Linux 3.7-rc7

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Merge tag 'v3.7-rc7' into asoc-ux500

Linux 3.7-rc7

CREDITS

@@ -1823,6 +1823,11 @@ S: Kattreinstr 38
 S: D-64295
 S: Germany
 
+N: Avi Kivity
+E: avi.kivity@gmail.com
+D: Kernel-based Virtual Machine (KVM)
+S: Ra'annana, Israel
+
 N: Andi Kleen
 E: andi@firstfloor.org
 U: http://www.halobates.de

Documentation/00-INDEX

@@ -210,6 +210,8 @@ local_ops.txt
 	- semantics and behavior of local atomic operations.
 lockdep-design.txt
 	- documentation on the runtime locking correctness validator.
+lockup-watchdogs.txt
+	- info on soft and hard lockup detectors (aka nmi_watchdog).
 logo.gif
 	- full colour GIF image of Linux logo (penguin - Tux).
 logo.txt
@@ -240,8 +242,6 @@ netlabel/
 	- directory with information on the NetLabel subsystem.
 networking/
 	- directory with info on various aspects of networking with Linux.
-nmi_watchdog.txt
-	- info on NMI watchdog for SMP systems.
 nommu-mmap.txt
 	- documentation about no-mmu memory mapping support.
 numastat.txt

Documentation/arm64/memory.txt

@@ -27,17 +27,17 @@ Start			End			Size		Use
 -----------------------------------------------------------------------
 0000000000000000	0000007fffffffff	 512GB		user
 
-ffffff8000000000	ffffffbbfffcffff	~240GB		vmalloc
+ffffff8000000000	ffffffbbfffeffff	~240GB		vmalloc
 
-ffffffbbfffd0000	ffffffbcfffdffff	  64KB		[guard page]
+ffffffbbffff0000	ffffffbbffffffff	  64KB		[guard page]
-
-ffffffbbfffe0000	ffffffbcfffeffff	  64KB		PCI I/O space
-
-ffffffbbffff0000	ffffffbcffffffff	  64KB		[guard page]
 
 ffffffbc00000000	ffffffbdffffffff	   8GB		vmemmap
 
-ffffffbe00000000	ffffffbffbffffff	  ~8GB		[guard, future vmmemap]
+ffffffbe00000000	ffffffbffbbfffff	  ~8GB		[guard, future vmmemap]
+
+ffffffbffbe00000	ffffffbffbe0ffff	  64KB		PCI I/O space
+
+ffffffbbffff0000	ffffffbcffffffff	  ~2MB		[guard]
 
 ffffffbffc000000	ffffffbfffffffff	  64MB		modules
 

Documentation/cgroups/memory.txt

@@ -466,6 +466,10 @@ Note:
 5.3 swappiness
 
 Similar to /proc/sys/vm/swappiness, but affecting a hierarchy of groups only.
+Please note that unlike the global swappiness, memcg knob set to 0
+really prevents from any swapping even if there is a swap storage
+available. This might lead to memcg OOM killer if there are no file
+pages to reclaim.
 
 Following cgroups' swappiness can't be changed.
 - root cgroup (uses /proc/sys/vm/swappiness).

Documentation/devicetree/bindings/arm/atmel-at91.txt

@@ -8,7 +8,7 @@ PIT Timer required properties:
   shared across all System Controller members.
 
 TC/TCLIB Timer required properties:
-- compatible: Should be "atmel,<chip>-pit".
+- compatible: Should be "atmel,<chip>-tcb".
   <chip> can be "at91rm9200" or "at91sam9x5"
 - reg: Should contain registers location and length
 - interrupts: Should contain all interrupts for the TC block

Documentation/devicetree/bindings/input/touchscreen/egalax-ts.txt

@@ -0,0 +1,19 @@
+* EETI eGalax Multiple Touch Controller
+
+Required properties:
+- compatible: must be "eeti,egalax_ts"
+- reg: i2c slave address
+- interrupt-parent: the phandle for the interrupt controller
+- interrupts: touch controller interrupt
+- wakeup-gpios: the gpio pin to be used for waking up the controller
+  as well as uased as irq pin
+
+Example:
+
+	egalax_ts@04 {
+		compatible = "eeti,egalax_ts";
+		reg = <0x04>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <9 2>;
+		wakeup-gpios = <&gpio1 9 0>;
+	};

Documentation/devicetree/bindings/net/mdio-gpio.txt

@@ -8,9 +8,16 @@ gpios property as described in section VIII.1 in the following order:
 
 MDC, MDIO.
 
+Note: Each gpio-mdio bus should have an alias correctly numbered in "aliases"
+node.
+
 Example:
 
-mdio {
+aliases {
+	mdio-gpio0 = <&mdio0>;
+};
+
+mdio0: mdio {
 	compatible = "virtual,mdio-gpio";
 	#address-cells = <1>;
 	#size-cells = <0>;

Documentation/devicetree/bindings/pinctrl/nvidia,tegra20-pinmux.txt

@@ -93,7 +93,7 @@ Valid values for pin and group names are:
 
     With some exceptions, these support nvidia,high-speed-mode,
     nvidia,schmitt, nvidia,low-power-mode, nvidia,pull-down-strength,
-    nvidia,pull-up-strength, nvidia,slew_rate-rising, nvidia,slew_rate-falling.
+    nvidia,pull-up-strength, nvidia,slew-rate-rising, nvidia,slew-rate-falling.
 
     drive_ao1, drive_ao2, drive_at1, drive_at2, drive_cdev1, drive_cdev2,
     drive_csus, drive_dap1, drive_dap2, drive_dap3, drive_dap4, drive_dbg,

Documentation/devicetree/bindings/pinctrl/nvidia,tegra30-pinmux.txt

@@ -83,7 +83,7 @@ Valid values for pin and group names are:
   drive groups:
 
     These all support nvidia,pull-down-strength, nvidia,pull-up-strength,
-    nvidia,slew_rate-rising, nvidia,slew_rate-falling. Most but not all
+    nvidia,slew-rate-rising, nvidia,slew-rate-falling. Most but not all
     support nvidia,high-speed-mode, nvidia,schmitt, nvidia,low-power-mode.
 
     ao1, ao2, at1, at2, at3, at4, at5, cdev1, cdev2, cec, crt, csus, dap1,

Documentation/filesystems/proc.txt

@@ -33,7 +33,7 @@ Table of Contents
   2	Modifying System Parameters
 
   3	Per-Process Parameters
-  3.1	/proc/<pid>/oom_score_adj - Adjust the oom-killer
+  3.1	/proc/<pid>/oom_adj & /proc/<pid>/oom_score_adj - Adjust the oom-killer
 								score
   3.2	/proc/<pid>/oom_score - Display current oom-killer score
   3.3	/proc/<pid>/io - Display the IO accounting fields
@@ -1320,10 +1320,10 @@ of the kernel.
 CHAPTER 3: PER-PROCESS PARAMETERS
 ------------------------------------------------------------------------------
 
-3.1 /proc/<pid>/oom_score_adj- Adjust the oom-killer score
+3.1 /proc/<pid>/oom_adj & /proc/<pid>/oom_score_adj- Adjust the oom-killer score
 --------------------------------------------------------------------------------
 
-This file can be used to adjust the badness heuristic used to select which
+These file can be used to adjust the badness heuristic used to select which
 process gets killed in out of memory conditions.
 
 The badness heuristic assigns a value to each candidate task ranging from 0
@@ -1361,6 +1361,12 @@ same system, cpuset, mempolicy, or memory controller resources to use at least
 equivalent to discounting 50% of the task's allowed memory from being considered
 as scoring against the task.
 
+For backwards compatibility with previous kernels, /proc/<pid>/oom_adj may also
+be used to tune the badness score.  Its acceptable values range from -16
+(OOM_ADJUST_MIN) to +15 (OOM_ADJUST_MAX) and a special value of -17
+(OOM_DISABLE) to disable oom killing entirely for that task.  Its value is
+scaled linearly with /proc/<pid>/oom_score_adj.
+
 The value of /proc/<pid>/oom_score_adj may be reduced no lower than the last
 value set by a CAP_SYS_RESOURCE process. To reduce the value any lower
 requires CAP_SYS_RESOURCE.
@@ -1375,7 +1381,9 @@ minimal amount of work.
 -------------------------------------------------------------
 
 This file can be used to check the current score used by the oom-killer is for
-any given <pid>.
+any given <pid>. Use it together with /proc/<pid>/oom_score_adj to tune which
+process should be killed in an out-of-memory situation.
+
 
 3.3  /proc/<pid>/io - Display the IO accounting fields
 -------------------------------------------------------

Documentation/firmware_class/README

@@ -18,32 +18,40 @@
  High level behavior (mixed):
  ============================
 
- kernel(driver): calls request_firmware(&fw_entry, $FIRMWARE, device)
+ 1), kernel(driver):
+	- calls request_firmware(&fw_entry, $FIRMWARE, device)
+	- kernel searchs the fimware image with name $FIRMWARE directly
+	in the below search path of root filesystem:
+		"/lib/firmware/updates/" UTS_RELEASE,
+		"/lib/firmware/updates",
+		"/lib/firmware/" UTS_RELEASE,
+		"/lib/firmware"
+	- If found, goto 7), else goto 2)
 
- userspace:
+ 2), userspace:
  	- /sys/class/firmware/xxx/{loading,data} appear.
 	- hotplug gets called with a firmware identifier in $FIRMWARE
 	  and the usual hotplug environment.
 		- hotplug: echo 1 > /sys/class/firmware/xxx/loading
 
- kernel: Discard any previous partial load.
+ 3), kernel: Discard any previous partial load.
 
- userspace:
+ 4), userspace:
 		- hotplug: cat appropriate_firmware_image > \
 					/sys/class/firmware/xxx/data
 
- kernel: grows a buffer in PAGE_SIZE increments to hold the image as it
+ 5), kernel: grows a buffer in PAGE_SIZE increments to hold the image as it
 	 comes in.
 
- userspace:
+ 6), userspace:
 		- hotplug: echo 0 > /sys/class/firmware/xxx/loading
 
- kernel: request_firmware() returns and the driver has the firmware
+ 7), kernel: request_firmware() returns and the driver has the firmware
 	 image in fw_entry->{data,size}. If something went wrong
 	 request_firmware() returns non-zero and fw_entry is set to
 	 NULL.
 
- kernel(driver): Driver code calls release_firmware(fw_entry) releasing
+ 8), kernel(driver): Driver code calls release_firmware(fw_entry) releasing
 		 the firmware image and any related resource.
 
  High level behavior (driver code):

Documentation/hwmon/fam15h_power

@@ -10,7 +10,7 @@ Supported chips:
   BIOS and Kernel Developer's Guide (BKDG) For AMD Family 15h Processors
     (not yet published)
 
-Author: Andreas Herrmann <andreas.herrmann3@amd.com>
+Author: Andreas Herrmann <herrmann.der.user@googlemail.com>
 
 Description
 -----------

Documentation/networking/netdev-features.txt

@@ -164,4 +164,4 @@ read the CRC recorded by the NIC on receipt of the packet.
 This requests that the NIC receive all possible frames, including errored
 frames (such as bad FCS, etc).  This can be helpful when sniffing a link with
 bad packets on it.  Some NICs may receive more packets if also put into normal
-PROMISC mdoe.
+PROMISC mode.

Documentation/networking/vxlan.txt

@@ -32,7 +32,7 @@ no entry is in the forwarding table.
   # ip link delete vxlan0
 
 3. Show vxlan info
-  # ip -d show vxlan0
+  # ip -d link show vxlan0
 
 It is possible to create, destroy and display the vxlan
 forwarding table using the new bridge command.
@@ -41,7 +41,7 @@ forwarding table using the new bridge command.
   # bridge fdb add to 00:17:42:8a:b4:05 dst 192.19.0.2 dev vxlan0
 
 2. Delete forwarding table entry
-  # bridge fdb delete 00:17:42:8a:b4:05
+  # bridge fdb delete 00:17:42:8a:b4:05 dev vxlan0
 
 3. Show forwarding table
   # bridge fdb show dev vxlan0

Documentation/zh_CN/IRQ.txt

@@ -0,0 +1,39 @@
+Chinese translated version of Documentation/IRQ.txt
+
+If you have any comment or update to the content, please contact the
+original document maintainer directly.  However, if you have a problem
+communicating in English you can also ask the Chinese maintainer for
+help.  Contact the Chinese maintainer if this translation is outdated
+or if there is a problem with the translation.
+
+Maintainer: Eric W. Biederman <ebiederman@xmission.com>
+Chinese maintainer: Fu Wei <tekkamanninja@gmail.com>
+---------------------------------------------------------------------
+Documentation/IRQ.txt 的中文翻译
+
+如果想评论或更新本文的内容，请直接联系原文档的维护者。如果你使用英文
+交流有困难的话，也可以向中文版维护者求助。如果本翻译更新不及时或者翻
+译存在问题，请联系中文版维护者。
+英文版维护者： Eric W. Biederman <ebiederman@xmission.com>
+中文版维护者： 傅炜 Fu Wei <tekkamanninja@gmail.com>
+中文版翻译者： 傅炜 Fu Wei <tekkamanninja@gmail.com>
+中文版校译者： 傅炜 Fu Wei <tekkamanninja@gmail.com>
+
+
+以下为正文
+---------------------------------------------------------------------
+何为 IRQ?
+
+一个 IRQ 是来自某个设备的一个中断请求。目前，它们可以来自一个硬件引脚，
+或来自一个数据包。多个设备可能连接到同个硬件引脚，从而共享一个 IRQ。
+
+一个 IRQ 编号是用于告知硬件中断源的内核标识。通常情况下，这是一个
+全局 irq_desc 数组的索引，但是除了在 linux/interrupt.h 中的实现，
+具体的细节是体系结构特定的。
+
+一个 IRQ 编号是设备上某个可能的中断源的枚举。通常情况下，枚举的编号是
+该引脚在系统内中断控制器的所有输入引脚中的编号。对于 ISA 总线中的情况，
+枚举的是在两个 i8259 中断控制器中 16 个输入引脚。
+
+架构可以对 IRQ 编号指定额外的含义，在硬件涉及任何手工配置的情况下，
+是被提倡的。ISA 的 IRQ 是一个分配这类额外含义的典型例子。

