x86: Add documentation on the samus flashmap
There are quite a few variables which control where things appear in the
final ROM image. Add a flashmap in the documentation to make this easier
to figure out.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: squashed "x86: Update the memory map a little" in]
[bmeng: fixed typo of 'documentation' in the commit title]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/doc/README.x86 b/doc/README.x86
index fa49cb8..8e0a3f3 100644
--- a/doc/README.x86
+++ b/doc/README.x86
@@ -185,6 +185,22 @@
em100 -s -d filename.rom -c W25Q64CV -r
+Flash map for samus / broadwell:
+
+ fffff800 SYS_X86_START16
+ ffff0000 RESET_SEG_START
+ fffd8000 TPL_TEXT_BASE
+ fffa0000 X86_MRC_ADDR
+ fff90000 VGA_BIOS_ADDR
+ ffed0000 SYS_TEXT_BASE
+ ffea0000 X86_REFCODE_ADDR
+ ffe70000 SPL_TEXT_BASE
+ ffbf8000 CONFIG_ENV_OFFSET (environemnt offset)
+ ffbe0000 rw-mrc-cache (Memory-reference-code cache)
+ ffa00000 <spare>
+ ff801000 intel-me (address set by descriptor.bin)
+ ff800000 intel-descriptor
+
---
Intel Crown Bay specific instructions for bare mode: