diff options
| author | Rex-BC Chen <rex-bc.chen@mediatek.com> | 2022-03-15 10:30:06 +0800 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-03-18 15:42:40 +0000 |
| commit | 1e24b2047565e1ab01facb8185c06292550b3050 (patch) | |
| tree | 9b3eb17adbae6b4021779916a0dc0156ebfbae39 /src/soc/mediatek/common/wdt.c | |
| parent | bd529e2e200a8fbfd455dd62be0494a2b727b9a5 (diff) | |
soc/mediatek: Trigger wdt SW reset when wdt status is not equal to 0
Because we close external signal in kernel driver since MT8195, it's
more reasonable to trigger sw reset with exteranl signal again
whenever the wdt status is not equal to 0.
BUG=none
TEST=build pass
Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Change-Id: Ic6128df7eadaebcf7ff8d4c5492e3e0cfbab6e36
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62797
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/mediatek/common/wdt.c')
| -rw-r--r-- | src/soc/mediatek/common/wdt.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/src/soc/mediatek/common/wdt.c b/src/soc/mediatek/common/wdt.c index 108648f80f..d58ac32b33 100644 --- a/src/soc/mediatek/common/wdt.c +++ b/src/soc/mediatek/common/wdt.c @@ -40,18 +40,21 @@ int mtk_wdt_init(void) printk(BIOS_INFO, "WDT: Status = %#x\n", wdt_sta); printk(BIOS_INFO, "WDT: Last reset was "); - if (wdt_sta & MTK_WDT_STA_HW_RST) { - printk(BIOS_INFO, "hardware watchdog\n"); + if (!wdt_sta) { + printk(BIOS_INFO, "cold boot\n"); + } else { + if (wdt_sta & MTK_WDT_STA_HW_RST) + printk(BIOS_INFO, "hardware watchdog\n"); + else if (wdt_sta & MTK_WDT_STA_SW_RST) + printk(BIOS_INFO, "normal software reboot\n"); + else if (wdt_sta & MTK_WDT_STA_SPM_RST) + printk(BIOS_INFO, "SPM reboot\n"); + else + printk(BIOS_INFO, "other reset type: %#.8x\n", wdt_sta); + mark_watchdog_tombstone(); mtk_wdt_swreset(); - } else if (wdt_sta & MTK_WDT_STA_SW_RST) - printk(BIOS_INFO, "normal software reboot\n"); - else if (wdt_sta & MTK_WDT_STA_SPM_RST) - printk(BIOS_INFO, "SPM reboot\n"); - else if (!wdt_sta) - printk(BIOS_INFO, "cold boot\n"); - else - printk(BIOS_INFO, "unexpected reset type: %#.8x\n", wdt_sta); + } /* Config watchdog reboot mode: * Clearing bits: |