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ARM: Kconfig: clean up platform selection

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The top-level platform selection is mostly meaningless these days after
almost everything is sorted below the CONFIG_ARCH_MULTIPLATFORM, with
the only exception being the 20+ year old StrongARM based machines.

Make this more consistent by removing the entire choice statement and
moving the StrongARM specific options into regular platform specific
Kconfig files.

The three platforms (footbridge, rpc and sa1100) are still mutually
exclusive and cannot coexist with other ARMv4/v5 machines, but since
there are only three of them and we will not add more, this can be
expressed using Kconfig 'depends on' statements.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2022-07-26 14:16:37 +02:00
parent 8c7d29a753
commit 6fd09c9afa
22 changed files with 109 additions and 111 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

114
arch/arm/Kconfig
View File

@ -28,7 +28,6 @@ config ARM
select ARCH_HAS_GCOV_PROFILE_ALL
select ARCH_KEEP_MEMBLOCK
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_NO_SG_CHAIN if !ARM_HAS_SG_CHAIN
select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX
select ARCH_OPTIONAL_KERNEL_RWX_DEFAULT if CPU_V7
select ARCH_SUPPORTS_ATOMIC_RMW
@ -42,6 +41,7 @@ config ARM
select ARCH_WANT_LD_ORPHAN_WARN
select BINFMT_FLAT_ARGVP_ENVP_ON_STACK
select BUILDTIME_TABLE_SORT if MMU
select COMMON_CLK if !(ARCH_RPC || ARCH_FOOTBRIDGE)
select CLONE_BACKWARDS
select CPU_PM if SUSPEND || CPU_IDLE
select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
@ -110,6 +110,7 @@ config ARM
select HAVE_MOD_ARCH_SPECIFIC
select HAVE_NMI
select HAVE_OPTPROBES if !THUMB2_KERNEL
select HAVE_PCI
select HAVE_PERF_EVENTS
select HAVE_PERF_REGS
select HAVE_PERF_USER_STACK_DUMP
@ -126,13 +127,17 @@ config ARM
select OF_EARLY_FLATTREE if OF
select OLD_SIGACTION
select OLD_SIGSUSPEND3
select PCI_DOMAINS_GENERIC if PCI
select PCI_SYSCALL if PCI
select PERF_USE_VMALLOC
select RTC_LIB
select SPARSE_IRQ if !(ARCH_FOOTBRIDGE || ARCH_RPC)
select SYS_SUPPORTS_APM_EMULATION
select THREAD_INFO_IN_TASK
select TIMER_OF if OF
select HAVE_ARCH_VMAP_STACK if MMU && ARM_HAS_GROUP_RELOCS
select TRACE_IRQFLAGS_SUPPORT if !CPU_V7M
select USE_OF if !(ARCH_FOOTBRIDGE || ARCH_RPC || ARCH_SA1100)
# Above selects are sorted alphabetically; please add new ones
# according to that. Thanks.
help
@ -154,12 +159,8 @@ config ARM_HAS_GROUP_RELOCS
which is usually sufficient, but not for allyesconfig, so we disable
this feature when doing compile testing.
config ARM_HAS_SG_CHAIN
bool
config ARM_DMA_USE_IOMMU
bool
select ARM_HAS_SG_CHAIN
select NEED_SG_DMA_LENGTH
if ARM_DMA_USE_IOMMU
@ -307,13 +308,8 @@ config MMU
config ARM_SINGLE_ARMV7M
def_bool !MMU
select ARM_NVIC
select AUTO_ZRELADDR
select TIMER_OF
select COMMON_CLK
select CPU_V7M
select NO_IOPORT_MAP
select SPARSE_IRQ
select USE_OF
config ARCH_MMAP_RND_BITS_MIN
default 8
@ -323,94 +319,19 @@ config ARCH_MMAP_RND_BITS_MAX
default 15 if PAGE_OFFSET=0x80000000
default 16
#
# The "ARM system type" choice list is ordered alphabetically by option
# text. Please add new entries in the option alphabetic order.
#
choice
prompt "ARM system type"
depends on MMU
default ARCH_MULTIPLATFORM
config ARCH_MULTIPLATFORM
bool "Allow multiple platforms to be selected"
select ARCH_FLATMEM_ENABLE
select ARCH_SPARSEMEM_ENABLE
select ARCH_SELECT_MEMORY_MODEL
select ARM_HAS_SG_CHAIN
select ARM_PATCH_PHYS_VIRT
select AUTO_ZRELADDR
select TIMER_OF
select COMMON_CLK
select HAVE_PCI
select PCI_DOMAINS_GENERIC if PCI
select SPARSE_IRQ
select USE_OF
def_bool MMU && !(ARCH_FOOTBRIDGE || ARCH_RPC || ARCH_SA1100)
config ARCH_FOOTBRIDGE
bool "FootBridge"
depends on CPU_LITTLE_ENDIAN
depends on ATAGS
select CPU_SA110
select FOOTBRIDGE
select NEED_MACH_MEMORY_H
help
Support for systems based on the DC21285 companion chip
("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
config ARCH_RPC
bool "RiscPC"
depends on !CC_IS_CLANG && GCC_VERSION < 90100 && GCC_VERSION >= 60000
depends on CPU_LITTLE_ENDIAN
depends on ATAGS
select ARCH_ACORN
select ARCH_MAY_HAVE_PC_FDC
select ARCH_SPARSEMEM_ENABLE
select ARM_HAS_SG_CHAIN
select CPU_SA110
select FIQ
select HAVE_PATA_PLATFORM
select ISA_DMA_API
select LEGACY_TIMER_TICK
select NEED_MACH_IO_H
select NEED_MACH_MEMORY_H
select NO_IOPORT_MAP
help
On the Acorn Risc-PC, Linux can support the internal IDE disk and
CD-ROM interface, serial and parallel port, and the floppy drive.
config ARCH_SA1100
bool "SA1100-based"
depends on CPU_LITTLE_ENDIAN
depends on ATAGS
select ARCH_MTD_XIP
select ARCH_SPARSEMEM_ENABLE
select CLKSRC_MMIO
select CLKSRC_PXA
select TIMER_OF if OF
select COMMON_CLK
select CPU_FREQ
select CPU_SA1100
select GPIOLIB
select IRQ_DOMAIN
select ISA
select NEED_MACH_MEMORY_H
select SPARSE_IRQ
help
Support for StrongARM 11x0 based boards.
endchoice
menu "Multiple platform selection"
depends on ARCH_MULTIPLATFORM
menu "Platform selection"
depends on MMU
comment "CPU Core family selection"
config ARCH_MULTI_V4
bool "ARMv4 based platforms (FA526)"
bool "ARMv4 based platforms (FA526, StrongARM)"
depends on !ARCH_MULTI_V6_V7
select ARCH_MULTI_V4_V5
select CPU_FA526
select CPU_FA526 if !(CPU_SA110 || CPU_SA1100)
config ARCH_MULTI_V4T
bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
@ -472,7 +393,6 @@ config ARCH_AIROHA
select ARM_GIC_V3
select ARM_PSCI
select HAVE_ARM_ARCH_TIMER
select COMMON_CLK
help
Support for Airoha EN7523 SoCs
@ -573,6 +493,8 @@ source "arch/arm/mach-rda/Kconfig"
source "arch/arm/mach-realtek/Kconfig"
source "arch/arm/mach-rpc/Kconfig"
source "arch/arm/mach-rockchip/Kconfig"
source "arch/arm/mach-s3c/Kconfig"
@ -638,7 +560,6 @@ config ARCH_ACORN
config PLAT_ORION
bool
select CLKSRC_MMIO
select COMMON_CLK
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
@ -1358,13 +1279,13 @@ config OABI_COMPAT
at all). If in doubt say N.
config ARCH_SELECT_MEMORY_MODEL
bool
def_bool y
config ARCH_FLATMEM_ENABLE
bool
def_bool !(ARCH_RPC || ARCH_SA1100)
config ARCH_SPARSEMEM_ENABLE
bool
def_bool !ARCH_FOOTBRIDGE
select SPARSEMEM_STATIC if SPARSEMEM
config HIGHMEM
@ -1772,7 +1693,8 @@ config CRASH_DUMP
For more details see Documentation/admin-guide/kdump/kdump.rst
config AUTO_ZRELADDR
bool "Auto calculation of the decompressed kernel image address"
bool "Auto calculation of the decompressed kernel image address" if !ARCH_MULTIPLATFORM
default !(ARCH_FOOTBRIDGE || ARCH_RPC || ARCH_SA1100)
help
ZRELADDR is the physical address where the decompressed kernel
image will be placed. If AUTO_ZRELADDR is selected, the address