Documentation/zh_CN/arm64/booting.txt

@@ -0,0 +1,156 @@
+Chinese translated version of Documentation/arm64/booting.txt
+
+If you have any comment or update to the content, please contact the
+original document maintainer directly.  However, if you have a problem
+communicating in English you can also ask the Chinese maintainer for
+help.  Contact the Chinese maintainer if this translation is outdated
+or if there is a problem with the translation.
+
+Maintainer: Will Deacon <will.deacon@arm.com>
+Chinese maintainer: Fu Wei <tekkamanninja@gmail.com>
+---------------------------------------------------------------------
+Documentation/arm64/booting.txt 的中文翻译
+
+如果想评论或更新本文的内容，请直接联系原文档的维护者。如果你使用英文
+交流有困难的话，也可以向中文版维护者求助。如果本翻译更新不及时或者翻
+译存在问题，请联系中文版维护者。
+
+英文版维护者： Will Deacon <will.deacon@arm.com>
+中文版维护者： 傅炜  Fu Wei <tekkamanninja@gmail.com>
+中文版翻译者： 傅炜  Fu Wei <tekkamanninja@gmail.com>
+中文版校译者： 傅炜  Fu Wei <tekkamanninja@gmail.com>
+
+以下为正文
+---------------------------------------------------------------------
+			启动 AArch64 Linux
+			==================
+
+作者: Will Deacon <will.deacon@arm.com>
+日期: 2012 年 09 月 07 日
+
+本文档基于 Russell King 的 ARM 启动文档，且适用于所有公开发布的
+AArch64 Linux 内核代码。
+
+AArch64 异常模型由多个异常级别（EL0 - EL3）组成，对于 EL0 和 EL1
+异常级有对应的安全和非安全模式。EL2 是系统管理级，且仅存在于
+非安全模式下。EL3 是最高特权级，且仅存在于安全模式下。
+
+基于本文档的目的，我们将简单地使用‘引导装载程序’（‘boot loader’）
+这个术语来定义在将控制权交给 Linux 内核前 CPU 上执行的所有软件。
+这可能包含安全监控和系统管理代码，或者它可能只是一些用于准备最小启动
+环境的指令。
+
+基本上，引导装载程序（至少）应实现以下操作：
+
+1、设置和初始化 RAM
+2、设置设备树数据
+3、解压内核映像
+4、调用内核映像
+
+
+1、设置和初始化 RAM
+-----------------
+
+必要性: 强制
+
+引导装载程序应该找到并初始化系统中所有内核用于保持系统变量数据的 RAM。
+这个操作的执行是设备依赖的。（它可能使用内部算法来自动定位和计算所有
+RAM，或可能使用对这个设备已知的 RAM 信息，还可能使用任何引导装载程序
+设计者想到的匹配方法。）
+
+
+2、设置设备树数据
+---------------
+
+必要性: 强制
+
+设备树数据块（dtb）大小必须不大于 2 MB，且位于从内核映像起始算起第一个
+512MB 内的 2MB 边界上。这使得内核可以通过初始页表中的单个节描述符来
+映射此数据块。
+
+
+3、解压内核映像
+-------------
+
+必要性: 可选
+
+AArch64 内核当前没有提供自解压代码，因此如果使用了压缩内核映像文件
+（比如 Image.gz），则需要通过引导装载程序（使用 gzip 等）来进行解压。
+若引导装载程序没有实现这个需求，就要使用非压缩内核映像文件。
+
+
+4、调用内核映像
+-------------
+
+必要性: 强制
+
+已解压的内核映像包含一个 32 字节的头，内容如下：
+
+  u32 magic	= 0x14000008;	/* 跳转到 stext, 小端 */
+  u32 res0	= 0;		/* 保留 */
+  u64 text_offset;		/* 映像装载偏移 */
+  u64 res1	= 0;		/* 保留 */
+  u64 res2	= 0;		/* 保留 */
+
+映像必须位于系统 RAM 起始处的特定偏移（当前是 0x80000）。系统 RAM
+的起始地址必须是以 2MB 对齐的。
+
+在跳转入内核前，必须符合以下状态：
+
+- 停止所有 DMA 设备，这样内存数据就不会因为虚假网络包或磁盘数据而
+  被破坏。这可能可以节省你许多的调试时间。
+
+- 主 CPU 通用寄存器设置
+  x0 = 系统 RAM 中设备树数据块（dtb）的物理地址。
+  x1 = 0 (保留，将来可能使用)
+  x2 = 0 (保留，将来可能使用)
+  x3 = 0 (保留，将来可能使用)
+
+- CPU 模式
+  所有形式的中断必须在 PSTATE.DAIF 中被屏蔽（Debug、SError、IRQ
+  和 FIQ）。
+  CPU 必须处于 EL2（推荐，可访问虚拟化扩展）或非安全 EL1 模式下。
+
+- 高速缓存、MMU
+  MMU 必须关闭。
+  指令缓存开启或关闭都可以。
+  数据缓存必须关闭且无效。
+  外部高速缓存（如果存在）必须配置并禁用。
+
+- 架构计时器
+  CNTFRQ 必须设定为计时器的频率。
+  如果在 EL1 模式下进入内核，则 CNTHCTL_EL2 中的 EL1PCTEN (bit 0)
+  必须置位。
+
+- 一致性
+  通过内核启动的所有 CPU 在内核入口地址上必须处于相同的一致性域中。
+  这可能要根据具体实现来定义初始化过程，以使能每个CPU上对维护操作的
+  接收。
+
+- 系统寄存器
+  在进入内核映像的异常级中，所有构架中可写的系统寄存器必须通过软件
+  在一个更高的异常级别下初始化，以防止在 未知 状态下运行。
+
+引导装载程序必须在每个 CPU 处于以下状态时跳入内核入口：
+
+- 主 CPU 必须直接跳入内核映像的第一条指令。通过此 CPU 传递的设备树
+  数据块必须在每个 CPU 节点中包含以下内容：
+
+    1、‘enable-method’属性。目前，此字段支持的值仅为字符串“spin-table”。
+
+    2、‘cpu-release-addr’标识一个 64-bit、初始化为零的内存位置。
+
+  引导装载程序必须生成这些设备树属性，并在跳入内核入口之前将其插入
+  数据块。
+
+- 任何辅助 CPU 必须在内存保留区（通过设备树中的 /memreserve/ 域传递
+  给内核）中自旋于内核之外，轮询它们的 cpu-release-addr 位置（必须
+  包含在保留区中）。可通过插入 wfe 指令来降低忙循环开销，而主 CPU 将
+  发出 sev 指令。当对 cpu-release-addr 所指位置的读取操作返回非零值
+  时，CPU 必须直接跳入此值所指向的地址。
+
+- 辅助 CPU 通用寄存器设置
+  x0 = 0 (保留，将来可能使用)
+  x1 = 0 (保留，将来可能使用)
+  x2 = 0 (保留，将来可能使用)
+  x3 = 0 (保留，将来可能使用)

Documentation/zh_CN/arm64/memory.txt

@@ -0,0 +1,93 @@
+Chinese translated version of Documentation/arm64/memory.txt
+
+If you have any comment or update to the content, please contact the
+original document maintainer directly.  However, if you have a problem
+communicating in English you can also ask the Chinese maintainer for
+help.  Contact the Chinese maintainer if this translation is outdated
+or if there is a problem with the translation.
+
+Maintainer: Catalin Marinas <catalin.marinas@arm.com>
+Chinese maintainer: Fu Wei <tekkamanninja@gmail.com>
+---------------------------------------------------------------------
+Documentation/arm64/memory.txt 的中文翻译
+
+如果想评论或更新本文的内容，请直接联系原文档的维护者。如果你使用英文
+交流有困难的话，也可以向中文版维护者求助。如果本翻译更新不及时或者翻
+译存在问题，请联系中文版维护者。
+
+英文版维护者： Catalin Marinas <catalin.marinas@arm.com>
+中文版维护者： 傅炜  Fu Wei <tekkamanninja@gmail.com>
+中文版翻译者： 傅炜  Fu Wei <tekkamanninja@gmail.com>
+中文版校译者： 傅炜  Fu Wei <tekkamanninja@gmail.com>
+
+以下为正文
+---------------------------------------------------------------------
+		     Linux 在 AArch64 中的内存布局
+		     ===========================
+
+作者: Catalin Marinas <catalin.marinas@arm.com>
+日期: 2012 年 02 月 20 日
+
+本文档描述 AArch64 Linux 内核所使用的虚拟内存布局。此构架可以实现
+页大小为 4KB 的 4 级转换表和页大小为 64KB 的 3 级转换表。
+
+AArch64 Linux 使用页大小为 4KB 的 3 级转换表配置，对于用户和内核
+都有 39-bit (512GB) 的虚拟地址空间。对于页大小为 64KB的配置，仅
+使用 2 级转换表，但内存布局相同。
+
+用户地址空间的 63:39 位为 0，而内核地址空间的相应位为 1。TTBRx 的
+选择由虚拟地址的 63 位给出。swapper_pg_dir 仅包含内核（全局）映射，
+而用户 pgd 仅包含用户（非全局）映射。swapper_pgd_dir 地址被写入
+TTBR1 中，且从不写入 TTBR0。
+
+
+AArch64 Linux 内存布局：
+
+起始地址			结束地址			大小		用途
+-----------------------------------------------------------------------
+0000000000000000	0000007fffffffff	 512GB		用户空间
+
+ffffff8000000000	ffffffbbfffcffff	~240GB		vmalloc
+
+ffffffbbfffd0000	ffffffbcfffdffff	  64KB		[防护页]
+
+ffffffbbfffe0000	ffffffbcfffeffff	  64KB		PCI I/O 空间
+
+ffffffbbffff0000	ffffffbcffffffff	  64KB		[防护页]
+
+ffffffbc00000000	ffffffbdffffffff	   8GB		vmemmap
+
+ffffffbe00000000	ffffffbffbffffff	  ~8GB		[防护页，未来用于 vmmemap]
+
+ffffffbffc000000	ffffffbfffffffff	  64MB		模块
+
+ffffffc000000000	ffffffffffffffff	 256GB		内存空间
+
+
+4KB 页大小的转换表查找：
+
++--------+--------+--------+--------+--------+--------+--------+--------+
+|63    56|55    48|47    40|39    32|31    24|23    16|15     8|7      0|
++--------+--------+--------+--------+--------+--------+--------+--------+
+ |                 |         |         |         |         |
+ |                 |         |         |         |         v
+ |                 |         |         |         |   [11:0]  页内偏移
+ |                 |         |         |         +-> [20:12] L3 索引
+ |                 |         |         +-----------> [29:21] L2 索引
+ |                 |         +---------------------> [38:30] L1 索引
+ |                 +-------------------------------> [47:39] L0 索引 (未使用)
+ +-------------------------------------------------> [63] TTBR0/1
+
+
+64KB 页大小的转换表查找：
+
++--------+--------+--------+--------+--------+--------+--------+--------+
+|63    56|55    48|47    40|39    32|31    24|23    16|15     8|7      0|
++--------+--------+--------+--------+--------+--------+--------+--------+
+ |                 |    |               |              |
+ |                 |    |               |              v
+ |                 |    |               |            [15:0]  页内偏移
+ |                 |    |               +----------> [28:16] L3 索引
+ |                 |    +--------------------------> [41:29] L2 索引 (仅使用 38:29 )
+ |                 +-------------------------------> [47:42] L1 索引 (未使用)
+ +-------------------------------------------------> [63] TTBR0/1

MAINTAINERS

@@ -503,7 +503,7 @@ F:	include/linux/altera_uart.h
 F:	include/linux/altera_jtaguart.h
 
 AMD FAM15H PROCESSOR POWER MONITORING DRIVER
-M:	Andreas Herrmann <andreas.herrmann3@amd.com>
+M:	Andreas Herrmann <herrmann.der.user@googlemail.com>
 L:	lm-sensors@lm-sensors.org
 S:	Maintained
 F:	Documentation/hwmon/fam15h_power
@@ -526,17 +526,17 @@ F:	drivers/video/geode/
 F:	arch/x86/include/asm/geode.h
 
 AMD IOMMU (AMD-VI)
-M:	Joerg Roedel <joerg.roedel@amd.com>
+M:	Joerg Roedel <joro@8bytes.org>
 L:	iommu@lists.linux-foundation.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
-S:	Supported
+S:	Maintained
 F:	drivers/iommu/amd_iommu*.[ch]
 F:	include/linux/amd-iommu.h
 
 AMD MICROCODE UPDATE SUPPORT
-M:	Andreas Herrmann <andreas.herrmann3@amd.com>
+M:	Andreas Herrmann <herrmann.der.user@googlemail.com>
 L:	amd64-microcode@amd64.org
-S:	Supported
+S:	Maintained
 F:	arch/x86/kernel/microcode_amd.c
 
 AMS (Apple Motion Sensor) DRIVER
@@ -637,6 +637,13 @@ W:	http://www.arm.linux.org.uk/
 S:	Maintained
 F:	arch/arm/
 
+ARM SUB-ARCHITECTURES
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	MAINTAINED
+F:	arch/arm/mach-*/
+F:	arch/arm/plat-*/
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc.git
+
 ARM PRIMECELL AACI PL041 DRIVER
 M:	Russell King <linux@arm.linux.org.uk>
 S:	Maintained
@@ -834,6 +841,14 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kristoffer/linux-hpc.git
 F:	arch/arm/mach-sa1100/jornada720.c
 F:	arch/arm/mach-sa1100/include/mach/jornada720.h
 
+ARM/IGEP MACHINE SUPPORT
+M:	Enric Balletbo i Serra <eballetbo@gmail.com>
+M:	Javier Martinez Canillas <javier@dowhile0.org>
+L:	linux-omap@vger.kernel.org
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+F:	arch/arm/mach-omap2/board-igep0020.c
+
 ARM/INCOME PXA270 SUPPORT
 M:	Marek Vasut <marek.vasut@gmail.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -2500,6 +2515,7 @@ M:	Joonyoung Shim <jy0922.shim@samsung.com>
 M:	Seung-Woo Kim <sw0312.kim@samsung.com>
 M:	Kyungmin Park <kyungmin.park@samsung.com>
 L:	dri-devel@lists.freedesktop.org
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos.git
 S:	Supported
 F:	drivers/gpu/drm/exynos
 F:	include/drm/exynos*
@@ -2700,10 +2716,10 @@ F:	include/linux/edac.h
 
 EDAC-AMD64
 M:	Doug Thompson <dougthompson@xmission.com>
-M:	Borislav Petkov <borislav.petkov@amd.com>
+M:	Borislav Petkov <bp@alien8.de>
 L:	linux-edac@vger.kernel.org
 W:	bluesmoke.sourceforge.net
-S:	Supported
+S:	Maintained
 F:	drivers/edac/amd64_edac*
 
 EDAC-E752X
@@ -2802,6 +2818,7 @@ F:	sound/usb/misc/ua101.c
 EXTENSIBLE FIRMWARE INTERFACE (EFI)
 M:	Matt Fleming <matt.fleming@intel.com>
 L:	linux-efi@vger.kernel.org
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi.git
 S:	Maintained
 F:	Documentation/x86/efi-stub.txt
 F:	arch/ia64/kernel/efi.c
@@ -3589,6 +3606,49 @@ F:	drivers/hid/hid-hyperv.c
 F:	drivers/net/hyperv/
 F:	drivers/staging/hv/
 
+I2C OVER PARALLEL PORT
+M:	Jean Delvare <khali@linux-fr.org>
+L:	linux-i2c@vger.kernel.org
+S:	Maintained
+F:	Documentation/i2c/busses/i2c-parport
+F:	Documentation/i2c/busses/i2c-parport-light
+F:	drivers/i2c/busses/i2c-parport.c
+F:	drivers/i2c/busses/i2c-parport-light.c
+
+I2C/SMBUS CONTROLLER DRIVERS FOR PC
+M:	Jean Delvare <khali@linux-fr.org>
+L:	linux-i2c@vger.kernel.org
+S:	Maintained
+F:	Documentation/i2c/busses/i2c-ali1535
+F:	Documentation/i2c/busses/i2c-ali1563
+F:	Documentation/i2c/busses/i2c-ali15x3
+F:	Documentation/i2c/busses/i2c-amd756
+F:	Documentation/i2c/busses/i2c-amd8111
+F:	Documentation/i2c/busses/i2c-i801
+F:	Documentation/i2c/busses/i2c-nforce2
+F:	Documentation/i2c/busses/i2c-piix4
+F:	Documentation/i2c/busses/i2c-sis5595
+F:	Documentation/i2c/busses/i2c-sis630
+F:	Documentation/i2c/busses/i2c-sis96x
+F:	Documentation/i2c/busses/i2c-via
+F:	Documentation/i2c/busses/i2c-viapro
+F:	drivers/i2c/busses/i2c-ali1535.c
+F:	drivers/i2c/busses/i2c-ali1563.c
+F:	drivers/i2c/busses/i2c-ali15x3.c
+F:	drivers/i2c/busses/i2c-amd756.c
+F:	drivers/i2c/busses/i2c-amd756-s4882.c
+F:	drivers/i2c/busses/i2c-amd8111.c
+F:	drivers/i2c/busses/i2c-i801.c
+F:	drivers/i2c/busses/i2c-isch.c
+F:	drivers/i2c/busses/i2c-nforce2.c
+F:	drivers/i2c/busses/i2c-nforce2-s4985.c
+F:	drivers/i2c/busses/i2c-piix4.c
+F:	drivers/i2c/busses/i2c-sis5595.c
+F:	drivers/i2c/busses/i2c-sis630.c
+F:	drivers/i2c/busses/i2c-sis96x.c
+F:	drivers/i2c/busses/i2c-via.c
+F:	drivers/i2c/busses/i2c-viapro.c
+
 I2C/SMBUS STUB DRIVER
 M:	"Mark M. Hoffman" <mhoffman@lightlink.com>
 L:	linux-i2c@vger.kernel.org
@@ -3596,9 +3656,8 @@ S:	Maintained
 F:	drivers/i2c/busses/i2c-stub.c
 
