			       unsigned long parent_rate)
-{
-	struct clk_psc *psc = to_clk_psc(hw);
-	u32 val = __raw_readl(psc->reg) & ~psc->mask;
-	int i;
-
-	for (i = 0; i < psc->num_div; i++)
-		if (rate == parent_rate / psc->div[i]) {
-			val |= i << psc->shift;
-			break;
-		}
-
-	if (i == psc->num_div)
-		return -EINVAL;
-
-	ep93xx_syscon_swlocked_write(val, psc->reg);
-
-	return 0;
-}
-
-static const struct clk_ops ep93xx_div_ops = {
-	.enable = ep93xx_clk_enable,
-	.disable = ep93xx_clk_disable,
-	.is_enabled = ep93xx_clk_is_enabled,
-	.recalc_rate = ep93xx_div_recalc_rate,
-	.round_rate = ep93xx_div_round_rate,
-	.set_rate = ep93xx_div_set_rate,
-};
-
-static struct clk_hw *clk_hw_register_div(const char *name,
-					  const char *parent_name,
-					  void __iomem *reg,
-					  u8 enable_bit,
-					  u8 shift,
-					  u8 width,
-					  char *clk_divisors,
-					  u8 num_div)
-{
-	struct clk_init_data init;
-	struct clk_psc *psc;
-	struct clk *clk;
-
-	psc = kzalloc(sizeof(*psc), GFP_KERNEL);
-	if (!psc)
-		return ERR_PTR(-ENOMEM);
-
-	init.name = name;
-	init.ops = &ep93xx_div_ops;
-	init.flags = 0;
-	init.parent_names = (parent_name ? &parent_name : NULL);
-	init.num_parents = 1;
-
-	psc->reg = reg;
-	psc->bit_idx = enable_bit;
-	psc->mask = GENMASK(shift + width - 1, shift);
-	psc->shift = shift;
-	psc->div = clk_divisors;
-	psc->num_div = num_div;
-	psc->lock = &clk_lock;
-	psc->hw.init = &init;
-
-	clk = clk_register(NULL, &psc->hw);
-	if (IS_ERR(clk)) {
-		kfree(psc);
-		return ERR_CAST(clk);
-	}
-	return &psc->hw;
-}
-
-struct ep93xx_gate {
-	unsigned int bit;
-	const char *dev_id;
-	const char *con_id;
-};
-
-static struct ep93xx_gate ep93xx_uarts[] = {
-	{EP93XX_SYSCON_DEVCFG_U1EN, "apb:uart1", NULL},
-	{EP93XX_SYSCON_DEVCFG_U2EN, "apb:uart2", NULL},
-	{EP93XX_SYSCON_DEVCFG_U3EN, "apb:uart3", NULL},
-};
-
-static void __init ep93xx_uart_clock_init(void)
-{
-	unsigned int i;
-	struct clk_hw *hw;
-	u32 value;
-	unsigned int clk_uart_div;
-
-	value = __raw_readl(EP93XX_SYSCON_PWRCNT);
-	if (value & EP93XX_SYSCON_PWRCNT_UARTBAUD)
-		clk_uart_div = 1;
-	else
-		clk_uart_div = 2;
-
-	hw = clk_hw_register_fixed_factor(NULL, "uart", "xtali", 0, 1, clk_uart_div);
-
-	/* parenting uart gate clocks to uart clock */
-	for (i = 0; i < ARRAY_SIZE(ep93xx_uarts); i++) {
-		hw = ep93xx_clk_register_gate(ep93xx_uarts[i].dev_id,
-					"uart",
-					EP93XX_SYSCON_DEVCFG,
-					ep93xx_uarts[i].bit);
-
-		clk_hw_register_clkdev(hw, NULL, ep93xx_uarts[i].dev_id);
-	}
-}
-
-static struct ep93xx_gate ep93xx_dmas[] = {
-	{EP93XX_SYSCON_PWRCNT_DMA_M2P0, NULL, "m2p0"},
-	{EP93XX_SYSCON_PWRCNT_DMA_M2P1, NULL, "m2p1"},
-	{EP93XX_SYSCON_PWRCNT_DMA_M2P2, NULL, "m2p2"},
-	{EP93XX_SYSCON_PWRCNT_DMA_M2P3, NULL, "m2p3"},
-	{EP93XX_SYSCON_PWRCNT_DMA_M2P4, NULL, "m2p4"},
-	{EP93XX_SYSCON_PWRCNT_DMA_M2P5, NULL, "m2p5"},
-	{EP93XX_SYSCON_PWRCNT_DMA_M2P6, NULL, "m2p6"},
-	{EP93XX_SYSCON_PWRCNT_DMA_M2P7, NULL, "m2p7"},
-	{EP93XX_SYSCON_PWRCNT_DMA_M2P8, NULL, "m2p8"},
-	{EP93XX_SYSCON_PWRCNT_DMA_M2P9, NULL, "m2p9"},
-	{EP93XX_SYSCON_PWRCNT_DMA_M2M0, NULL, "m2m0"},
-	{EP93XX_SYSCON_PWRCNT_DMA_M2M1, NULL, "m2m1"},
-};
-
-static void __init ep93xx_dma_clock_init(void)
-{
-	unsigned int i;
-	struct clk_hw *hw;
-	int ret;
-
-	for (i = 0; i < ARRAY_SIZE(ep93xx_dmas); i++) {
-		hw = clk_hw_register_gate(NULL, ep93xx_dmas[i].con_id,
-					"hclk", 0,
-					EP93XX_SYSCON_PWRCNT,
-					ep93xx_dmas[i].bit,
-					0,
-					&clk_lock);
-
-		ret = clk_hw_register_clkdev(hw, ep93xx_dmas[i].con_id, NULL);
-		if (ret)
-			pr_err("%s: failed to register lookup %s\n",
-			       __func__, ep93xx_dmas[i].con_id);
-	}
-}
-
-static int __init ep93xx_clock_init(void)
-{
-	u32 value;
-	struct clk_hw *hw;
-	unsigned long clk_pll1_rate;
-	unsigned long clk_f_rate;
-	unsigned long clk_h_rate;
-	unsigned long clk_p_rate;
-	unsigned long clk_pll2_rate;
-	unsigned int clk_f_div;
-	unsigned int clk_h_div;
-	unsigned int clk_p_div;
-	unsigned int clk_usb_div;
-	unsigned long clk_spi_div;
-
-	hw = clk_hw_register_fixed_rate(NULL, "xtali", NULL, 0, EP93XX_EXT_CLK_RATE);
-	clk_hw_register_clkdev(hw, NULL, "xtali");
-
-	/* Determine the bootloader configured pll1 rate */
-	value = __raw_readl(EP93XX_SYSCON_CLKSET1);
-	if (!(value & EP93XX_SYSCON_CLKSET1_NBYP1))
-		clk_pll1_rate = EP93XX_EXT_CLK_RATE;
-	else
-		clk_pll1_rate = calc_pll_rate(EP93XX_EXT_CLK_RATE, value);
-
-	hw = clk_hw_register_fixed_rate(NULL, "pll1", "xtali", 0, clk_pll1_rate);
-	clk_hw_register_clkdev(hw, NULL, "pll1");
-
-	/* Initialize the pll1 derived clocks */
-	clk_f_div = fclk_divisors[(value >> 25) & 0x7];
-	clk_h_div = hclk_divisors[(value >> 20) & 0x7];
-	clk_p_div = pclk_divisors[(value >> 18) & 0x3];
-
-	hw = clk_hw_register_fixed_factor(NULL, "fclk", "pll1", 0, 1, clk_f_div);
-	clk_f_rate = clk_get_rate(hw->clk);
-	hw = clk_hw_register_fixed_factor(NULL, "hclk", "pll1", 0, 1, clk_h_div);
-	clk_h_rate = clk_get_rate(hw->clk);
-	hw = clk_hw_register_fixed_factor(NULL, "pclk", "hclk", 0, 1, clk_p_div);
-	clk_p_rate = clk_get_rate(hw->clk);
-
-	clk_hw_register_clkdev(hw, "apb_pclk", NULL);
-
-	ep93xx_dma_clock_init();
-
-	/* Determine the bootloader configured pll2 rate */
-	value = __raw_readl(EP93XX_SYSCON_CLKSET2);
-	if (!(value & EP93XX_SYSCON_CLKSET2_NBYP2))
-		clk_pll2_rate = EP93XX_EXT_CLK_RATE;
-	else if (value & EP93XX_SYSCON_CLKSET2_PLL2_EN)
-		clk_pll2_rate = calc_pll_rate(EP93XX_EXT_CLK_RATE, value);
-	else
-		clk_pll2_rate = 0;
-
-	hw = clk_hw_register_fixed_rate(NULL, "pll2", "xtali", 0, clk_pll2_rate);
-	clk_hw_register_clkdev(hw, NULL, "pll2");
-
-	/* Initialize the pll2 derived clocks */
-	/*
-	 * These four bits set the divide ratio between the PLL2
-	 * output and the USB clock.
-	 * 0000 - Divide by 1
-	 * 0001 - Divide by 2
-	 * 0010 - Divide by 3
-	 * 0011 - Divide by 4
-	 * 0100 - Divide by 5
-	 * 0101 - Divide by 6
-	 * 0110 - Divide by 7
-	 * 0111 - Divide by 8
-	 * 1000 - Divide by 9
-	 * 1001 - Divide by 10
-	 * 1010 - Divide by 11
-	 * 1011 - Divide by 12
-	 * 1100 - Divide by 13
-	 * 1101 - Divide by 14
-	 * 1110 - Divide by 15
-	 * 1111 - Divide by 1
-	 * On power-on-reset these bits are reset to 0000b.
-	 */
-	clk_usb_div = (((value >> 28) & 0xf) + 1);
-	hw = clk_hw_register_fixed_factor(NULL, "usb_clk", "pll2", 0, 1, clk_usb_div);
-	hw = clk_hw_register_gate(NULL, "ohci-platform",
-				"usb_clk", 0,
-				EP93XX_SYSCON_PWRCNT,
-				EP93XX_SYSCON_PWRCNT_USH_EN,
-				0,
-				&clk_lock);
-	clk_hw_register_clkdev(hw, NULL, "ohci-platform");
-
-	/*
-	 * EP93xx SSP clock rate was doubled in version E2. For more information
-	 * see:
-	 *     http://www.cirrus.com/en/pubs/appNote/AN273REV4.pdf
-	 */
-	clk_spi_div = 1;
-	if (ep93xx_chip_revision() < EP93XX_CHIP_REV_E2)
-		clk_spi_div = 2;
-	hw = clk_hw_register_fixed_factor(NULL, "ep93xx-spi.0", "xtali", 0, 1, clk_spi_div);
-	clk_hw_register_clkdev(hw, NULL, "ep93xx-spi.0");
-
-	/* pwm clock */
-	hw = clk_hw_register_fixed_factor(NULL, "pwm_clk", "xtali", 0, 1, 1);
-	clk_hw_register_clkdev(hw, "pwm_clk", NULL);
-
-	pr_info("PLL1 running at %ld MHz, PLL2 at %ld MHz\n",
-		clk_pll1_rate / 1000000, clk_pll2_rate / 1000000);
-	pr_info("FCLK %ld MHz, HCLK %ld MHz, PCLK %ld MHz\n",
-		clk_f_rate / 1000000, clk_h_rate / 1000000,
-		clk_p_rate / 1000000);
-
-	ep93xx_uart_clock_init();
-
-	/* touchscreen/adc clock */
-	hw = clk_hw_register_div("ep93xx-adc",
-				"xtali",
-				EP93XX_SYSCON_KEYTCHCLKDIV,
-				EP93XX_SYSCON_KEYTCHCLKDIV_TSEN,
-				EP93XX_SYSCON_KEYTCHCLKDIV_ADIV,
-				1,
-				adc_divisors,
-				ARRAY_SIZE(adc_divisors));
-
-	clk_hw_register_clkdev(hw, NULL, "ep93xx-adc");
-
-	/* keypad clock */
-	hw = clk_hw_register_div("ep93xx-keypad",
-				"xtali",
-				EP93XX_SYSCON_KEYTCHCLKDIV,
-				EP93XX_SYSCON_KEYTCHCLKDIV_KEN,
-				EP93XX_SYSCON_KEYTCHCLKDIV_KDIV,
-				1,
-				adc_divisors,
-				ARRAY_SIZE(adc_divisors));
-
-	clk_hw_register_clkdev(hw, NULL, "ep93xx-keypad");
-
-	/* On reset PDIV and VDIV is set to zero, while PDIV zero
-	 * means clock disable, VDIV shouldn't be zero.
-	 * So i set both dividers to minimum.
-	 */
-	/* ENA - Enable CLK divider. */
-	/* PDIV - 00 - Disable clock */
-	/* VDIV - at least 2 */
-	/* Check and enable video clk registers */
-	value = __raw_readl(EP93XX_SYSCON_VIDCLKDIV);
-	value |= (1 << EP93XX_SYSCON_CLKDIV_PDIV_SHIFT) | 2;
-	ep93xx_syscon_swlocked_write(value, EP93XX_SYSCON_VIDCLKDIV);
-
-	/* check and enable i2s clk registers */
-	value = __raw_readl(EP93XX_SYSCON_I2SCLKDIV);
-	value |= (1 << EP93XX_SYSCON_CLKDIV_PDIV_SHIFT) | 2;
-	ep93xx_syscon_swlocked_write(value, EP93XX_SYSCON_I2SCLKDIV);
-
-	/* video clk */
-	hw = clk_hw_register_ddiv("ep93xx-fb",
-				EP93XX_SYSCON_VIDCLKDIV,
-				EP93XX_SYSCON_CLKDIV_ENABLE);
-
-	clk_hw_register_clkdev(hw, NULL, "ep93xx-fb");
-
-	/* i2s clk */
-	hw = clk_hw_register_ddiv("mclk",
-				EP93XX_SYSCON_I2SCLKDIV,
-				EP93XX_SYSCON_CLKDIV_ENABLE);
-
-	clk_hw_register_clkdev(hw, "mclk", "ep93xx-i2s");
-
-	/* i2s sclk */
-#define EP93XX_I2SCLKDIV_SDIV_SHIFT	16
-#define EP93XX_I2SCLKDIV_SDIV_WIDTH	1
-	hw = clk_hw_register_div("sclk",
-				"mclk",
-				EP93XX_SYSCON_I2SCLKDIV,
-				EP93XX_SYSCON_I2SCLKDIV_SENA,
-				EP93XX_I2SCLKDIV_SDIV_SHIFT,
-				EP93XX_I2SCLKDIV_SDIV_WIDTH,
-				sclk_divisors,
-				ARRAY_SIZE(sclk_divisors));
-
-	clk_hw_register_clkdev(hw, "sclk", "ep93xx-i2s");
-
-	/* i2s lrclk */
-#define EP93XX_I2SCLKDIV_LRDIV32_SHIFT	17
-#define EP93XX_I2SCLKDIV_LRDIV32_WIDTH	3
-	hw = clk_hw_register_div("lrclk",
-				"sclk",
-				EP93XX_SYSCON_I2SCLKDIV,
-				EP93XX_SYSCON_I2SCLKDIV_SENA,
-				EP93XX_I2SCLKDIV_LRDIV32_SHIFT,
-				EP93XX_I2SCLKDIV_LRDIV32_WIDTH,
-				lrclk_divisors,
-				ARRAY_SIZE(lrclk_divisors));
-
-	clk_hw_register_clkdev(hw, "lrclk", "ep93xx-i2s");
-
-	return 0;
-}
-postcore_initcall(ep93xx_clock_init);

