From 537ccba2a425d69d407c9e2cd0fd9d34391ddf82 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Fri, 3 Jul 2015 18:28:24 -0600 Subject: x86: Add ROM image description for minnowmax The layout of the ROM is a bit hard to discover by reading the code. Add a table to make it easier. Signed-off-by: Simon Glass Reviewed-by: Bin Meng --- doc/README.x86 | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'doc/README.x86') diff --git a/doc/README.x86 b/doc/README.x86 index 646eff1355..46a1eebfaf 100644 --- a/doc/README.x86 +++ b/doc/README.x86 @@ -164,6 +164,23 @@ Now you can build U-Boot and obtain u-boot.rom $ make minnowmax_defconfig $ make all +The ROM image is broken up into these parts: + +Offset Description Controlling config +------------------------------------------------------------ +000000 descriptor.bin Hard-coded to 0 in ifdtool +001000 me.bin Set by the descriptor +500000 +700000 u-boot-dtb.bin CONFIG_SYS_TEXT_BASE +790000 vga.bin CONFIG_X86_OPTION_ROM_ADDR +7c0000 fsp.bin CONFIG_FSP_ADDR +7f8000 (depends on size of fsp.bin) +7fe000 Environment CONFIG_ENV_OFFSET +7ff800 U-Boot 16-bit boot CONFIG_SYS_X86_START16 + +Overall ROM image size is controlled by CONFIG_ROM_SIZE. + + Intel Galileo instructions: Only one binary blob is needed for Remote Management Unit (RMU) within Intel -- cgit v1.2.1