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Kconfig: Unify endian support option

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Move SUPPORT_BIG_ENDIAN, SUPPORT_LITTLE_ENDIAN to top-level
arch Kconfig and let architectures select them as necessary.

Remove if guard for Endianness selection choice so we can
have one of SYS_BIG_ENDIAN, SYS_LITTLE_ENDIAN config symbol
defined even on single endian system.

Default endian to SYS_BIG_ENDIAN for MIPS || MICROBLAZE
and LITTLE_ENDIAN for the rest to retain old config
behaviour.

Note: PPC, SH, Xtensa are technically bi-endian, but I
checked compiled u-boot image with readelf, U-Boot currently
only support little endian for SH and Xtensa, Big Endian for
PPC.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
This commit is contained in:
Jiaxun Yang 2024-07-17 16:07:02 +08:00 committed by Tom Rini
parent 902d8ee94c
commit cbef295441
7 changed files with 51 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
arch/Kconfig
View File

@ -8,6 +8,13 @@ config CREATE_ARCH_SYMLINK
config HAVE_ARCH_IOREMAP config HAVE_ARCH_IOREMAP
bool bool
config SUPPORT_BIG_ENDIAN
bool
config SUPPORT_LITTLE_ENDIAN
bool
default y if !SUPPORT_BIG_ENDIAN
config SYS_CACHE_SHIFT_4 config SYS_CACHE_SHIFT_4
bool bool
@ -59,6 +66,8 @@ config ARC
select SUPPORT_OF_CONTROL select SUPPORT_OF_CONTROL
select SYS_CACHE_SHIFT_7 select SYS_CACHE_SHIFT_7
select TIMER select TIMER
select SUPPORT_BIG_ENDIAN
select SUPPORT_LITTLE_ENDIAN
select SYS_BIG_ENDIAN if CPU_BIG_ENDIAN select SYS_BIG_ENDIAN if CPU_BIG_ENDIAN
select SYS_LITTLE_ENDIAN if !CPU_BIG_ENDIAN select SYS_LITTLE_ENDIAN if !CPU_BIG_ENDIAN
@ -68,6 +77,7 @@ config ARM
select CREATE_ARCH_SYMLINK select CREATE_ARCH_SYMLINK
select HAVE_PRIVATE_LIBGCC if !ARM64 select HAVE_PRIVATE_LIBGCC if !ARM64
select SUPPORT_ACPI select SUPPORT_ACPI
select SUPPORT_LITTLE_ENDIAN
select SUPPORT_OF_CONTROL select SUPPORT_OF_CONTROL
config M68K config M68K
@ -77,10 +87,13 @@ config M68K
select SYS_BOOT_GET_CMDLINE select SYS_BOOT_GET_CMDLINE
select SYS_BOOT_GET_KBD select SYS_BOOT_GET_KBD
select SYS_CACHE_SHIFT_4 select SYS_CACHE_SHIFT_4
select SUPPORT_BIG_ENDIAN
select SUPPORT_OF_CONTROL select SUPPORT_OF_CONTROL
config MICROBLAZE config MICROBLAZE
bool "MicroBlaze architecture" bool "MicroBlaze architecture"
select SUPPORT_BIG_ENDIAN
select SUPPORT_LITTLE_ENDIAN
select SUPPORT_OF_CONTROL select SUPPORT_OF_CONTROL
imply CMD_TIMER imply CMD_TIMER
imply SPL_REGMAP if SPL imply SPL_REGMAP if SPL
@ -101,12 +114,14 @@ config NIOS2
select DM select DM
select DM_EVENT select DM_EVENT
select OF_CONTROL select OF_CONTROL
select SUPPORT_LITTLE_ENDIAN
select SUPPORT_OF_CONTROL select SUPPORT_OF_CONTROL
imply CMD_DM imply CMD_DM
config PPC config PPC
bool "PowerPC architecture" bool "PowerPC architecture"
select HAVE_PRIVATE_LIBGCC select HAVE_PRIVATE_LIBGCC