arch/arm/mach-ep93xx/dma.c

@@ -1,114 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * arch/arm/mach-ep93xx/dma.c
- *
- * Platform support code for the EP93xx dmaengine driver.
- *
- * Copyright (C) 2011 Mika Westerberg
- *
- * This work is based on the original dma-m2p implementation with
- * following copyrights:
- *
- *   Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
- *   Copyright (C) 2006 Applied Data Systems
- *   Copyright (C) 2009 Ryan Mallon <rmallon@gmail.com>
- */
-
-#include <linux/dmaengine.h>
-#include <linux/dma-mapping.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/platform_device.h>
-
-#include <linux/platform_data/dma-ep93xx.h>
-#include "hardware.h"
-
-#include "soc.h"
-
-#define DMA_CHANNEL(_name, _base, _irq) \
-	{ .name = (_name), .base = (_base), .irq = (_irq) }
-
-/*
- * DMA M2P channels.
- *
- * On the EP93xx chip the following peripherals my be allocated to the 10
- * Memory to Internal Peripheral (M2P) channels (5 transmit + 5 receive).
- *
- *	I2S	contains 3 Tx and 3 Rx DMA Channels
- *	AAC	contains 3 Tx and 3 Rx DMA Channels
- *	UART1	contains 1 Tx and 1 Rx DMA Channels
- *	UART2	contains 1 Tx and 1 Rx DMA Channels
- *	UART3	contains 1 Tx and 1 Rx DMA Channels
- *	IrDA	contains 1 Tx and 1 Rx DMA Channels
- *
- * Registers are mapped statically in ep93xx_map_io().
- */
-static struct ep93xx_dma_chan_data ep93xx_dma_m2p_channels[] = {
-	DMA_CHANNEL("m2p0", EP93XX_DMA_BASE + 0x0000, IRQ_EP93XX_DMAM2P0),
-	DMA_CHANNEL("m2p1", EP93XX_DMA_BASE + 0x0040, IRQ_EP93XX_DMAM2P1),
-	DMA_CHANNEL("m2p2", EP93XX_DMA_BASE + 0x0080, IRQ_EP93XX_DMAM2P2),
-	DMA_CHANNEL("m2p3", EP93XX_DMA_BASE + 0x00c0, IRQ_EP93XX_DMAM2P3),
-	DMA_CHANNEL("m2p4", EP93XX_DMA_BASE + 0x0240, IRQ_EP93XX_DMAM2P4),
-	DMA_CHANNEL("m2p5", EP93XX_DMA_BASE + 0x0200, IRQ_EP93XX_DMAM2P5),
-	DMA_CHANNEL("m2p6", EP93XX_DMA_BASE + 0x02c0, IRQ_EP93XX_DMAM2P6),
-	DMA_CHANNEL("m2p7", EP93XX_DMA_BASE + 0x0280, IRQ_EP93XX_DMAM2P7),
-	DMA_CHANNEL("m2p8", EP93XX_DMA_BASE + 0x0340, IRQ_EP93XX_DMAM2P8),
-	DMA_CHANNEL("m2p9", EP93XX_DMA_BASE + 0x0300, IRQ_EP93XX_DMAM2P9),
-};
-
-static struct ep93xx_dma_platform_data ep93xx_dma_m2p_data = {
-	.channels		= ep93xx_dma_m2p_channels,
-	.num_channels		= ARRAY_SIZE(ep93xx_dma_m2p_channels),
-};
-
-static u64 ep93xx_dma_m2p_mask = DMA_BIT_MASK(32);
-
-static struct platform_device ep93xx_dma_m2p_device = {
-	.name			= "ep93xx-dma-m2p",
-	.id			= -1,
-	.dev			= {
-		.platform_data		= &ep93xx_dma_m2p_data,
-		.dma_mask		= &ep93xx_dma_m2p_mask,
-		.coherent_dma_mask	= DMA_BIT_MASK(32),
-	},
-};
-
-/*
- * DMA M2M channels.
- *
- * There are 2 M2M channels which support memcpy/memset and in addition simple
- * hardware requests from/to SSP and IDE. We do not implement an external
- * hardware requests.
- *
- * Registers are mapped statically in ep93xx_map_io().
- */
-static struct ep93xx_dma_chan_data ep93xx_dma_m2m_channels[] = {
-	DMA_CHANNEL("m2m0", EP93XX_DMA_BASE + 0x0100, IRQ_EP93XX_DMAM2M0),
-	DMA_CHANNEL("m2m1", EP93XX_DMA_BASE + 0x0140, IRQ_EP93XX_DMAM2M1),
-};
-
-static struct ep93xx_dma_platform_data ep93xx_dma_m2m_data = {
-	.channels		= ep93xx_dma_m2m_channels,
-	.num_channels		= ARRAY_SIZE(ep93xx_dma_m2m_channels),
-};
-
-static u64 ep93xx_dma_m2m_mask = DMA_BIT_MASK(32);
-
-static struct platform_device ep93xx_dma_m2m_device = {
-	.name			= "ep93xx-dma-m2m",
-	.id			= -1,
-	.dev			= {
-		.platform_data		= &ep93xx_dma_m2m_data,
-		.dma_mask		= &ep93xx_dma_m2m_mask,
-		.coherent_dma_mask	= DMA_BIT_MASK(32),
-	},
-};
-
-static int __init ep93xx_dma_init(void)
-{
-	platform_device_register(&ep93xx_dma_m2p_device);
-	platform_device_register(&ep93xx_dma_m2m_device);
-	return 0;
-}
-arch_initcall(ep93xx_dma_init);

arch/arm/mach-ep93xx/edb93xx.c

@@ -1,368 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * arch/arm/mach-ep93xx/edb93xx.c
- * Cirrus Logic EDB93xx Development Board support.
- *
- * EDB93XX, EDB9301, EDB9307A
- * Copyright (C) 2008-2009 H Hartley Sweeten <hsweeten@visionengravers.com>
- *
- * EDB9302
- * Copyright (C) 2006 George Kashperko <george@chas.com.ua>
- *
- * EDB9302A, EDB9315, EDB9315A
- * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
- *
- * EDB9307
- * Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org>
- *
- * EDB9312
- * Copyright (C) 2006 Infosys Technologies Limited
- *                    Toufeeq Hussain <toufeeq_hussain@infosys.com>
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/i2c.h>
-#include <linux/spi/spi.h>
-#include <linux/gpio/machine.h>
-
-#include <sound/cs4271.h>
-
-#include "hardware.h"
-#include <linux/platform_data/video-ep93xx.h>
-#include <linux/platform_data/spi-ep93xx.h>
-#include "gpio-ep93xx.h"
-
-#include <asm/mach-types.h>
-#include <asm/mach/arch.h>
-
-#include "soc.h"
-
-static void __init edb93xx_register_flash(void)
-{
-	if (machine_is_edb9307() || machine_is_edb9312() ||
-	    machine_is_edb9315()) {
-		ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M);
-	} else {
-		ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M);
-	}
-}
-
-static struct ep93xx_eth_data __initdata edb93xx_eth_data = {
-	.phy_id		= 1,
-};
-
-
-/*************************************************************************
- * EDB93xx i2c peripheral handling
- *************************************************************************/
-
-static struct i2c_board_info __initdata edb93xxa_i2c_board_info[] = {
-	{
-		I2C_BOARD_INFO("isl1208", 0x6f),
-	},
-};
-
-static struct i2c_board_info __initdata edb93xx_i2c_board_info[] = {
-	{
-		I2C_BOARD_INFO("ds1337", 0x68),
-	},
-};
-
-static void __init edb93xx_register_i2c(void)
-{
-	if (machine_is_edb9302a() || machine_is_edb9307a() ||
-	    machine_is_edb9315a()) {
-		ep93xx_register_i2c(edb93xxa_i2c_board_info,
-				    ARRAY_SIZE(edb93xxa_i2c_board_info));
-	} else if (machine_is_edb9302() || machine_is_edb9307()
-		|| machine_is_edb9312() || machine_is_edb9315()) {
-		ep93xx_register_i2c(edb93xx_i2c_board_info,
-				    ARRAY_SIZE(edb93xx_i2c_board_info));
-	}
-}
-
-
-/*************************************************************************
- * EDB93xx SPI peripheral handling
- *************************************************************************/
-static struct cs4271_platform_data edb93xx_cs4271_data = {
-	/* Intentionally left blank */
-};
-
-static struct spi_board_info edb93xx_spi_board_info[] __initdata = {
-	{
-		.modalias		= "cs4271",
-		.platform_data		= &edb93xx_cs4271_data,
-		.max_speed_hz		= 6000000,
-		.bus_num		= 0,
-		.chip_select		= 0,
-		.mode			= SPI_MODE_3,
-	},
-};
-
-static struct gpiod_lookup_table edb93xx_spi_cs_gpio_table = {
-	.dev_id = "spi0",
-	.table = {
-		GPIO_LOOKUP("A", 6, "cs", GPIO_ACTIVE_LOW),
-		{ },
-	},
-};
-
-static struct ep93xx_spi_info edb93xx_spi_info __initdata = {
-	/* Intentionally left blank */
-};
-
-static struct gpiod_lookup_table edb93xx_cs4272_edb9301_gpio_table = {
-	.dev_id = "spi0.0", /* CS0 on SPI0 */
-	.table = {
-		GPIO_LOOKUP("A", 1, "reset", GPIO_ACTIVE_LOW),
-		{ },
-	},
-};
-
-static struct gpiod_lookup_table edb93xx_cs4272_edb9302_gpio_table = {
-	.dev_id = "spi0.0", /* CS0 on SPI0 */
-	.table = {
-		GPIO_LOOKUP("H", 2, "reset", GPIO_ACTIVE_LOW),
-		{ },
-	},
-};
-
-static struct gpiod_lookup_table edb93xx_cs4272_edb9315_gpio_table = {
-	.dev_id = "spi0.0", /* CS0 on SPI0 */
-	.table = {
-		GPIO_LOOKUP("B", 6, "reset", GPIO_ACTIVE_LOW),
-		{ },
-	},
-};
-
-static void __init edb93xx_register_spi(void)
-{
-	if (machine_is_edb9301() || machine_is_edb9302())
-		gpiod_add_lookup_table(&edb93xx_cs4272_edb9301_gpio_table);
-	else if (machine_is_edb9302a() || machine_is_edb9307a())
-		gpiod_add_lookup_table(&edb93xx_cs4272_edb9302_gpio_table);
-	else if (machine_is_edb9315a())
-		gpiod_add_lookup_table(&edb93xx_cs4272_edb9315_gpio_table);
-
-	gpiod_add_lookup_table(&edb93xx_spi_cs_gpio_table);
-	ep93xx_register_spi(&edb93xx_spi_info, edb93xx_spi_board_info,
-			    ARRAY_SIZE(edb93xx_spi_board_info));
-}
-
-
-/*************************************************************************
- * EDB93xx I2S
- *************************************************************************/
-static struct platform_device edb93xx_audio_device = {
-	.name		= "edb93xx-audio",
-	.id		= -1,
-};
-
-static int __init edb93xx_has_audio(void)
-{
-	return (machine_is_edb9301() || machine_is_edb9302() ||
-		machine_is_edb9302a() || machine_is_edb9307a() ||
-		machine_is_edb9315a());
-}
-
-static void __init edb93xx_register_i2s(void)
-{
-	if (edb93xx_has_audio()) {
-		ep93xx_register_i2s();
-		platform_device_register(&edb93xx_audio_device);
-	}
-}
-
-
-/*************************************************************************
- * EDB93xx pwm
- *************************************************************************/
-static void __init edb93xx_register_pwm(void)
-{
-	if (machine_is_edb9301() ||
-	    machine_is_edb9302() || machine_is_edb9302a()) {
-		/* EP9301 and EP9302 only have pwm.1 (EGPIO14) */
-		ep93xx_register_pwm(0, 1);
-	} else if (machine_is_edb9307() || machine_is_edb9307a()) {
-		/* EP9307 only has pwm.0 (PWMOUT) */
-		ep93xx_register_pwm(1, 0);
-	} else {
-		/* EP9312 and EP9315 have both */
-		ep93xx_register_pwm(1, 1);
-	}
-}
-
-
-/*************************************************************************
- * EDB93xx framebuffer
- *************************************************************************/
-static struct ep93xxfb_mach_info __initdata edb93xxfb_info = {
-	.flags		= 0,
-};
-
-static int __init edb93xx_has_fb(void)
-{
-	/* These platforms have an ep93xx with video capability */
-	return machine_is_edb9307() || machine_is_edb9307a() ||
-	       machine_is_edb9312() || machine_is_edb9315() ||
-	       machine_is_edb9315a();
-}
-
-static void __init edb93xx_register_fb(void)
-{
-	if (!edb93xx_has_fb())
-		return;
-
-	if (machine_is_edb9307a() || machine_is_edb9315a())
-		edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN0;
-	else
-		edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN3;
-
-	ep93xx_register_fb(&edb93xxfb_info);
-}
-
-
-/*************************************************************************
- * EDB93xx IDE
- *************************************************************************/
-static int __init edb93xx_has_ide(void)
-{
-	/*
-	 * Although EDB9312 and EDB9315 do have IDE capability, they have
-	 * INTRQ line wired as pull-up, which makes using IDE interface
-	 * problematic.
-	 */
-	return machine_is_edb9312() || machine_is_edb9315() ||
-	       machine_is_edb9315a();
-}
-
-static void __init edb93xx_register_ide(void)
-{
-	if (!edb93xx_has_ide())
-		return;
-
-	ep93xx_register_ide();
-}
-
-
-static void __init edb93xx_init_machine(void)
-{
-	ep93xx_init_devices();
-	edb93xx_register_flash();
-	ep93xx_register_eth(&edb93xx_eth_data, 1);
-	edb93xx_register_i2c();
-	edb93xx_register_spi();
-	edb93xx_register_i2s();
-	edb93xx_register_pwm();
-	edb93xx_register_fb();
-	edb93xx_register_ide();
-	ep93xx_register_adc();
-}
-
-
-#ifdef CONFIG_MACH_EDB9301
-MACHINE_START(EDB9301, "Cirrus Logic EDB9301 Evaluation Board")
-	/* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
-	.atag_offset	= 0x100,
-	.nr_irqs	= NR_EP93XX_IRQS,
-	.map_io		= ep93xx_map_io,
-	.init_irq	= ep93xx_init_irq,
-	.init_time	= ep93xx_timer_init,
-	.init_machine	= edb93xx_init_machine,
-	.restart	= ep93xx_restart,
-MACHINE_END
-#endif
-
-#ifdef CONFIG_MACH_EDB9302
-MACHINE_START(EDB9302, "Cirrus Logic EDB9302 Evaluation Board")
-	/* Maintainer: George Kashperko <george@chas.com.ua> */
-	.atag_offset	= 0x100,
-	.nr_irqs	= NR_EP93XX_IRQS,
-	.map_io		= ep93xx_map_io,
-	.init_irq	= ep93xx_init_irq,
-	.init_time	= ep93xx_timer_init,
-	.init_machine	= edb93xx_init_machine,
-	.restart	= ep93xx_restart,
-MACHINE_END
-#endif
-
-#ifdef CONFIG_MACH_EDB9302A
-MACHINE_START(EDB9302A, "Cirrus Logic EDB9302A Evaluation Board")
-	/* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
-	.atag_offset	= 0x100,
-	.nr_irqs	= NR_EP93XX_IRQS,
-	.map_io		= ep93xx_map_io,
-	.init_irq	= ep93xx_init_irq,
-	.init_time	= ep93xx_timer_init,
-	.init_machine	= edb93xx_init_machine,
-	.restart	= ep93xx_restart,
-MACHINE_END
-#endif
-
-#ifdef CONFIG_MACH_EDB9307
-MACHINE_START(EDB9307, "Cirrus Logic EDB9307 Evaluation Board")
-	/* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
-	.atag_offset	= 0x100,
-	.nr_irqs	= NR_EP93XX_IRQS,
-	.map_io		= ep93xx_map_io,
-	.init_irq	= ep93xx_init_irq,
-	.init_time	= ep93xx_timer_init,
-	.init_machine	= edb93xx_init_machine,
-	.restart	= ep93xx_restart,
-MACHINE_END
-#endif
-
-#ifdef CONFIG_MACH_EDB9307A
-MACHINE_START(EDB9307A, "Cirrus Logic EDB9307A Evaluation Board")
-	/* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
-	.atag_offset	= 0x100,
-	.nr_irqs	= NR_EP93XX_IRQS,
-	.map_io		= ep93xx_map_io,
-	.init_irq	= ep93xx_init_irq,
-	.init_time	= ep93xx_timer_init,
-	.init_machine	= edb93xx_init_machine,
-	.restart	= ep93xx_restart,
-MACHINE_END
-#endif
-
-#ifdef CONFIG_MACH_EDB9312
-MACHINE_START(EDB9312, "Cirrus Logic EDB9312 Evaluation Board")
-	/* Maintainer: Toufeeq Hussain <toufeeq_hussain@infosys.com> */
-	.atag_offset	= 0x100,
-	.nr_irqs	= NR_EP93XX_IRQS,
-	.map_io		= ep93xx_map_io,
-	.init_irq	= ep93xx_init_irq,
-	.init_time	= ep93xx_timer_init,
-	.init_machine	= edb93xx_init_machine,
-	.restart	= ep93xx_restart,
-MACHINE_END
-#endif
-
-#ifdef CONFIG_MACH_EDB9315
-MACHINE_START(EDB9315, "Cirrus Logic EDB9315 Evaluation Board")
-	/* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
-	.atag_offset	= 0x100,
-	.nr_irqs	= NR_EP93XX_IRQS,
-	.map_io		= ep93xx_map_io,
-	.init_irq	= ep93xx_init_irq,
-	.init_time	= ep93xx_timer_init,
-	.init_machine	= edb93xx_init_machine,
-	.restart	= ep93xx_restart,
-MACHINE_END
-#endif
-
-#ifdef CONFIG_MACH_EDB9315A
-MACHINE_START(EDB9315A, "Cirrus Logic EDB9315A Evaluation Board")
-	/* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
-	.atag_offset	= 0x100,
-	.nr_irqs	= NR_EP93XX_IRQS,
-	.map_io		= ep93xx_map_io,
-	.init_irq	= ep93xx_init_irq,
-	.init_time	= ep93xx_timer_init,
-	.init_machine	= edb93xx_init_machine,
-	.restart	= ep93xx_restart,
-MACHINE_END
-#endif

