diff options
| author | Shawn Nematbakhsh <shawnn@chromium.org> | 2016-02-08 15:39:11 -0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2016-02-09 19:51:00 -0800 |
| commit | 9c053ea898fa2ed890df4f60064dcfee465b6e0f (patch) | |
| tree | d588fbf32188a36e832f72c2824b1cf58980d1b9 /board/chell | |
| parent | c7b96d514d18697762696715f79cfbea3d7afa84 (diff) | |
| download | chrome-ec-9c053ea898fa2ed890df4f60064dcfee465b6e0f.tar.gz | |
mec1322: clock: Use full-speed 48MHz processor clock during EC boot
EC boot / hash computing can be a bottleneck for system boot time.
Reduce this bottleneck by running our processor at 48 MHz through boot,
until vboot hashing of RW completes.
BUG=chrome-os-partner:49583
TEST=Boot chell, verify vboot hash completes within 1 sec of EC boot and
'cbmem' delta between 'vboot select&load kernel' and 'finished EC
verification' is reduced to ~250 ms (which includes sysjump time).
BRANCH=glados
Change-Id: I18d87e685b89decef761e51517bfcfc43dcf8ef0
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/326792
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Diffstat (limited to 'board/chell')
| -rw-r--r-- | board/chell/board.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/board/chell/board.h b/board/chell/board.h index 6160e3e199..c143c48aa7 100644 --- a/board/chell/board.h +++ b/board/chell/board.h @@ -134,7 +134,7 @@ #undef CONFIG_CONSOLE_CMDHELP #undef DEFERRABLE_MAX_COUNT -#define DEFERRABLE_MAX_COUNT 14 +#define DEFERRABLE_MAX_COUNT 15 #ifndef __ASSEMBLER__ |