select SUPPORT_BIG_ENDIAN
select SUPPORT_OF_CONTROL select SUPPORT_OF_CONTROL
select SYS_BOOT_GET_CMDLINE select SYS_BOOT_GET_CMDLINE
select SYS_BOOT_GET_KBD select SYS_BOOT_GET_KBD
@ -115,6 +130,7 @@ config RISCV
bool "RISC-V architecture" bool "RISC-V architecture"
select CREATE_ARCH_SYMLINK select CREATE_ARCH_SYMLINK
select SUPPORT_ACPI select SUPPORT_ACPI
select SUPPORT_LITTLE_ENDIAN
select SUPPORT_OF_CONTROL select SUPPORT_OF_CONTROL
select OF_CONTROL select OF_CONTROL
select DM select DM
@ -160,6 +176,8 @@ config SANDBOX
select PCI_ENDPOINT select PCI_ENDPOINT
select SPI select SPI
select SUPPORT_OF_CONTROL select SUPPORT_OF_CONTROL
select SUPPORT_BIG_ENDIAN
select SUPPORT_LITTLE_ENDIAN
select SYSRESET_CMD_POWEROFF if CMD_POWEROFF select SYSRESET_CMD_POWEROFF if CMD_POWEROFF
select SYS_CACHE_SHIFT_4 select SYS_CACHE_SHIFT_4
select IRQ select IRQ
@ -224,6 +242,7 @@ config SANDBOX
config SH config SH
bool "SuperH architecture" bool "SuperH architecture"
select SUPPORT_LITTLE_ENDIAN
select HAVE_PRIVATE_LIBGCC select HAVE_PRIVATE_LIBGCC
select SUPPORT_OF_CONTROL select SUPPORT_OF_CONTROL
@ -231,6 +250,7 @@ config X86
bool "x86 architecture" bool "x86 architecture"
select SUPPORT_SPL select SUPPORT_SPL
select SUPPORT_TPL select SUPPORT_TPL
select SUPPORT_LITTLE_ENDIAN
select CREATE_ARCH_SYMLINK select CREATE_ARCH_SYMLINK
select DM select DM
select HAVE_ARCH_IOMAP select HAVE_ARCH_IOMAP
@ -312,6 +332,7 @@ config X86
config XTENSA config XTENSA
bool "Xtensa architecture" bool "Xtensa architecture"
select CREATE_ARCH_SYMLINK select CREATE_ARCH_SYMLINK
select SUPPORT_LITTLE_ENDIAN
select SUPPORT_OF_CONTROL select SUPPORT_OF_CONTROL
endchoice endchoice
@ -515,24 +536,21 @@ endif
source "board/keymile/Kconfig" source "board/keymile/Kconfig"
if MIPS || MICROBLAZE
choice choice
prompt "Endianness selection" prompt "Endianness selection"
default SYS_BIG_ENDIAN if MIPS || MICROBLAZE
default SYS_LITTLE_ENDIAN
help help
Some MIPS boards can be configured for either little or big endian Some boards can be configured for either little or big endian
byte order. These modes require different U-Boot images. In general there byte order. These modes require different U-Boot images. In general there
is one preferred byteorder for a particular system but some systems are is one preferred byteorder for a particular system but some systems are
just as commonly used in the one or the other endianness. just as commonly used in the one or the other endianness.
config SYS_BIG_ENDIAN config SYS_BIG_ENDIAN
bool "Big endian" bool "Big endian"
depends on (SUPPORTS_BIG_ENDIAN && MIPS) || MICROBLAZE depends on SUPPORT_BIG_ENDIAN
config SYS_LITTLE_ENDIAN config SYS_LITTLE_ENDIAN
bool "Little endian" bool "Little endian"
depends on (SUPPORTS_LITTLE_ENDIAN && MIPS) || MICROBLAZE depends on SUPPORT_LITTLE_ENDIAN
endchoice endchoice
endif