arch/arm/mach-ep93xx/ep93xx-regs.h

@@ -1,38 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __ASM_ARCH_EP93XX_REGS_H
-#define __ASM_ARCH_EP93XX_REGS_H
-
-/*
- * EP93xx linux memory map:
- *
- * virt		phys		size
- * fe800000			5M		per-platform mappings
- * fed00000	80800000	2M		APB
- * fef00000	80000000	1M		AHB
- */
-
-#define EP93XX_AHB_PHYS_BASE		0x80000000
-#define EP93XX_AHB_VIRT_BASE		0xfef00000
-#define EP93XX_AHB_SIZE			0x00100000
-
-#define EP93XX_AHB_PHYS(x)		(EP93XX_AHB_PHYS_BASE + (x))
-#define EP93XX_AHB_IOMEM(x)		IOMEM(EP93XX_AHB_VIRT_BASE + (x))
-
-#define EP93XX_APB_PHYS_BASE		0x80800000
-#define EP93XX_APB_VIRT_BASE		0xfed00000
-#define EP93XX_APB_SIZE			0x00200000
-
-#define EP93XX_APB_PHYS(x)		(EP93XX_APB_PHYS_BASE + (x))
-#define EP93XX_APB_IOMEM(x)		IOMEM(EP93XX_APB_VIRT_BASE + (x))
-
-/* APB UARTs */
-#define EP93XX_UART1_PHYS_BASE		EP93XX_APB_PHYS(0x000c0000)
-#define EP93XX_UART1_BASE		EP93XX_APB_IOMEM(0x000c0000)
-
-#define EP93XX_UART2_PHYS_BASE		EP93XX_APB_PHYS(0x000d0000)
-#define EP93XX_UART2_BASE		EP93XX_APB_IOMEM(0x000d0000)
-
-#define EP93XX_UART3_PHYS_BASE		EP93XX_APB_PHYS(0x000e0000)
-#define EP93XX_UART3_BASE		EP93XX_APB_IOMEM(0x000e0000)
-
-#endif

arch/arm/mach-ep93xx/gpio-ep93xx.h

@@ -1,111 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/* Include file for the EP93XX GPIO controller machine specifics */
-
-#ifndef __GPIO_EP93XX_H
-#define __GPIO_EP93XX_H
-
-#include "ep93xx-regs.h"
-
-#define EP93XX_GPIO_PHYS_BASE		EP93XX_APB_PHYS(0x00040000)
-#define EP93XX_GPIO_BASE		EP93XX_APB_IOMEM(0x00040000)
-#define EP93XX_GPIO_REG(x)		(EP93XX_GPIO_BASE + (x))
-#define EP93XX_GPIO_F_INT_STATUS	EP93XX_GPIO_REG(0x5c)
-#define EP93XX_GPIO_A_INT_STATUS	EP93XX_GPIO_REG(0xa0)
-#define EP93XX_GPIO_B_INT_STATUS	EP93XX_GPIO_REG(0xbc)
-#define EP93XX_GPIO_EEDRIVE		EP93XX_GPIO_REG(0xc8)
-
-/* GPIO port A.  */
-#define EP93XX_GPIO_LINE_A(x)		((x) + 0)
-#define EP93XX_GPIO_LINE_EGPIO0		EP93XX_GPIO_LINE_A(0)
-#define EP93XX_GPIO_LINE_EGPIO1		EP93XX_GPIO_LINE_A(1)
-#define EP93XX_GPIO_LINE_EGPIO2		EP93XX_GPIO_LINE_A(2)
-#define EP93XX_GPIO_LINE_EGPIO3		EP93XX_GPIO_LINE_A(3)
-#define EP93XX_GPIO_LINE_EGPIO4		EP93XX_GPIO_LINE_A(4)
-#define EP93XX_GPIO_LINE_EGPIO5		EP93XX_GPIO_LINE_A(5)
-#define EP93XX_GPIO_LINE_EGPIO6		EP93XX_GPIO_LINE_A(6)
-#define EP93XX_GPIO_LINE_EGPIO7		EP93XX_GPIO_LINE_A(7)
-
-/* GPIO port B.  */
-#define EP93XX_GPIO_LINE_B(x)		((x) + 8)
-#define EP93XX_GPIO_LINE_EGPIO8		EP93XX_GPIO_LINE_B(0)
-#define EP93XX_GPIO_LINE_EGPIO9		EP93XX_GPIO_LINE_B(1)
-#define EP93XX_GPIO_LINE_EGPIO10	EP93XX_GPIO_LINE_B(2)
-#define EP93XX_GPIO_LINE_EGPIO11	EP93XX_GPIO_LINE_B(3)
-#define EP93XX_GPIO_LINE_EGPIO12	EP93XX_GPIO_LINE_B(4)
-#define EP93XX_GPIO_LINE_EGPIO13	EP93XX_GPIO_LINE_B(5)
-#define EP93XX_GPIO_LINE_EGPIO14	EP93XX_GPIO_LINE_B(6)
-#define EP93XX_GPIO_LINE_EGPIO15	EP93XX_GPIO_LINE_B(7)
-
-/* GPIO port C.  */
-#define EP93XX_GPIO_LINE_C(x)		((x) + 40)
-#define EP93XX_GPIO_LINE_ROW0		EP93XX_GPIO_LINE_C(0)
-#define EP93XX_GPIO_LINE_ROW1		EP93XX_GPIO_LINE_C(1)
-#define EP93XX_GPIO_LINE_ROW2		EP93XX_GPIO_LINE_C(2)
-#define EP93XX_GPIO_LINE_ROW3		EP93XX_GPIO_LINE_C(3)
-#define EP93XX_GPIO_LINE_ROW4		EP93XX_GPIO_LINE_C(4)
-#define EP93XX_GPIO_LINE_ROW5		EP93XX_GPIO_LINE_C(5)
-#define EP93XX_GPIO_LINE_ROW6		EP93XX_GPIO_LINE_C(6)
-#define EP93XX_GPIO_LINE_ROW7		EP93XX_GPIO_LINE_C(7)
-
-/* GPIO port D.  */
-#define EP93XX_GPIO_LINE_D(x)		((x) + 24)
-#define EP93XX_GPIO_LINE_COL0		EP93XX_GPIO_LINE_D(0)
-#define EP93XX_GPIO_LINE_COL1		EP93XX_GPIO_LINE_D(1)
-#define EP93XX_GPIO_LINE_COL2		EP93XX_GPIO_LINE_D(2)
-#define EP93XX_GPIO_LINE_COL3		EP93XX_GPIO_LINE_D(3)
-#define EP93XX_GPIO_LINE_COL4		EP93XX_GPIO_LINE_D(4)
-#define EP93XX_GPIO_LINE_COL5		EP93XX_GPIO_LINE_D(5)
-#define EP93XX_GPIO_LINE_COL6		EP93XX_GPIO_LINE_D(6)
-#define EP93XX_GPIO_LINE_COL7		EP93XX_GPIO_LINE_D(7)
-
-/* GPIO port E.  */
-#define EP93XX_GPIO_LINE_E(x)		((x) + 32)
-#define EP93XX_GPIO_LINE_GRLED		EP93XX_GPIO_LINE_E(0)
-#define EP93XX_GPIO_LINE_RDLED		EP93XX_GPIO_LINE_E(1)
-#define EP93XX_GPIO_LINE_DIORn		EP93XX_GPIO_LINE_E(2)
-#define EP93XX_GPIO_LINE_IDECS1n	EP93XX_GPIO_LINE_E(3)
-#define EP93XX_GPIO_LINE_IDECS2n	EP93XX_GPIO_LINE_E(4)
-#define EP93XX_GPIO_LINE_IDEDA0		EP93XX_GPIO_LINE_E(5)
-#define EP93XX_GPIO_LINE_IDEDA1		EP93XX_GPIO_LINE_E(6)
-#define EP93XX_GPIO_LINE_IDEDA2		EP93XX_GPIO_LINE_E(7)
-
-/* GPIO port F.  */
-#define EP93XX_GPIO_LINE_F(x)		((x) + 16)
-#define EP93XX_GPIO_LINE_WP		EP93XX_GPIO_LINE_F(0)
-#define EP93XX_GPIO_LINE_MCCD1		EP93XX_GPIO_LINE_F(1)
-#define EP93XX_GPIO_LINE_MCCD2		EP93XX_GPIO_LINE_F(2)
-#define EP93XX_GPIO_LINE_MCBVD1		EP93XX_GPIO_LINE_F(3)
-#define EP93XX_GPIO_LINE_MCBVD2		EP93XX_GPIO_LINE_F(4)
-#define EP93XX_GPIO_LINE_VS1		EP93XX_GPIO_LINE_F(5)
-#define EP93XX_GPIO_LINE_READY		EP93XX_GPIO_LINE_F(6)
-#define EP93XX_GPIO_LINE_VS2		EP93XX_GPIO_LINE_F(7)
-
-/* GPIO port G.  */
-#define EP93XX_GPIO_LINE_G(x)		((x) + 48)
-#define EP93XX_GPIO_LINE_EECLK		EP93XX_GPIO_LINE_G(0)
-#define EP93XX_GPIO_LINE_EEDAT		EP93XX_GPIO_LINE_G(1)
-#define EP93XX_GPIO_LINE_SLA0		EP93XX_GPIO_LINE_G(2)
-#define EP93XX_GPIO_LINE_SLA1		EP93XX_GPIO_LINE_G(3)
-#define EP93XX_GPIO_LINE_DD12		EP93XX_GPIO_LINE_G(4)
-#define EP93XX_GPIO_LINE_DD13		EP93XX_GPIO_LINE_G(5)
-#define EP93XX_GPIO_LINE_DD14		EP93XX_GPIO_LINE_G(6)
-#define EP93XX_GPIO_LINE_DD15		EP93XX_GPIO_LINE_G(7)
-
-/* GPIO port H.  */
-#define EP93XX_GPIO_LINE_H(x)		((x) + 56)
-#define EP93XX_GPIO_LINE_DD0		EP93XX_GPIO_LINE_H(0)
-#define EP93XX_GPIO_LINE_DD1		EP93XX_GPIO_LINE_H(1)
-#define EP93XX_GPIO_LINE_DD2		EP93XX_GPIO_LINE_H(2)
-#define EP93XX_GPIO_LINE_DD3		EP93XX_GPIO_LINE_H(3)
-#define EP93XX_GPIO_LINE_DD4		EP93XX_GPIO_LINE_H(4)
-#define EP93XX_GPIO_LINE_DD5		EP93XX_GPIO_LINE_H(5)
-#define EP93XX_GPIO_LINE_DD6		EP93XX_GPIO_LINE_H(6)
-#define EP93XX_GPIO_LINE_DD7		EP93XX_GPIO_LINE_H(7)
-
-/* maximum value for gpio line identifiers */
-#define EP93XX_GPIO_LINE_MAX		EP93XX_GPIO_LINE_H(7)
-
-/* maximum value for irq capable line identifiers */
-#define EP93XX_GPIO_LINE_MAX_IRQ	EP93XX_GPIO_LINE_F(7)
-
-#endif /* __GPIO_EP93XX_H */

arch/arm/mach-ep93xx/hardware.h

@@ -1,25 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * arch/arm/mach-ep93xx/include/mach/hardware.h
- */
-
-#ifndef __ASM_ARCH_HARDWARE_H
-#define __ASM_ARCH_HARDWARE_H
-
-#include "platform.h"
-
-/*
- * The EP93xx has two external crystal oscillators.  To generate the
- * required high-frequency clocks, the processor uses two phase-locked-
- * loops (PLLs) to multiply the incoming external clock signal to much
- * higher frequencies that are then divided down by programmable dividers
- * to produce the needed clocks.  The PLLs operate independently of one
- * another.
- */
-#define EP93XX_EXT_CLK_RATE	14745600
-#define EP93XX_EXT_RTC_RATE	32768
-
-#define EP93XX_KEYTCHCLK_DIV4	(EP93XX_EXT_CLK_RATE / 4)
-#define EP93XX_KEYTCHCLK_DIV16	(EP93XX_EXT_CLK_RATE / 16)
-
-#endif

arch/arm/mach-ep93xx/irqs.h

@@ -1,76 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __ASM_ARCH_IRQS_H
-#define __ASM_ARCH_IRQS_H
-
-#define IRQ_EP93XX_VIC0			1
-
-#define IRQ_EP93XX_COMMRX		(IRQ_EP93XX_VIC0 + 2)
-#define IRQ_EP93XX_COMMTX		(IRQ_EP93XX_VIC0 + 3)
-#define IRQ_EP93XX_TIMER1		(IRQ_EP93XX_VIC0 + 4)
-#define IRQ_EP93XX_TIMER2		(IRQ_EP93XX_VIC0 + 5)
-#define IRQ_EP93XX_AACINTR		(IRQ_EP93XX_VIC0 + 6)
-#define IRQ_EP93XX_DMAM2P0		(IRQ_EP93XX_VIC0 + 7)
-#define IRQ_EP93XX_DMAM2P1		(IRQ_EP93XX_VIC0 + 8)
-#define IRQ_EP93XX_DMAM2P2		(IRQ_EP93XX_VIC0 + 9)
-#define IRQ_EP93XX_DMAM2P3		(IRQ_EP93XX_VIC0 + 10)
-#define IRQ_EP93XX_DMAM2P4		(IRQ_EP93XX_VIC0 + 11)
-#define IRQ_EP93XX_DMAM2P5		(IRQ_EP93XX_VIC0 + 12)
-#define IRQ_EP93XX_DMAM2P6		(IRQ_EP93XX_VIC0 + 13)
-#define IRQ_EP93XX_DMAM2P7		(IRQ_EP93XX_VIC0 + 14)
-#define IRQ_EP93XX_DMAM2P8		(IRQ_EP93XX_VIC0 + 15)
-#define IRQ_EP93XX_DMAM2P9		(IRQ_EP93XX_VIC0 + 16)
-#define IRQ_EP93XX_DMAM2M0		(IRQ_EP93XX_VIC0 + 17)
-#define IRQ_EP93XX_DMAM2M1		(IRQ_EP93XX_VIC0 + 18)
-#define IRQ_EP93XX_GPIO0MUX		(IRQ_EP93XX_VIC0 + 19)
-#define IRQ_EP93XX_GPIO1MUX		(IRQ_EP93XX_VIC0 + 20)
-#define IRQ_EP93XX_GPIO2MUX		(IRQ_EP93XX_VIC0 + 21)
-#define IRQ_EP93XX_GPIO3MUX		(IRQ_EP93XX_VIC0 + 22)
-#define IRQ_EP93XX_UART1RX		(IRQ_EP93XX_VIC0 + 23)
-#define IRQ_EP93XX_UART1TX		(IRQ_EP93XX_VIC0 + 24)
-#define IRQ_EP93XX_UART2RX		(IRQ_EP93XX_VIC0 + 25)
-#define IRQ_EP93XX_UART2TX		(IRQ_EP93XX_VIC0 + 26)
-#define IRQ_EP93XX_UART3RX		(IRQ_EP93XX_VIC0 + 27)
-#define IRQ_EP93XX_UART3TX		(IRQ_EP93XX_VIC0 + 28)
-#define IRQ_EP93XX_KEY			(IRQ_EP93XX_VIC0 + 29)
-#define IRQ_EP93XX_TOUCH		(IRQ_EP93XX_VIC0 + 30)
-#define EP93XX_VIC1_VALID_IRQ_MASK	0x7ffffffc
-
-#define IRQ_EP93XX_VIC1			(IRQ_EP93XX_VIC0 + 32)
-
-#define IRQ_EP93XX_EXT0			(IRQ_EP93XX_VIC1 + 0)
-#define IRQ_EP93XX_EXT1			(IRQ_EP93XX_VIC1 + 1)
-#define IRQ_EP93XX_EXT2			(IRQ_EP93XX_VIC1 + 2)
-#define IRQ_EP93XX_64HZ			(IRQ_EP93XX_VIC1 + 3)
-#define IRQ_EP93XX_WATCHDOG		(IRQ_EP93XX_VIC1 + 4)
-#define IRQ_EP93XX_RTC			(IRQ_EP93XX_VIC1 + 5)
-#define IRQ_EP93XX_IRDA			(IRQ_EP93XX_VIC1 + 6)
-#define IRQ_EP93XX_ETHERNET		(IRQ_EP93XX_VIC1 + 7)
-#define IRQ_EP93XX_EXT3			(IRQ_EP93XX_VIC1 + 8)
-#define IRQ_EP93XX_PROG			(IRQ_EP93XX_VIC1 + 9)
-#define IRQ_EP93XX_1HZ			(IRQ_EP93XX_VIC1 + 10)
-#define IRQ_EP93XX_VSYNC		(IRQ_EP93XX_VIC1 + 11)
-#define IRQ_EP93XX_VIDEO_FIFO		(IRQ_EP93XX_VIC1 + 12)
-#define IRQ_EP93XX_SSP1RX		(IRQ_EP93XX_VIC1 + 13)
-#define IRQ_EP93XX_SSP1TX		(IRQ_EP93XX_VIC1 + 14)
-#define IRQ_EP93XX_GPIO4MUX		(IRQ_EP93XX_VIC1 + 15)
-#define IRQ_EP93XX_GPIO5MUX		(IRQ_EP93XX_VIC1 + 16)
-#define IRQ_EP93XX_GPIO6MUX		(IRQ_EP93XX_VIC1 + 17)
-#define IRQ_EP93XX_GPIO7MUX		(IRQ_EP93XX_VIC1 + 18)
-#define IRQ_EP93XX_TIMER3		(IRQ_EP93XX_VIC1 + 19)
-#define IRQ_EP93XX_UART1		(IRQ_EP93XX_VIC1 + 20)
-#define IRQ_EP93XX_SSP			(IRQ_EP93XX_VIC1 + 21)
-#define IRQ_EP93XX_UART2		(IRQ_EP93XX_VIC1 + 22)
-#define IRQ_EP93XX_UART3		(IRQ_EP93XX_VIC1 + 23)
-#define IRQ_EP93XX_USB			(IRQ_EP93XX_VIC1 + 24)
-#define IRQ_EP93XX_ETHERNET_PME		(IRQ_EP93XX_VIC1 + 25)
-#define IRQ_EP93XX_DSP			(IRQ_EP93XX_VIC1 + 26)
-#define IRQ_EP93XX_GPIO_AB		(IRQ_EP93XX_VIC1 + 27)
-#define IRQ_EP93XX_SAI			(IRQ_EP93XX_VIC1 + 28)
-#define EP93XX_VIC2_VALID_IRQ_MASK	0x1fffffff
-
-#define NR_EP93XX_IRQS			(IRQ_EP93XX_VIC1 + 32 + 24)
-
-#define EP93XX_BOARD_IRQ(x)		(NR_EP93XX_IRQS + (x))
-#define EP93XX_BOARD_IRQS		32
-
-#endif

