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zinger: fix check for is in RO

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Fix check for whether or not we are running in RO. The previous
code read the contents of the RW reset vector, but RW code
may be corrupted causing us to think we are in RW when we are not.

BUG=none
BRANCH=none
TEST=mostly just code inspection. verified this code running
in RW correctly identifies we are in RW.

Change-Id: I2c27af45a59b29f55fd24295f91d5c5f0e491dd4
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/203192
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
This commit is contained in:
Alec Berg
2014-06-10 10:22:02 -07:00
committed by chrome-internal-fetch
parent 8c201b1e6c
commit c388281b06
1 changed files with 1 additions and 1 deletions
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2
board/zinger/board.c
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@@ -40,7 +40,7 @@ static void jump_to_rw(void)
int is_ro_mode(void)
{
return (uint32_t)&jump_to_rw < *rw_rst;
return (uint32_t)&jump_to_rw < (uint32_t)rw_rst;
}
static int check_rw_valid(void)