 I2C SUBSYSTEM
-M:	"Jean Delvare (PC drivers, core)" <khali@linux-fr.org>
+M:	Wolfram Sang <w.sang@pengutronix.de>
 M:	"Ben Dooks (embedded platforms)" <ben-linux@fluff.org>
-M:	"Wolfram Sang (embedded platforms)" <w.sang@pengutronix.de>
 L:	linux-i2c@vger.kernel.org
 W:	http://i2c.wiki.kernel.org/
 T:	quilt kernel.org/pub/linux/kernel/people/jdelvare/linux-2.6/jdelvare-i2c/
@@ -3609,6 +3668,13 @@ F:	drivers/i2c/
 F:	include/linux/i2c.h
 F:	include/linux/i2c-*.h
 
+I2C-TAOS-EVM DRIVER
+M:	Jean Delvare <khali@linux-fr.org>
+L:	linux-i2c@vger.kernel.org
+S:	Maintained
+F:	Documentation/i2c/busses/i2c-taos-evm
+F:	drivers/i2c/busses/i2c-taos-evm.c
+
 I2C-TINY-USB DRIVER
 M:	Till Harbaum <till@harbaum.org>
 L:	linux-i2c@vger.kernel.org
@@ -3695,7 +3761,7 @@ S:	Maintained
 F:	drivers/platform/x86/ideapad-laptop.c
 
 IDE/ATAPI DRIVERS
-M:	Borislav Petkov <petkovbb@gmail.com>
+M:	Borislav Petkov <bp@alien8.de>
 L:	linux-ide@vger.kernel.org
 S:	Maintained
 F:	Documentation/cdrom/ide-cd
@@ -4222,8 +4288,8 @@ F:	include/linux/lockd/
 F:	include/linux/sunrpc/
 
 KERNEL VIRTUAL MACHINE (KVM)
-M:	Avi Kivity <avi@redhat.com>
 M:	Marcelo Tosatti <mtosatti@redhat.com>
+M:	Gleb Natapov <gleb@redhat.com>
 L:	kvm@vger.kernel.org
 W:	http://kvm.qumranet.com
 S:	Supported
@@ -5061,7 +5127,13 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git
 S:	Odd Fixes
 F:	drivers/net/
 F:	include/linux/if_*
-F:	include/linux/*device.h
+F:	include/linux/netdevice.h
+F:	include/linux/arcdevice.h
+F:	include/linux/etherdevice.h
+F:	include/linux/fcdevice.h
+F:	include/linux/fddidevice.h
+F:	include/linux/hippidevice.h
+F:	include/linux/inetdevice.h
 
 NETXEN (1/10) GbE SUPPORT
 M:	Sony Chacko <sony.chacko@qlogic.com>
@@ -5349,7 +5421,7 @@ S:	Maintained
 F:	sound/drivers/opl4/
 
 OPROFILE
-M:	Robert Richter <robert.richter@amd.com>
+M:	Robert Richter <rric@kernel.org>
 L:	oprofile-list@lists.sf.net
 S:	Maintained
 F:	arch/*/include/asm/oprofile*.h
@@ -5633,7 +5705,7 @@ S:	Maintained
 F:	drivers/pinctrl/spear/
 
 PKTCDVD DRIVER
-M:	Peter Osterlund <petero2@telia.com>
+M:	Jiri Kosina <jkosina@suse.cz>
 S:	Maintained
 F:	drivers/block/pktcdvd.c
 F:	include/linux/pktcdvd.h
@@ -7195,6 +7267,14 @@ L:	linux-xtensa@linux-xtensa.org
 S:	Maintained
 F:	arch/xtensa/
 
+THERMAL
+M:      Zhang Rui <rui.zhang@intel.com>
+L:      linux-pm@vger.kernel.org
+T:      git git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux.git
+S:      Supported
+F:      drivers/thermal/
+F:      include/linux/thermal.h
+
 THINKPAD ACPI EXTRAS DRIVER
 M:	Henrique de Moraes Holschuh <ibm-acpi@hmh.eng.br>
 L:	ibm-acpi-devel@lists.sourceforge.net
@@ -7872,13 +7952,6 @@ M:	Roger Luethi <rl@hellgate.ch>
 S:	Maintained
 F:	drivers/net/ethernet/via/via-rhine.c
 
-VIAPRO SMBUS DRIVER
-M:	Jean Delvare <khali@linux-fr.org>
-L:	linux-i2c@vger.kernel.org
-S:	Maintained
-F:	Documentation/i2c/busses/i2c-viapro
-F:	drivers/i2c/busses/i2c-viapro.c
-
 VIA SD/MMC CARD CONTROLLER DRIVER
 M:	Bruce Chang <brucechang@via.com.tw>
 M:	Harald Welte <HaraldWelte@viatech.com>
@@ -8133,7 +8206,7 @@ F:	drivers/platform/x86
 
 X86 MCE INFRASTRUCTURE
 M:	Tony Luck <tony.luck@intel.com>
-M:	Borislav Petkov <bp@amd64.org>
+M:	Borislav Petkov <bp@alien8.de>
 L:	linux-edac@vger.kernel.org
 S:	Maintained
 F:	arch/x86/kernel/cpu/mcheck/*

Makefile

@@ -1,7 +1,7 @@
 VERSION = 3
 PATCHLEVEL = 7
 SUBLEVEL = 0
-EXTRAVERSION = -rc2
+EXTRAVERSION = -rc7
 NAME = Terrified Chipmunk
 
 # *DOCUMENTATION*

arch/alpha/include/asm/thread_info.h

@@ -7,6 +7,7 @@
 #include <asm/processor.h>
 #include <asm/types.h>
 #include <asm/hwrpb.h>
+#include <asm/sysinfo.h>
 #endif
 
 #ifndef __ASSEMBLY__
@@ -21,6 +22,7 @@ struct thread_info {
 	mm_segment_t		addr_limit;	/* thread address space */
 	unsigned		cpu;		/* current CPU */
 	int			preempt_count; /* 0 => preemptable, <0 => BUG */
+	unsigned int		status;		/* thread-synchronous flags */
 
 	int bpt_nsaved;
 	unsigned long bpt_addr[2];		/* breakpoint handling  */
@@ -63,8 +65,6 @@ register struct thread_info *__current_thread_info __asm__("$8");
  * - these are process state flags and used from assembly
  * - pending work-to-be-done flags come first and must be assigned to be
  *   within bits 0 to 7 to fit in and immediate operand.
- * - ALPHA_UAC_SHIFT below must be kept consistent with the unaligned
- *   control flags.
  *
  * TIF_SYSCALL_TRACE is known to be 0 via blbs.
  */
@@ -72,18 +72,12 @@ register struct thread_info *__current_thread_info __asm__("$8");
 #define TIF_NOTIFY_RESUME	1	/* callback before returning to user */
 #define TIF_SIGPENDING		2	/* signal pending */
 #define TIF_NEED_RESCHED	3	/* rescheduling necessary */
-#define TIF_POLLING_NRFLAG	8	/* poll_idle is polling NEED_RESCHED */
 #define TIF_DIE_IF_KERNEL	9	/* dik recursion lock */
-#define TIF_UAC_NOPRINT		10	/* ! Preserve sequence of following */
-#define TIF_UAC_NOFIX		11	/* ! flags as they match            */
-#define TIF_UAC_SIGBUS		12	/* ! userspace part of 'osf_sysinfo' */
 #define TIF_MEMDIE		13	/* is terminating due to OOM killer */
-#define TIF_RESTORE_SIGMASK	14	/* restore signal mask in do_signal */
 
 #define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
 #define _TIF_SIGPENDING		(1<<TIF_SIGPENDING)
 #define _TIF_NEED_RESCHED	(1<<TIF_NEED_RESCHED)
-#define _TIF_POLLING_NRFLAG	(1<<TIF_POLLING_NRFLAG)
 #define _TIF_NOTIFY_RESUME	(1<<TIF_NOTIFY_RESUME)
 
 /* Work to do on interrupt/exception return.  */
@@ -94,29 +88,63 @@ register struct thread_info *__current_thread_info __asm__("$8");
 #define _TIF_ALLWORK_MASK	(_TIF_WORK_MASK		\
 				 | _TIF_SYSCALL_TRACE)
 
-#define ALPHA_UAC_SHIFT		TIF_UAC_NOPRINT
+#define TS_UAC_NOPRINT		0x0001	/* ! Preserve the following three */
-#define ALPHA_UAC_MASK		(1 << TIF_UAC_NOPRINT | 1 << TIF_UAC_NOFIX | \
+#define TS_UAC_NOFIX		0x0002	/* ! flags as they match          */
-				 1 << TIF_UAC_SIGBUS)
+#define TS_UAC_SIGBUS		0x0004	/* ! userspace part of 'osf_sysinfo' */
+#define TS_RESTORE_SIGMASK	0x0008	/* restore signal mask in do_signal() */
+#define TS_POLLING		0x0010	/* idle task polling need_resched,
+					   skip sending interrupt */
+
+#define tsk_is_polling(t) (task_thread_info(t)->status & TS_POLLING)
+
+#ifndef __ASSEMBLY__
+#define HAVE_SET_RESTORE_SIGMASK	1
+static inline void set_restore_sigmask(void)
+{
+	struct thread_info *ti = current_thread_info();
+	ti->status |= TS_RESTORE_SIGMASK;
+	WARN_ON(!test_bit(TIF_SIGPENDING, (unsigned long *)&ti->flags));
+}
+static inline void clear_restore_sigmask(void)
+{
+	current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
+}
+static inline bool test_restore_sigmask(void)
+{
+	return current_thread_info()->status & TS_RESTORE_SIGMASK;
+}
+static inline bool test_and_clear_restore_sigmask(void)
+{
+	struct thread_info *ti = current_thread_info();
+	if (!(ti->status & TS_RESTORE_SIGMASK))
+		return false;
+	ti->status &= ~TS_RESTORE_SIGMASK;
+	return true;
+}
+#endif
 
 #define SET_UNALIGN_CTL(task,value)	({				\
-	task_thread_info(task)->flags = ((task_thread_info(task)->flags &    \
+	__u32 status = task_thread_info(task)->status & ~UAC_BITMASK;	\
-		~ALPHA_UAC_MASK)					     \
+	if (value & PR_UNALIGN_NOPRINT)					\
-		| (((value) << ALPHA_UAC_SHIFT)       & (1<<TIF_UAC_NOPRINT))\
+		status |= TS_UAC_NOPRINT;				\
-		| (((value) << (ALPHA_UAC_SHIFT + 1)) & (1<<TIF_UAC_SIGBUS)) \
+	if (value & PR_UNALIGN_SIGBUS)					\
-		| (((value) << (ALPHA_UAC_SHIFT - 1)) & (1<<TIF_UAC_NOFIX)));\
+		status |= TS_UAC_SIGBUS;				\
+	if (value & 4)	/* alpha-specific */				\
+		status |= TS_UAC_NOFIX;					\
+	task_thread_info(task)->status = status;			\
 	0; })
 
 #define GET_UNALIGN_CTL(task,value)	({				\
-	put_user((task_thread_info(task)->flags & (1 << TIF_UAC_NOPRINT))\
+	__u32 status = task_thread_info(task)->status & ~UAC_BITMASK;	\
-		  >> ALPHA_UAC_SHIFT					\
+	__u32 res = 0;							\
-		 | (task_thread_info(task)->flags & (1 << TIF_UAC_SIGBUS))\
+	if (status & TS_UAC_NOPRINT)					\
-		 >> (ALPHA_UAC_SHIFT + 1)				\
+		res |= PR_UNALIGN_NOPRINT;				\
-		 | (task_thread_info(task)->flags & (1 << TIF_UAC_NOFIX))\
+	if (status & TS_UAC_SIGBUS)					\
-		 >> (ALPHA_UAC_SHIFT - 1),				\
+		res |= PR_UNALIGN_SIGBUS;				\
-		 (int __user *)(value));				\
+	if (status & TS_UAC_NOFIX)					\
+		res |= 4;						\
+	put_user(res, (int __user *)(value));				\
 	})
 
-#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG)
-
 #endif /* __KERNEL__ */
 #endif /* _ALPHA_THREAD_INFO_H */

arch/alpha/kernel/osf_sys.c

@@ -445,7 +445,7 @@ struct procfs_args {
  * unhappy with OSF UFS. [CHECKME]
  */
 static int
-osf_ufs_mount(char *dirname, struct ufs_args __user *args, int flags)
+osf_ufs_mount(const char *dirname, struct ufs_args __user *args, int flags)
 {
 	int retval;
 	struct cdfs_args tmp;
@@ -465,7 +465,7 @@ osf_ufs_mount(char *dirname, struct ufs_args __user *args, int flags)
 }
 
 static int
-osf_cdfs_mount(char *dirname, struct cdfs_args __user *args, int flags)
+osf_cdfs_mount(const char *dirname, struct cdfs_args __user *args, int flags)
 {
 	int retval;
 	struct cdfs_args tmp;
@@ -485,7 +485,7 @@ osf_cdfs_mount(char *dirname, struct cdfs_args __user *args, int flags)
 }
 
 static int
-osf_procfs_mount(char *dirname, struct procfs_args __user *args, int flags)
+osf_procfs_mount(const char *dirname, struct procfs_args __user *args, int flags)
 {
 	struct procfs_args tmp;
 
@@ -793,8 +793,7 @@ SYSCALL_DEFINE5(osf_getsysinfo, unsigned long, op, void __user *, buffer,
  	case GSI_UACPROC:
 		if (nbytes < sizeof(unsigned int))
 			return -EINVAL;
-		w = (current_thread_info()->flags >> ALPHA_UAC_SHIFT) &
+		w = current_thread_info()->status & UAC_BITMASK;
-			UAC_BITMASK;
 		if (put_user(w, (unsigned int __user *)buffer))
 			return -EFAULT;
  		return 1;
@@ -904,24 +903,20 @@ SYSCALL_DEFINE5(osf_setsysinfo, unsigned long, op, void __user *, buffer,
 		break;
 
  	case SSI_NVPAIRS: {
-		unsigned long v, w, i;
+		unsigned __user *p = buffer;
-		unsigned int old, new;
+		unsigned i;
 		
- 		for (i = 0; i < nbytes; ++i) {
+		for (i = 0, p = buffer; i < nbytes; ++i, p += 2) {
+			unsigned v, w, status;
 