arch/arm/mach-ep93xx/platform.h

@@ -1,42 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * arch/arm/mach-ep93xx/include/mach/platform.h
- */
-
-#ifndef __ASSEMBLY__
-
-#include <linux/platform_data/eth-ep93xx.h>
-#include <linux/reboot.h>
-
-struct device;
-struct i2c_board_info;
-struct spi_board_info;
-struct platform_device;
-struct ep93xxfb_mach_info;
-struct ep93xx_keypad_platform_data;
-struct ep93xx_spi_info;
-
-void ep93xx_map_io(void);
-void ep93xx_init_irq(void);
-
-void ep93xx_register_flash(unsigned int width,
-			   resource_size_t start, resource_size_t size);
-
-void ep93xx_register_eth(struct ep93xx_eth_data *data, int copy_addr);
-void ep93xx_register_i2c(struct i2c_board_info *devices, int num);
-void ep93xx_register_spi(struct ep93xx_spi_info *info,
-			 struct spi_board_info *devices, int num);
-void ep93xx_register_fb(struct ep93xxfb_mach_info *data);
-void ep93xx_register_pwm(int pwm0, int pwm1);
-void ep93xx_register_keypad(struct ep93xx_keypad_platform_data *data);
-void ep93xx_register_i2s(void);
-void ep93xx_register_ac97(void);
-void ep93xx_register_ide(void);
-void ep93xx_register_adc(void);
-
-struct device *ep93xx_init_devices(void);
-extern void ep93xx_timer_init(void);
-
-void ep93xx_restart(enum reboot_mode, const char *);
-
-#endif

arch/arm/mach-ep93xx/soc.h

@@ -1,212 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * arch/arm/mach-ep93xx/soc.h
- *
- * Copyright (C) 2012 Open Kernel Labs <www.ok-labs.com>
- * Copyright (C) 2012 Ryan Mallon <rmallon@gmail.com>
- */
-
-#ifndef _EP93XX_SOC_H
-#define _EP93XX_SOC_H
-
-#include "ep93xx-regs.h"
-#include "irqs.h"
-
-/*
- * EP93xx Physical Memory Map:
- *
- * The ASDO pin is sampled at system reset to select a synchronous or
- * asynchronous boot configuration.  When ASDO is "1" (i.e. pulled-up)
- * the synchronous boot mode is selected.  When ASDO is "0" (i.e
- * pulled-down) the asynchronous boot mode is selected.
- *
- * In synchronous boot mode nSDCE3 is decoded starting at physical address
- * 0x00000000 and nCS0 is decoded starting at 0xf0000000.  For asynchronous
- * boot mode they are swapped with nCS0 decoded at 0x00000000 ann nSDCE3
- * decoded at 0xf0000000.
- *
- * There is known errata for the EP93xx dealing with External Memory
- * Configurations.  Please refer to "AN273: EP93xx Silicon Rev E Design
- * Guidelines" for more information.  This document can be found at:
- *
- *	http://www.cirrus.com/en/pubs/appNote/AN273REV4.pdf
- */
-
-#define EP93XX_CS0_PHYS_BASE_ASYNC	0x00000000	/* ASDO Pin = 0 */
-#define EP93XX_SDCE3_PHYS_BASE_SYNC	0x00000000	/* ASDO Pin = 1 */
-#define EP93XX_CS1_PHYS_BASE		0x10000000
-#define EP93XX_CS2_PHYS_BASE		0x20000000
-#define EP93XX_CS3_PHYS_BASE		0x30000000
-#define EP93XX_PCMCIA_PHYS_BASE		0x40000000
-#define EP93XX_CS6_PHYS_BASE		0x60000000
-#define EP93XX_CS7_PHYS_BASE		0x70000000
-#define EP93XX_SDCE0_PHYS_BASE		0xc0000000
-#define EP93XX_SDCE1_PHYS_BASE		0xd0000000
-#define EP93XX_SDCE2_PHYS_BASE		0xe0000000
-#define EP93XX_SDCE3_PHYS_BASE_ASYNC	0xf0000000	/* ASDO Pin = 0 */
-#define EP93XX_CS0_PHYS_BASE_SYNC	0xf0000000	/* ASDO Pin = 1 */
-
-/* AHB peripherals */
-#define EP93XX_DMA_BASE			EP93XX_AHB_IOMEM(0x00000000)
-
-#define EP93XX_ETHERNET_PHYS_BASE	EP93XX_AHB_PHYS(0x00010000)
-#define EP93XX_ETHERNET_BASE		EP93XX_AHB_IOMEM(0x00010000)
-
-#define EP93XX_USB_PHYS_BASE		EP93XX_AHB_PHYS(0x00020000)
-#define EP93XX_USB_BASE			EP93XX_AHB_IOMEM(0x00020000)
-
-#define EP93XX_RASTER_PHYS_BASE		EP93XX_AHB_PHYS(0x00030000)
-#define EP93XX_RASTER_BASE		EP93XX_AHB_IOMEM(0x00030000)
-
-#define EP93XX_GRAPHICS_ACCEL_BASE	EP93XX_AHB_IOMEM(0x00040000)
-
-#define EP93XX_SDRAM_CONTROLLER_BASE	EP93XX_AHB_IOMEM(0x00060000)
-
-#define EP93XX_PCMCIA_CONTROLLER_BASE	EP93XX_AHB_IOMEM(0x00080000)
-
-#define EP93XX_BOOT_ROM_BASE		EP93XX_AHB_IOMEM(0x00090000)
-
-#define EP93XX_IDE_PHYS_BASE		EP93XX_AHB_PHYS(0x000a0000)
-#define EP93XX_IDE_BASE			EP93XX_AHB_IOMEM(0x000a0000)
-
-#define EP93XX_VIC1_BASE		EP93XX_AHB_IOMEM(0x000b0000)
-
-#define EP93XX_VIC2_BASE		EP93XX_AHB_IOMEM(0x000c0000)
-
-/* APB peripherals */
-#define EP93XX_TIMER_BASE		EP93XX_APB_IOMEM(0x00010000)
-
-#define EP93XX_I2S_PHYS_BASE		EP93XX_APB_PHYS(0x00020000)
-#define EP93XX_I2S_BASE			EP93XX_APB_IOMEM(0x00020000)
-
-#define EP93XX_SECURITY_BASE		EP93XX_APB_IOMEM(0x00030000)
-
-#define EP93XX_AAC_PHYS_BASE		EP93XX_APB_PHYS(0x00080000)
-#define EP93XX_AAC_BASE			EP93XX_APB_IOMEM(0x00080000)
-
-#define EP93XX_SPI_PHYS_BASE		EP93XX_APB_PHYS(0x000a0000)
-#define EP93XX_SPI_BASE			EP93XX_APB_IOMEM(0x000a0000)
-
-#define EP93XX_IRDA_BASE		EP93XX_APB_IOMEM(0x000b0000)
-
-#define EP93XX_KEY_MATRIX_PHYS_BASE	EP93XX_APB_PHYS(0x000f0000)
-#define EP93XX_KEY_MATRIX_BASE		EP93XX_APB_IOMEM(0x000f0000)
-
-#define EP93XX_ADC_PHYS_BASE		EP93XX_APB_PHYS(0x00100000)
-#define EP93XX_ADC_BASE			EP93XX_APB_IOMEM(0x00100000)
-#define EP93XX_TOUCHSCREEN_BASE		EP93XX_APB_IOMEM(0x00100000)
-
-#define EP93XX_PWM_PHYS_BASE		EP93XX_APB_PHYS(0x00110000)
-#define EP93XX_PWM_BASE			EP93XX_APB_IOMEM(0x00110000)
-
-#define EP93XX_RTC_PHYS_BASE		EP93XX_APB_PHYS(0x00120000)
-#define EP93XX_RTC_BASE			EP93XX_APB_IOMEM(0x00120000)
-
-#define EP93XX_WATCHDOG_PHYS_BASE	EP93XX_APB_PHYS(0x00140000)
-#define EP93XX_WATCHDOG_BASE		EP93XX_APB_IOMEM(0x00140000)
-
-/* System controller */
-#define EP93XX_SYSCON_BASE		EP93XX_APB_IOMEM(0x00130000)
-#define EP93XX_SYSCON_REG(x)		(EP93XX_SYSCON_BASE + (x))
-#define EP93XX_SYSCON_POWER_STATE	EP93XX_SYSCON_REG(0x00)
-#define EP93XX_SYSCON_PWRCNT		EP93XX_SYSCON_REG(0x04)
-#define EP93XX_SYSCON_PWRCNT_FIR_EN	(1<<31)
-#define EP93XX_SYSCON_PWRCNT_UARTBAUD	(1<<29)
-#define EP93XX_SYSCON_PWRCNT_USH_EN	28
-#define EP93XX_SYSCON_PWRCNT_DMA_M2M1	27
-#define EP93XX_SYSCON_PWRCNT_DMA_M2M0	26
-#define EP93XX_SYSCON_PWRCNT_DMA_M2P8	25
-#define EP93XX_SYSCON_PWRCNT_DMA_M2P9	24
-#define EP93XX_SYSCON_PWRCNT_DMA_M2P6	23
-#define EP93XX_SYSCON_PWRCNT_DMA_M2P7	22
-#define EP93XX_SYSCON_PWRCNT_DMA_M2P4	21
-#define EP93XX_SYSCON_PWRCNT_DMA_M2P5	20
-#define EP93XX_SYSCON_PWRCNT_DMA_M2P2	19
-#define EP93XX_SYSCON_PWRCNT_DMA_M2P3	18
-#define EP93XX_SYSCON_PWRCNT_DMA_M2P0	17
-#define EP93XX_SYSCON_PWRCNT_DMA_M2P1	16
-#define EP93XX_SYSCON_HALT		EP93XX_SYSCON_REG(0x08)
-#define EP93XX_SYSCON_STANDBY		EP93XX_SYSCON_REG(0x0c)
-#define EP93XX_SYSCON_CLKSET1		EP93XX_SYSCON_REG(0x20)
-#define EP93XX_SYSCON_CLKSET1_NBYP1	(1<<23)
-#define EP93XX_SYSCON_CLKSET2		EP93XX_SYSCON_REG(0x24)
-#define EP93XX_SYSCON_CLKSET2_NBYP2	(1<<19)
-#define EP93XX_SYSCON_CLKSET2_PLL2_EN	(1<<18)
-#define EP93XX_SYSCON_DEVCFG		EP93XX_SYSCON_REG(0x80)
-#define EP93XX_SYSCON_DEVCFG_SWRST	(1<<31)
-#define EP93XX_SYSCON_DEVCFG_D1ONG	(1<<30)
-#define EP93XX_SYSCON_DEVCFG_D0ONG	(1<<29)
-#define EP93XX_SYSCON_DEVCFG_IONU2	(1<<28)
-#define EP93XX_SYSCON_DEVCFG_GONK	(1<<27)
-#define EP93XX_SYSCON_DEVCFG_TONG	(1<<26)
-#define EP93XX_SYSCON_DEVCFG_MONG	(1<<25)
-#define EP93XX_SYSCON_DEVCFG_U3EN	24
-#define EP93XX_SYSCON_DEVCFG_CPENA	(1<<23)
-#define EP93XX_SYSCON_DEVCFG_A2ONG	(1<<22)
-#define EP93XX_SYSCON_DEVCFG_A1ONG	(1<<21)
-#define EP93XX_SYSCON_DEVCFG_U2EN	20
-#define EP93XX_SYSCON_DEVCFG_EXVC	(1<<19)
-#define EP93XX_SYSCON_DEVCFG_U1EN	18
-#define EP93XX_SYSCON_DEVCFG_TIN	(1<<17)
-#define EP93XX_SYSCON_DEVCFG_HC3IN	(1<<15)
-#define EP93XX_SYSCON_DEVCFG_HC3EN	(1<<14)
-#define EP93XX_SYSCON_DEVCFG_HC1IN	(1<<13)
-#define EP93XX_SYSCON_DEVCFG_HC1EN	(1<<12)
-#define EP93XX_SYSCON_DEVCFG_HONIDE	(1<<11)
-#define EP93XX_SYSCON_DEVCFG_GONIDE	(1<<10)
-#define EP93XX_SYSCON_DEVCFG_PONG	(1<<9)
-#define EP93XX_SYSCON_DEVCFG_EONIDE	(1<<8)
-#define EP93XX_SYSCON_DEVCFG_I2SONSSP	(1<<7)
-#define EP93XX_SYSCON_DEVCFG_I2SONAC97	(1<<6)
-#define EP93XX_SYSCON_DEVCFG_RASONP3	(1<<4)
-#define EP93XX_SYSCON_DEVCFG_RAS	(1<<3)
-#define EP93XX_SYSCON_DEVCFG_ADCPD	(1<<2)
-#define EP93XX_SYSCON_DEVCFG_KEYS	(1<<1)
-#define EP93XX_SYSCON_DEVCFG_SHENA	(1<<0)
-#define EP93XX_SYSCON_VIDCLKDIV		EP93XX_SYSCON_REG(0x84)
-#define EP93XX_SYSCON_CLKDIV_ENABLE	15
-#define EP93XX_SYSCON_CLKDIV_ESEL	(1<<14)
-#define EP93XX_SYSCON_CLKDIV_PSEL	(1<<13)
-#define EP93XX_SYSCON_CLKDIV_PDIV_SHIFT	8
-#define EP93XX_SYSCON_I2SCLKDIV		EP93XX_SYSCON_REG(0x8c)
-#define EP93XX_SYSCON_I2SCLKDIV_SENA	31
-#define EP93XX_SYSCON_I2SCLKDIV_ORIDE   (1<<29)
-#define EP93XX_SYSCON_I2SCLKDIV_SPOL	(1<<19)
-#define EP93XX_I2SCLKDIV_SDIV		(1 << 16)
-#define EP93XX_I2SCLKDIV_LRDIV32	(0 << 17)
-#define EP93XX_I2SCLKDIV_LRDIV64	(1 << 17)
-#define EP93XX_I2SCLKDIV_LRDIV128	(2 << 17)
-#define EP93XX_I2SCLKDIV_LRDIV_MASK	(3 << 17)
-#define EP93XX_SYSCON_KEYTCHCLKDIV	EP93XX_SYSCON_REG(0x90)
-#define EP93XX_SYSCON_KEYTCHCLKDIV_TSEN	31
-#define EP93XX_SYSCON_KEYTCHCLKDIV_ADIV	16
-#define EP93XX_SYSCON_KEYTCHCLKDIV_KEN	15
-#define EP93XX_SYSCON_KEYTCHCLKDIV_KDIV	(1<<0)
-#define EP93XX_SYSCON_SYSCFG		EP93XX_SYSCON_REG(0x9c)
-#define EP93XX_SYSCON_SYSCFG_REV_MASK	(0xf0000000)
-#define EP93XX_SYSCON_SYSCFG_REV_SHIFT	(28)
-#define EP93XX_SYSCON_SYSCFG_SBOOT	(1<<8)
-#define EP93XX_SYSCON_SYSCFG_LCSN7	(1<<7)
-#define EP93XX_SYSCON_SYSCFG_LCSN6	(1<<6)
-#define EP93XX_SYSCON_SYSCFG_LASDO	(1<<5)
-#define EP93XX_SYSCON_SYSCFG_LEEDA	(1<<4)
-#define EP93XX_SYSCON_SYSCFG_LEECLK	(1<<3)
-#define EP93XX_SYSCON_SYSCFG_LCSN2	(1<<1)
-#define EP93XX_SYSCON_SYSCFG_LCSN1	(1<<0)
-#define EP93XX_SYSCON_SWLOCK		EP93XX_SYSCON_REG(0xc0)
-
-/* EP93xx System Controller software locked register write */
-void ep93xx_syscon_swlocked_write(unsigned int val, void __iomem *reg);
-void ep93xx_devcfg_set_clear(unsigned int set_bits, unsigned int clear_bits);
-
-static inline void ep93xx_devcfg_set_bits(unsigned int bits)
-{
-	ep93xx_devcfg_set_clear(bits, 0x00);
-}
-
-static inline void ep93xx_devcfg_clear_bits(unsigned int bits)
-{
-	ep93xx_devcfg_set_clear(0x00, bits);
-}
-
-#endif /* _EP93XX_SOC_H */

