microblaze: Enable REMAKE_ELF

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

diff --git a/arch/Kconfig b/arch/Kconfig
index 4851300e9bbeee0a648a269e32c40da84f2353f6..02de32f9c77f88f23f82c6a0edd70a8626b80497 100644 (file)
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -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
 

diff --git a/arch/microblaze/config.mk b/arch/microblaze/config.mk
index de5b97e719cc834d2df914b9ac212fef19357ff2..3e84a832fc12ef4aca81b25e30f64a1ddbadceb0 100644 (file)
--- a/arch/microblaze/config.mk
+++ b/arch/microblaze/config.mk
@@ -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

diff --git a/configs/microblaze-generic_defconfig b/configs/microblaze-generic_defconfig
index 7994110b28a73454dbdf31145307955fa480cf80..35e32466bdff644f62d784f29392704618bc1ffa 100644 (file)
--- a/configs/microblaze-generic_defconfig
+++ b/configs/microblaze-generic_defconfig
@@ -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