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x86: minnowmax: Adjust U-Boot environment address in SPI flash

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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>
This commit is contained in:
Bin Meng 2016-05-11 07:44:55 -07:00
parent f7e20f6628
commit 91fc5bf652
2 changed files with 2 additions and 2 deletions
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2
doc/README.x86
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@ -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.

2
include/configs/minnowmax.h
View file

@ -40,6 +40,6 @@
#define CONFIG_X86EMU_RAW_IO
#define CONFIG_ENV_SECT_SIZE 0x1000
#define CONFIG_ENV_OFFSET 0x007fe000
#define CONFIG_ENV_OFFSET 0x006ef000
#endif /* __CONFIG_H */