- 			if (get_user(v, 2*i + (unsigned int __user *)buffer))
+			if (get_user(v, p) || get_user(w, p + 1))
- 				return -EFAULT;
- 			if (get_user(w, 2*i + 1 + (unsigned int __user *)buffer))
  				return -EFAULT;
  			switch (v) {
  			case SSIN_UACPROC:
-			again:
+				w &= UAC_BITMASK;
-				old = current_thread_info()->flags;
+				status = current_thread_info()->status;
-				new = old & ~(UAC_BITMASK << ALPHA_UAC_SHIFT);
+				status = (status & ~UAC_BITMASK) | w;
-				new = new | (w & UAC_BITMASK) << ALPHA_UAC_SHIFT;
+				current_thread_info()->status = status;
-				if (cmpxchg(&current_thread_info()->flags,
-					    old, new) != old)
-					goto again;
  				break;
  
  			default:

arch/alpha/kernel/process.c

@@ -49,7 +49,7 @@ EXPORT_SYMBOL(pm_power_off);
 void
 cpu_idle(void)
 {
-	set_thread_flag(TIF_POLLING_NRFLAG);
+	current_thread_info()->status |= TS_POLLING;
 
 	while (1) {
 		/* FIXME -- EV6 and LCA45 know how to power down

arch/alpha/kernel/traps.c

@@ -780,17 +780,17 @@ do_entUnaUser(void __user * va, unsigned long opcode,
 	/* Check the UAC bits to decide what the user wants us to do
 	   with the unaliged access.  */
 
-	if (!test_thread_flag (TIF_UAC_NOPRINT)) {
+	if (!(current_thread_info()->status & TS_UAC_NOPRINT)) {
 		if (__ratelimit(&ratelimit)) {
 			printk("%s(%d): unaligned trap at %016lx: %p %lx %ld\n",
 			       current->comm, task_pid_nr(current),
 			       regs->pc - 4, va, opcode, reg);
 		}
 	}
-	if (test_thread_flag (TIF_UAC_SIGBUS))
+	if ((current_thread_info()->status & TS_UAC_SIGBUS))
 		goto give_sigbus;
 	/* Not sure why you'd want to use this, but... */
-	if (test_thread_flag (TIF_UAC_NOFIX))
+	if ((current_thread_info()->status & TS_UAC_NOFIX))
 		return;
 
 	/* Don't bother reading ds in the access check since we already

arch/arm/Kconfig

@@ -1603,8 +1603,8 @@ config NR_CPUS
 	default "4"
 
 config HOTPLUG_CPU
-	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
+	bool "Support for hot-pluggable CPUs"
-	depends on SMP && HOTPLUG && EXPERIMENTAL
+	depends on SMP && HOTPLUG
 	help
 	  Say Y here to experiment with turning CPUs off and on.  CPUs
 	  can be controlled through /sys/devices/system/cpu.
@@ -1645,8 +1645,8 @@ config HZ
 	default 100
 
 config THUMB2_KERNEL
-	bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
+	bool "Compile the kernel in Thumb-2 mode"
-	depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
+	depends on CPU_V7 && !CPU_V6 && !CPU_V6K
 	select AEABI
 	select ARM_ASM_UNIFIED
 	select ARM_UNWIND
@@ -1850,6 +1850,7 @@ config XEN_DOM0
 config XEN
 	bool "Xen guest support on ARM (EXPERIMENTAL)"
 	depends on EXPERIMENTAL && ARM && OF
+	depends on CPU_V7 && !CPU_V6
 	help
 	  Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
 

arch/arm/Makefile

@@ -21,8 +21,6 @@ endif
 OBJCOPYFLAGS	:=-O binary -R .comment -S
 GZFLAGS		:=-9
 #KBUILD_CFLAGS	+=-pipe
-# Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
-KBUILD_CFLAGS	+=$(call cc-option,-marm,)
 
 # Never generate .eh_frame
 KBUILD_CFLAGS	+= $(call cc-option,-fno-dwarf2-cfi-asm)
@@ -105,17 +103,20 @@ endif
 ifeq ($(CONFIG_THUMB2_KERNEL),y)
 AFLAGS_AUTOIT	:=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it)
 AFLAGS_NOWARN	:=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
-CFLAGS_THUMB2	:=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
+CFLAGS_ISA	:=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
-AFLAGS_THUMB2	:=$(CFLAGS_THUMB2) -Wa$(comma)-mthumb
+AFLAGS_ISA	:=$(CFLAGS_ISA) -Wa$(comma)-mthumb
 # Work around buggy relocation from gas if requested:
 ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y)
 CFLAGS_MODULE	+=-fno-optimize-sibling-calls
 endif
+else
+CFLAGS_ISA	:=$(call cc-option,-marm,)
+AFLAGS_ISA	:=$(CFLAGS_ISA)
 endif
 
 # Need -Uarm for gcc < 3.x
-KBUILD_CFLAGS	+=$(CFLAGS_ABI) $(CFLAGS_THUMB2) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
+KBUILD_CFLAGS	+=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
-KBUILD_AFLAGS	+=$(CFLAGS_ABI) $(AFLAGS_THUMB2) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
+KBUILD_AFLAGS	+=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
 
 CHECKFLAGS	+= -D__arm__
 

arch/arm/boot/Makefile

@@ -33,7 +33,7 @@ ifeq ($(CONFIG_XIP_KERNEL),y)
 
 $(obj)/xipImage: vmlinux FORCE
 	$(call if_changed,objcopy)
-	@echo '  Kernel: $@ is ready (physical address: $(CONFIG_XIP_PHYS_ADDR))'
+	@$(kecho) '  Kernel: $@ is ready (physical address: $(CONFIG_XIP_PHYS_ADDR))'
 
 $(obj)/Image $(obj)/zImage: FORCE
 	@echo 'Kernel configured for XIP (CONFIG_XIP_KERNEL=y)'
@@ -48,14 +48,14 @@ $(obj)/xipImage: FORCE
 
 $(obj)/Image: vmlinux FORCE
 	$(call if_changed,objcopy)
-	@echo '  Kernel: $@ is ready'
+	@$(kecho) '  Kernel: $@ is ready'
 
 $(obj)/compressed/vmlinux: $(obj)/Image FORCE
 	$(Q)$(MAKE) $(build)=$(obj)/compressed $@
 
 $(obj)/zImage:	$(obj)/compressed/vmlinux FORCE
 	$(call if_changed,objcopy)
-	@echo '  Kernel: $@ is ready'
+	@$(kecho) '  Kernel: $@ is ready'
 
 endif
 
@@ -90,7 +90,7 @@ fi
 $(obj)/uImage:	$(obj)/zImage FORCE
 	@$(check_for_multiple_loadaddr)
 	$(call if_changed,uimage)
-	@echo '  Image $@ is ready'
+	@$(kecho) '  Image $@ is ready'
 
 $(obj)/bootp/bootp: $(obj)/zImage initrd FORCE
 	$(Q)$(MAKE) $(build)=$(obj)/bootp $@
@@ -98,7 +98,7 @@ $(obj)/bootp/bootp: $(obj)/zImage initrd FORCE
 
 $(obj)/bootpImage: $(obj)/bootp/bootp FORCE
 	$(call if_changed,objcopy)
-	@echo '  Kernel: $@ is ready'
+	@$(kecho) '  Kernel: $@ is ready'
 
 PHONY += initrd FORCE
 initrd:

arch/arm/boot/dts/at91sam9g20ek_common.dtsi

@@ -126,14 +126,14 @@
 		#size-cells = <0>;
 
 		btn3 {
-			label = "Buttin 3";
+			label = "Button 3";
 			gpios = <&pioA 30 1>;
 			linux,code = <0x103>;
 			gpio-key,wakeup;
 		};
 
 		btn4 {
-			label = "Buttin 4";
+			label = "Button 4";
 			gpios = <&pioA 31 1>;
 			linux,code = <0x104>;
 			gpio-key,wakeup;

arch/arm/boot/dts/dbx5x0.dtsi

@@ -483,6 +483,8 @@
 			compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell";
 			reg = <0x80004000 0x1000>;
 			interrupts = <0 21 0x4>;
+			arm,primecell-periphid = <0x180024>;
+
 			#address-cells = <1>;
 			#size-cells = <0>;
 			v-i2c-supply = <&db8500_vape_reg>;
@@ -494,6 +496,8 @@
 			compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell";
 			reg = <0x80122000 0x1000>;
 			interrupts = <0 22 0x4>;
+			arm,primecell-periphid = <0x180024>;
+
 			#address-cells = <1>;
 			#size-cells = <0>;
 			v-i2c-supply = <&db8500_vape_reg>;
@@ -505,6 +509,8 @@
 			compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell";
 			reg = <0x80128000 0x1000>;
 			interrupts = <0 55 0x4>;
+			arm,primecell-periphid = <0x180024>;
+
 			#address-cells = <1>;
 			#size-cells = <0>;
 			v-i2c-supply = <&db8500_vape_reg>;
@@ -516,6 +522,8 @@
 			compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell";
 			reg = <0x80110000 0x1000>;
 			interrupts = <0 12 0x4>;
+			arm,primecell-periphid = <0x180024>;
+
 			#address-cells = <1>;
 			#size-cells = <0>;
 			v-i2c-supply = <&db8500_vape_reg>;
@@ -527,6 +535,8 @@
 			compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell";
 			reg = <0x8012a000 0x1000>;
 			interrupts = <0 51 0x4>;
+			arm,primecell-periphid = <0x180024>;
+
 			#address-cells = <1>;
 			#size-cells = <0>;
 			v-i2c-supply = <&db8500_vape_reg>;
@@ -573,33 +583,38 @@
 			interrupts = <0 60 0x4>;
 			status = "disabled";
 		};
+
 		sdi@80118000 {
 			compatible = "arm,pl18x", "arm,primecell";
 			reg = <0x80118000 0x1000>;
 			interrupts = <0 50 0x4>;
 			status = "disabled";
 		};
+
 		sdi@80005000 {
 			compatible = "arm,pl18x", "arm,primecell";
 			reg = <0x80005000 0x1000>;
 			interrupts = <0 41 0x4>;
 			status = "disabled";
 		};
+
 		sdi@80119000 {
 			compatible = "arm,pl18x", "arm,primecell";
 			reg = <0x80119000 0x1000>;
 			interrupts = <0 59 0x4>;
 			status = "disabled";
 		};
+
 		sdi@80114000 {
 			compatible = "arm,pl18x", "arm,primecell";
 			reg = <0x80114000 0x1000>;
 			interrupts = <0 99 0x4>;
 			status = "disabled";
 		};
+
 		sdi@80008000 {
 			compatible = "arm,pl18x", "arm,primecell";
-			reg = <0x80114000 0x1000>;
+			reg = <0x80008000 0x1000>;
 			interrupts = <0 100 0x4>;
 			status = "disabled";
 		};

arch/arm/boot/dts/exynos4210-trats.dts

@@ -20,8 +20,10 @@
 	compatible = "samsung,trats", "samsung,exynos4210";
 
 	memory {
-		reg =  <0x40000000 0x20000000
+		reg =  <0x40000000 0x10000000
-			0x60000000 0x20000000>;
+			0x50000000 0x10000000
+			0x60000000 0x10000000
+			0x70000000 0x10000000>;
 	};
 
 	chosen {

arch/arm/boot/dts/imx23.dtsi

@@ -69,6 +69,7 @@
 				interrupts = <13>, <56>;
 				interrupt-names = "gpmi-dma", "bch";
 				clocks = <&clks 34>;
+				clock-names = "gpmi_io";
 				fsl,gpmi-dma-channel = <4>;
 				status = "disabled";
 			};

arch/arm/boot/dts/imx28.dtsi

@@ -85,6 +85,7 @@
 				interrupts = <88>, <41>;
 				interrupt-names = "gpmi-dma", "bch";
 				clocks = <&clks 50>;
+				clock-names = "gpmi_io";
 				fsl,gpmi-dma-channel = <4>;
 				status = "disabled";
 			};

arch/arm/boot/dts/omap3.dtsi

@@ -257,7 +257,7 @@
 			interrupt-names = "common", "tx", "rx", "sidetone";
 			interrupt-parent = <&intc>;
 			ti,buffer-size = <1280>;
-			ti,hwmods = "mcbsp2";
+			ti,hwmods = "mcbsp2", "mcbsp2_sidetone";
 		};
 
 		mcbsp3: mcbsp@49024000 {
@@ -272,7 +272,7 @@
 			interrupt-names = "common", "tx", "rx", "sidetone";
 			interrupt-parent = <&intc>;
 			ti,buffer-size = <128>;
-			ti,hwmods = "mcbsp3";
+			ti,hwmods = "mcbsp3", "mcbsp3_sidetone";
 		};
 
 		mcbsp4: mcbsp@49026000 {

arch/arm/boot/dts/tegra30.dtsi

@@ -73,8 +73,8 @@
 
 	pinmux: pinmux {
 		compatible = "nvidia,tegra30-pinmux";
-		reg = <0x70000868 0xd0    /* Pad control registers */
+		reg = <0x70000868 0xd4    /* Pad control registers */
-		       0x70003000 0x3e0>; /* Mux registers */
+		       0x70003000 0x3e4>; /* Mux registers */
 	};
 
 	serial@70006000 {

arch/arm/configs/imx_v6_v7_defconfig

@@ -139,6 +139,7 @@ CONFIG_I2C_IMX=y
 CONFIG_SPI=y
 CONFIG_SPI_IMX=y
 CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_MC9S08DZ60=y
 # CONFIG_HWMON is not set
 CONFIG_WATCHDOG=y
 CONFIG_IMX2_WDT=y
@@ -155,6 +156,7 @@ CONFIG_SOC_CAMERA=y
 CONFIG_SOC_CAMERA_OV2640=y
 CONFIG_VIDEO_MX3=y
 CONFIG_FB=y
+CONFIG_LCD_PLATFORM=y
 CONFIG_BACKLIGHT_LCD_SUPPORT=y
 CONFIG_LCD_CLASS_DEVICE=y
 CONFIG_LCD_L4F00242T03=y

arch/arm/configs/mvebu_defconfig

@@ -1,6 +1,6 @@
 CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
-CONFIG_NO_HZ=y
+CONFIG_IRQ_DOMAIN_DEBUG=y
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_BLK_DEV_INITRD=y
@@ -9,10 +9,12 @@ CONFIG_SLAB=y
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_ARCH_MVEBU=y
-CONFIG_MACH_ARMADA_370_XP=y
+CONFIG_MACH_ARMADA_370=y
+CONFIG_MACH_ARMADA_XP=y
+# CONFIG_CACHE_L2X0 is not set
 CONFIG_AEABI=y
 CONFIG_HIGHMEM=y
-CONFIG_USE_OF=y
+# CONFIG_COMPACTION is not set
 CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
 CONFIG_ARM_APPENDED_DTB=y
@@ -23,6 +25,8 @@ CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_OF_PLATFORM=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_IOMMU_SUPPORT is not set
 CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=y
 # CONFIG_EXT3_FS_XATTR is not set

arch/arm/configs/versatile_defconfig

@@ -1,3 +1,4 @@
+CONFIG_ARCH_VERSATILE=y
 CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y

arch/arm/include/asm/flat.h

@@ -8,7 +8,7 @@
 #define	flat_argvp_envp_on_stack()		1
 #define	flat_old_ram_flag(flags)		(flags)
 #define	flat_reloc_valid(reloc, size)		((reloc) <= (size))
-#define	flat_get_addr_from_rp(rp, relval, flags, persistent) get_unaligned(rp)
+#define	flat_get_addr_from_rp(rp, relval, flags, persistent) ((void)persistent,get_unaligned(rp))
 #define	flat_put_addr_at_rp(rp, val, relval)	put_unaligned(val,rp)
 #define	flat_get_relocate_addr(rel)		(rel)
 #define	flat_set_persistent(relval, p)		0

arch/arm/include/asm/io.h

@@ -64,7 +64,7 @@ extern void __raw_readsl(const void __iomem *addr, void *data, int longlen);
 static inline void __raw_writew(u16 val, volatile void __iomem *addr)
 {
 	asm volatile("strh %1, %0"
-		     : "+Qo" (*(volatile u16 __force *)addr)
+		     : "+Q" (*(volatile u16 __force *)addr)
 		     : "r" (val));
 }
 
