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microblaze: Enable REMAKE_ELF

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Enable u-boot.elf recreation from u-boot.bin to prepare for removing manul
relocation. Enable option for big endian configuration but it is not used
too much that's why it is completely untested.
By supporting this system there is a need to define LITTLE/BIG endian
Kconfig options to pass -EL/-EB flags.

Full command line for u-boot.elf recreation looks like this:
microblazeel-xilinx-linux-gnu-objcopy -I binary -B microblaze \
 -O elf32-microblazeel u-boot.bin u-boot-elf.o

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/7e242a519fcd1c693b9103c5599b515af555ca43.1655299267.git.michal.simek@amd.com
This commit is contained in:
Michal Simek 2022-06-24 14:14:59 +02:00
parent 89e81e6c32
commit 10fd6d64c7
3 changed files with 10 additions and 3 deletions
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6
arch/Kconfig
View File

@ -448,7 +448,7 @@ source "arch/riscv/Kconfig"
source "board/keymile/Kconfig"
if MIPS
if MIPS || MICROBLAZE
choice
prompt "Endianness selection"
@ -460,11 +460,11 @@ choice
config SYS_BIG_ENDIAN
bool "Big endian"
depends on SUPPORTS_BIG_ENDIAN
depends on (SUPPORTS_BIG_ENDIAN && MIPS) || MICROBLAZE
config SYS_LITTLE_ENDIAN
bool "Little endian"
depends on SUPPORTS_LITTLE_ENDIAN
depends on (SUPPORTS_LITTLE_ENDIAN && MIPS) || MICROBLAZE
endchoice

6
arch/microblaze/config.mk
View File

@ -16,3 +16,9 @@ LDFLAGS_FINAL += --gc-sections
ifeq ($(CONFIG_SPL_BUILD),)
PLATFORM_CPPFLAGS += -fPIC
endif
ifeq ($(CONFIG_SYS_LITTLE_ENDIAN),y)
PLATFORM_ELFFLAGS += -B microblaze $(OBJCOPYFLAGS) -O elf32-microblazeel
else
PLATFORM_ELFFLAGS += -B microblaze $(OBJCOPYFLAGS) -O elf32-microblaze
endif

1
configs/microblaze-generic_defconfig
View File

@ -14,6 +14,7 @@ CONFIG_XILINX_MICROBLAZE0_USE_BARREL=1
CONFIG_XILINX_MICROBLAZE0_USE_DIV=1
CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL=1
CONFIG_DISTRO_DEFAULTS=y
CONFIG_REMAKE_ELF=y
CONFIG_FIT=y
CONFIG_FIT_VERBOSE=y
CONFIG_BOOTDELAY=-1