diff options
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/mediatek/common/wdt.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/soc/mediatek/common/wdt.c b/src/soc/mediatek/common/wdt.c index 44a9ce50b6..05bd27d277 100644 --- a/src/soc/mediatek/common/wdt.c +++ b/src/soc/mediatek/common/wdt.c @@ -19,6 +19,14 @@ int mtk_wdt_init(void) if (wdt_sta & MTK_WDT_STA_HW_RST) { printk(BIOS_INFO, "hardware watchdog\n"); mark_watchdog_tombstone(); + + /* + * We trigger secondary reset by triggering WDT hardware to send signal to EC. + * We do not use do_board_reset() to send signal to EC + * which is controlled by software driver. + */ + write32(&mtk_wdt->wdt_mode, MTK_WDT_MODE_EXTEN | MTK_WDT_MODE_KEY); + write32(&mtk_wdt->wdt_swrst, MTK_WDT_SWRST_KEY); } 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) |