@@ -72,7 +72,7 @@ static inline u16 __raw_readw(const volatile void __iomem *addr)
 {
 	u16 val;
 	asm volatile("ldrh %1, %0"
-		     : "+Qo" (*(volatile u16 __force *)addr),
+		     : "+Q" (*(volatile u16 __force *)addr),
 		       "=r" (val));
 	return val;
 }

arch/arm/include/asm/sched_clock.h

@@ -10,7 +10,5 @@
 
 extern void sched_clock_postinit(void);
 extern void setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate);
-extern void setup_sched_clock_needs_suspend(u32 (*read)(void), int bits,
-		unsigned long rate);
 
 #endif

arch/arm/include/asm/uaccess.h

@@ -200,8 +200,8 @@ extern int __put_user_8(void *, unsigned long long);
 #define USER_DS			KERNEL_DS
 
 #define segment_eq(a,b)		(1)
-#define __addr_ok(addr)		(1)
+#define __addr_ok(addr)		((void)(addr),1)
-#define __range_ok(addr,size)	(0)
+#define __range_ok(addr,size)	((void)(addr),0)
 #define get_fs()		(KERNEL_DS)
 
 static inline void set_fs(mm_segment_t fs)

arch/arm/include/asm/vfpmacros.h

@@ -27,9 +27,9 @@
 #if __LINUX_ARM_ARCH__ <= 6
 	ldr	\tmp, =elf_hwcap		    @ may not have MVFR regs
 	ldr	\tmp, [\tmp, #0]
-	tst	\tmp, #HWCAP_VFPv3D16
+	tst	\tmp, #HWCAP_VFPD32
-	ldceql	p11, cr0, [\base],#32*4		    @ FLDMIAD \base!, {d16-d31}
+	ldcnel	p11, cr0, [\base],#32*4		    @ FLDMIAD \base!, {d16-d31}
-	addne	\base, \base, #32*4		    @ step over unused register space
+	addeq	\base, \base, #32*4		    @ step over unused register space
 #else
 	VFPFMRX	\tmp, MVFR0			    @ Media and VFP Feature Register 0
 	and	\tmp, \tmp, #MVFR0_A_SIMD_MASK	    @ A_SIMD field
@@ -51,9 +51,9 @@
 #if __LINUX_ARM_ARCH__ <= 6
 	ldr	\tmp, =elf_hwcap		    @ may not have MVFR regs
 	ldr	\tmp, [\tmp, #0]
-	tst	\tmp, #HWCAP_VFPv3D16
+	tst	\tmp, #HWCAP_VFPD32
-	stceql	p11, cr0, [\base],#32*4		    @ FSTMIAD \base!, {d16-d31}
+	stcnel	p11, cr0, [\base],#32*4		    @ FSTMIAD \base!, {d16-d31}
-	addne	\base, \base, #32*4		    @ step over unused register space
+	addeq	\base, \base, #32*4		    @ step over unused register space
 #else
 	VFPFMRX	\tmp, MVFR0			    @ Media and VFP Feature Register 0
 	and	\tmp, \tmp, #MVFR0_A_SIMD_MASK	    @ A_SIMD field

arch/arm/include/asm/xen/interface.h

@@ -29,16 +29,22 @@
 
 #ifndef __ASSEMBLY__
 /* Explicitly size integers that represent pfns in the interface with
- * Xen so that we can have one ABI that works for 32 and 64 bit guests. */
+ * Xen so that we can have one ABI that works for 32 and 64 bit guests.
+ * Note that this means that the xen_pfn_t type may be capable of
+ * representing pfn's which the guest cannot represent in its own pfn
+ * type. However since pfn space is controlled by the guest this is
+ * fine since it simply wouldn't be able to create any sure pfns in
+ * the first place.
+ */
 typedef uint64_t xen_pfn_t;
+#define PRI_xen_pfn "llx"
 typedef uint64_t xen_ulong_t;
+#define PRI_xen_ulong "llx"
 /* Guest handles for primitive C types. */
 __DEFINE_GUEST_HANDLE(uchar, unsigned char);
 __DEFINE_GUEST_HANDLE(uint,  unsigned int);
-__DEFINE_GUEST_HANDLE(ulong, unsigned long);
 DEFINE_GUEST_HANDLE(char);
 DEFINE_GUEST_HANDLE(int);
-DEFINE_GUEST_HANDLE(long);
 DEFINE_GUEST_HANDLE(void);
 DEFINE_GUEST_HANDLE(uint64_t);
 DEFINE_GUEST_HANDLE(uint32_t);

arch/arm/include/asm/xen/page.h

@@ -10,7 +10,7 @@
 #include <xen/interface/grant_table.h>
 
 #define pfn_to_mfn(pfn)			(pfn)
-#define phys_to_machine_mapping_valid	(1)
+#define phys_to_machine_mapping_valid(pfn) (1)
 #define mfn_to_pfn(mfn)			(mfn)
 #define mfn_to_virt(m)			(__va(mfn_to_pfn(m) << PAGE_SHIFT))
 
@@ -30,6 +30,8 @@ typedef struct xpaddr {
 #define XMADDR(x)	((xmaddr_t) { .maddr = (x) })
 #define XPADDR(x)	((xpaddr_t) { .paddr = (x) })
 
+#define INVALID_P2M_ENTRY      (~0UL)
+
 static inline xmaddr_t phys_to_machine(xpaddr_t phys)
 {
 	unsigned offset = phys.paddr & ~PAGE_MASK;
@@ -74,9 +76,14 @@ static inline int m2p_remove_override(struct page *page, bool clear_pte)
 	return 0;
 }
 
+static inline bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn)
+{
+	BUG_ON(pfn != mfn && mfn != INVALID_P2M_ENTRY);
+	return true;
+}
+
 static inline bool set_phys_to_machine(unsigned long pfn, unsigned long mfn)
 {
-	BUG();
+	return __set_phys_to_machine(pfn, mfn);
-	return false;
 }
 #endif /* _ASM_ARM_XEN_PAGE_H */

arch/arm/include/debug/8250_32.S

@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2011 Picochip Ltd., Jamie Iles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Derived from arch/arm/mach-davinci/include/mach/debug-macro.S to use 32-bit
+ * accesses to the 8250.
+ */
+
+#include <linux/serial_reg.h>
+
+		.macro	senduart,rd,rx
+		str	\rd, [\rx, #UART_TX << UART_SHIFT]
+		.endm
+
+		.macro	busyuart,rd,rx
+1002:		ldr	\rd, [\rx, #UART_LSR << UART_SHIFT]
+		and	\rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE
+		teq	\rd, #UART_LSR_TEMT | UART_LSR_THRE
+		bne	1002b
+		.endm
+
+		/* The UART's don't have any flow control IO's wired up. */
+		.macro	waituart,rd,rx
+		.endm

arch/arm/include/debug/picoxcell.S

@@ -5,10 +5,7 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  *
- * Derived from arch/arm/mach-davinci/include/mach/debug-macro.S to use 32-bit
- * accesses to the 8250.
  */
-#include <linux/serial_reg.h>
 
 #define UART_SHIFT 2
 #define PICOXCELL_UART1_BASE		0x80230000
@@ -19,17 +16,4 @@
 		ldr	\rp, =PICOXCELL_UART1_BASE
 		.endm
 
-		.macro	senduart,rd,rx
+#include "8250_32.S"
-		str	\rd, [\rx, #UART_TX << UART_SHIFT]
-		.endm
-
-		.macro	busyuart,rd,rx
-1002:		ldr	\rd, [\rx, #UART_LSR << UART_SHIFT]
-		and	\rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE
-		teq	\rd, #UART_LSR_TEMT | UART_LSR_THRE
-		bne	1002b
-		.endm
-
-		/* The UART's don't have any flow control IO's wired up. */
-		.macro	waituart,rd,rx
-		.endm

arch/arm/include/debug/socfpga.S

@@ -7,6 +7,9 @@
  * published by the Free Software Foundation.
  */
 
+#define UART_SHIFT 2
+#define DEBUG_LL_UART_OFFSET	0x00002000
+
 		.macro	addruart, rp, rv, tmp
 		mov	\rp, #DEBUG_LL_UART_OFFSET
 		orr	\rp, \rp, #0x00c00000
@@ -14,3 +17,5 @@
 		orr	\rp, \rp, #0xff000000	@ physical base
 		.endm
 
+#include "8250_32.S"
+

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

@@ -18,11 +18,12 @@
 #define HWCAP_THUMBEE	(1 << 11)
 #define HWCAP_NEON	(1 << 12)
 #define HWCAP_VFPv3	(1 << 13)
-#define HWCAP_VFPv3D16	(1 << 14)
+#define HWCAP_VFPv3D16	(1 << 14)	/* also set for VFPv4-D16 */
 #define HWCAP_TLS	(1 << 15)
 #define HWCAP_VFPv4	(1 << 16)
 #define HWCAP_IDIVA	(1 << 17)
 #define HWCAP_IDIVT	(1 << 18)
+#define HWCAP_VFPD32	(1 << 19)	/* set if VFP has 32 regs (not 16) */
 #define HWCAP_IDIV	(HWCAP_IDIVA | HWCAP_IDIVT)
 
 

arch/arm/kernel/irq.c

@@ -34,6 +34,7 @@
 #include <linux/list.h>
 #include <linux/kallsyms.h>
 #include <linux/proc_fs.h>
+#include <linux/export.h>
 
 #include <asm/exception.h>
 #include <asm/mach/arch.h>
@@ -109,6 +110,7 @@ void set_irq_flags(unsigned int irq, unsigned int iflags)
 	/* Order is clear bits in "clr" then set bits in "set" */
 	irq_modify_status(irq, clr, set & ~clr);
 }
+EXPORT_SYMBOL_GPL(set_irq_flags);
 
 void __init init_IRQ(void)
 {

arch/arm/kernel/kprobes-test-arm.c

@@ -366,7 +366,9 @@ void kprobe_arm_test_cases(void)
 	TEST_UNSUPPORTED(".word 0xe04f0392 @ umaal r0, pc, r2, r3")
 	TEST_UNSUPPORTED(".word 0xe0500090 @ undef")
 	TEST_UNSUPPORTED(".word 0xe05fff9f @ undef")
+#endif
 
+#if __LINUX_ARM_ARCH__ >= 7
 	TEST_RRR(  "mls		r0, r",1, VAL1,", r",2, VAL2,", r",3,  VAL3,"")
 	TEST_RRR(  "mlshi	r7, r",8, VAL3,", r",9, VAL1,", r",10, VAL2,"")
 	TEST_RR(   "mls		lr, r",1, VAL2,", r",2, VAL3,", r13")
@@ -456,6 +458,8 @@ void kprobe_arm_test_cases(void)
 	TEST_UNSUPPORTED(".word	0xe1700090") /* Unallocated space */
 #if __LINUX_ARM_ARCH__ >= 6
 	TEST_UNSUPPORTED("ldrex	r2, [sp]")
+#endif
+#if (__LINUX_ARM_ARCH__ >= 7) || defined(CONFIG_CPU_32v6K)
 	TEST_UNSUPPORTED("strexd	r0, r2, r3, [sp]")
 	TEST_UNSUPPORTED("ldrexd	r2, r3, [sp]")
 	TEST_UNSUPPORTED("strexb	r0, r2, [sp]")

arch/arm/kernel/machine_kexec.c

@@ -45,10 +45,9 @@ int machine_kexec_prepare(struct kimage *image)
 	for (i = 0; i < image->nr_segments; i++) {
 		current_segment = &image->segment[i];
 
-		err = memblock_is_region_memory(current_segment->mem,
+		if (!memblock_is_region_memory(current_segment->mem,
-						current_segment->memsz);
+					       current_segment->memsz))
-		if (err)
+			return -EINVAL;
-			return - EINVAL;
 
 		err = get_user(header, (__be32*)current_segment->buf);
 		if (err)

arch/arm/kernel/perf_event.c

@@ -96,6 +96,10 @@ armpmu_event_set_period(struct perf_event *event,
 	s64 period = hwc->sample_period;
 	int ret = 0;
 
+	/* The period may have been changed by PERF_EVENT_IOC_PERIOD */
+	if (unlikely(period != hwc->last_period))
+		left = period - (hwc->last_period - left);
+
 	if (unlikely(left <= -period)) {
 		left = period;
 		local64_set(&hwc->period_left, left);

arch/arm/kernel/sched_clock.c

@@ -107,13 +107,6 @@ static void sched_clock_poll(unsigned long wrap_ticks)
 	update_sched_clock();
 }
 
-void __init setup_sched_clock_needs_suspend(u32 (*read)(void), int bits,
-		unsigned long rate)
-{
-	setup_sched_clock(read, bits, rate);
-	cd.needs_suspend = true;
-}
-
 void __init setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate)
 {
 	unsigned long r, w;
@@ -189,18 +182,15 @@ void __init sched_clock_postinit(void)
 static int sched_clock_suspend(void)
 {
 	sched_clock_poll(sched_clock_timer.data);
-	if (cd.needs_suspend)
 	cd.suspended = true;
 	return 0;
 }
 
 static void sched_clock_resume(void)
 {
-	if (cd.needs_suspend) {
 	cd.epoch_cyc = read_sched_clock();
 	cd.epoch_cyc_copy = cd.epoch_cyc;
 	cd.suspended = false;
-	}
 }
 
 static struct syscore_ops sched_clock_ops = {

arch/arm/kernel/smp.c

@@ -294,18 +294,24 @@ static void percpu_timer_setup(void);
 asmlinkage void __cpuinit secondary_start_kernel(void)
 {
 	struct mm_struct *mm = &init_mm;
-	unsigned int cpu = smp_processor_id();
+	unsigned int cpu;
+
+	/*
+	 * The identity mapping is uncached (strongly ordered), so
+	 * switch away from it before attempting any exclusive accesses.
+	 */
+	cpu_switch_mm(mm->pgd, mm);
+	enter_lazy_tlb(mm, current);
+	local_flush_tlb_all();
 
 	/*
 	 * All kernel threads share the same mm context; grab a
 	 * reference and switch to it.
 	 */
+	cpu = smp_processor_id();
 	atomic_inc(&mm->mm_count);
 	current->active_mm = mm;
 	cpumask_set_cpu(cpu, mm_cpumask(mm));
-	cpu_switch_mm(mm->pgd, mm);
-	enter_lazy_tlb(mm, current);
-	local_flush_tlb_all();
 
 	printk("CPU%u: Booted secondary processor\n", cpu);
 

arch/arm/kernel/smp_twd.c

@@ -42,10 +42,10 @@ static void twd_set_mode(enum clock_event_mode mode,
 
 	switch (mode) {
 	case CLOCK_EVT_MODE_PERIODIC:
-		/* timer load already set up */
 		ctrl = TWD_TIMER_CONTROL_ENABLE | TWD_TIMER_CONTROL_IT_ENABLE
 			| TWD_TIMER_CONTROL_PERIODIC;
-		__raw_writel(twd_timer_rate / HZ, twd_base + TWD_TIMER_LOAD);
+		__raw_writel(DIV_ROUND_CLOSEST(twd_timer_rate, HZ),
+			twd_base + TWD_TIMER_LOAD);
 		break;
 	case CLOCK_EVT_MODE_ONESHOT:
 		/* period set, and timer enabled in 'next_event' hook */

arch/arm/lib/delay.c

@@ -45,6 +45,7 @@ int read_current_timer(unsigned long *timer_val)
 	*timer_val = delay_timer->read_current_timer();
 	return 0;
 }
+EXPORT_SYMBOL_GPL(read_current_timer);
 
 static void __timer_delay(unsigned long cycles)
 {

arch/arm/mach-at91/Kconfig

@@ -21,19 +21,13 @@ config SOC_AT91SAM9
 	bool
 	select CPU_ARM926T
 	select GENERIC_CLOCKEVENTS
+	select MULTI_IRQ_HANDLER
+	select SPARSE_IRQ
 
 menu "Atmel AT91 System-on-Chip"
 
 comment "Atmel AT91 Processor"
 