arch/arm/mach-ep93xx/timer-ep93xx.c

@@ -1,143 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/clocksource.h>
-#include <linux/clockchips.h>
-#include <linux/sched_clock.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/io.h>
-#include <asm/mach/time.h>
-#include "soc.h"
-#include "platform.h"
-
-/*************************************************************************
- * Timer handling for EP93xx
- *************************************************************************
- * The ep93xx has four internal timers.  Timers 1, 2 (both 16 bit) and
- * 3 (32 bit) count down at 508 kHz, are self-reloading, and can generate
- * an interrupt on underflow.  Timer 4 (40 bit) counts down at 983.04 kHz,
- * is free-running, and can't generate interrupts.
- *
- * The 508 kHz timers are ideal for use for the timer interrupt, as the
- * most common values of HZ divide 508 kHz nicely.  We pick the 32 bit
- * timer (timer 3) to get as long sleep intervals as possible when using
- * CONFIG_NO_HZ.
- *
- * The higher clock rate of timer 4 makes it a better choice than the
- * other timers for use as clock source and for sched_clock(), providing
- * a stable 40 bit time base.
- *************************************************************************
- */
-#define EP93XX_TIMER_REG(x)		(EP93XX_TIMER_BASE + (x))
-#define EP93XX_TIMER1_LOAD		EP93XX_TIMER_REG(0x00)
-#define EP93XX_TIMER1_VALUE		EP93XX_TIMER_REG(0x04)
-#define EP93XX_TIMER1_CONTROL		EP93XX_TIMER_REG(0x08)
-#define EP93XX_TIMER123_CONTROL_ENABLE	(1 << 7)
-#define EP93XX_TIMER123_CONTROL_MODE	(1 << 6)
-#define EP93XX_TIMER123_CONTROL_CLKSEL	(1 << 3)
-#define EP93XX_TIMER1_CLEAR		EP93XX_TIMER_REG(0x0c)
-#define EP93XX_TIMER2_LOAD		EP93XX_TIMER_REG(0x20)
-#define EP93XX_TIMER2_VALUE		EP93XX_TIMER_REG(0x24)
-#define EP93XX_TIMER2_CONTROL		EP93XX_TIMER_REG(0x28)
-#define EP93XX_TIMER2_CLEAR		EP93XX_TIMER_REG(0x2c)
-#define EP93XX_TIMER4_VALUE_LOW		EP93XX_TIMER_REG(0x60)
-#define EP93XX_TIMER4_VALUE_HIGH	EP93XX_TIMER_REG(0x64)
-#define EP93XX_TIMER4_VALUE_HIGH_ENABLE	(1 << 8)
-#define EP93XX_TIMER3_LOAD		EP93XX_TIMER_REG(0x80)
-#define EP93XX_TIMER3_VALUE		EP93XX_TIMER_REG(0x84)
-#define EP93XX_TIMER3_CONTROL		EP93XX_TIMER_REG(0x88)
-#define EP93XX_TIMER3_CLEAR		EP93XX_TIMER_REG(0x8c)
-
-#define EP93XX_TIMER123_RATE		508469
-#define EP93XX_TIMER4_RATE		983040
-
-static u64 notrace ep93xx_read_sched_clock(void)
-{
-	u64 ret;
-
-	ret = readl(EP93XX_TIMER4_VALUE_LOW);
-	ret |= ((u64) (readl(EP93XX_TIMER4_VALUE_HIGH) & 0xff) << 32);
-	return ret;
-}
-
-static u64 ep93xx_clocksource_read(struct clocksource *c)
-{
-	u64 ret;
-
-	ret = readl(EP93XX_TIMER4_VALUE_LOW);
-	ret |= ((u64) (readl(EP93XX_TIMER4_VALUE_HIGH) & 0xff) << 32);
-	return (u64) ret;
-}
-
-static int ep93xx_clkevt_set_next_event(unsigned long next,
-					struct clock_event_device *evt)
-{
-	/* Default mode: periodic, off, 508 kHz */
-	u32 tmode = EP93XX_TIMER123_CONTROL_MODE |
-		    EP93XX_TIMER123_CONTROL_CLKSEL;
-
-	/* Clear timer */
-	writel(tmode, EP93XX_TIMER3_CONTROL);
-
-	/* Set next event */
-	writel(next, EP93XX_TIMER3_LOAD);
-	writel(tmode | EP93XX_TIMER123_CONTROL_ENABLE,
-	       EP93XX_TIMER3_CONTROL);
-        return 0;
-}
-
-
-static int ep93xx_clkevt_shutdown(struct clock_event_device *evt)
-{
-	/* Disable timer */
-	writel(0, EP93XX_TIMER3_CONTROL);
-
-	return 0;
-}
-
-static struct clock_event_device ep93xx_clockevent = {
-	.name			= "timer1",
-	.features		= CLOCK_EVT_FEAT_ONESHOT,
-	.set_state_shutdown	= ep93xx_clkevt_shutdown,
-	.set_state_oneshot	= ep93xx_clkevt_shutdown,
-	.tick_resume		= ep93xx_clkevt_shutdown,
-	.set_next_event		= ep93xx_clkevt_set_next_event,
-	.rating			= 300,
-};
-
-static irqreturn_t ep93xx_timer_interrupt(int irq, void *dev_id)
-{
-	struct clock_event_device *evt = dev_id;
-
-	/* Writing any value clears the timer interrupt */
-	writel(1, EP93XX_TIMER3_CLEAR);
-
-	evt->event_handler(evt);
-
-	return IRQ_HANDLED;
-}
-
-void __init ep93xx_timer_init(void)
-{
-	int irq = IRQ_EP93XX_TIMER3;
-	unsigned long flags = IRQF_TIMER | IRQF_IRQPOLL;
-
-	/* Enable and register clocksource and sched_clock on timer 4 */
-	writel(EP93XX_TIMER4_VALUE_HIGH_ENABLE,
-	       EP93XX_TIMER4_VALUE_HIGH);
-	clocksource_mmio_init(NULL, "timer4",
-			      EP93XX_TIMER4_RATE, 200, 40,
-			      ep93xx_clocksource_read);
-	sched_clock_register(ep93xx_read_sched_clock, 40,
-			     EP93XX_TIMER4_RATE);
-
-	/* Set up clockevent on timer 3 */
-	if (request_irq(irq, ep93xx_timer_interrupt, flags, "ep93xx timer",
-			&ep93xx_clockevent))
-		pr_err("Failed to request irq %d (ep93xx timer)\n", irq);
-	clockevents_config_and_register(&ep93xx_clockevent,
-					EP93XX_TIMER123_RATE,
-					1,
-					0xffffffffU);
-}

