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| author | Randall Spangler <rspangler@chromium.org> | 2013-07-08 11:11:06 -0700 |
|---|---|---|
| committer | ChromeBot <chrome-bot@google.com> | 2013-07-08 13:53:59 -0700 |
| commit | 49799b827856bd911e6b86821a9ec95687c4ca78 (patch) | |
| tree | 9d3cd08a308f54e67c504090a1f23d269db16def /chip/stm32/config-stm32l15x.h | |
| parent | 4e31062449cce3a86cd855403c147213cdbd06cc (diff) | |
| download | chrome-ec-49799b827856bd911e6b86821a9ec95687c4ca78.tar.gz | |
stm32l: Fix flash_is_erased() detection
STM32L erases flash to 0, not 1, so we need a config value to indicate
that. This speeds up flash erase on STM32L by not re-erasing
already-erased blocks.
BUG=chrome-os-partner:13066
BRANCH=none
TEST=manual - hack flash_physical_erase() to print something just after
flash_is_erased() check.
1. flasherase 0x1f800 0x800
2. flashwrite 0x1fa00 0x100
3. flasherase 0x1f800 0x800 -> only re-erases 0x1fa00
Change-Id: I4d726caf0605e7815b9360bb2d44bdfdd757b4a2
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/61110
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Diffstat (limited to 'chip/stm32/config-stm32l15x.h')
| -rw-r--r-- | chip/stm32/config-stm32l15x.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/chip/stm32/config-stm32l15x.h b/chip/stm32/config-stm32l15x.h index eac9347ecb..c03ff5d8e9 100644 --- a/chip/stm32/config-stm32l15x.h +++ b/chip/stm32/config-stm32l15x.h @@ -36,3 +36,6 @@ /* Lots of RAM, so use bigger UART buffer */ #define CONFIG_UART_TX_BUF_SIZE 2048 + +/* Flash erases to 0, not 1 */ +#define CONFIG_FLASH_ERASED_VALUE32 0 |