20
arch/mips/Kconfig
View File

@ -28,14 +28,14 @@ config TARGET_MALTA
select OF_ISA_BUS select OF_ISA_BUS
select PCI_MAP_SYSTEM_MEMORY select PCI_MAP_SYSTEM_MEMORY
select ROM_EXCEPTION_VECTORS select ROM_EXCEPTION_VECTORS
select SUPPORTS_BIG_ENDIAN
select SUPPORTS_CPU_MIPS32_R1 select SUPPORTS_CPU_MIPS32_R1
select SUPPORTS_CPU_MIPS32_R2 select SUPPORTS_CPU_MIPS32_R2
select SUPPORTS_CPU_MIPS32_R6 select SUPPORTS_CPU_MIPS32_R6
select SUPPORTS_CPU_MIPS64_R1 select SUPPORTS_CPU_MIPS64_R1
select SUPPORTS_CPU_MIPS64_R2 select SUPPORTS_CPU_MIPS64_R2
select SUPPORTS_CPU_MIPS64_R6 select SUPPORTS_CPU_MIPS64_R6
select SUPPORTS_LITTLE_ENDIAN select SUPPORT_BIG_ENDIAN
select SUPPORT_LITTLE_ENDIAN
select SWAP_IO_SPACE select SWAP_IO_SPACE
imply CMD_DM imply CMD_DM
@ -86,7 +86,7 @@ config ARCH_MTMIPS
select ROM_EXCEPTION_VECTORS select ROM_EXCEPTION_VECTORS
select SUPPORTS_CPU_MIPS32_R1 select SUPPORTS_CPU_MIPS32_R1
select SUPPORTS_CPU_MIPS32_R2 select SUPPORTS_CPU_MIPS32_R2
select SUPPORTS_LITTLE_ENDIAN select SUPPORT_LITTLE_ENDIAN
select SUPPORT_SPL select SUPPORT_SPL
config ARCH_JZ47XX config ARCH_JZ47XX
@ -112,7 +112,7 @@ config ARCH_OCTEON
select MIPS_TUNE_OCTEON3 select MIPS_TUNE_OCTEON3
select MTD select MTD
select ROM_EXCEPTION_VECTORS select ROM_EXCEPTION_VECTORS
select SUPPORTS_BIG_ENDIAN select SUPPORT_BIG_ENDIAN
select SUPPORTS_CPU_MIPS64_OCTEON select SUPPORTS_CPU_MIPS64_OCTEON
select PHYS_64BIT select PHYS_64BIT
select OF_CONTROL select OF_CONTROL
@ -138,14 +138,14 @@ config TARGET_BOSTON
select OF_BOARD_SETUP select OF_BOARD_SETUP
select OF_CONTROL select OF_CONTROL
select ROM_EXCEPTION_VECTORS select ROM_EXCEPTION_VECTORS
select SUPPORTS_BIG_ENDIAN
select SUPPORTS_CPU_MIPS32_R1 select SUPPORTS_CPU_MIPS32_R1
select SUPPORTS_CPU_MIPS32_R2 select SUPPORTS_CPU_MIPS32_R2
select SUPPORTS_CPU_MIPS32_R6 select SUPPORTS_CPU_MIPS32_R6
select SUPPORTS_CPU_MIPS64_R1 select SUPPORTS_CPU_MIPS64_R1
select SUPPORTS_CPU_MIPS64_R2 select SUPPORTS_CPU_MIPS64_R2
select SUPPORTS_CPU_MIPS64_R6 select SUPPORTS_CPU_MIPS64_R6
select SUPPORTS_LITTLE_ENDIAN select SUPPORT_BIG_ENDIAN
select SUPPORT_LITTLE_ENDIAN
imply CMD_DM imply CMD_DM
config TARGET_XILFPGA config TARGET_XILFPGA
@ -159,7 +159,7 @@ config TARGET_XILFPGA
select ROM_EXCEPTION_VECTORS select ROM_EXCEPTION_VECTORS
select SUPPORTS_CPU_MIPS32_R1 select SUPPORTS_CPU_MIPS32_R1
select SUPPORTS_CPU_MIPS32_R2 select SUPPORTS_CPU_MIPS32_R2
select SUPPORTS_LITTLE_ENDIAN select SUPPORT_LITTLE_ENDIAN
imply CMD_DM imply CMD_DM
help help
This supports IMGTEC MIPSfpga platform This supports IMGTEC MIPSfpga platform
@ -413,12 +413,6 @@ config MIPS_BOOT_FDT
endmenu endmenu
config SUPPORTS_BIG_ENDIAN
bool
config SUPPORTS_LITTLE_ENDIAN
bool
config SUPPORTS_CPU_MIPS32_R1 config SUPPORTS_CPU_MIPS32_R1
bool bool