7
arch/arm/Kconfig.debug
View File

@ -1904,7 +1904,7 @@ config DEBUG_UART_8250_PALMCHIP
config DEBUG_UNCOMPRESS
bool "Enable decompressor debugging via DEBUG_LL output"
depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
depends on !(ARCH_FOOTBRIDGE || ARCH_RPC || ARCH_SA1100)
depends on DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \
(!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \
!DEBUG_BRCMSTB_UART && !DEBUG_SEMIHOSTING
@ -1921,9 +1921,8 @@ config DEBUG_UNCOMPRESS
config UNCOMPRESS_INCLUDE
string
default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \
PLAT_SAMSUNG || ARM_SINGLE_ARMV7M
default "mach/uncompress.h"
default "mach/uncompress.h" if ARCH_FOOTBRIDGE || ARCH_RPC || ARCH_SA1100
default "debug/uncompress.h"
config EARLY_PRINTK
bool "Early printk"

2
arch/arm/configs/assabet_defconfig
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@ -1,6 +1,8 @@
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_BLK_DEV_INITRD=y
CONFIG_ARCH_MULTI_V4=y
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_SA1100=y
CONFIG_SA1100_ASSABET=y
CONFIG_CMDLINE="mem=32M console=ttySA0,38400n8 initrd=0xc0800000,3M root=/dev/ram"

2
arch/arm/configs/badge4_defconfig
View File

@ -1,5 +1,7 @@
CONFIG_LOG_BUF_SHIFT=14
CONFIG_EXPERT=y
CONFIG_ARCH_MULTI_V4=y
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_SA1100=y
CONFIG_SA1100_BADGE4=y
CONFIG_UNUSED_BOARD_FILES=y

2
arch/arm/configs/cerfcube_defconfig
View File

@ -1,6 +1,8 @@
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_ARCH_MULTI_V4=y
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_SA1100=y
CONFIG_SA1100_CERF=y
CONFIG_SA1100_CERF_FLASH_16MB=y

2
arch/arm/configs/collie_defconfig
View File

@ -5,6 +5,8 @@ CONFIG_BLK_DEV_INITRD=y
CONFIG_EXPERT=y
# CONFIG_BASE_FULL is not set
# CONFIG_EPOLL is not set
CONFIG_ARCH_MULTI_V4=y
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_SA1100=y
CONFIG_SA1100_COLLIE=y
CONFIG_CMDLINE="noinitrd root=/dev/mtdblock2 rootfstype=jffs2 fbcon=rotate:1"

2
arch/arm/configs/footbridge_defconfig
View File

@ -4,6 +4,8 @@ CONFIG_LOG_BUF_SHIFT=14
CONFIG_BLK_DEV_INITRD=y
CONFIG_EXPERT=y
# CONFIG_HOTPLUG is not set
CONFIG_ARCH_MULTI_V4=y
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_FOOTBRIDGE=y
CONFIG_ARCH_EBSA285_HOST=y
CONFIG_ARCH_NETWINDER=y

2
arch/arm/configs/h3600_defconfig
View File

@ -4,6 +4,8 @@ CONFIG_HIGH_RES_TIMERS=y
CONFIG_PREEMPT=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_BLK_DEV_INITRD=y
CONFIG_ARCH_MULTI_V4=y
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_SA1100=y
CONFIG_SA1100_H3600=y
# CONFIG_CPU_FREQ_STAT is not set

2
arch/arm/configs/hackkit_defconfig
View File

@ -1,6 +1,8 @@
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_BLK_DEV_INITRD=y
CONFIG_ARCH_MULTI_V4=y
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_SA1100=y
CONFIG_SA1100_HACKKIT=y
CONFIG_UNUSED_BOARD_FILES=y

2
arch/arm/configs/jornada720_defconfig
View File

@ -1,6 +1,8 @@
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_ARCH_MULTI_V4=y
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_SA1100=y
CONFIG_SA1100_JORNADA720=y
CONFIG_SA1100_JORNADA720_SSP=y

2
arch/arm/configs/lart_defconfig
View File

@ -1,6 +1,8 @@
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_BLK_DEV_INITRD=y
CONFIG_ARCH_MULTI_V4=y
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_SA1100=y
CONFIG_SA1100_LART=y
CONFIG_UNUSED_BOARD_FILES=y

2
arch/arm/configs/neponset_defconfig
View File

@ -1,6 +1,8 @@
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_BLK_DEV_INITRD=y
CONFIG_ARCH_MULTI_V4=y
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_SA1100=y
CONFIG_SA1100_ASSABET=y
CONFIG_ASSABET_NEPONSET=y

2
arch/arm/configs/netwinder_defconfig
View File

@ -1,5 +1,7 @@
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_ARCH_MULTI_V4=y
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_FOOTBRIDGE=y
CONFIG_ARCH_NETWINDER=y
CONFIG_DEPRECATED_PARAM_STRUCT=y

2
arch/arm/configs/pleb_defconfig
View File

@ -4,6 +4,8 @@ CONFIG_BLK_DEV_INITRD=y
CONFIG_EXPERT=y
# CONFIG_HOTPLUG is not set
# CONFIG_SHMEM is not set
CONFIG_ARCH_MULTI_V4=y
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_SA1100=y
CONFIG_SA1100_PLEB=y
CONFIG_UNUSED_BOARD_FILES=y

2
arch/arm/configs/rpc_defconfig
View File

@ -4,6 +4,8 @@ CONFIG_LOG_BUF_SHIFT=14
CONFIG_BLK_DEV_INITRD=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_ARCH_MULTI_V4=y
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_RPC=y
CONFIG_CPU_SA110=y
CONFIG_FPE_NWFPE=y

2
arch/arm/configs/shannon_defconfig
View File

@ -1,6 +1,8 @@
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_BLK_DEV_INITRD=y
CONFIG_ARCH_MULTI_V4=y
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_SA1100=y
CONFIG_SA1100_SHANNON=y
CONFIG_UNUSED_BOARD_FILES=y

2
arch/arm/configs/simpad_defconfig
View File

@ -5,6 +5,8 @@ CONFIG_LOG_BUF_SHIFT=14
CONFIG_EXPERT=y
CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_EXTRA_PASS=y
CONFIG_ARCH_MULTI_V4=y
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_SA1100=y
CONFIG_SA1100_SIMPAD=y
CONFIG_UNUSED_BOARD_FILES=y