arch/arm/mach-ep93xx/ts72xx.c

@@ -1,422 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * arch/arm/mach-ep93xx/ts72xx.c
- * Technologic Systems TS72xx SBC support.
- *
- * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/io.h>
-#include <linux/mtd/platnand.h>
-#include <linux/spi/spi.h>
-#include <linux/spi/flash.h>
-#include <linux/spi/mmc_spi.h>
-#include <linux/mmc/host.h>
-#include <linux/platform_data/spi-ep93xx.h>
-#include <linux/gpio/machine.h>
-
-#include "gpio-ep93xx.h"
-#include "hardware.h"
-
-#include <asm/mach-types.h>
-#include <asm/mach/map.h>
-#include <asm/mach/arch.h>
-
-#include "soc.h"
-#include "ts72xx.h"
-
-/*************************************************************************
- * IO map
- *************************************************************************/
-static struct map_desc ts72xx_io_desc[] __initdata = {
-	{
-		.virtual	= (unsigned long)TS72XX_MODEL_VIRT_BASE,
-		.pfn		= __phys_to_pfn(TS72XX_MODEL_PHYS_BASE),
-		.length		= TS72XX_MODEL_SIZE,
-		.type		= MT_DEVICE,
-	}, {
-		.virtual	= (unsigned long)TS72XX_OPTIONS_VIRT_BASE,
-		.pfn		= __phys_to_pfn(TS72XX_OPTIONS_PHYS_BASE),
-		.length		= TS72XX_OPTIONS_SIZE,
-		.type		= MT_DEVICE,
-	}, {
-		.virtual	= (unsigned long)TS72XX_OPTIONS2_VIRT_BASE,
-		.pfn		= __phys_to_pfn(TS72XX_OPTIONS2_PHYS_BASE),
-		.length		= TS72XX_OPTIONS2_SIZE,
-		.type		= MT_DEVICE,
-	}, {
-		.virtual	= (unsigned long)TS72XX_CPLDVER_VIRT_BASE,
-		.pfn		= __phys_to_pfn(TS72XX_CPLDVER_PHYS_BASE),
-		.length		= TS72XX_CPLDVER_SIZE,
-		.type		= MT_DEVICE,
-	}
-};
-
-static void __init ts72xx_map_io(void)
-{
-	ep93xx_map_io();
-	iotable_init(ts72xx_io_desc, ARRAY_SIZE(ts72xx_io_desc));
-}
-
-
-/*************************************************************************
- * NAND flash
- *************************************************************************/
-#define TS72XX_NAND_CONTROL_ADDR_LINE	22	/* 0xN0400000 */
-#define TS72XX_NAND_BUSY_ADDR_LINE	23	/* 0xN0800000 */
-
-static void ts72xx_nand_hwcontrol(struct nand_chip *chip,
-				  int cmd, unsigned int ctrl)
-{
-	if (ctrl & NAND_CTRL_CHANGE) {
-		void __iomem *addr = chip->legacy.IO_ADDR_R;
-		unsigned char bits;
-
-		addr += (1 << TS72XX_NAND_CONTROL_ADDR_LINE);
-
-		bits = __raw_readb(addr) & ~0x07;
-		bits |= (ctrl & NAND_NCE) << 2;	/* bit 0 -> bit 2 */
-		bits |= (ctrl & NAND_CLE);	/* bit 1 -> bit 1 */
-		bits |= (ctrl & NAND_ALE) >> 2;	/* bit 2 -> bit 0 */
-
-		__raw_writeb(bits, addr);
-	}
-
-	if (cmd != NAND_CMD_NONE)
-		__raw_writeb(cmd, chip->legacy.IO_ADDR_W);
-}
-
-static int ts72xx_nand_device_ready(struct nand_chip *chip)
-{
-	void __iomem *addr = chip->legacy.IO_ADDR_R;
-
-	addr += (1 << TS72XX_NAND_BUSY_ADDR_LINE);
-
-	return !!(__raw_readb(addr) & 0x20);
-}
-
-#define TS72XX_BOOTROM_PART_SIZE	(SZ_16K)
-#define TS72XX_REDBOOT_PART_SIZE	(SZ_2M + SZ_1M)
-
-static struct mtd_partition ts72xx_nand_parts[] = {
-	{
-		.name		= "TS-BOOTROM",
-		.offset		= 0,
-		.size		= TS72XX_BOOTROM_PART_SIZE,
-		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
-	}, {
-		.name		= "Linux",
-		.offset		= MTDPART_OFS_RETAIN,
-		.size		= TS72XX_REDBOOT_PART_SIZE,
-				/* leave so much for last partition */
-	}, {
-		.name		= "RedBoot",
-		.offset		= MTDPART_OFS_APPEND,
-		.size		= MTDPART_SIZ_FULL,
-		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
-	},
-};
-
-static struct platform_nand_data ts72xx_nand_data = {
-	.chip = {
-		.nr_chips	= 1,
-		.chip_offset	= 0,
-		.chip_delay	= 15,
-	},
-	.ctrl = {
-		.cmd_ctrl	= ts72xx_nand_hwcontrol,
-		.dev_ready	= ts72xx_nand_device_ready,
-	},
-};
-
-static struct resource ts72xx_nand_resource[] = {
-	{
-		.start		= 0,			/* filled in later */
-		.end		= 0,			/* filled in later */
-		.flags		= IORESOURCE_MEM,
-	},
-};
-
-static struct platform_device ts72xx_nand_flash = {
-	.name			= "gen_nand",
-	.id			= -1,
-	.dev.platform_data	= &ts72xx_nand_data,
-	.resource		= ts72xx_nand_resource,
-	.num_resources		= ARRAY_SIZE(ts72xx_nand_resource),
-};
-
-static void __init ts72xx_register_flash(struct mtd_partition *parts, int n,
-				  resource_size_t start)
-{
-	/*
-	 * TS7200 has NOR flash all other TS72xx board have NAND flash.
-	 */
-	if (board_is_ts7200()) {
-		ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M);
-	} else {
-		ts72xx_nand_resource[0].start = start;
-		ts72xx_nand_resource[0].end = start + SZ_16M - 1;
-
-		ts72xx_nand_data.chip.partitions = parts;
-		ts72xx_nand_data.chip.nr_partitions = n;
-
-		platform_device_register(&ts72xx_nand_flash);
-	}
-}
-
-/*************************************************************************
- * RTC M48T86
- *************************************************************************/
-#define TS72XX_RTC_INDEX_PHYS_BASE	(EP93XX_CS1_PHYS_BASE + 0x00800000)
-#define TS72XX_RTC_DATA_PHYS_BASE	(EP93XX_CS1_PHYS_BASE + 0x01700000)
-
-static struct resource ts72xx_rtc_resources[] = {
-	DEFINE_RES_MEM(TS72XX_RTC_INDEX_PHYS_BASE, 0x01),
-	DEFINE_RES_MEM(TS72XX_RTC_DATA_PHYS_BASE, 0x01),
-};
-
-static struct platform_device ts72xx_rtc_device = {
-	.name		= "rtc-m48t86",
-	.id		= -1,
-	.resource	= ts72xx_rtc_resources,
-	.num_resources 	= ARRAY_SIZE(ts72xx_rtc_resources),
-};
-
-/*************************************************************************
- * Watchdog (in CPLD)
- *************************************************************************/
-#define TS72XX_WDT_CONTROL_PHYS_BASE	(EP93XX_CS2_PHYS_BASE + 0x03800000)
-#define TS72XX_WDT_FEED_PHYS_BASE	(EP93XX_CS2_PHYS_BASE + 0x03c00000)
-
-static struct resource ts72xx_wdt_resources[] = {
-	DEFINE_RES_MEM(TS72XX_WDT_CONTROL_PHYS_BASE, 0x01),
-	DEFINE_RES_MEM(TS72XX_WDT_FEED_PHYS_BASE, 0x01),
-};
-
-static struct platform_device ts72xx_wdt_device = {
-	.name		= "ts72xx-wdt",
-	.id		= -1,
-	.resource	= ts72xx_wdt_resources,
-	.num_resources	= ARRAY_SIZE(ts72xx_wdt_resources),
-};
-
-/*************************************************************************
- * ETH
- *************************************************************************/
-static struct ep93xx_eth_data __initdata ts72xx_eth_data = {
-	.phy_id		= 1,
-};
-
-/*************************************************************************
- * SPI SD/MMC host
- *************************************************************************/
-#define BK3_EN_SDCARD_PHYS_BASE         0x12400000
-#define BK3_EN_SDCARD_PWR 0x0
-#define BK3_DIS_SDCARD_PWR 0x0C
-static void bk3_mmc_spi_setpower(struct device *dev, unsigned int vdd)
-{
-	void __iomem *pwr_sd = ioremap(BK3_EN_SDCARD_PHYS_BASE, SZ_4K);
-
-	if (!pwr_sd) {
-		pr_err("Failed to enable SD card power!");
-		return;
-	}
-
-	pr_debug("%s: SD card pwr %s VDD:0x%x\n", __func__,
-		 !!vdd ? "ON" : "OFF", vdd);
-
-	if (!!vdd)
-		__raw_writeb(BK3_EN_SDCARD_PWR, pwr_sd);
-	else
-		__raw_writeb(BK3_DIS_SDCARD_PWR, pwr_sd);
-
-	iounmap(pwr_sd);
-}
-
-static struct mmc_spi_platform_data bk3_spi_mmc_data = {
-	.detect_delay	= 500,
-	.powerup_msecs	= 100,
-	.ocr_mask	= MMC_VDD_32_33 | MMC_VDD_33_34,
-	.caps		= MMC_CAP_NONREMOVABLE,
-	.setpower       = bk3_mmc_spi_setpower,
-};
-
-/*************************************************************************
- * SPI Bus - SD card access
- *************************************************************************/
-static struct spi_board_info bk3_spi_board_info[] __initdata = {
-	{
-		.modalias		= "mmc_spi",
-		.platform_data		= &bk3_spi_mmc_data,
-		.max_speed_hz		= 7.4E6,
-		.bus_num		= 0,
-		.chip_select		= 0,
-		.mode			= SPI_MODE_0,
-	},
-};
-
-/*
- * This is a stub -> the FGPIO[3] pin is not connected on the schematic
- * The all work is performed automatically by !SPI_FRAME (SFRM1) and
- * goes through CPLD
- */
-static struct gpiod_lookup_table bk3_spi_cs_gpio_table = {
-	.dev_id = "spi0",
-	.table = {
-		GPIO_LOOKUP("F", 3, "cs", GPIO_ACTIVE_LOW),
-		{ },
-	},
-};
-
-static struct ep93xx_spi_info bk3_spi_master __initdata = {
-	.use_dma	= 1,
-};
-
-/*************************************************************************
- * TS72XX support code
- *************************************************************************/
-#if IS_ENABLED(CONFIG_FPGA_MGR_TS73XX)
-
-/* Relative to EP93XX_CS1_PHYS_BASE */
-#define TS73XX_FPGA_LOADER_BASE		0x03c00000
-
-static struct resource ts73xx_fpga_resources[] = {
-	{
-		.start	= EP93XX_CS1_PHYS_BASE + TS73XX_FPGA_LOADER_BASE,
-		.end	= EP93XX_CS1_PHYS_BASE + TS73XX_FPGA_LOADER_BASE + 1,
-		.flags	= IORESOURCE_MEM,
-	},
-};
-
-static struct platform_device ts73xx_fpga_device = {
-	.name	= "ts73xx-fpga-mgr",
-	.id	= -1,
-	.resource = ts73xx_fpga_resources,
-	.num_resources = ARRAY_SIZE(ts73xx_fpga_resources),
-};
-
-#endif
-
-/*************************************************************************
- * SPI Bus
- *************************************************************************/
-static struct spi_board_info ts72xx_spi_devices[] __initdata = {
-	{
-		.modalias		= "tmp122",
-		.max_speed_hz		= 2 * 1000 * 1000,
-		.bus_num		= 0,
-		.chip_select		= 0,
-	},
-};
-
-static struct gpiod_lookup_table ts72xx_spi_cs_gpio_table = {
-	.dev_id = "spi0",
-	.table = {
-		/* DIO_17 */
-		GPIO_LOOKUP("F", 2, "cs", GPIO_ACTIVE_LOW),
-		{ },
-	},
-};
-
-static struct ep93xx_spi_info ts72xx_spi_info __initdata = {
-	/* Intentionally left blank */
-};
-
-static void __init ts72xx_init_machine(void)
-{
-	ep93xx_init_devices();
-	ts72xx_register_flash(ts72xx_nand_parts, ARRAY_SIZE(ts72xx_nand_parts),
-			      is_ts9420_installed() ?
-			      EP93XX_CS7_PHYS_BASE : EP93XX_CS6_PHYS_BASE);
-	platform_device_register(&ts72xx_rtc_device);
-	platform_device_register(&ts72xx_wdt_device);
-
-	ep93xx_register_eth(&ts72xx_eth_data, 1);
-#if IS_ENABLED(CONFIG_FPGA_MGR_TS73XX)
-	if (board_is_ts7300())
-		platform_device_register(&ts73xx_fpga_device);
-#endif
-	gpiod_add_lookup_table(&ts72xx_spi_cs_gpio_table);
-	ep93xx_register_spi(&ts72xx_spi_info, ts72xx_spi_devices,
-			    ARRAY_SIZE(ts72xx_spi_devices));
-}
-
-MACHINE_START(TS72XX, "Technologic Systems TS-72xx SBC")
-	/* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
-	.atag_offset	= 0x100,
-	.nr_irqs	= NR_EP93XX_IRQS,
-	.map_io		= ts72xx_map_io,
-	.init_irq	= ep93xx_init_irq,
-	.init_time	= ep93xx_timer_init,
-	.init_machine	= ts72xx_init_machine,
-	.restart	= ep93xx_restart,
-MACHINE_END
-
-/*************************************************************************
- * EP93xx I2S audio peripheral handling
- *************************************************************************/
-static struct resource ep93xx_i2s_resource[] = {
-	DEFINE_RES_MEM(EP93XX_I2S_PHYS_BASE, 0x100),
-	DEFINE_RES_IRQ_NAMED(IRQ_EP93XX_SAI, "spilink i2s slave"),
-};
-
-static struct platform_device ep93xx_i2s_device = {
-	.name		= "ep93xx-spilink-i2s",
-	.id		= -1,
-	.num_resources	= ARRAY_SIZE(ep93xx_i2s_resource),
-	.resource	= ep93xx_i2s_resource,
-};
-
-/*************************************************************************
- * BK3 support code
- *************************************************************************/
-static struct mtd_partition bk3_nand_parts[] = {
-	{
-		.name		= "System",
-		.offset	= 0x00000000,
-		.size		= 0x01e00000,
-	}, {
-		.name		= "Data",
-		.offset	= 0x01e00000,
-		.size		= 0x05f20000
-	}, {
-		.name		= "RedBoot",
-		.offset	= 0x07d20000,
-		.size		= 0x002e0000,
-		.mask_flags	= MTD_WRITEABLE,	/* force RO */
-	},
-};
-
-static void __init bk3_init_machine(void)
-{
-	ep93xx_init_devices();
-
-	ts72xx_register_flash(bk3_nand_parts, ARRAY_SIZE(bk3_nand_parts),
-			      EP93XX_CS6_PHYS_BASE);
-
-	ep93xx_register_eth(&ts72xx_eth_data, 1);
-
-	gpiod_add_lookup_table(&bk3_spi_cs_gpio_table);
-	ep93xx_register_spi(&bk3_spi_master, bk3_spi_board_info,
-			    ARRAY_SIZE(bk3_spi_board_info));
-
-	/* Configure ep93xx's I2S to use AC97 pins */
-	ep93xx_devcfg_set_bits(EP93XX_SYSCON_DEVCFG_I2SONAC97);
-	platform_device_register(&ep93xx_i2s_device);
-}
-
-MACHINE_START(BK3, "Liebherr controller BK3.1")
-	/* Maintainer: Lukasz Majewski <lukma@denx.de> */
-	.atag_offset	= 0x100,
-	.nr_irqs	= NR_EP93XX_IRQS,
-	.map_io		= ts72xx_map_io,
-	.init_irq	= ep93xx_init_irq,
-	.init_time	= ep93xx_timer_init,
-	.init_machine	= bk3_init_machine,
-	.restart	= ep93xx_restart,
-MACHINE_END

arch/arm/mach-ep93xx/ts72xx.h

@@ -1,94 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * arch/arm/mach-ep93xx/include/mach/ts72xx.h
- */
-
-/*
- * TS72xx memory map:
- *
- * virt		phys		size
- * febff000	22000000	4K	model number register (bits 0-2)
- * febfe000	22400000	4K	options register
- * febfd000	22800000	4K	options register #2
- * febfc000     23400000        4K      CPLD version register
- */
-
-#ifndef __TS72XX_H_
-#define __TS72XX_H_
-
-#define TS72XX_MODEL_PHYS_BASE		0x22000000
-#define TS72XX_MODEL_VIRT_BASE		IOMEM(0xfebff000)
-#define TS72XX_MODEL_SIZE		0x00001000
-
-#define TS72XX_MODEL_TS7200		0x00
-#define TS72XX_MODEL_TS7250		0x01
-#define TS72XX_MODEL_TS7260		0x02
-#define TS72XX_MODEL_TS7300		0x03
-#define TS72XX_MODEL_TS7400		0x04
-#define TS72XX_MODEL_MASK		0x07
-
-
-#define TS72XX_OPTIONS_PHYS_BASE	0x22400000
-#define TS72XX_OPTIONS_VIRT_BASE	IOMEM(0xfebfe000)
-#define TS72XX_OPTIONS_SIZE		0x00001000
-
-#define TS72XX_OPTIONS_COM2_RS485	0x02
-#define TS72XX_OPTIONS_MAX197		0x01
-
-
-#define TS72XX_OPTIONS2_PHYS_BASE	0x22800000
-#define TS72XX_OPTIONS2_VIRT_BASE	IOMEM(0xfebfd000)
-#define TS72XX_OPTIONS2_SIZE		0x00001000
-
-#define TS72XX_OPTIONS2_TS9420		0x04
-#define TS72XX_OPTIONS2_TS9420_BOOT	0x02
-
-#define TS72XX_CPLDVER_PHYS_BASE	0x23400000
-#define TS72XX_CPLDVER_VIRT_BASE	IOMEM(0xfebfc000)
-#define TS72XX_CPLDVER_SIZE		0x00001000
-
-#ifndef __ASSEMBLY__
-
-static inline int ts72xx_model(void)
-{
-	return __raw_readb(TS72XX_MODEL_VIRT_BASE) & TS72XX_MODEL_MASK;
-}
-
-static inline int board_is_ts7200(void)
-{
-	return ts72xx_model() == TS72XX_MODEL_TS7200;
-}
-
-static inline int board_is_ts7250(void)
-{
-	return ts72xx_model() == TS72XX_MODEL_TS7250;
-}
-
-static inline int board_is_ts7260(void)
-{
-	return ts72xx_model() == TS72XX_MODEL_TS7260;
-}
-
-static inline int board_is_ts7300(void)
-{
-	return ts72xx_model()  == TS72XX_MODEL_TS7300;
-}
-
-static inline int board_is_ts7400(void)
-{
-	return ts72xx_model() == TS72XX_MODEL_TS7400;
-}
-
-static inline int is_max197_installed(void)
-{
-	return !!(__raw_readb(TS72XX_OPTIONS_VIRT_BASE) &
-					TS72XX_OPTIONS_MAX197);
-}
-
-static inline int is_ts9420_installed(void)
-{
-	return !!(__raw_readb(TS72XX_OPTIONS2_VIRT_BASE) &
-					TS72XX_OPTIONS2_TS9420);
-}
-#endif
-#endif /* __TS72XX_H_ */

