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x86: doc: Update coreboot payload entry point address

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With recent EFI support, the entry point address of coreboot payload
was changed. Now we update the address to use _x86boot_start, which
is the same one for EFI.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Bin Meng 2015-08-13 00:29:07 -07:00 • committed by Simon Glass
parent 1d8a078b29
commit 330728d711
1 changed files with 3 additions and 3 deletions
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6
doc/README.x86
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@ -245,10 +245,10 @@ this capability yet. The command is as follows:
# in the coreboot root directory
$ ./build/util/cbfstool/cbfstool build/coreboot.rom add-flat-binary \
-f u-boot-dtb.bin -n fallback/payload -c lzma -l 0x1110000 -e 0x1110015
-f u-boot-dtb.bin -n fallback/payload -c lzma -l 0x1110000 -e 0x1110000
Make sure 0x1110000 matches CONFIG_SYS_TEXT_BASE and 0x1110015 matches the
symbol address of _start (in arch/x86/cpu/start.S).
Make sure 0x1110000 matches CONFIG_SYS_TEXT_BASE, which is the symbol address
of _x86boot_start (in arch/x86/cpu/start.S).
If you want to use ELF as the coreboot payload, change U-Boot configuration to
use CONFIG_OF_EMBED instead of CONFIG_OF_SEPARATE.