diff options
| author | Rong Chang <rongchang@google.com> | 2017-02-22 11:32:39 +0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2017-02-27 16:56:24 -0800 |
| commit | ec98dbfb35bb22bb6b9096eceedda93c9f88f85c (patch) | |
| tree | 17a36638e971abafe0ad4b7a452a2078f47a67e4 /board/elm | |
| parent | 31cfc63b80ea8f5b778e6c3f568f325a6064244a (diff) | |
| download | chrome-ec-ec98dbfb35bb22bb6b9096eceedda93c9f88f85c.tar.gz | |
stm32f09x: fix flash protection offset
STM32F091VC has 32 flash protection sectors (31 x 4KB + 1 x 132KB),
which doesn't fit the layout requirement in config_std_internal_flash.h.
This CL hardcodes the layout and flash bank mapping.
BUG=chrome-os-partner:62372
BUG=chromium:694972
TEST=load on elm and manually enable write protect using flashrom
# flashrom -p ec:dev=0 --wp-enable
check ec console write protect option bytes, bank 31 is writable
> rw 0x1ffff808
read 0x1ffff808 = 0xff00ff00
> rw 0x1ffff80c
read 0x1ffff80c = 0x7f80ff00
BRANCH=oak
Change-Id: I23dcf87bfbcd2f37e97a87e94847dce1ea1d343c
Signed-off-by: Rong Chang <rongchang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/446176
Diffstat (limited to 'board/elm')
| -rw-r--r-- | board/elm/board.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/board/elm/board.h b/board/elm/board.h index f143dc614a..ea2452c34a 100644 --- a/board/elm/board.h +++ b/board/elm/board.h @@ -124,6 +124,30 @@ #define CONFIG_CMD_I2C_PROTECT #define CONFIG_CMD_PD_CONTROL +/* + * Flash layout: + * PSTATE(4KB) + * | + * (124KB) v (132KB) + * |<-----Protected Region------>|<------Unprotected Region----->| + * |<--------RO image--------->| | |<--------RW image----------->| + * 0 (120KB) ^ ^ (128KB) + * | | + * | sector 31(132KB sector) + * | + * sector 30(4KB sector) + */ +#undef CONFIG_RW_MEM_OFF +#undef CONFIG_RW_SIZE +#undef CONFIG_EC_WRITABLE_STORAGE_OFF +#undef CONFIG_EC_WRITABLE_STORAGE_SIZE +#undef CONFIG_WP_STORAGE_SIZE +#define CONFIG_RW_MEM_OFF (128 * 1024) +#define CONFIG_RW_SIZE (128 * 1024) +#define CONFIG_EC_WRITABLE_STORAGE_OFF (128 * 1024) +#define CONFIG_EC_WRITABLE_STORAGE_SIZE (128 * 1024) +#define CONFIG_WP_STORAGE_SIZE (128 * 1024) + /* Drivers */ #ifndef __ASSEMBLER__ |