arch/arm/mach-ep93xx/vision_ep9307.c

@@ -1,319 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * arch/arm/mach-ep93xx/vision_ep9307.c
- * Vision Engraving Systems EP9307 SoM support.
- *
- * Copyright (C) 2008-2011 Vision Engraving Systems
- * H Hartley Sweeten <hsweeten@visionengravers.com>
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/irq.h>
-#include <linux/gpio.h>
-#include <linux/gpio/machine.h>
-#include <linux/fb.h>
-#include <linux/io.h>
-#include <linux/mtd/partitions.h>
-#include <linux/i2c.h>
-#include <linux/platform_data/pca953x.h>
-#include <linux/spi/spi.h>
-#include <linux/spi/flash.h>
-#include <linux/spi/mmc_spi.h>
-#include <linux/mmc/host.h>
-
-#include <sound/cs4271.h>
-
-#include "hardware.h"
-#include <linux/platform_data/video-ep93xx.h>
-#include <linux/platform_data/spi-ep93xx.h>
-#include "gpio-ep93xx.h"
-
-#include <asm/mach-types.h>
-#include <asm/mach/map.h>
-#include <asm/mach/arch.h>
-
-#include "soc.h"
-
-/*************************************************************************
- * Static I/O mappings for the FPGA
- *************************************************************************/
-#define VISION_PHYS_BASE	EP93XX_CS7_PHYS_BASE
-#define VISION_VIRT_BASE	0xfebff000
-
-static struct map_desc vision_io_desc[] __initdata = {
-	{
-		.virtual	= VISION_VIRT_BASE,
-		.pfn		= __phys_to_pfn(VISION_PHYS_BASE),
-		.length		= SZ_4K,
-		.type		= MT_DEVICE,
-	},
-};
-
-static void __init vision_map_io(void)
-{
-	ep93xx_map_io();
-
-	iotable_init(vision_io_desc, ARRAY_SIZE(vision_io_desc));
-}
-
-/*************************************************************************
- * Ethernet
- *************************************************************************/
-static struct ep93xx_eth_data vision_eth_data __initdata = {
-	.phy_id		= 1,
-};
-
-/*************************************************************************
- * Framebuffer
- *************************************************************************/
-#define VISION_LCD_ENABLE	EP93XX_GPIO_LINE_EGPIO1
-
-static int vision_lcd_setup(struct platform_device *pdev)
-{
-	int err;
-
-	err = gpio_request_one(VISION_LCD_ENABLE, GPIOF_OUT_INIT_HIGH, dev_name(&pdev->dev));
-	if (err)
-		return err;
-
-	ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_RAS |
-				 EP93XX_SYSCON_DEVCFG_RASONP3 |
-				 EP93XX_SYSCON_DEVCFG_EXVC);
-
-	return 0;
-}
-
-static void vision_lcd_teardown(struct platform_device *pdev)
-{
-	gpio_free(VISION_LCD_ENABLE);
-}
-
-static void vision_lcd_blank(int blank_mode, struct fb_info *info)
-{
-	if (blank_mode)
-		gpio_set_value(VISION_LCD_ENABLE, 0);
-	else
-		gpio_set_value(VISION_LCD_ENABLE, 1);
-}
-
-static struct ep93xxfb_mach_info ep93xxfb_info __initdata = {
-	.flags		= EP93XXFB_USE_SDCSN0 | EP93XXFB_PCLK_FALLING,
-	.setup		= vision_lcd_setup,
-	.teardown	= vision_lcd_teardown,
-	.blank		= vision_lcd_blank,
-};
-
-
-/*************************************************************************
- * GPIO Expanders
- *************************************************************************/
-#define PCA9539_74_GPIO_BASE	(EP93XX_GPIO_LINE_MAX + 1)
-#define PCA9539_75_GPIO_BASE	(PCA9539_74_GPIO_BASE + 16)
-#define PCA9539_76_GPIO_BASE	(PCA9539_75_GPIO_BASE + 16)
-#define PCA9539_77_GPIO_BASE	(PCA9539_76_GPIO_BASE + 16)
-
-static struct pca953x_platform_data pca953x_74_gpio_data = {
-	.gpio_base	= PCA9539_74_GPIO_BASE,
-	.irq_base	= EP93XX_BOARD_IRQ(0),
-};
-
-static struct pca953x_platform_data pca953x_75_gpio_data = {
-	.gpio_base	= PCA9539_75_GPIO_BASE,
-	.irq_base	= -1,
-};
-
-static struct pca953x_platform_data pca953x_76_gpio_data = {
-	.gpio_base	= PCA9539_76_GPIO_BASE,
-	.irq_base	= -1,
-};
-
-static struct pca953x_platform_data pca953x_77_gpio_data = {
-	.gpio_base	= PCA9539_77_GPIO_BASE,
-	.irq_base	= -1,
-};
-
-/*************************************************************************
- * I2C Bus
- *************************************************************************/
-
-static struct i2c_board_info vision_i2c_info[] __initdata = {
-	{
-		I2C_BOARD_INFO("isl1208", 0x6f),
-		.irq		= IRQ_EP93XX_EXT1,
-	}, {
-		I2C_BOARD_INFO("pca9539", 0x74),
-		.platform_data	= &pca953x_74_gpio_data,
-	}, {
-		I2C_BOARD_INFO("pca9539", 0x75),
-		.platform_data	= &pca953x_75_gpio_data,
-	}, {
-		I2C_BOARD_INFO("pca9539", 0x76),
-		.platform_data	= &pca953x_76_gpio_data,
-	}, {
-		I2C_BOARD_INFO("pca9539", 0x77),
-		.platform_data	= &pca953x_77_gpio_data,
-	},
-};
-
-/*************************************************************************
- * SPI CS4271 Audio Codec
- *************************************************************************/
-static struct cs4271_platform_data vision_cs4271_data = {
-	/* Intentionally left blank */
-};
-
-/*************************************************************************
- * SPI Flash
- *************************************************************************/
-static struct mtd_partition vision_spi_flash_partitions[] = {
-	{
-		.name	= "SPI bootstrap",
-		.offset	= 0,
-		.size	= SZ_4K,
-	}, {
-		.name	= "Bootstrap config",
-		.offset	= MTDPART_OFS_APPEND,
-		.size	= SZ_4K,
-	}, {
-		.name	= "System config",
-		.offset	= MTDPART_OFS_APPEND,
-		.size	= MTDPART_SIZ_FULL,
-	},
-};
-
-static struct flash_platform_data vision_spi_flash_data = {
-	.name		= "SPI Flash",
-	.parts		= vision_spi_flash_partitions,
-	.nr_parts	= ARRAY_SIZE(vision_spi_flash_partitions),
-};
-
-/*************************************************************************
- * SPI SD/MMC host
- *************************************************************************/
-static struct mmc_spi_platform_data vision_spi_mmc_data = {
-	.detect_delay	= 100,
-	.powerup_msecs	= 100,
-	.ocr_mask	= MMC_VDD_32_33 | MMC_VDD_33_34,
-	.caps2		= MMC_CAP2_RO_ACTIVE_HIGH,
-};
-
-static struct gpiod_lookup_table vision_spi_mmc_gpio_table = {
-	.dev_id = "mmc_spi.2", /* "mmc_spi @ CS2 */
-	.table = {
-		/* Card detect */
-		GPIO_LOOKUP_IDX("B", 7, NULL, 0, GPIO_ACTIVE_LOW),
-		/* Write protect */
-		GPIO_LOOKUP_IDX("F", 0, NULL, 1, GPIO_ACTIVE_HIGH),
-		{ },
-	},
-};
-
-/*************************************************************************
- * SPI Bus
- *************************************************************************/
-static struct spi_board_info vision_spi_board_info[] __initdata = {
-	{
-		.modalias		= "cs4271",
-		.platform_data		= &vision_cs4271_data,
-		.max_speed_hz		= 6000000,
-		.bus_num		= 0,
-		.chip_select		= 0,
-		.mode			= SPI_MODE_3,
-	}, {
-		.modalias		= "sst25l",
-		.platform_data		= &vision_spi_flash_data,
-		.max_speed_hz		= 20000000,
-		.bus_num		= 0,
-		.chip_select		= 1,
-		.mode			= SPI_MODE_3,
-	}, {
-		.modalias		= "mmc_spi",
-		.platform_data		= &vision_spi_mmc_data,
-		.max_speed_hz		= 20000000,
-		.bus_num		= 0,
-		.chip_select		= 2,
-		.mode			= SPI_MODE_3,
-	},
-};
-
-static struct gpiod_lookup_table vision_spi_cs4271_gpio_table = {
-	.dev_id = "spi0.0", /* cs4271 @ CS0 */
-	.table = {
-		/* RESET */
-		GPIO_LOOKUP_IDX("H", 2, NULL, 0, GPIO_ACTIVE_LOW),
-		{ },
-	},
-};
-
-static struct gpiod_lookup_table vision_spi_cs_gpio_table = {
-	.dev_id = "spi0",
-	.table = {
-		GPIO_LOOKUP_IDX("A", 6, "cs", 0, GPIO_ACTIVE_LOW),
-		GPIO_LOOKUP_IDX("A", 7, "cs", 1, GPIO_ACTIVE_LOW),
-		GPIO_LOOKUP_IDX("G", 2, "cs", 2, GPIO_ACTIVE_LOW),
-		{ },
-	},
-};
-
-static struct ep93xx_spi_info vision_spi_master __initdata = {
-	.use_dma	= 1,
-};
-
-/*************************************************************************
- * I2S Audio
- *************************************************************************/
-static struct platform_device vision_audio_device = {
-	.name		= "edb93xx-audio",
-	.id		= -1,
-};
-
-static void __init vision_register_i2s(void)
-{
-	ep93xx_register_i2s();
-	platform_device_register(&vision_audio_device);
-}
-
-/*************************************************************************
- * Machine Initialization
- *************************************************************************/
-static void __init vision_init_machine(void)
-{
-	ep93xx_init_devices();
-	ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_64M);
-	ep93xx_register_eth(&vision_eth_data, 1);
-	ep93xx_register_fb(&ep93xxfb_info);
-	ep93xx_register_pwm(1, 0);
-
-	/*
-	 * Request the gpio expander's interrupt gpio line now to prevent
-	 * the kernel from doing a WARN in gpiolib:gpio_ensure_requested().
-	 */
-	if (gpio_request_one(EP93XX_GPIO_LINE_F(7), GPIOF_IN, "pca9539:74"))
-		pr_warn("cannot request interrupt gpio for pca9539:74\n");
-
-	vision_i2c_info[1].irq = gpio_to_irq(EP93XX_GPIO_LINE_F(7));
-
-	ep93xx_register_i2c(vision_i2c_info,
-				ARRAY_SIZE(vision_i2c_info));
-	gpiod_add_lookup_table(&vision_spi_cs4271_gpio_table);
-	gpiod_add_lookup_table(&vision_spi_mmc_gpio_table);
-	gpiod_add_lookup_table(&vision_spi_cs_gpio_table);
-	ep93xx_register_spi(&vision_spi_master, vision_spi_board_info,
-				ARRAY_SIZE(vision_spi_board_info));
-	vision_register_i2s();
-}
-
-MACHINE_START(VISION_EP9307, "Vision Engraving Systems EP9307")
-	/* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
-	.atag_offset	= 0x100,
-	.nr_irqs	= NR_EP93XX_IRQS + EP93XX_BOARD_IRQS,
-	.map_io		= vision_map_io,
-	.init_irq	= ep93xx_init_irq,
-	.init_time	= ep93xx_timer_init,
-	.init_machine	= vision_init_machine,
-	.restart	= ep93xx_restart,
-MACHINE_END

arch/arm/mm/alignment.c

@@ -22,7 +22,7 @@
 
 #include <asm/cp15.h>
 #include <asm/system_info.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
 #include <asm/opcodes.h>
 
 #include "fault.h"

arch/arm64/crypto/aes-ce-ccm-glue.c

@@ -9,7 +9,7 @@
  */
 
 #include <asm/neon.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
 #include <crypto/aes.h>
 #include <crypto/scatterwalk.h>
 #include <crypto/internal/aead.h>

arch/arm64/crypto/aes-ce-glue.c

@@ -7,7 +7,7 @@
 
 #include <asm/neon.h>
 #include <asm/simd.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
 #include <crypto/aes.h>
 #include <crypto/algapi.h>
 #include <crypto/internal/simd.h>

arch/arm64/crypto/ghash-ce-glue.c

@@ -7,7 +7,7 @@
 
 #include <asm/neon.h>
 #include <asm/simd.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
 #include <crypto/aes.h>
 #include <crypto/gcm.h>
 #include <crypto/algapi.h>

arch/arm64/crypto/poly1305-glue.c

@@ -8,7 +8,7 @@
 #include <asm/hwcap.h>
 #include <asm/neon.h>
 #include <asm/simd.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
 #include <crypto/algapi.h>
 #include <crypto/internal/hash.h>
 #include <crypto/internal/poly1305.h>

arch/arm64/crypto/sha1-ce-glue.c

@@ -7,7 +7,7 @@
 
 #include <asm/neon.h>
 #include <asm/simd.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
 #include <crypto/internal/hash.h>
 #include <crypto/internal/simd.h>
 #include <crypto/sha1.h>

arch/arm64/crypto/sha2-ce-glue.c

@@ -7,7 +7,7 @@
 
 #include <asm/neon.h>
 #include <asm/simd.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
 #include <crypto/internal/hash.h>
 #include <crypto/internal/simd.h>
 #include <crypto/sha2.h>

arch/arm64/crypto/sha3-ce-glue.c

@@ -12,7 +12,7 @@
 #include <asm/hwcap.h>
 #include <asm/neon.h>
 #include <asm/simd.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
 #include <crypto/internal/hash.h>
 #include <crypto/internal/simd.h>
 #include <crypto/sha3.h>

arch/arm64/crypto/sha512-ce-glue.c

@@ -11,7 +11,7 @@
 
 #include <asm/neon.h>
 #include <asm/simd.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
 #include <crypto/internal/hash.h>
 #include <crypto/internal/simd.h>
 #include <crypto/sha2.h>

arch/arm64/crypto/sm3-ce-glue.c

@@ -7,7 +7,7 @@
 
 #include <asm/neon.h>
 #include <asm/simd.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
 #include <crypto/internal/hash.h>
 #include <crypto/internal/simd.h>
 #include <crypto/sm3.h>

arch/arm64/crypto/sm3-neon-glue.c

@@ -7,7 +7,7 @@
 
 #include <asm/neon.h>
 #include <asm/simd.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
 #include <crypto/internal/hash.h>
 #include <crypto/internal/simd.h>
 #include <crypto/sm3.h>

arch/arm64/kernel/vmlinux.lds.S

@@ -264,8 +264,7 @@ SECTIONS
 		EXIT_DATA
 	}
 
-	RUNTIME_CONST(shift, d_hash_shift)
-	RUNTIME_CONST(ptr, dentry_hashtable)
+	RUNTIME_CONST_VARIABLES
 
 	PERCPU_SECTION(L1_CACHE_BYTES)
 	HYPERVISOR_PERCPU_SECTION

arch/arm64/kvm/arm.c

@@ -2164,7 +2164,7 @@ static void cpu_hyp_uninit(void *discard)
 	}
 }
 
-int kvm_arch_hardware_enable(void)
+int kvm_arch_enable_virtualization_cpu(void)
 {
 	/*
 	 * Most calls to this function are made with migration
@@ -2184,7 +2184,7 @@ int kvm_arch_hardware_enable(void)
 	return 0;
 }
 
-void kvm_arch_hardware_disable(void)
+void kvm_arch_disable_virtualization_cpu(void)
 {
 	kvm_timer_cpu_down();
 	kvm_vgic_cpu_down();
@@ -2380,7 +2380,7 @@ static int __init do_pkvm_init(u32 hyp_va_bits)
 
 	/*
 	 * The stub hypercalls are now disabled, so set our local flag to
-	 * prevent a later re-init attempt in kvm_arch_hardware_enable().
+	 * prevent a later re-init attempt in kvm_arch_enable_virtualization_cpu().
 	 */
 	__this_cpu_write(kvm_hyp_initialized, 1);
 	preempt_enable();

arch/loongarch/Kconfig

@@ -25,6 +25,8 @@ config LOONGARCH
 	select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE
 	select ARCH_HAS_PTE_DEVMAP
 	select ARCH_HAS_PTE_SPECIAL
+	select ARCH_HAS_SET_MEMORY
+	select ARCH_HAS_SET_DIRECT_MAP
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 	select ARCH_INLINE_READ_LOCK if !PREEMPTION
 	select ARCH_INLINE_READ_LOCK_BH if !PREEMPTION
@@ -82,6 +84,7 @@ config LOONGARCH
 	select GENERIC_CMOS_UPDATE
 	select GENERIC_CPU_AUTOPROBE
 	select GENERIC_CPU_DEVICES
+	select GENERIC_CPU_VULNERABILITIES
 	select GENERIC_ENTRY
 	select GENERIC_GETTIMEOFDAY
 	select GENERIC_IOREMAP if !ARCH_IOREMAP
@@ -147,7 +150,7 @@ config LOONGARCH
 	select HAVE_LIVEPATCH
 	select HAVE_MOD_ARCH_SPECIFIC
 	select HAVE_NMI
-	select HAVE_OBJTOOL if AS_HAS_EXPLICIT_RELOCS && AS_HAS_THIN_ADD_SUB && !CC_IS_CLANG
+	select HAVE_OBJTOOL if AS_HAS_EXPLICIT_RELOCS && AS_HAS_THIN_ADD_SUB
 	select HAVE_PCI
 	select HAVE_PERF_EVENTS
 	select HAVE_PERF_REGS
@@ -267,7 +270,7 @@ config AS_HAS_FCSR_CLASS
 	def_bool $(as-instr,movfcsr2gr \$t0$(comma)\$fcsr0)
 
 config AS_HAS_THIN_ADD_SUB
-	def_bool $(cc-option,-Wa$(comma)-mthin-add-sub)
+	def_bool $(cc-option,-Wa$(comma)-mthin-add-sub) || AS_IS_LLVM
 
 config AS_HAS_LSX_EXTENSION
 	def_bool $(as-instr,vld \$vr0$(comma)\$a0$(comma)0)

arch/loongarch/crypto/crc32-loongarch.c

@@ -13,7 +13,7 @@
 #include <crypto/internal/hash.h>
 
 #include <asm/cpu-features.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
 
 #define _CRC32(crc, value, size, type)			\
 do {							\

arch/loongarch/include/asm/atomic.h

@@ -15,6 +15,7 @@
 #define __LL		"ll.w	"
 #define __SC		"sc.w	"
 #define __AMADD		"amadd.w	"
+#define __AMOR		"amor.w		"
 #define __AMAND_DB	"amand_db.w	"
 #define __AMOR_DB	"amor_db.w	"
 #define __AMXOR_DB	"amxor_db.w	"
@@ -22,6 +23,7 @@
 #define __LL		"ll.d	"
 #define __SC		"sc.d	"
 #define __AMADD		"amadd.d	"
+#define __AMOR		"amor.d		"
 #define __AMAND_DB	"amand_db.d	"
 #define __AMOR_DB	"amor_db.d	"
 #define __AMXOR_DB	"amxor_db.d	"

arch/loongarch/include/asm/cpu-features.h

@@ -51,6 +51,7 @@
 #define cpu_has_lbt_mips	cpu_opt(LOONGARCH_CPU_LBT_MIPS)
 #define cpu_has_lbt		(cpu_has_lbt_x86|cpu_has_lbt_arm|cpu_has_lbt_mips)
 #define cpu_has_csr		cpu_opt(LOONGARCH_CPU_CSR)
+#define cpu_has_iocsr		cpu_opt(LOONGARCH_CPU_IOCSR)
 #define cpu_has_tlb		cpu_opt(LOONGARCH_CPU_TLB)
 #define cpu_has_watch		cpu_opt(LOONGARCH_CPU_WATCH)
 #define cpu_has_vint		cpu_opt(LOONGARCH_CPU_VINT)
@@ -65,6 +66,7 @@
 #define cpu_has_guestid		cpu_opt(LOONGARCH_CPU_GUESTID)
 #define cpu_has_hypervisor	cpu_opt(LOONGARCH_CPU_HYPERVISOR)
 #define cpu_has_ptw		cpu_opt(LOONGARCH_CPU_PTW)
+#define cpu_has_lspw		cpu_opt(LOONGARCH_CPU_LSPW)
 #define cpu_has_avecint		cpu_opt(LOONGARCH_CPU_AVECINT)
 
