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authorBin Meng <bmeng.cn@gmail.com>2016-05-11 07:44:55 -0700
committerBin Meng <bmeng.cn@gmail.com>2016-05-23 15:18:00 +0800
commit91fc5bf652c1e959373cd21df4809a74d31e75fe (patch)
tree3931505bb2906f1139a1286964cf7cb2a85753f8 /doc/README.x86
parentf7e20f6628c679bd2617c0a58b44e8d9407b475d (diff)
downloadu-boot-91fc5bf652c1e959373cd21df4809a74d31e75fe.tar.gz
x86: minnowmax: Adjust U-Boot environment address in SPI flash
Currently U-Boot environment address is at offset 0x7fe00 of a 8MB SPI flash. When creating a partial u-boot.rom image without flash descriptor and ME firmware, U-Boot actually occupies the last 1MB of the flash, and reprograming U-Boot causes previous environment settings get lost which is not convenient during testing. Adjust the environment address to 0x6ef000 instead (before the MRC cache data region in the flash). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Stefan Roese <sr@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'doc/README.x86')
-rw-r--r--doc/README.x862
1 files changed, 1 insertions, 1 deletions
diff --git a/doc/README.x86 b/doc/README.x86
index ce806ee424..25cb218c2a 100644
--- a/doc/README.x86
+++ b/doc/README.x86
@@ -304,12 +304,12 @@ Offset Description Controlling config
000000 descriptor.bin Hard-coded to 0 in ifdtool
001000 me.bin Set by the descriptor
500000 <spare>
+6ef000 Environment CONFIG_ENV_OFFSET
6f0000 MRC cache CONFIG_ENABLE_MRC_CACHE
700000 u-boot-dtb.bin CONFIG_SYS_TEXT_BASE
790000 vga.bin CONFIG_VGA_BIOS_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.