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https://github.com/u-boot/u-boot.git
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Kconfig: Unify endian support option
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
Tom Rini
parent
902d8ee94c
commit
cbef295441
7 changed files with 51 additions and 39 deletions
34
arch/Kconfig
34
arch/Kconfig
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@ -8,6 +8,13 @@ config CREATE_ARCH_SYMLINK
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config HAVE_ARCH_IOREMAP
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bool
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config SUPPORT_BIG_ENDIAN
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bool
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config SUPPORT_LITTLE_ENDIAN
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bool
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default y if !SUPPORT_BIG_ENDIAN
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config SYS_CACHE_SHIFT_4
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bool
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@ -59,6 +66,8 @@ config ARC
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select SUPPORT_OF_CONTROL
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select SYS_CACHE_SHIFT_7
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select TIMER
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select SUPPORT_BIG_ENDIAN
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select SUPPORT_LITTLE_ENDIAN
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select SYS_BIG_ENDIAN if CPU_BIG_ENDIAN
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select SYS_LITTLE_ENDIAN if !CPU_BIG_ENDIAN
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@ -68,6 +77,7 @@ config ARM
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select CREATE_ARCH_SYMLINK
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select HAVE_PRIVATE_LIBGCC if !ARM64
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select SUPPORT_ACPI
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select SUPPORT_LITTLE_ENDIAN
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select SUPPORT_OF_CONTROL
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config M68K
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@ -77,10 +87,13 @@ config M68K
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select SYS_BOOT_GET_CMDLINE
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select SYS_BOOT_GET_KBD
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select SYS_CACHE_SHIFT_4
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select SUPPORT_BIG_ENDIAN
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select SUPPORT_OF_CONTROL
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config MICROBLAZE
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bool "MicroBlaze architecture"
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select SUPPORT_BIG_ENDIAN
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select SUPPORT_LITTLE_ENDIAN
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select SUPPORT_OF_CONTROL
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imply CMD_TIMER
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imply SPL_REGMAP if SPL
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@ -101,12 +114,14 @@ config NIOS2
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select DM
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select DM_EVENT
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select OF_CONTROL
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select SUPPORT_LITTLE_ENDIAN
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select SUPPORT_OF_CONTROL
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imply CMD_DM
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config PPC
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bool "PowerPC architecture"
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select HAVE_PRIVATE_LIBGCC
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select SUPPORT_BIG_ENDIAN
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select SUPPORT_OF_CONTROL
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select SYS_BOOT_GET_CMDLINE
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select SYS_BOOT_GET_KBD
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@ -115,6 +130,7 @@ config RISCV
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bool "RISC-V architecture"
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select CREATE_ARCH_SYMLINK
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select SUPPORT_ACPI
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select SUPPORT_LITTLE_ENDIAN
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select SUPPORT_OF_CONTROL
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select OF_CONTROL
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select DM
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@ -160,6 +176,8 @@ config SANDBOX
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select PCI_ENDPOINT
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select SPI
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select SUPPORT_OF_CONTROL
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select SUPPORT_BIG_ENDIAN
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select SUPPORT_LITTLE_ENDIAN
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select SYSRESET_CMD_POWEROFF if CMD_POWEROFF
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select SYS_CACHE_SHIFT_4
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select IRQ
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@ -224,6 +242,7 @@ config SANDBOX
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config SH
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bool "SuperH architecture"
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select SUPPORT_LITTLE_ENDIAN
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select HAVE_PRIVATE_LIBGCC
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select SUPPORT_OF_CONTROL
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@ -231,6 +250,7 @@ config X86
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bool "x86 architecture"
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select SUPPORT_SPL
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select SUPPORT_TPL
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select SUPPORT_LITTLE_ENDIAN
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select CREATE_ARCH_SYMLINK
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select DM
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select HAVE_ARCH_IOMAP
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@ -312,6 +332,7 @@ config X86
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config XTENSA
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bool "Xtensa architecture"
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select CREATE_ARCH_SYMLINK
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select SUPPORT_LITTLE_ENDIAN
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select SUPPORT_OF_CONTROL
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endchoice
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@ -515,24 +536,21 @@ endif
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source "board/keymile/Kconfig"
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if MIPS || MICROBLAZE
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choice
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prompt "Endianness selection"
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default SYS_BIG_ENDIAN if MIPS || MICROBLAZE
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default SYS_LITTLE_ENDIAN
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help
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Some MIPS boards can be configured for either little or big endian
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Some boards can be configured for either little or big endian
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byte order. These modes require different U-Boot images. In general there
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is one preferred byteorder for a particular system but some systems are
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just as commonly used in the one or the other endianness.