8
arch/mips/mach-ath79/Kconfig
View File

@ -8,7 +8,7 @@ config SOC_AR933X
bool bool
select MIPS_TUNE_24KC select MIPS_TUNE_24KC
select ROM_EXCEPTION_VECTORS select ROM_EXCEPTION_VECTORS
select SUPPORTS_BIG_ENDIAN select SUPPORT_BIG_ENDIAN
select SUPPORTS_CPU_MIPS32_R1 select SUPPORTS_CPU_MIPS32_R1
select SUPPORTS_CPU_MIPS32_R2 select SUPPORTS_CPU_MIPS32_R2
help help
@ -17,7 +17,7 @@ config SOC_AR933X
config SOC_AR934X config SOC_AR934X
bool bool
select MIPS_TUNE_74KC select MIPS_TUNE_74KC
select SUPPORTS_BIG_ENDIAN select SUPPORT_BIG_ENDIAN
select SUPPORTS_CPU_MIPS32_R1 select SUPPORTS_CPU_MIPS32_R1
select SUPPORTS_CPU_MIPS32_R2 select SUPPORTS_CPU_MIPS32_R2
select USB_EHCI_IS_TDI if USB_EHCI_HCD select USB_EHCI_IS_TDI if USB_EHCI_HCD
@ -28,7 +28,7 @@ config SOC_QCA953X
bool bool
select MIPS_TUNE_24KC select MIPS_TUNE_24KC
select ROM_EXCEPTION_VECTORS select ROM_EXCEPTION_VECTORS
select SUPPORTS_BIG_ENDIAN select SUPPORT_BIG_ENDIAN
select SUPPORTS_CPU_MIPS32_R1 select SUPPORTS_CPU_MIPS32_R1
select SUPPORTS_CPU_MIPS32_R2 select SUPPORTS_CPU_MIPS32_R2
help help
@ -37,7 +37,7 @@ config SOC_QCA953X
config SOC_QCA956X config SOC_QCA956X
bool bool
select MIPS_TUNE_74KC select MIPS_TUNE_74KC
select SUPPORTS_BIG_ENDIAN select SUPPORT_BIG_ENDIAN
select SUPPORTS_CPU_MIPS32_R1 select SUPPORTS_CPU_MIPS32_R1
select SUPPORTS_CPU_MIPS32_R2 select SUPPORTS_CPU_MIPS32_R2
help help