19
arch/arm/mach-footbridge/Kconfig
View File

@ -1,7 +1,20 @@
# SPDX-License-Identifier: GPL-2.0-only
if ARCH_FOOTBRIDGE
menuconfig ARCH_FOOTBRIDGE
bool "FootBridge Implementations"
depends on ARCH_MULTI_V4 && !(ARCH_MULTI_V4T || ARCH_MULTI_V5)
depends on !(ARCH_MOXART || ARCH_GEMINI || ARCH_SA1100)
depends on ATAGS
depends on CPU_LITTLE_ENDIAN
depends on MMU
select ARCH_NO_SG_CHAIN
select CPU_SA110
select FOOTBRIDGE
select NEED_MACH_MEMORY_H
help
Support for systems based on the DC21285 companion chip
("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
menu "Footbridge Implementations"
if ARCH_FOOTBRIDGE
config ARCH_CATS
bool "CATS"
@ -57,8 +70,6 @@ config ARCH_NETWINDER
Saying N will reduce the size of the Footbridge kernel.
endmenu
# Footbridge support
config FOOTBRIDGE
select ARCH_HAS_PHYS_TO_DMA

2
arch/arm/mach-imx/Kconfig
View File

@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0-only
menuconfig ARCH_MXC
bool "Freescale i.MX family"
depends on (ARCH_MULTI_V4_V5 && CPU_LITTLE_ENDIAN) || \
depends on ((ARCH_MULTI_V4T || ARCH_MULTI_V5) && CPU_LITTLE_ENDIAN) || \
ARCH_MULTI_V6_V7 || ARM_SINGLE_ARMV7M
select CLKSRC_IMX_GPT
select GENERIC_IRQ_CHIP

2
arch/arm/mach-nspire/Kconfig
View File

@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0-only
config ARCH_NSPIRE
bool "TI-NSPIRE based"
depends on ARCH_MULTI_V4_V5
depends on ARCH_MULTI_V4T
depends on CPU_LITTLE_ENDIAN
select CPU_ARM926T
select GENERIC_IRQ_CHIP

21
arch/arm/mach-rpc/Kconfig Normal file
View File

@ -0,0 +1,21 @@
config ARCH_RPC
bool "RiscPC"
depends on ARCH_MULTI_V4 && !(ARCH_MULTI_V4T || ARCH_MULTI_V5)
depends on !(ARCH_FOOTBRIDGE || ARCH_SA1100 || ARCH_MOXART || ARCH_GEMINI)
depends on !CC_IS_CLANG && GCC_VERSION < 90100 && GCC_VERSION >= 60000
depends on CPU_LITTLE_ENDIAN
depends on ATAGS
depends on MMU
select ARCH_ACORN
select ARCH_MAY_HAVE_PC_FDC
select CPU_SA110
select FIQ
select HAVE_PATA_PLATFORM
select ISA_DMA_API
select LEGACY_TIMER_TICK
select NEED_MACH_IO_H
select NEED_MACH_MEMORY_H
select NO_IOPORT_MAP
help
On the Acorn Risc-PC, Linux can support the internal IDE disk and
CD-ROM interface, serial and parallel port, and the floppy drive.

25
arch/arm/mach-sa1100/Kconfig
View File

@ -1,7 +1,25 @@
# SPDX-License-Identifier: GPL-2.0-only
if ARCH_SA1100
menuconfig ARCH_SA1100
bool "SA11x0 Implementations"
depends on ARCH_MULTI_V4 && !(ARCH_MULTI_V4T || ARCH_MULTI_V5)
depends on !(ARCH_MOXART || ARCH_GEMINI)
depends on ATAGS
depends on CPU_LITTLE_ENDIAN
depends on MMU
select ARCH_NO_SG_CHAIN
select ARCH_MTD_XIP
select CLKSRC_MMIO
select CLKSRC_PXA
select CPU_FREQ
select CPU_SA1100
select GPIOLIB
select IRQ_DOMAIN
select ISA
select NEED_MACH_MEMORY_H
help
Support for StrongARM 11x0 based boards.
menu "SA11x0 Implementations"
if ARCH_SA1100
config SA1100_ASSABET
bool "Assabet"
@ -179,7 +197,4 @@ config SA1100_SSP
This isn't for audio support, but for attached sensors and
other devices, eg for BadgePAD 4 sensor support.
endmenu
endif