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config SYS_BIG_ENDIAN
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bool "Big endian"
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depends on (SUPPORTS_BIG_ENDIAN && MIPS) || MICROBLAZE
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depends on SUPPORT_BIG_ENDIAN
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config SYS_LITTLE_ENDIAN
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bool "Little endian"
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depends on (SUPPORTS_LITTLE_ENDIAN && MIPS) || MICROBLAZE
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depends on SUPPORT_LITTLE_ENDIAN
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endchoice
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endif
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@ -28,14 +28,14 @@ config TARGET_MALTA
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select OF_ISA_BUS
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select PCI_MAP_SYSTEM_MEMORY
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select ROM_EXCEPTION_VECTORS
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select SUPPORTS_BIG_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SUPPORTS_CPU_MIPS32_R2
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select SUPPORTS_CPU_MIPS32_R6
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select SUPPORTS_CPU_MIPS64_R1
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select SUPPORTS_CPU_MIPS64_R2
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select SUPPORTS_CPU_MIPS64_R6
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select SUPPORTS_LITTLE_ENDIAN
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select SUPPORT_BIG_ENDIAN
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select SUPPORT_LITTLE_ENDIAN
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select SWAP_IO_SPACE
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imply CMD_DM
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@ -86,7 +86,7 @@ config ARCH_MTMIPS
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select ROM_EXCEPTION_VECTORS
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select SUPPORTS_CPU_MIPS32_R1
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select SUPPORTS_CPU_MIPS32_R2
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select SUPPORTS_LITTLE_ENDIAN
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select SUPPORT_LITTLE_ENDIAN
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select SUPPORT_SPL
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config ARCH_JZ47XX
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@ -112,7 +112,7 @@ config ARCH_OCTEON
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select MIPS_TUNE_OCTEON3
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select MTD
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select ROM_EXCEPTION_VECTORS
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select SUPPORTS_BIG_ENDIAN
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select SUPPORT_BIG_ENDIAN
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select SUPPORTS_CPU_MIPS64_OCTEON
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select PHYS_64BIT
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select OF_CONTROL
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@ -138,14 +138,14 @@ config TARGET_BOSTON
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select OF_BOARD_SETUP
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select OF_CONTROL
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select ROM_EXCEPTION_VECTORS
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select SUPPORTS_BIG_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SUPPORTS_CPU_MIPS32_R2
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select SUPPORTS_CPU_MIPS32_R6
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select SUPPORTS_CPU_MIPS64_R1
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select SUPPORTS_CPU_MIPS64_R2
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select SUPPORTS_CPU_MIPS64_R6
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select SUPPORTS_LITTLE_ENDIAN
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select SUPPORT_BIG_ENDIAN
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select SUPPORT_LITTLE_ENDIAN
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imply CMD_DM
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config TARGET_XILFPGA
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@ -159,7 +159,7 @@ config TARGET_XILFPGA
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select ROM_EXCEPTION_VECTORS
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select SUPPORTS_CPU_MIPS32_R1
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select SUPPORTS_CPU_MIPS32_R2
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select SUPPORTS_LITTLE_ENDIAN
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select SUPPORT_LITTLE_ENDIAN
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imply CMD_DM
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help
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This supports IMGTEC MIPSfpga platform
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@ -413,12 +413,6 @@ config MIPS_BOOT_FDT
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endmenu
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config SUPPORTS_BIG_ENDIAN
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bool
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config SUPPORTS_LITTLE_ENDIAN
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bool
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config SUPPORTS_CPU_MIPS32_R1
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bool
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@ -8,7 +8,7 @@ config SOC_AR933X
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bool
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select MIPS_TUNE_24KC
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select ROM_EXCEPTION_VECTORS
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select SUPPORTS_BIG_ENDIAN
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select SUPPORT_BIG_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SUPPORTS_CPU_MIPS32_R2
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help
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@ -17,7 +17,7 @@ config SOC_AR933X
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config SOC_AR934X
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bool
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select MIPS_TUNE_74KC
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select SUPPORTS_BIG_ENDIAN
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select SUPPORT_BIG_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SUPPORTS_CPU_MIPS32_R2
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select USB_EHCI_IS_TDI if USB_EHCI_HCD
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@ -28,7 +28,7 @@ config SOC_QCA953X
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bool
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select MIPS_TUNE_24KC
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select ROM_EXCEPTION_VECTORS
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select SUPPORTS_BIG_ENDIAN
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select SUPPORT_BIG_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SUPPORTS_CPU_MIPS32_R2
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help
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@ -37,7 +37,7 @@ config SOC_QCA953X
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config SOC_QCA956X
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bool
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select MIPS_TUNE_74KC
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select SUPPORTS_BIG_ENDIAN
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select SUPPORT_BIG_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SUPPORTS_CPU_MIPS32_R2
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help
