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-rw-r--r--doc/README.x8617
1 files changed, 17 insertions, 0 deletions
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 <spare>
+700000 u-boot-dtb.bin CONFIG_SYS_TEXT_BASE
+790000 vga.bin CONFIG_X86_OPTION_ROM_ADDR
+7c0000 fsp.bin CONFIG_FSP_ADDR
+7f8000 <spare> (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