-config SOC_AT91SAM9
-	bool
-	select AT91_SAM9_SMC
-	select AT91_SAM9_TIME
-	select CPU_ARM926T
-	select MULTI_IRQ_HANDLER
-	select SPARSE_IRQ
-
 config SOC_AT91RM9200
 	bool "AT91RM9200"
 	select CPU_ARM920T

arch/arm/mach-at91/at91rm9200.c

@@ -187,7 +187,7 @@ static struct clk_lookup periph_clocks_lookups[] = {
 	CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk),
 	CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
 	CLKDEV_CON_DEV_ID("pclk", "ssc.2", &ssc2_clk),
-	CLKDEV_CON_DEV_ID(NULL, "i2c-at91rm9200", &twi_clk),
+	CLKDEV_CON_DEV_ID(NULL, "i2c-at91rm9200.0", &twi_clk),
 	/* fake hclk clock */
 	CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk),
 	CLKDEV_CON_ID("pioA", &pioA_clk),

arch/arm/mach-at91/at91rm9200_devices.c

@@ -68,7 +68,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data)
 
 	/* Enable overcurrent notification */
 	for (i = 0; i < data->ports; i++) {
-		if (data->overcurrent_pin[i])
+		if (gpio_is_valid(data->overcurrent_pin[i]))
 			at91_set_gpio_input(data->overcurrent_pin[i], 1);
 	}
 
@@ -479,7 +479,7 @@ static struct i2c_gpio_platform_data pdata = {
 
 static struct platform_device at91rm9200_twi_device = {
 	.name			= "i2c-gpio",
-	.id			= -1,
+	.id			= 0,
 	.dev.platform_data	= &pdata,
 };
 
@@ -512,7 +512,7 @@ static struct resource twi_resources[] = {
 
 static struct platform_device at91rm9200_twi_device = {
 	.name		= "i2c-at91rm9200",
-	.id		= -1,
+	.id		= 0,
 	.resource	= twi_resources,
 	.num_resources	= ARRAY_SIZE(twi_resources),
 };

arch/arm/mach-at91/at91sam9260.c

@@ -211,8 +211,8 @@ static struct clk_lookup periph_clocks_lookups[] = {
 	CLKDEV_CON_DEV_ID("t1_clk", "atmel_tcb.1", &tc4_clk),
 	CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.1", &tc5_clk),
 	CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc_clk),
-	CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9260", &twi_clk),
+	CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9260.0", &twi_clk),
-	CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g20", &twi_clk),
+	CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g20.0", &twi_clk),
 	/* more usart lookup table for DT entries */
 	CLKDEV_CON_DEV_ID("usart", "fffff200.serial", &mck),
 	CLKDEV_CON_DEV_ID("usart", "fffb0000.serial", &usart0_clk),

arch/arm/mach-at91/at91sam9260_devices.c

@@ -72,7 +72,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data)
 
 	/* Enable overcurrent notification */
 	for (i = 0; i < data->ports; i++) {
-		if (data->overcurrent_pin[i])
+		if (gpio_is_valid(data->overcurrent_pin[i]))
 			at91_set_gpio_input(data->overcurrent_pin[i], 1);
 	}
 
@@ -389,7 +389,7 @@ static struct i2c_gpio_platform_data pdata = {
 
 static struct platform_device at91sam9260_twi_device = {
 	.name			= "i2c-gpio",
-	.id			= -1,
+	.id			= 0,
 	.dev.platform_data	= &pdata,
 };
 
@@ -421,7 +421,7 @@ static struct resource twi_resources[] = {
 };
 
 static struct platform_device at91sam9260_twi_device = {
-	.id		= -1,
+	.id		= 0,
 	.resource	= twi_resources,
 	.num_resources	= ARRAY_SIZE(twi_resources),
 };

arch/arm/mach-at91/at91sam9261.c

@@ -178,8 +178,8 @@ static struct clk_lookup periph_clocks_lookups[] = {
 	CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
 	CLKDEV_CON_DEV_ID("pclk", "ssc.2", &ssc2_clk),
 	CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &hck0),
-	CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9261", &twi_clk),
+	CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9261.0", &twi_clk),
-	CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g10", &twi_clk),
+	CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9g10.0", &twi_clk),
 	CLKDEV_CON_ID("pioA", &pioA_clk),
 	CLKDEV_CON_ID("pioB", &pioB_clk),
 	CLKDEV_CON_ID("pioC", &pioC_clk),

arch/arm/mach-at91/at91sam9261_devices.c

@@ -72,7 +72,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data)
 
 	/* Enable overcurrent notification */
 	for (i = 0; i < data->ports; i++) {
-		if (data->overcurrent_pin[i])
+		if (gpio_is_valid(data->overcurrent_pin[i]))
 			at91_set_gpio_input(data->overcurrent_pin[i], 1);
 	}
 
@@ -285,7 +285,7 @@ static struct i2c_gpio_platform_data pdata = {
 
 static struct platform_device at91sam9261_twi_device = {
 	.name			= "i2c-gpio",
-	.id			= -1,
+	.id			= 0,
 	.dev.platform_data	= &pdata,
 };
 
@@ -317,7 +317,7 @@ static struct resource twi_resources[] = {
 };
 
 static struct platform_device at91sam9261_twi_device = {
-	.id		= -1,
+	.id		= 0,
 	.resource	= twi_resources,
 	.num_resources	= ARRAY_SIZE(twi_resources),
 };

arch/arm/mach-at91/at91sam9263.c

@@ -193,7 +193,7 @@ static struct clk_lookup periph_clocks_lookups[] = {
 	CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.0", &spi0_clk),
 	CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.1", &spi1_clk),
 	CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tcb_clk),
-	CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9260", &twi_clk),
+	CLKDEV_CON_DEV_ID(NULL, "i2c-at91sam9260.0", &twi_clk),
 	/* fake hclk clock */
 	CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk),
 	CLKDEV_CON_ID("pioA", &pioA_clk),

arch/arm/mach-at91/at91sam9263_devices.c

@@ -78,7 +78,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data)
 
 	/* Enable overcurrent notification */
 	for (i = 0; i < data->ports; i++) {
-		if (data->overcurrent_pin[i])
+		if (gpio_is_valid(data->overcurrent_pin[i]))
 			at91_set_gpio_input(data->overcurrent_pin[i], 1);
 	}
 
@@ -567,7 +567,7 @@ static struct i2c_gpio_platform_data pdata = {
 
 static struct platform_device at91sam9263_twi_device = {
 	.name			= "i2c-gpio",
-	.id			= -1,
+	.id			= 0,
 	.dev.platform_data	= &pdata,
 };
 
@@ -600,7 +600,7 @@ static struct resource twi_resources[] = {
 
 static struct platform_device at91sam9263_twi_device = {
 	.name		= "i2c-at91sam9260",
-	.id		= -1,
+	.id		= 0,
 	.resource	= twi_resources,
 	.num_resources	= ARRAY_SIZE(twi_resources),
 };

arch/arm/mach-at91/at91sam9g45_devices.c

@@ -1841,8 +1841,8 @@ static struct resource sha_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= AT91SAM9G45_ID_AESTDESSHA,
+		.start	= NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA,
-		.end	= AT91SAM9G45_ID_AESTDESSHA,
+		.end	= NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA,
 		.flags	= IORESOURCE_IRQ,
 	},
 };
@@ -1874,8 +1874,8 @@ static struct resource tdes_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= AT91SAM9G45_ID_AESTDESSHA,
+		.start	= NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA,
-		.end	= AT91SAM9G45_ID_AESTDESSHA,
+		.end	= NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA,
 		.flags	= IORESOURCE_IRQ,
 	},
 };
@@ -1910,8 +1910,8 @@ static struct resource aes_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= AT91SAM9G45_ID_AESTDESSHA,
+		.start	= NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA,
-		.end	= AT91SAM9G45_ID_AESTDESSHA,
+		.end	= NR_IRQS_LEGACY + AT91SAM9G45_ID_AESTDESSHA,
 		.flags	= IORESOURCE_IRQ,
 	},
 };

arch/arm/mach-at91/at91sam9rl_devices.c

@@ -314,7 +314,7 @@ static struct i2c_gpio_platform_data pdata = {
 
 static struct platform_device at91sam9rl_twi_device = {
 	.name			= "i2c-gpio",
-	.id			= -1,
+	.id			= 0,
 	.dev.platform_data	= &pdata,
 };
 
@@ -347,7 +347,7 @@ static struct resource twi_resources[] = {
 
 static struct platform_device at91sam9rl_twi_device = {
 	.name		= "i2c-at91sam9g20",
-	.id		= -1,
+	.id		= 0,
 	.resource	= twi_resources,
 	.num_resources	= ARRAY_SIZE(twi_resources),
 };

arch/arm/mach-at91/at91x40.c

@@ -88,6 +88,6 @@ void __init at91x40_init_interrupts(unsigned int priority[NR_AIC_IRQS])
 	if (!priority)
 		priority = at91x40_default_irq_priority;
 
-	at91_aic_init(priority);
+	at91_aic_init(priority, at91_extern_irq);
 }
 

arch/arm/mach-at91/board-neocore926.c

@@ -129,7 +129,7 @@ static struct spi_board_info neocore926_spi_devices[] = {
 		.max_speed_hz	= 125000 * 16,
 		.bus_num	= 0,
 		.platform_data	= &ads_info,
-		.irq		= AT91SAM9263_ID_IRQ1,
+		.irq		= NR_IRQS_LEGACY + AT91SAM9263_ID_IRQ1,
 	},
 #endif
 };

arch/arm/mach-at91/board-sam9261ek.c

@@ -309,7 +309,7 @@ static struct spi_board_info ek_spi_devices[] = {
 		.max_speed_hz	= 125000 * 26,	/* (max sample rate @ 3V) * (cmd + data + overhead) */
 		.bus_num	= 0,
 		.platform_data	= &ads_info,
-		.irq		= AT91SAM9261_ID_IRQ0,
+		.irq		= NR_IRQS_LEGACY + AT91SAM9261_ID_IRQ0,
 		.controller_data = (void *) AT91_PIN_PA28,	/* CS pin */
 	},
 #endif

arch/arm/mach-at91/board-sam9263ek.c

@@ -132,7 +132,7 @@ static struct spi_board_info ek_spi_devices[] = {
 		.max_speed_hz	= 125000 * 26,	/* (max sample rate @ 3V) * (cmd + data + overhead) */
 		.bus_num	= 0,
 		.platform_data	= &ads_info,
-		.irq		= AT91SAM9263_ID_IRQ1,
+		.irq		= NR_IRQS_LEGACY + AT91SAM9263_ID_IRQ1,
 	},
 #endif
 };

arch/arm/mach-at91/generic.h

@@ -26,7 +26,8 @@ extern void __init at91_dt_initialize(void);
 extern void __init at91_init_irq_default(void);
 extern void __init at91_init_interrupts(unsigned int priority[]);
 extern void __init at91x40_init_interrupts(unsigned int priority[]);
-extern void __init at91_aic_init(unsigned int priority[]);
+extern void __init at91_aic_init(unsigned int priority[],
+				 unsigned int ext_irq_mask);
 extern int  __init at91_aic_of_init(struct device_node *node,
 				    struct device_node *parent);
 extern int  __init at91_aic5_of_init(struct device_node *node,

arch/arm/mach-at91/irq.c

@@ -502,14 +502,19 @@ int __init at91_aic5_of_init(struct device_node *node,
 /*
  * Initialize the AIC interrupt controller.
  */
-void __init at91_aic_init(unsigned int *priority)
+void __init at91_aic_init(unsigned int *priority, unsigned int ext_irq_mask)
 {
 	unsigned int i;
 	int irq_base;
 
-	if (at91_aic_pm_init())
+	at91_extern_irq = kzalloc(BITS_TO_LONGS(n_irqs)
+				  * sizeof(*at91_extern_irq), GFP_KERNEL);
+
+	if (at91_aic_pm_init() || at91_extern_irq == NULL)
 		panic("Unable to allocate bit maps\n");
 
+	*at91_extern_irq = ext_irq_mask;
+
 	at91_aic_base = ioremap(AT91_AIC, 512);
 	if (!at91_aic_base)
 		panic("Unable to ioremap AIC registers\n");

arch/arm/mach-at91/setup.c

@@ -47,7 +47,7 @@ void __init at91_init_irq_default(void)
 void __init at91_init_interrupts(unsigned int *priority)
 {
 	/* Initialize the AIC interrupt controller */
-	at91_aic_init(priority);
+	at91_aic_init(priority, at91_extern_irq);
 
 	/* Enable GPIO interrupts */
 	at91_gpio_irq_setup();
@@ -151,7 +151,7 @@ static void __init soc_detect(u32 dbgu_base)
 	}
 
 	/* at91sam9g10 */
-	if ((cidr & ~AT91_CIDR_EXT) == ARCH_ID_AT91SAM9G10) {
+	if ((socid & ~AT91_CIDR_EXT) == ARCH_ID_AT91SAM9G10) {
 		at91_soc_initdata.type = AT91_SOC_SAM9G10;
 		at91_boot_soc = at91sam9261_soc;
 	}

arch/arm/mach-davinci/dm644x.c

@@ -713,8 +713,7 @@ static int dm644x_venc_setup_clock(enum vpbe_enc_timings_type type,
 		break;
 	case VPBE_ENC_CUSTOM_TIMINGS:
 		if (pclock <= 27000000) {
-			v |= DM644X_VPSS_MUXSEL_PLL2_MODE |
+			v |= DM644X_VPSS_DACCLKEN;
-			     DM644X_VPSS_DACCLKEN;
 			writel(v, DAVINCI_SYSMOD_VIRT(SYSMOD_VPSS_CLKCTL));
 		} else {
 			/*

arch/arm/mach-exynos/common.c

@@ -47,6 +47,7 @@
 #include <plat/fimc-core.h>
 #include <plat/iic-core.h>
 #include <plat/tv-core.h>
+#include <plat/spi-core.h>
 #include <plat/regs-serial.h>
 
