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| author | Randall Spangler <rspangler@chromium.org> | 2012-04-24 09:59:31 -0700 |
|---|---|---|
| committer | Randall Spangler <rspangler@chromium.org> | 2012-04-24 09:59:31 -0700 |
| commit | 7ecb8358b9ae4594abc9cc6251719283e079a494 (patch) | |
| tree | 5b9d4a7323515d97f1aaee242e8d9a6091e1d260 /common/main.c | |
| parent | e8c86b2a6845b5fa9b73a6410c0442a0f03f771d (diff) | |
| download | chrome-ec-7ecb8358b9ae4594abc9cc6251719283e079a494.tar.gz | |
Disable PLL at end of init
This saves power.
Signed-off-by: Randall Spangler <rspangler@chromium.org>
BUG=chrome-os-partner:8798
TEST=manual
Get a proto1 system modified with INA current sensor
1) From chroot:
dut-control i2c_mux_en:on i2c_mux:rem
dut-control pp3300_alw_mv pp3300_alw_ma
2) From EC console:
pll
(this should turn the PLL back on; it'll report clock frequency ~66MHz)
3) From chroot:
dut-control i2c_mux_en:on i2c_mux:rem
dut-control pp3300_alw_mv pp3300_alw_ma
Current (ma) should be bigger than in step 1
Change-Id: I806953684c57fd60bf481acb01dddffe2f2ad0ed
Diffstat (limited to 'common/main.c')
| -rw-r--r-- | common/main.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/common/main.c b/common/main.c index 5293820e9b..8252a231d0 100644 --- a/common/main.c +++ b/common/main.c @@ -95,13 +95,15 @@ int main(void) * RO image and once in the RW image. */ vboot_init(); - /* TODO: reduce core clock now that vboot is done */ - /* Initialize other driver modules. These can occur in any order. * Non-driver modules with tasks do their inits from their task * functions, not here. */ hook_notify(HOOK_INIT, 0); +#ifdef BOARD_link + /* Reduce core clock now that init is done */ + clock_enable_pll(0); +#endif /* Print the init time and reset cause. Init time isn't completely * accurate because it can't take into account the time for the first * few module inits, but it'll at least catch the majority of them. */ |