 #endif /* __ASM_CPU_FEATURES_H */

arch/loongarch/include/asm/cpu.h

@@ -87,19 +87,21 @@ enum cpu_type_enum {
 #define CPU_FEATURE_LBT_MIPS		12	/* CPU has MIPS Binary Translation */
 #define CPU_FEATURE_TLB			13	/* CPU has TLB */
 #define CPU_FEATURE_CSR			14	/* CPU has CSR */
-#define CPU_FEATURE_WATCH		15	/* CPU has watchpoint registers */
-#define CPU_FEATURE_VINT		16	/* CPU has vectored interrupts */
-#define CPU_FEATURE_CSRIPI		17	/* CPU has CSR-IPI */
-#define CPU_FEATURE_EXTIOI		18	/* CPU has EXT-IOI */
-#define CPU_FEATURE_PREFETCH		19	/* CPU has prefetch instructions */
-#define CPU_FEATURE_PMP			20	/* CPU has perfermance counter */
-#define CPU_FEATURE_SCALEFREQ		21	/* CPU supports cpufreq scaling */
-#define CPU_FEATURE_FLATMODE		22	/* CPU has flat mode */
-#define CPU_FEATURE_EIODECODE		23	/* CPU has EXTIOI interrupt pin decode mode */
-#define CPU_FEATURE_GUESTID		24	/* CPU has GuestID feature */
-#define CPU_FEATURE_HYPERVISOR		25	/* CPU has hypervisor (running in VM) */
-#define CPU_FEATURE_PTW			26	/* CPU has hardware page table walker */
-#define CPU_FEATURE_AVECINT		27	/* CPU has avec interrupt */
+#define CPU_FEATURE_IOCSR		15	/* CPU has IOCSR */
+#define CPU_FEATURE_WATCH		16	/* CPU has watchpoint registers */
+#define CPU_FEATURE_VINT		17	/* CPU has vectored interrupts */
+#define CPU_FEATURE_CSRIPI		18	/* CPU has CSR-IPI */
+#define CPU_FEATURE_EXTIOI		19	/* CPU has EXT-IOI */
+#define CPU_FEATURE_PREFETCH		20	/* CPU has prefetch instructions */
+#define CPU_FEATURE_PMP			21	/* CPU has perfermance counter */
+#define CPU_FEATURE_SCALEFREQ		22	/* CPU supports cpufreq scaling */
+#define CPU_FEATURE_FLATMODE		23	/* CPU has flat mode */
+#define CPU_FEATURE_EIODECODE		24	/* CPU has EXTIOI interrupt pin decode mode */
+#define CPU_FEATURE_GUESTID		25	/* CPU has GuestID feature */
+#define CPU_FEATURE_HYPERVISOR		26	/* CPU has hypervisor (running in VM) */
+#define CPU_FEATURE_PTW			27	/* CPU has hardware page table walker */
+#define CPU_FEATURE_LSPW		28	/* CPU has LSPW (lddir/ldpte instructions) */
+#define CPU_FEATURE_AVECINT		29	/* CPU has AVEC interrupt */
 
 #define LOONGARCH_CPU_CPUCFG		BIT_ULL(CPU_FEATURE_CPUCFG)
 #define LOONGARCH_CPU_LAM		BIT_ULL(CPU_FEATURE_LAM)
@@ -115,6 +117,7 @@ enum cpu_type_enum {
 #define LOONGARCH_CPU_LBT_ARM		BIT_ULL(CPU_FEATURE_LBT_ARM)
 #define LOONGARCH_CPU_LBT_MIPS		BIT_ULL(CPU_FEATURE_LBT_MIPS)
 #define LOONGARCH_CPU_TLB		BIT_ULL(CPU_FEATURE_TLB)
+#define LOONGARCH_CPU_IOCSR		BIT_ULL(CPU_FEATURE_IOCSR)
 #define LOONGARCH_CPU_CSR		BIT_ULL(CPU_FEATURE_CSR)
 #define LOONGARCH_CPU_WATCH		BIT_ULL(CPU_FEATURE_WATCH)
 #define LOONGARCH_CPU_VINT		BIT_ULL(CPU_FEATURE_VINT)
@@ -128,6 +131,7 @@ enum cpu_type_enum {
 #define LOONGARCH_CPU_GUESTID		BIT_ULL(CPU_FEATURE_GUESTID)
 #define LOONGARCH_CPU_HYPERVISOR	BIT_ULL(CPU_FEATURE_HYPERVISOR)
 #define LOONGARCH_CPU_PTW		BIT_ULL(CPU_FEATURE_PTW)
+#define LOONGARCH_CPU_LSPW		BIT_ULL(CPU_FEATURE_LSPW)
 #define LOONGARCH_CPU_AVECINT		BIT_ULL(CPU_FEATURE_AVECINT)
 
 #endif /* _ASM_CPU_H */

arch/loongarch/include/asm/loongarch.h

@@ -62,6 +62,7 @@
 #define LOONGARCH_CPUCFG1		0x1
 #define  CPUCFG1_ISGR32			BIT(0)
 #define  CPUCFG1_ISGR64			BIT(1)
+#define  CPUCFG1_ISA			GENMASK(1, 0)
 #define  CPUCFG1_PAGING			BIT(2)
 #define  CPUCFG1_IOCSR			BIT(3)
 #define  CPUCFG1_PABITS			GENMASK(11, 4)

arch/loongarch/include/asm/mmu_context.h

@@ -49,12 +49,12 @@ static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
 
 /* Normal, classic get_new_mmu_context */
 static inline void
-get_new_mmu_context(struct mm_struct *mm, unsigned long cpu)
+get_new_mmu_context(struct mm_struct *mm, unsigned long cpu, bool *need_flush)
 {
 	u64 asid = asid_cache(cpu);
 
 	if (!((++asid) & cpu_asid_mask(&cpu_data[cpu])))
-		local_flush_tlb_user();	/* start new asid cycle */
+		*need_flush = true;	/* start new asid cycle */
 
 	cpu_context(cpu, mm) = asid_cache(cpu) = asid;
 }
@@ -74,21 +74,34 @@ init_new_context(struct task_struct *tsk, struct mm_struct *mm)
 	return 0;
 }
 
+static inline void atomic_update_pgd_asid(unsigned long asid, unsigned long pgdl)
+{
+	__asm__ __volatile__(
+	"csrwr %[pgdl_val], %[pgdl_reg] \n\t"
+	"csrwr %[asid_val], %[asid_reg] \n\t"
+	: [asid_val] "+r" (asid), [pgdl_val] "+r" (pgdl)
+	: [asid_reg] "i" (LOONGARCH_CSR_ASID), [pgdl_reg] "i" (LOONGARCH_CSR_PGDL)
+	: "memory"
+	);
+}
+
 static inline void switch_mm_irqs_off(struct mm_struct *prev, struct mm_struct *next,
 				      struct task_struct *tsk)
 {
+	bool need_flush = false;
 	unsigned int cpu = smp_processor_id();
 
 	/* Check if our ASID is of an older version and thus invalid */
 	if (!asid_valid(next, cpu))
-		get_new_mmu_context(next, cpu);
-
-	write_csr_asid(cpu_asid(cpu, next));
+		get_new_mmu_context(next, cpu, &need_flush);
 
 	if (next != &init_mm)
-		csr_write64((unsigned long)next->pgd, LOONGARCH_CSR_PGDL);
+		atomic_update_pgd_asid(cpu_asid(cpu, next), (unsigned long)next->pgd);
 	else
-		csr_write64((unsigned long)invalid_pg_dir, LOONGARCH_CSR_PGDL);
+		atomic_update_pgd_asid(cpu_asid(cpu, next), (unsigned long)invalid_pg_dir);
+
+	if (need_flush)
+		local_flush_tlb_user(); /* Flush tlb after update ASID */
 
 	/*
 	 * Mark current->active_mm as not "active" anymore.
@@ -135,9 +148,15 @@ drop_mmu_context(struct mm_struct *mm, unsigned int cpu)
 	asid = read_csr_asid() & cpu_asid_mask(&current_cpu_data);
 
 	if (asid == cpu_asid(cpu, mm)) {
+		bool need_flush = false;
+
 		if (!current->mm || (current->mm == mm)) {
-			get_new_mmu_context(mm, cpu);
+			get_new_mmu_context(mm, cpu, &need_flush);
+
 			write_csr_asid(cpu_asid(cpu, mm));
+			if (need_flush)
+				local_flush_tlb_user(); /* Flush tlb after update ASID */
+
 			goto out;
 		}
 	}

arch/loongarch/include/asm/percpu.h

@@ -68,75 +68,6 @@ PERCPU_OP(and, and, &)
 PERCPU_OP(or, or, |)
 #undef PERCPU_OP
 
-static __always_inline unsigned long __percpu_read(void __percpu *ptr, int size)
-{
-	unsigned long ret;
-
-	switch (size) {
-	case 1:
-		__asm__ __volatile__ ("ldx.b %[ret], $r21, %[ptr]	\n"
-		: [ret] "=&r"(ret)
-		: [ptr] "r"(ptr)
-		: "memory");
-		break;
-	case 2:
-		__asm__ __volatile__ ("ldx.h %[ret], $r21, %[ptr]	\n"
-		: [ret] "=&r"(ret)
-		: [ptr] "r"(ptr)
-		: "memory");
-		break;
-	case 4:
-		__asm__ __volatile__ ("ldx.w %[ret], $r21, %[ptr]	\n"
-		: [ret] "=&r"(ret)
-		: [ptr] "r"(ptr)
-		: "memory");
-		break;
-	case 8:
-		__asm__ __volatile__ ("ldx.d %[ret], $r21, %[ptr]	\n"
-		: [ret] "=&r"(ret)
-		: [ptr] "r"(ptr)
-		: "memory");
-		break;
-	default:
-		ret = 0;
-		BUILD_BUG();
-	}
-
-	return ret;
-}
-
-static __always_inline void __percpu_write(void __percpu *ptr, unsigned long val, int size)
-{
-	switch (size) {
-	case 1:
-		__asm__ __volatile__("stx.b %[val], $r21, %[ptr]	\n"
-		:
-		: [val] "r" (val), [ptr] "r" (ptr)
-		: "memory");
-		break;
-	case 2:
-		__asm__ __volatile__("stx.h %[val], $r21, %[ptr]	\n"
-		:
-		: [val] "r" (val), [ptr] "r" (ptr)
-		: "memory");
-		break;
-	case 4:
-		__asm__ __volatile__("stx.w %[val], $r21, %[ptr]	\n"
-		:
-		: [val] "r" (val), [ptr] "r" (ptr)
-		: "memory");
-		break;
-	case 8:
-		__asm__ __volatile__("stx.d %[val], $r21, %[ptr]	\n"
-		:
-		: [val] "r" (val), [ptr] "r" (ptr)
-		: "memory");
-		break;
-	default:
-		BUILD_BUG();
-	}
-}
-
 static __always_inline unsigned long __percpu_xchg(void *ptr, unsigned long val, int size)
 {
 	switch (size) {
@@ -157,6 +88,33 @@ static __always_inline unsigned long __percpu_xchg(void *ptr, unsigned long val,
 	return 0;
 }
 
+#define __pcpu_op_1(op)		op ".b "
+#define __pcpu_op_2(op)		op ".h "
+#define __pcpu_op_4(op)		op ".w "
+#define __pcpu_op_8(op)		op ".d "
+
+#define _percpu_read(size, _pcp)					\
+({									\
+	typeof(_pcp) __pcp_ret;						\
+									\
+	__asm__ __volatile__(						\
+		__pcpu_op_##size("ldx") "%[ret], $r21, %[ptr]	\n"	\
+		: [ret] "=&r"(__pcp_ret)				\
+		: [ptr] "r"(&(_pcp))					\
+		: "memory");						\
+									\
+	__pcp_ret;							\
+})
+
+#define _percpu_write(size, _pcp, _val)					\
+do {									\
+	__asm__ __volatile__(						\
+		__pcpu_op_##size("stx") "%[val], $r21, %[ptr]	\n"	\
+		:							\
+		: [val] "r"(_val), [ptr] "r"(&(_pcp))			\
+		: "memory");						\
+} while (0)
+
 /* this_cpu_cmpxchg */
 #define _protect_cmpxchg_local(pcp, o, n)			\
 ({								\
@@ -167,18 +125,6 @@ static __always_inline unsigned long __percpu_xchg(void *ptr, unsigned long val,
 	__ret;							\
 })
 
-#define _percpu_read(pcp)						\
-({									\
-	typeof(pcp) __retval;						\
-	__retval = (typeof(pcp))__percpu_read(&(pcp), sizeof(pcp));	\
-	__retval;							\
-})
-
-#define _percpu_write(pcp, val)						\
-do {									\
-	__percpu_write(&(pcp), (unsigned long)(val), sizeof(pcp));	\
-} while (0)								\
-
 #define _pcp_protect(operation, pcp, val)			\
 ({								\
 	typeof(pcp) __retval;					\
@@ -215,15 +161,15 @@ do {									\
 #define this_cpu_or_4(pcp, val) _percpu_or(pcp, val)
 #define this_cpu_or_8(pcp, val) _percpu_or(pcp, val)
 
-#define this_cpu_read_1(pcp) _percpu_read(pcp)
-#define this_cpu_read_2(pcp) _percpu_read(pcp)
-#define this_cpu_read_4(pcp) _percpu_read(pcp)
-#define this_cpu_read_8(pcp) _percpu_read(pcp)
+#define this_cpu_read_1(pcp) _percpu_read(1, pcp)
+#define this_cpu_read_2(pcp) _percpu_read(2, pcp)
+#define this_cpu_read_4(pcp) _percpu_read(4, pcp)
+#define this_cpu_read_8(pcp) _percpu_read(8, pcp)
 
-#define this_cpu_write_1(pcp, val) _percpu_write(pcp, val)
-#define this_cpu_write_2(pcp, val) _percpu_write(pcp, val)
-#define this_cpu_write_4(pcp, val) _percpu_write(pcp, val)
-#define this_cpu_write_8(pcp, val) _percpu_write(pcp, val)
+#define this_cpu_write_1(pcp, val) _percpu_write(1, pcp, val)
+#define this_cpu_write_2(pcp, val) _percpu_write(2, pcp, val)
+#define this_cpu_write_4(pcp, val) _percpu_write(4, pcp, val)
+#define this_cpu_write_8(pcp, val) _percpu_write(8, pcp, val)
 
 #define this_cpu_xchg_1(pcp, val) _percpu_xchg(pcp, val)
 #define this_cpu_xchg_2(pcp, val) _percpu_xchg(pcp, val)

arch/loongarch/include/asm/pgtable.h

@@ -331,29 +331,23 @@ static inline void set_pte(pte_t *ptep, pte_t pteval)
 		 * Make sure the buddy is global too (if it's !none,
 		 * it better already be global)
 		 */
+		if (pte_none(ptep_get(buddy))) {
 #ifdef CONFIG_SMP
-		/*
-		 * For SMP, multiple CPUs can race, so we need to do
-		 * this atomically.
-		 */
-		unsigned long page_global = _PAGE_GLOBAL;
-		unsigned long tmp;
+			/*
+			 * For SMP, multiple CPUs can race, so we need
+			 * to do this atomically.
+			 */
+			__asm__ __volatile__(
+			__AMOR "$zero, %[global], %[buddy] \n"
+			: [buddy] "+ZB" (buddy->pte)
+			: [global] "r" (_PAGE_GLOBAL)
+			: "memory");
 
-		__asm__ __volatile__ (
-		"1:"	__LL	"%[tmp], %[buddy]		\n"
-		"	bnez	%[tmp], 2f			\n"
-		"	 or	%[tmp], %[tmp], %[global]	\n"
-			__SC	"%[tmp], %[buddy]		\n"
-		"	beqz	%[tmp], 1b			\n"
-		"	nop					\n"
-		"2:						\n"
-		__WEAK_LLSC_MB
-		: [buddy] "+m" (buddy->pte), [tmp] "=&r" (tmp)
-		: [global] "r" (page_global));
+			DBAR(0b11000); /* o_wrw = 0b11000 */
 #else /* !CONFIG_SMP */
-		if (pte_none(ptep_get(buddy)))
 			WRITE_ONCE(*buddy, __pte(pte_val(ptep_get(buddy)) | _PAGE_GLOBAL));
 #endif /* CONFIG_SMP */
+		}
 	}
 }
 

arch/loongarch/include/asm/set_memory.h

@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2024 Loongson Technology Corporation Limited
+ */
+
+#ifndef _ASM_LOONGARCH_SET_MEMORY_H
+#define _ASM_LOONGARCH_SET_MEMORY_H
+
+/*
+ * Functions to change memory attributes.
+ */
+int set_memory_x(unsigned long addr, int numpages);
+int set_memory_nx(unsigned long addr, int numpages);
+int set_memory_ro(unsigned long addr, int numpages);
+int set_memory_rw(unsigned long addr, int numpages);
+
+bool kernel_page_present(struct page *page);
+int set_direct_map_default_noflush(struct page *page);
+int set_direct_map_invalid_noflush(struct page *page);
+
+#endif /* _ASM_LOONGARCH_SET_MEMORY_H */

arch/loongarch/include/uapi/asm/hwcap.h

@@ -17,5 +17,6 @@
 #define HWCAP_LOONGARCH_LBT_ARM		(1 << 11)
 #define HWCAP_LOONGARCH_LBT_MIPS	(1 << 12)
 #define HWCAP_LOONGARCH_PTW		(1 << 13)
+#define HWCAP_LOONGARCH_LSPW		(1 << 14)
 
 #endif /* _UAPI_ASM_HWCAP_H */

arch/loongarch/include/uapi/asm/sigcontext.h

@@ -9,7 +9,6 @@
 #define _UAPI_ASM_SIGCONTEXT_H
 
 #include <linux/types.h>
-#include <linux/posix_types.h>
 
 /* FP context was used */
 #define SC_USED_FP		(1 << 0)