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flash: Allow currently active regions to be modified

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This patch allows chips which run code in RAM to erase or write
regions even if they're active.

BUG=b:77306460
BRANCH=none
TEST=flashrom -p ec -w /tmp/ec.bin on Fizz

Change-Id: Ib536b250dde78283513acb942507c67da0a6f622
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/997022
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
This commit is contained in:
Daisuke Nojiri
2018-04-04 17:39:36 -07:00
committed by chrome-bot
parent 96931840bc
commit 75e0015cc1
1 changed files with 4 additions and 0 deletions
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4
common/flash.c
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@@ -1165,8 +1165,10 @@ static int flash_command_write(struct host_cmd_handler_args *args)
if (p->size + sizeof(*p) > args->params_size)
return EC_RES_INVALID_PARAM;
#ifdef CONFIG_INTERNAL_STORAGE
if (system_unsafe_to_overwrite(offset, p->size))
return EC_RES_ACCESS_DENIED;
#endif
if (flash_write(offset, p->size, (const uint8_t *)(p + 1)))
return EC_RES_ERROR;
@@ -1204,8 +1206,10 @@ static int flash_command_erase(struct host_cmd_handler_args *args)
if (flash_get_protect() & EC_FLASH_PROTECT_ALL_NOW)
return EC_RES_ACCESS_DENIED;
#ifdef CONFIG_INTERNAL_STORAGE
if (system_unsafe_to_overwrite(offset, p->size))
return EC_RES_ACCESS_DENIED;
#endif
switch (cmd) {
case FLASH_ERASE_SECTOR: