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 /payloads/libpayload/drivers/timer | |
| 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 'payloads/libpayload/drivers/timer')
| -rw-r--r-- | payloads/libpayload/drivers/timer/Kconfig | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/payloads/libpayload/drivers/timer/Kconfig b/payloads/libpayload/drivers/timer/Kconfig index f1542cf9db..5a61dfab51 100644 --- a/payloads/libpayload/drivers/timer/Kconfig +++ b/payloads/libpayload/drivers/timer/Kconfig @@ -54,7 +54,7 @@ config TIMER_IMG_PISTACHIO bool "Timer for IMG Pistachio" config TIMER_MTK - bool "Timer for MediaTek MT8173" + bool "Timer for MediaTek" endchoice @@ -77,7 +77,7 @@ config TIMER_GENERIC_REG default 0x004A2000 if TIMER_IPQ40XX default 0x0200A028 if TIMER_IPQ806X default 0x101C0100 if TIMER_MCT - default 0x10008048 if TIMER_MTK + default 0x10008068 if TIMER_MTK default 0xff810028 if TIMER_RK3288 default 0xff850008 if TIMER_RK3399 default 0x60005010 if TIMER_TEGRA_1US @@ -89,6 +89,7 @@ config TIMER_GENERIC_HIGH_REG hex "Generic Timer High Register Address" default 0x004A2004 if TIMER_IPQ40XX default 0x101C0104 if TIMER_MCT + default 0x10008078 if TIMER_MTK default 0xff81002C if TIMER_RK3288 default 0xff85000C if TIMER_RK3399 default 0x0 |