diff options
| author | Tristan Shieh <tristan.shieh@mediatek.com> | 2019-04-08 11:01:40 +0800 |
|---|---|---|
| committer | Julius Werner <jwerner@chromium.org> | 2019-04-17 04:32:26 +0000 |
| commit | a76e6542d1ab39ca50777f3fd0146151d0868c5c (patch) | |
| tree | 8011717f7cf8ef7e826825caa8f7bdfcdd0ea853 /src/soc/mediatek/mt8173/timer.c | |
| parent | 250dfc025613f5e193183f9520432207f4b296e4 (diff) | |
mediatek: Use the 64-bit timer
GPT4 is a 32-bit timer and the counter of GPT4 will overflow in about
330 seconds (0xffffffff / 13MHz). Timer and delay functions will not
work properly if the counter overflows. To fix that we should use the
64-bit timer (GPT6).
BUG=b:80501386
BRANCH=none
Test=emerge-elm coreboot; emerge-kukui coreboot
Change-Id: I9f080e47253a1b1bab4636a45cb86c8666a25302
Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32245
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: You-Cheng Syu <youcheng@google.com>
Diffstat (limited to 'src/soc/mediatek/mt8173/timer.c')
| -rw-r--r-- | src/soc/mediatek/mt8173/timer.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/soc/mediatek/mt8173/timer.c b/src/soc/mediatek/mt8173/timer.c index 2c9995ac05..eb2a1424b2 100644 --- a/src/soc/mediatek/mt8173/timer.c +++ b/src/soc/mediatek/mt8173/timer.c @@ -31,5 +31,5 @@ void timer_prepare(void) */ write32(&mt8173_mcucfg->xgpt_idx, 0); /* Set clock mode to 13Mhz and enable XGPT */ - write32(&mt8173_mcucfg->xgpt_ctl, (0x1 | ((26 / GPT4_MHZ) << 8))); + write32(&mt8173_mcucfg->xgpt_ctl, (0x1 | ((26 / GPT_MHZ) << 8))); } |