20
arch/mips/mach-bmips/Kconfig
View File

@ -23,7 +23,7 @@ config SOC_BMIPS_BCM3380
bool "BMIPS BCM3380 family" bool "BMIPS BCM3380 family"
select SYS_CACHE_SHIFT_4 select SYS_CACHE_SHIFT_4
select MIPS_TUNE_4KC select MIPS_TUNE_4KC
select SUPPORTS_BIG_ENDIAN select SUPPORT_BIG_ENDIAN
select SUPPORTS_CPU_MIPS32_R1 select SUPPORTS_CPU_MIPS32_R1
select SYSRESET_WATCHDOG select SYSRESET_WATCHDOG
help help
@ -33,7 +33,7 @@ config SOC_BMIPS_BCM6318
bool "BMIPS BCM6318 family" bool "BMIPS BCM6318 family"
select SYS_CACHE_SHIFT_4 select SYS_CACHE_SHIFT_4
select MIPS_TUNE_4KC select MIPS_TUNE_4KC
select SUPPORTS_BIG_ENDIAN select SUPPORT_BIG_ENDIAN
select SUPPORTS_CPU_MIPS32_R1 select SUPPORTS_CPU_MIPS32_R1
select SYSRESET_SYSCON select SYSRESET_SYSCON
help help
@ -43,7 +43,7 @@ config SOC_BMIPS_BCM6328
bool "BMIPS BCM6328 family" bool "BMIPS BCM6328 family"
select SYS_CACHE_SHIFT_4 select SYS_CACHE_SHIFT_4
select MIPS_TUNE_4KC select MIPS_TUNE_4KC
select SUPPORTS_BIG_ENDIAN select SUPPORT_BIG_ENDIAN
select SUPPORTS_CPU_MIPS32_R1 select SUPPORTS_CPU_MIPS32_R1
select SYSRESET_SYSCON select SYSRESET_SYSCON
help help
@ -53,7 +53,7 @@ config SOC_BMIPS_BCM6338
bool "BMIPS BCM6338 family" bool "BMIPS BCM6338 family"
select SYS_CACHE_SHIFT_4 select SYS_CACHE_SHIFT_4
select MIPS_TUNE_4KC select MIPS_TUNE_4KC
select SUPPORTS_BIG_ENDIAN select SUPPORT_BIG_ENDIAN
select SUPPORTS_CPU_MIPS32_R1 select SUPPORTS_CPU_MIPS32_R1
select SYSRESET_SYSCON select SYSRESET_SYSCON
help help
@ -63,7 +63,7 @@ config SOC_BMIPS_BCM6348
bool "BMIPS BCM6348 family" bool "BMIPS BCM6348 family"
select SYS_CACHE_SHIFT_4 select SYS_CACHE_SHIFT_4
select MIPS_TUNE_4KC select MIPS_TUNE_4KC
select SUPPORTS_BIG_ENDIAN select SUPPORT_BIG_ENDIAN
select SUPPORTS_CPU_MIPS32_R1 select SUPPORTS_CPU_MIPS32_R1
select SYSRESET_WATCHDOG select SYSRESET_WATCHDOG
help help
@ -73,7 +73,7 @@ config SOC_BMIPS_BCM6358
bool "BMIPS BCM6358 family" bool "BMIPS BCM6358 family"
select SYS_CACHE_SHIFT_4 select SYS_CACHE_SHIFT_4
select MIPS_TUNE_4KC select MIPS_TUNE_4KC
select SUPPORTS_BIG_ENDIAN select SUPPORT_BIG_ENDIAN
select SUPPORTS_CPU_MIPS32_R1 select SUPPORTS_CPU_MIPS32_R1
select SYSRESET_SYSCON select SYSRESET_SYSCON
help help
@ -83,7 +83,7 @@ config SOC_BMIPS_BCM6368
bool "BMIPS BCM6368 family" bool "BMIPS BCM6368 family"
select SYS_CACHE_SHIFT_4 select SYS_CACHE_SHIFT_4
select MIPS_TUNE_4KC select MIPS_TUNE_4KC
select SUPPORTS_BIG_ENDIAN select SUPPORT_BIG_ENDIAN
select SUPPORTS_CPU_MIPS32_R1 select SUPPORTS_CPU_MIPS32_R1
select SYSRESET_SYSCON select SYSRESET_SYSCON
help help
@ -93,7 +93,7 @@ config SOC_BMIPS_BCM6362
bool "BMIPS BCM6362 family" bool "BMIPS BCM6362 family"
select SYS_CACHE_SHIFT_4 select SYS_CACHE_SHIFT_4
select MIPS_TUNE_4KC select MIPS_TUNE_4KC
select SUPPORTS_BIG_ENDIAN select SUPPORT_BIG_ENDIAN
select SUPPORTS_CPU_MIPS32_R1 select SUPPORTS_CPU_MIPS32_R1
select SYSRESET_SYSCON select SYSRESET_SYSCON
help help
@ -103,7 +103,7 @@ config SOC_BMIPS_BCM63268
bool "BMIPS BCM63268 family" bool "BMIPS BCM63268 family"
select SYS_CACHE_SHIFT_4 select SYS_CACHE_SHIFT_4
select MIPS_TUNE_4KC select MIPS_TUNE_4KC
select SUPPORTS_BIG_ENDIAN select SUPPORT_BIG_ENDIAN
select SUPPORTS_CPU_MIPS32_R1 select SUPPORTS_CPU_MIPS32_R1
select SYSRESET_SYSCON select SYSRESET_SYSCON
help help
@ -114,7 +114,7 @@ config SOC_BMIPS_BCM6838
bool "BMIPS BCM6838 family" bool "BMIPS BCM6838 family"
select SYS_CACHE_SHIFT_4 select SYS_CACHE_SHIFT_4
select MIPS_TUNE_4KC select MIPS_TUNE_4KC
select SUPPORTS_BIG_ENDIAN select SUPPORT_BIG_ENDIAN
select SUPPORTS_CPU_MIPS32_R1 select SUPPORTS_CPU_MIPS32_R1
select SYSRESET_SYSCON select SYSRESET_SYSCON
help help