 #include "common.h"
@@ -346,6 +347,8 @@ static void __init exynos4_map_io(void)
 
 	s5p_fb_setname(0, "exynos4-fb");
 	s5p_hdmi_setname("exynos4-hdmi");
+
+	s3c64xx_spi_setname("exynos4210-spi");
 }
 
 static void __init exynos5_map_io(void)
@@ -366,6 +369,8 @@ static void __init exynos5_map_io(void)
 	s3c_i2c0_setname("s3c2440-i2c");
 	s3c_i2c1_setname("s3c2440-i2c");
 	s3c_i2c2_setname("s3c2440-i2c");
+
+	s3c64xx_spi_setname("exynos4210-spi");
 }
 
 static void __init exynos4_init_clocks(int xtal)

arch/arm/mach-exynos/dma.c

@@ -275,6 +275,9 @@ static int __init exynos_dma_init(void)
 		exynos_pdma1_pdata.nr_valid_peri =
 			ARRAY_SIZE(exynos4210_pdma1_peri);
 		exynos_pdma1_pdata.peri_id = exynos4210_pdma1_peri;
+
+		if (samsung_rev() == EXYNOS4210_REV_0)
+			exynos_mdma1_device.res.start = EXYNOS4_PA_S_MDMA1;
 	} else if (soc_is_exynos4212() || soc_is_exynos4412()) {
 		exynos_pdma0_pdata.nr_valid_peri =
 			ARRAY_SIZE(exynos4212_pdma0_peri);

arch/arm/mach-exynos/include/mach/map.h

@@ -90,6 +90,7 @@
 
 #define EXYNOS4_PA_MDMA0		0x10810000
 #define EXYNOS4_PA_MDMA1		0x12850000
+#define EXYNOS4_PA_S_MDMA1		0x12840000
 #define EXYNOS4_PA_PDMA0		0x12680000
 #define EXYNOS4_PA_PDMA1		0x12690000
 #define EXYNOS5_PA_MDMA0		0x10800000

arch/arm/mach-exynos/mach-exynos4-dt.c

@@ -99,6 +99,7 @@ static char const *exynos4_dt_compat[] __initdata = {
 
 DT_MACHINE_START(EXYNOS4210_DT, "Samsung Exynos4 (Flattened Device Tree)")
 	/* Maintainer: Thomas Abraham <thomas.abraham@linaro.org> */
+	.smp		= smp_ops(exynos_smp_ops),
 	.init_irq	= exynos4_init_irq,
 	.map_io		= exynos4_dt_map_io,
 	.handle_irq	= gic_handle_irq,

arch/arm/mach-highbank/system.c

@@ -28,6 +28,7 @@ void highbank_restart(char mode, const char *cmd)
 		hignbank_set_pwr_soft_reset();
 
 	scu_power_mode(scu_base_addr, SCU_PM_POWEROFF);
+	while (1)
 		cpu_do_idle();
 }
 

arch/arm/mach-imx/clk-busy.c

@@ -108,7 +108,7 @@ struct clk *imx_clk_busy_divider(const char *name, const char *parent_name,
 	busy->div.hw.init = &init;
 
 	clk = clk_register(NULL, &busy->div.hw);
-	if (!clk)
+	if (IS_ERR(clk))
 		kfree(busy);
 
 	return clk;

arch/arm/mach-imx/clk-gate2.c

@@ -112,7 +112,7 @@ struct clk *clk_register_gate2(struct device *dev, const char *name,
 
 	clk = clk_register(dev, &gate->hw);
 	if (IS_ERR(clk))
-		kfree(clk);
+		kfree(gate);
 
 	return clk;
 }

arch/arm/mach-imx/clk-imx25.c

@@ -127,8 +127,8 @@ int __init mx25_clocks_init(void)
 	clk[esdhc2_ipg_per] = imx_clk_gate("esdhc2_ipg_per", "per4", ccm(CCM_CGCR0),  4);
 	clk[gpt_ipg_per] = imx_clk_gate("gpt_ipg_per", "per5", ccm(CCM_CGCR0),  5);
 	clk[i2c_ipg_per] = imx_clk_gate("i2c_ipg_per", "per6", ccm(CCM_CGCR0),  6);
-	clk[lcdc_ipg_per] = imx_clk_gate("lcdc_ipg_per", "per8", ccm(CCM_CGCR0),  7);
+	clk[lcdc_ipg_per] = imx_clk_gate("lcdc_ipg_per", "per7", ccm(CCM_CGCR0),  7);
-	clk[nfc_ipg_per] = imx_clk_gate("nfc_ipg_per", "ipg_per", ccm(CCM_CGCR0),  8);
+	clk[nfc_ipg_per] = imx_clk_gate("nfc_ipg_per", "per8", ccm(CCM_CGCR0),  8);
 	clk[ssi1_ipg_per] = imx_clk_gate("ssi1_ipg_per", "per13", ccm(CCM_CGCR0), 13);
 	clk[ssi2_ipg_per] = imx_clk_gate("ssi2_ipg_per", "per14", ccm(CCM_CGCR0), 14);
 	clk[uart_ipg_per] = imx_clk_gate("uart_ipg_per", "per15", ccm(CCM_CGCR0), 15);

arch/arm/mach-imx/clk-imx27.c

@@ -109,7 +109,7 @@ int __init mx27_clocks_init(unsigned long fref)
 	clk[per3_div] = imx_clk_divider("per3_div", "mpll_main2", CCM_PCDR1, 16, 6);
 	clk[per4_div] = imx_clk_divider("per4_div", "mpll_main2", CCM_PCDR1, 24, 6);
 	clk[vpu_sel] = imx_clk_mux("vpu_sel", CCM_CSCR, 21, 1, vpu_sel_clks, ARRAY_SIZE(vpu_sel_clks));
-	clk[vpu_div] = imx_clk_divider("vpu_div", "vpu_sel", CCM_PCDR0, 10, 3);
+	clk[vpu_div] = imx_clk_divider("vpu_div", "vpu_sel", CCM_PCDR0, 10, 6);
 	clk[usb_div] = imx_clk_divider("usb_div", "spll", CCM_CSCR, 28, 3);
 	clk[cpu_sel] = imx_clk_mux("cpu_sel", CCM_CSCR, 15, 1, cpu_sel_clks, ARRAY_SIZE(cpu_sel_clks));
 	clk[clko_sel] = imx_clk_mux("clko_sel", CCM_CCSR, 0, 5, clko_sel_clks, ARRAY_SIZE(clko_sel_clks));
@@ -121,7 +121,7 @@ int __init mx27_clocks_init(unsigned long fref)
 	clk[ssi1_sel] = imx_clk_mux("ssi1_sel", CCM_CSCR, 22, 1, ssi_sel_clks, ARRAY_SIZE(ssi_sel_clks));
 	clk[ssi2_sel] = imx_clk_mux("ssi2_sel", CCM_CSCR, 23, 1, ssi_sel_clks, ARRAY_SIZE(ssi_sel_clks));
 	clk[ssi1_div] = imx_clk_divider("ssi1_div", "ssi1_sel", CCM_PCDR0, 16, 6);
-	clk[ssi2_div] = imx_clk_divider("ssi2_div", "ssi2_sel", CCM_PCDR0, 26, 3);
+	clk[ssi2_div] = imx_clk_divider("ssi2_div", "ssi2_sel", CCM_PCDR0, 26, 6);
 	clk[clko_en] = imx_clk_gate("clko_en", "clko_div", CCM_PCCR0, 0);
 	clk[ssi2_ipg_gate] = imx_clk_gate("ssi2_ipg_gate", "ipg", CCM_PCCR0, 0);
 	clk[ssi1_ipg_gate] = imx_clk_gate("ssi1_ipg_gate", "ipg", CCM_PCCR0, 1);

arch/arm/mach-imx/ehci-imx25.c

@@ -30,7 +30,7 @@
 #define MX25_H1_SIC_SHIFT	21
 #define MX25_H1_SIC_MASK	(0x3 << MX25_H1_SIC_SHIFT)
 #define MX25_H1_PP_BIT		(1 << 18)
-#define MX25_H1_PM_BIT		(1 << 8)
+#define MX25_H1_PM_BIT		(1 << 16)
 #define MX25_H1_IPPUE_UP_BIT	(1 << 7)
 #define MX25_H1_IPPUE_DOWN_BIT	(1 << 6)
 #define MX25_H1_TLL_BIT		(1 << 5)

arch/arm/mach-imx/ehci-imx35.c

@@ -30,7 +30,7 @@
 #define MX35_H1_SIC_SHIFT	21
 #define MX35_H1_SIC_MASK	(0x3 << MX35_H1_SIC_SHIFT)
 #define MX35_H1_PP_BIT		(1 << 18)
-#define MX35_H1_PM_BIT		(1 << 8)
+#define MX35_H1_PM_BIT		(1 << 16)
 #define MX35_H1_IPPUE_UP_BIT	(1 << 7)
 #define MX35_H1_IPPUE_DOWN_BIT	(1 << 6)
 #define MX35_H1_TLL_BIT		(1 << 5)

arch/arm/mach-imx/mm-imx3.c

@@ -108,9 +108,8 @@ void __init imx3_init_l2x0(void)
 	}
 
 	l2x0_base = ioremap(MX3x_L2CC_BASE_ADDR, 4096);
-	if (IS_ERR(l2x0_base)) {
+	if (!l2x0_base) {
-		printk(KERN_ERR "remapping L2 cache area failed with %ld\n",
+		printk(KERN_ERR "remapping L2 cache area failed\n");
-				PTR_ERR(l2x0_base));
 		return;
 	}
 

arch/arm/mach-omap2/Kconfig

@@ -11,7 +11,6 @@ config ARCH_OMAP2PLUS_TYPICAL
 	select I2C_OMAP
 	select MENELAUS if ARCH_OMAP2
 	select NEON if ARCH_OMAP3 || ARCH_OMAP4 || SOC_OMAP5
-	select PINCTRL
 	select PM_RUNTIME
 	select REGULATOR
 	select SERIAL_OMAP

arch/arm/mach-omap2/board-igep0020.c

@@ -580,6 +580,11 @@ static void __init igep_wlan_bt_init(void)
 	} else
 		return;
 
+	/* Make sure that the GPIO pins are muxed correctly */
+	omap_mux_init_gpio(igep_wlan_bt_gpios[0].gpio, OMAP_PIN_OUTPUT);
+	omap_mux_init_gpio(igep_wlan_bt_gpios[1].gpio, OMAP_PIN_OUTPUT);
+	omap_mux_init_gpio(igep_wlan_bt_gpios[2].gpio, OMAP_PIN_OUTPUT);
+
 	err = gpio_request_array(igep_wlan_bt_gpios,
 				 ARRAY_SIZE(igep_wlan_bt_gpios));
 	if (err) {

arch/arm/mach-omap2/board-omap3beagle.c

@@ -24,6 +24,7 @@
 #include <linux/input.h>
 #include <linux/gpio_keys.h>
 #include <linux/opp.h>
+#include <linux/cpu.h>
 
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
@@ -444,27 +445,31 @@ static struct omap_board_mux board_mux[] __initdata = {
 };
 #endif
 
-static void __init beagle_opp_init(void)
+static int __init beagle_opp_init(void)
 {
 	int r = 0;
 
-	/* Initialize the omap3 opp table */
+	if (!machine_is_omap3_beagle())
-	if (omap3_opp_init()) {
+		return 0;
+
+	/* Initialize the omap3 opp table if not already created. */
+	r = omap3_opp_init();
+	if (IS_ERR_VALUE(r) && (r != -EEXIST)) {
 		pr_err("%s: opp default init failed\n", __func__);
-		return;
+		return r;
 	}
 
 	/* Custom OPP enabled for all xM versions */
 	if (cpu_is_omap3630()) {
 		struct device *mpu_dev, *iva_dev;
 
-		mpu_dev = omap_device_get_by_hwmod_name("mpu");
+		mpu_dev = get_cpu_device(0);
 		iva_dev = omap_device_get_by_hwmod_name("iva");
 
 		if (IS_ERR(mpu_dev) || IS_ERR(iva_dev)) {
 			pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
 				__func__, mpu_dev, iva_dev);
-			return;
+			return -ENODEV;
 		}
 		/* Enable MPU 1GHz and lower opps */
 		r = opp_enable(mpu_dev, 800000000);
@@ -484,8 +489,9 @@ static void __init beagle_opp_init(void)
 			opp_disable(iva_dev, 660000000);
 		}
 	}
-	return;
+	return 0;
 }
+device_initcall(beagle_opp_init);
 
 static void __init omap3_beagle_init(void)
 {
@@ -522,8 +528,6 @@ static void __init omap3_beagle_init(void)
 	/* Ensure SDRC pins are mux'd for self-refresh */
 	omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
 	omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
-
-	beagle_opp_init();
 }
 
 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")

arch/arm/mach-omap2/clock33xx_data.c

@@ -1073,6 +1073,8 @@ static struct omap_clk am33xx_clks[] = {
 	CLK(NULL,	"gfx_fck_div_ck",	&gfx_fck_div_ck,	CK_AM33XX),
 	CLK(NULL,	"sysclkout_pre_ck",	&sysclkout_pre_ck,	CK_AM33XX),
 	CLK(NULL,	"clkout2_ck",		&clkout2_ck,	CK_AM33XX),
+	CLK(NULL,	"timer_32k_ck",		&clkdiv32k_ick,	CK_AM33XX),
+	CLK(NULL,	"timer_sys_ck",		&sys_clkin_ck,	CK_AM33XX),
 };
 
 int __init am33xx_clk_init(void)

arch/arm/mach-omap2/clockdomains44xx_data.c

@@ -359,7 +359,7 @@ static struct clockdomain iss_44xx_clkdm = {
 	.clkdm_offs	  = OMAP4430_CM2_CAM_CAM_CDOFFS,
 	.wkdep_srcs	  = iss_wkup_sleep_deps,
 	.sleepdep_srcs	  = iss_wkup_sleep_deps,
-	.flags		  = CLKDM_CAN_HWSUP_SWSUP,
+	.flags		  = CLKDM_CAN_SWSUP,
 };
 
 static struct clockdomain l3_dss_44xx_clkdm = {

arch/arm/mach-omap2/common-board-devices.c

@@ -64,6 +64,13 @@ void __init omap_ads7846_init(int bus_num, int gpio_pendown, int gpio_debounce,
 	struct spi_board_info *spi_bi = &ads7846_spi_board_info;
 	int err;
 
+	/*
+	 * If a board defines get_pendown_state() function, request the pendown
+	 * GPIO and set the GPIO debounce time.
+	 * If a board does not define the get_pendown_state() function, then
+	 * the ads7846 driver will setup the pendown GPIO itself.
+	 */
+	if (board_pdata && board_pdata->get_pendown_state) {
 		err = gpio_request_one(gpio_pendown, GPIOF_IN, "TSPenDown");
 		if (err) {
 			pr_err("Couldn't obtain gpio for TSPenDown: %d\n", err);
@@ -73,21 +80,20 @@ void __init omap_ads7846_init(int bus_num, int gpio_pendown, int gpio_debounce,
 		if (gpio_debounce)
 			gpio_set_debounce(gpio_pendown, gpio_debounce);
 
+		gpio_export(gpio_pendown, 0);
+	}
+
 	spi_bi->bus_num	= bus_num;
 	spi_bi->irq	= gpio_to_irq(gpio_pendown);
 
+	ads7846_config.gpio_pendown = gpio_pendown;
+
 	if (board_pdata) {
 		board_pdata->gpio_pendown = gpio_pendown;
+		board_pdata->gpio_pendown_debounce = gpio_debounce;
 		spi_bi->platform_data = board_pdata;
-		if (board_pdata->get_pendown_state)
-			gpio_export(gpio_pendown, 0);
-	} else {
-		ads7846_config.gpio_pendown = gpio_pendown;
 	}
 
-	if (!board_pdata || (board_pdata && !board_pdata->get_pendown_state))
-		gpio_free(gpio_pendown);
-
 	spi_register_board_info(&ads7846_spi_board_info, 1);
 }
 #else

arch/arm/mach-omap2/devices.c

@@ -19,6 +19,7 @@
 #include <linux/of.h>
 #include <linux/pinctrl/machine.h>
 #include <linux/platform_data/omap4-keypad.h>
+#include <linux/platform_data/omap_ocp2scp.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/map.h>
@@ -613,6 +614,83 @@ static void omap_init_vout(void)
 static inline void omap_init_vout(void) {}
 #endif
 