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@ -23,7 +23,7 @@ config SOC_BMIPS_BCM3380
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bool "BMIPS BCM3380 family"
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select SYS_CACHE_SHIFT_4
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select MIPS_TUNE_4KC
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select SUPPORTS_BIG_ENDIAN
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select SUPPORT_BIG_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SYSRESET_WATCHDOG
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help
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@ -33,7 +33,7 @@ config SOC_BMIPS_BCM6318
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bool "BMIPS BCM6318 family"
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select SYS_CACHE_SHIFT_4
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select MIPS_TUNE_4KC
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select SUPPORTS_BIG_ENDIAN
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select SUPPORT_BIG_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SYSRESET_SYSCON
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help
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@ -43,7 +43,7 @@ config SOC_BMIPS_BCM6328
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bool "BMIPS BCM6328 family"
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select SYS_CACHE_SHIFT_4
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select MIPS_TUNE_4KC
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select SUPPORTS_BIG_ENDIAN
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select SUPPORT_BIG_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SYSRESET_SYSCON
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help
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@ -53,7 +53,7 @@ config SOC_BMIPS_BCM6338
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bool "BMIPS BCM6338 family"
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select SYS_CACHE_SHIFT_4
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select MIPS_TUNE_4KC
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select SUPPORTS_BIG_ENDIAN
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select SUPPORT_BIG_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SYSRESET_SYSCON
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help
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@ -63,7 +63,7 @@ config SOC_BMIPS_BCM6348
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bool "BMIPS BCM6348 family"
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select SYS_CACHE_SHIFT_4
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select MIPS_TUNE_4KC
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select SUPPORTS_BIG_ENDIAN
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select SUPPORT_BIG_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SYSRESET_WATCHDOG
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help
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@ -73,7 +73,7 @@ config SOC_BMIPS_BCM6358
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bool "BMIPS BCM6358 family"
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select SYS_CACHE_SHIFT_4
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select MIPS_TUNE_4KC
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select SUPPORTS_BIG_ENDIAN
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select SUPPORT_BIG_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SYSRESET_SYSCON
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help
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@ -83,7 +83,7 @@ config SOC_BMIPS_BCM6368
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bool "BMIPS BCM6368 family"
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select SYS_CACHE_SHIFT_4
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select MIPS_TUNE_4KC
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select SUPPORTS_BIG_ENDIAN
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select SUPPORT_BIG_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SYSRESET_SYSCON
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help
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@ -93,7 +93,7 @@ config SOC_BMIPS_BCM6362
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bool "BMIPS BCM6362 family"
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select SYS_CACHE_SHIFT_4
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select MIPS_TUNE_4KC
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select SUPPORTS_BIG_ENDIAN
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select SUPPORT_BIG_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SYSRESET_SYSCON
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help
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@ -103,7 +103,7 @@ config SOC_BMIPS_BCM63268
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bool "BMIPS BCM63268 family"
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select SYS_CACHE_SHIFT_4
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select MIPS_TUNE_4KC
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select SUPPORTS_BIG_ENDIAN
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select SUPPORT_BIG_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SYSRESET_SYSCON
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help
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@ -114,7 +114,7 @@ config SOC_BMIPS_BCM6838
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bool "BMIPS BCM6838 family"
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select SYS_CACHE_SHIFT_4
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select MIPS_TUNE_4KC
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select SUPPORTS_BIG_ENDIAN
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select SUPPORT_BIG_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SYSRESET_SYSCON
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help
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@ -6,7 +6,7 @@ config SYS_SOC
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config SOC_JZ4780
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bool
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select SUPPORTS_LITTLE_ENDIAN
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select SUPPORT_LITTLE_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SUPPORTS_CPU_MIPS32_R2
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help
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@ -6,10 +6,10 @@ menu "MSCC VCore-III platforms"
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config SOC_VCOREIII
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select MIPS_TUNE_24KC
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select ROM_EXCEPTION_VECTORS
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select SUPPORTS_BIG_ENDIAN
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select SUPPORT_BIG_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SUPPORTS_CPU_MIPS32_R2
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select SUPPORTS_LITTLE_ENDIAN
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select SUPPORT_LITTLE_ENDIAN
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bool
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config SYS_SOC
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@ -13,7 +13,7 @@ config SOC_PIC32MZDA
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select ROM_EXCEPTION_VECTORS
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select SUPPORTS_CPU_MIPS32_R1
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select SUPPORTS_CPU_MIPS32_R2
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select SUPPORTS_LITTLE_ENDIAN
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select SUPPORT_LITTLE_ENDIAN
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select SYS_MIPS_CACHE_INIT_RAM_LOAD
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help
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This supports Microchip PIC32MZ[DA] family of microcontrollers.
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