2
arch/mips/mach-jz47xx/Kconfig
View File

@ -6,7 +6,7 @@ config SYS_SOC
config SOC_JZ4780 config SOC_JZ4780
bool bool
select SUPPORTS_LITTLE_ENDIAN select SUPPORT_LITTLE_ENDIAN
select SUPPORTS_CPU_MIPS32_R1 select SUPPORTS_CPU_MIPS32_R1
select SUPPORTS_CPU_MIPS32_R2 select SUPPORTS_CPU_MIPS32_R2
help help

4
arch/mips/mach-mscc/Kconfig
View File

@ -6,10 +6,10 @@ menu "MSCC VCore-III platforms"
config SOC_VCOREIII config SOC_VCOREIII
select MIPS_TUNE_24KC select MIPS_TUNE_24KC
select ROM_EXCEPTION_VECTORS select ROM_EXCEPTION_VECTORS
select SUPPORTS_BIG_ENDIAN select SUPPORT_BIG_ENDIAN
select SUPPORTS_CPU_MIPS32_R1 select SUPPORTS_CPU_MIPS32_R1
select SUPPORTS_CPU_MIPS32_R2 select SUPPORTS_CPU_MIPS32_R2
select SUPPORTS_LITTLE_ENDIAN select SUPPORT_LITTLE_ENDIAN
bool bool
config SYS_SOC config SYS_SOC

2
arch/mips/mach-pic32/Kconfig
View File

@ -13,7 +13,7 @@ config SOC_PIC32MZDA
select ROM_EXCEPTION_VECTORS select ROM_EXCEPTION_VECTORS
select SUPPORTS_CPU_MIPS32_R1 select SUPPORTS_CPU_MIPS32_R1
select SUPPORTS_CPU_MIPS32_R2 select SUPPORTS_CPU_MIPS32_R2
select SUPPORTS_LITTLE_ENDIAN select SUPPORT_LITTLE_ENDIAN
select SYS_MIPS_CACHE_INIT_RAM_LOAD select SYS_MIPS_CACHE_INIT_RAM_LOAD
help help
This supports Microchip PIC32MZ[DA] family of microcontrollers. This supports Microchip PIC32MZ[DA] family of microcontrollers.