+#if defined(CONFIG_OMAP_OCP2SCP) || defined(CONFIG_OMAP_OCP2SCP_MODULE)
+static int count_ocp2scp_devices(struct omap_ocp2scp_dev *ocp2scp_dev)
+{
+	int cnt	= 0;
+
+	while (ocp2scp_dev->drv_name != NULL) {
+		cnt++;
+		ocp2scp_dev++;
+	}
+
+	return cnt;
+}
+
+static void omap_init_ocp2scp(void)
+{
+	struct omap_hwmod	*oh;
+	struct platform_device	*pdev;
+	int			bus_id = -1, dev_cnt = 0, i;
+	struct omap_ocp2scp_dev	*ocp2scp_dev;
+	const char		*oh_name, *name;
+	struct omap_ocp2scp_platform_data *pdata;
+
+	if (!cpu_is_omap44xx())
+		return;
+
+	oh_name = "ocp2scp_usb_phy";
+	name	= "omap-ocp2scp";
+
+	oh = omap_hwmod_lookup(oh_name);
+	if (!oh) {
+		pr_err("%s: could not find omap_hwmod for %s\n", __func__,
+								oh_name);
+		return;
+	}
+
+	pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
+	if (!pdata) {
+		pr_err("%s: No memory for ocp2scp pdata\n", __func__);
+		return;
+	}
+
+	ocp2scp_dev = oh->dev_attr;
+	dev_cnt = count_ocp2scp_devices(ocp2scp_dev);
+
+	if (!dev_cnt) {
+		pr_err("%s: No devices connected to ocp2scp\n", __func__);
+		kfree(pdata);
+		return;
+	}
+
+	pdata->devices = kzalloc(sizeof(struct omap_ocp2scp_dev *)
+					* dev_cnt, GFP_KERNEL);
+	if (!pdata->devices) {
+		pr_err("%s: No memory for ocp2scp pdata devices\n", __func__);
+		kfree(pdata);
+		return;
+	}
+
+	for (i = 0; i < dev_cnt; i++, ocp2scp_dev++)
+		pdata->devices[i] = ocp2scp_dev;
+
+	pdata->dev_cnt	= dev_cnt;
+
+	pdev = omap_device_build(name, bus_id, oh, pdata, sizeof(*pdata), NULL,
+								0, false);
+	if (IS_ERR(pdev)) {
+		pr_err("Could not build omap_device for %s %s\n",
+						name, oh_name);
+		kfree(pdata->devices);
+		kfree(pdata);
+		return;
+	}
+}
+#else
+static inline void omap_init_ocp2scp(void) { }
+#endif
+
 /*-------------------------------------------------------------------------*/
 
 static int __init omap2_init_devices(void)
@@ -640,6 +718,7 @@ static int __init omap2_init_devices(void)
 	omap_init_sham();
 	omap_init_aes();
 	omap_init_vout();
+	omap_init_ocp2scp();
 
 	return 0;
 }

arch/arm/mach-omap2/mux34xx.c

@@ -614,16 +614,16 @@ static struct omap_mux __initdata omap3_muxmodes[] = {
 		"sys_off_mode", NULL, NULL, NULL,
 		"gpio_9", NULL, NULL, "safe_mode"),
 	_OMAP3_MUXENTRY(UART1_CTS, 150,
-		"uart1_cts", NULL, NULL, NULL,
+		"uart1_cts", "ssi1_rdy_tx", NULL, NULL,
 		"gpio_150", "hsusb3_tll_clk", NULL, "safe_mode"),
 	_OMAP3_MUXENTRY(UART1_RTS, 149,
-		"uart1_rts", NULL, NULL, NULL,
+		"uart1_rts", "ssi1_flag_tx", NULL, NULL,
 		"gpio_149", NULL, NULL, "safe_mode"),
 	_OMAP3_MUXENTRY(UART1_RX, 151,
-		"uart1_rx", NULL, "mcbsp1_clkr", "mcspi4_clk",
+		"uart1_rx", "ss1_wake_tx", "mcbsp1_clkr", "mcspi4_clk",
 		"gpio_151", NULL, NULL, "safe_mode"),
 	_OMAP3_MUXENTRY(UART1_TX, 148,
-		"uart1_tx", NULL, NULL, NULL,
+		"uart1_tx", "ssi1_dat_tx", NULL, NULL,
 		"gpio_148", NULL, NULL, "safe_mode"),
 	_OMAP3_MUXENTRY(UART2_CTS, 144,
 		"uart2_cts", "mcbsp3_dx", "gpt9_pwm_evt", NULL,

arch/arm/mach-omap2/omap_hwmod.c

@@ -421,6 +421,38 @@ static int _set_softreset(struct omap_hwmod *oh, u32 *v)
 	return 0;
 }
 
+/**
+ * _wait_softreset_complete - wait for an OCP softreset to complete
+ * @oh: struct omap_hwmod * to wait on
+ *
+ * Wait until the IP block represented by @oh reports that its OCP
+ * softreset is complete.  This can be triggered by software (see
+ * _ocp_softreset()) or by hardware upon returning from off-mode (one
+ * example is HSMMC).  Waits for up to MAX_MODULE_SOFTRESET_WAIT
+ * microseconds.  Returns the number of microseconds waited.
+ */
+static int _wait_softreset_complete(struct omap_hwmod *oh)
+{
+	struct omap_hwmod_class_sysconfig *sysc;
+	u32 softrst_mask;
+	int c = 0;
+
+	sysc = oh->class->sysc;
+
+	if (sysc->sysc_flags & SYSS_HAS_RESET_STATUS)
+		omap_test_timeout((omap_hwmod_read(oh, sysc->syss_offs)
+				   & SYSS_RESETDONE_MASK),
+				  MAX_MODULE_SOFTRESET_WAIT, c);
+	else if (sysc->sysc_flags & SYSC_HAS_RESET_STATUS) {
+		softrst_mask = (0x1 << sysc->sysc_fields->srst_shift);
+		omap_test_timeout(!(omap_hwmod_read(oh, sysc->sysc_offs)
+				    & softrst_mask),
+				  MAX_MODULE_SOFTRESET_WAIT, c);
+	}
+
+	return c;
+}
+
 /**
  * _set_dmadisable: set OCP_SYSCONFIG.DMADISABLE bit in @v
  * @oh: struct omap_hwmod *
@@ -1282,6 +1314,18 @@ static void _enable_sysc(struct omap_hwmod *oh)
 	if (!oh->class->sysc)
 		return;
 
+	/*
+	 * Wait until reset has completed, this is needed as the IP
+	 * block is reset automatically by hardware in some cases
+	 * (off-mode for example), and the drivers require the
+	 * IP to be ready when they access it
+	 */
+	if (oh->flags & HWMOD_CONTROL_OPT_CLKS_IN_RESET)
+		_enable_optional_clocks(oh);
+	_wait_softreset_complete(oh);
+	if (oh->flags & HWMOD_CONTROL_OPT_CLKS_IN_RESET)
+		_disable_optional_clocks(oh);
+
 	v = oh->_sysc_cache;
 	sf = oh->class->sysc->sysc_flags;
 
@@ -1804,7 +1848,7 @@ static int _am33xx_disable_module(struct omap_hwmod *oh)
  */
 static int _ocp_softreset(struct omap_hwmod *oh)
 {
-	u32 v, softrst_mask;
+	u32 v;
 	int c = 0;
 	int ret = 0;
 
@@ -1834,19 +1878,7 @@ static int _ocp_softreset(struct omap_hwmod *oh)
 	if (oh->class->sysc->srst_udelay)
 		udelay(oh->class->sysc->srst_udelay);
 
-	if (oh->class->sysc->sysc_flags & SYSS_HAS_RESET_STATUS)
+	c = _wait_softreset_complete(oh);
-		omap_test_timeout((omap_hwmod_read(oh,
-						    oh->class->sysc->syss_offs)
-				   & SYSS_RESETDONE_MASK),
-				  MAX_MODULE_SOFTRESET_WAIT, c);
-	else if (oh->class->sysc->sysc_flags & SYSC_HAS_RESET_STATUS) {
-		softrst_mask = (0x1 << oh->class->sysc->sysc_fields->srst_shift);
-		omap_test_timeout(!(omap_hwmod_read(oh,
-						     oh->class->sysc->sysc_offs)
-				   & softrst_mask),
-				  MAX_MODULE_SOFTRESET_WAIT, c);
-	}
-
 	if (c == MAX_MODULE_SOFTRESET_WAIT)
 		pr_warning("omap_hwmod: %s: softreset failed (waited %d usec)\n",
 			   oh->name, MAX_MODULE_SOFTRESET_WAIT);
@@ -2352,6 +2384,9 @@ static int __init _setup_reset(struct omap_hwmod *oh)
 	if (oh->_state != _HWMOD_STATE_INITIALIZED)
 		return -EINVAL;
 
+	if (oh->flags & HWMOD_EXT_OPT_MAIN_CLK)
+		return -EPERM;
+
 	if (oh->rst_lines_cnt == 0) {
 		r = _enable(oh);
 		if (r) {

arch/arm/mach-omap2/omap_hwmod_44xx_data.c

@@ -21,6 +21,7 @@
 #include <linux/io.h>
 #include <linux/platform_data/gpio-omap.h>
 #include <linux/power/smartreflex.h>
+#include <linux/platform_data/omap_ocp2scp.h>
 
 #include <plat/omap_hwmod.h>
 #include <plat/i2c.h>
@@ -2125,6 +2126,14 @@ static struct omap_hwmod omap44xx_mcpdm_hwmod = {
 	.name		= "mcpdm",
 	.class		= &omap44xx_mcpdm_hwmod_class,
 	.clkdm_name	= "abe_clkdm",
+	/*
+	 * It's suspected that the McPDM requires an off-chip main
+	 * functional clock, controlled via I2C.  This IP block is
+	 * currently reset very early during boot, before I2C is
+	 * available, so it doesn't seem that we have any choice in
+	 * the kernel other than to avoid resetting it.
+	 */
+	.flags		= HWMOD_EXT_OPT_MAIN_CLK,
 	.mpu_irqs	= omap44xx_mcpdm_irqs,
 	.sdma_reqs	= omap44xx_mcpdm_sdma_reqs,
 	.main_clk	= "mcpdm_fck",
@@ -2681,6 +2690,32 @@ static struct omap_hwmod_class omap44xx_ocp2scp_hwmod_class = {
 	.sysc	= &omap44xx_ocp2scp_sysc,
 };
 
+/* ocp2scp dev_attr */
+static struct resource omap44xx_usb_phy_and_pll_addrs[] = {
+	{
+		.name		= "usb_phy",
+		.start		= 0x4a0ad080,
+		.end		= 0x4a0ae000,
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		/* XXX: Remove this once control module driver is in place */
+		.name		= "ctrl_dev",
+		.start		= 0x4a002300,
+		.end		= 0x4a002303,
+		.flags		= IORESOURCE_MEM,
+	},
+	{ }
+};
+
+static struct omap_ocp2scp_dev ocp2scp_dev_attr[] = {
+	{
+		.drv_name       = "omap-usb2",
+		.res		= omap44xx_usb_phy_and_pll_addrs,
+	},
+	{ }
+};
+
 /* ocp2scp_usb_phy */
 static struct omap_hwmod omap44xx_ocp2scp_usb_phy_hwmod = {
 	.name		= "ocp2scp_usb_phy",
@@ -2694,6 +2729,7 @@ static struct omap_hwmod omap44xx_ocp2scp_usb_phy_hwmod = {
 			.modulemode   = MODULEMODE_HWCTRL,
 		},
 	},
+	.dev_attr	= ocp2scp_dev_attr,
 };
 
 /*

arch/arm/mach-omap2/pm.h

@@ -91,6 +91,7 @@ extern void omap3_save_scratchpad_contents(void);
 
 #define PM_RTA_ERRATUM_i608		(1 << 0)
 #define PM_SDRC_WAKEUP_ERRATUM_i583	(1 << 1)
+#define PM_PER_MEMORIES_ERRATUM_i582	(1 << 2)
 
 #if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3)
 extern u16 pm34xx_errata;

arch/arm/mach-omap2/pm34xx.c

@@ -652,14 +652,17 @@ static void __init pm_errata_configure(void)
 		/* Enable the l2 cache toggling in sleep logic */
 		enable_omap3630_toggle_l2_on_restore();
 		if (omap_rev() < OMAP3630_REV_ES1_2)
-			pm34xx_errata |= PM_SDRC_WAKEUP_ERRATUM_i583;
+			pm34xx_errata |= (PM_SDRC_WAKEUP_ERRATUM_i583 |
+					  PM_PER_MEMORIES_ERRATUM_i582);
+	} else if (cpu_is_omap34xx()) {
+		pm34xx_errata |= PM_PER_MEMORIES_ERRATUM_i582;
 	}
 }
 
 int __init omap3_pm_init(void)
 {
 	struct power_state *pwrst, *tmp;
-	struct clockdomain *neon_clkdm, *mpu_clkdm;
+	struct clockdomain *neon_clkdm, *mpu_clkdm, *per_clkdm, *wkup_clkdm;
 	int ret;
 
 	if (!omap3_has_io_chain_ctrl())
@@ -711,6 +714,8 @@ int __init omap3_pm_init(void)
 
 	neon_clkdm = clkdm_lookup("neon_clkdm");
 	mpu_clkdm = clkdm_lookup("mpu_clkdm");
+	per_clkdm = clkdm_lookup("per_clkdm");
+	wkup_clkdm = clkdm_lookup("wkup_clkdm");
 
 #ifdef CONFIG_SUSPEND
 	omap_pm_suspend = omap3_pm_suspend;
@@ -727,6 +732,27 @@ int __init omap3_pm_init(void)
 	if (IS_PM34XX_ERRATUM(PM_RTA_ERRATUM_i608))
 		omap3630_ctrl_disable_rta();
 
+	/*
+	 * The UART3/4 FIFO and the sidetone memory in McBSP2/3 are
+	 * not correctly reset when the PER powerdomain comes back
+	 * from OFF or OSWR when the CORE powerdomain is kept active.
+	 * See OMAP36xx Erratum i582 "PER Domain reset issue after
+	 * Domain-OFF/OSWR Wakeup".  This wakeup dependency is not a
+	 * complete workaround.  The kernel must also prevent the PER
+	 * powerdomain from going to OSWR/OFF while the CORE
+	 * powerdomain is not going to OSWR/OFF.  And if PER last
+	 * power state was off while CORE last power state was ON, the
+	 * UART3/4 and McBSP2/3 SIDETONE devices need to run a
+	 * self-test using their loopback tests; if that fails, those
+	 * devices are unusable until the PER/CORE can complete a transition
+	 * from ON to OSWR/OFF and then back to ON.
+	 *
+	 * XXX Technically this workaround is only needed if off-mode
+	 * or OSWR is enabled.
+	 */
+	if (IS_PM34XX_ERRATUM(PM_PER_MEMORIES_ERRATUM_i582))
+		clkdm_add_wkdep(per_clkdm, wkup_clkdm);
+
 	clkdm_add_wkdep(neon_clkdm, mpu_clkdm);
 	if (omap_type() != OMAP2_DEVICE_TYPE_GP) {
 		omap3_secure_ram_storage =

arch/arm/mach-omap2/serial.c

@@ -329,6 +329,11 @@ void __init omap_serial_init_port(struct omap_board_data *bdata,
 
 	oh->mux = omap_hwmod_mux_init(bdata->pads, bdata->pads_cnt);
 
+	if (console_uart_id == bdata->id) {
+		omap_device_enable(pdev);
+		pm_runtime_set_active(&pdev->dev);
+	}
+
 	oh->dev_attr = uart;
 
 	if (((cpu_is_omap34xx() || cpu_is_omap44xx()) && bdata->pads)

arch/arm/mach-omap2/twl-common.c

@@ -73,6 +73,7 @@ void __init omap4_pmic_init(const char *pmic_type,
 {
 	/* PMIC part*/
 	omap_mux_init_signal("sys_nirq1", OMAP_PIN_INPUT_PULLUP | OMAP_PIN_OFF_WAKEUPENABLE);
+	omap_mux_init_signal("fref_clk0_out.sys_drm_msecure", OMAP_PIN_OUTPUT);
 	omap_pmic_init(1, 400, pmic_type, 7 + OMAP44XX_IRQ_GIC_START, pmic_data);
 
 	/* Register additional devices on i2c1 bus if needed */
@@ -366,7 +367,7 @@ static struct regulator_init_data omap4_clk32kg_idata = {
 };
 
 static struct regulator_consumer_supply omap4_vdd1_supply[] = {
-	REGULATOR_SUPPLY("vcc", "mpu.0"),
+	REGULATOR_SUPPLY("vcc", "cpu0"),
 };
 
 static struct regulator_consumer_supply omap4_vdd2_supply[] = {