[PATCH v1] drivers: watchdog: ast2600 support bootstatus
From: Peter Yin <hidden>
Date: 2024-03-14 06:57:49
Also in:
linux-aspeed, linux-watchdog, lkml
Subsystem:
the rest, watchdog device drivers · Maintainers:
Linus Torvalds, Wim Van Sebroeck, Guenter Roeck
Add WDIOF_EXTERN1 bootstatus in ast2600 Signed-off-by: Peter Yin <redacted> --- Change log: v1 - Patch 0001 - Add WDIOF_EXTERN1 bootstatus --- drivers/watchdog/aspeed_wdt.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/drivers/watchdog/aspeed_wdt.c b/drivers/watchdog/aspeed_wdt.c
index b4773a6aaf8c..8adadd394be6 100644
--- a/drivers/watchdog/aspeed_wdt.c
+++ b/drivers/watchdog/aspeed_wdt.c@@ -81,6 +81,7 @@ MODULE_DEVICE_TABLE(of, aspeed_wdt_of_table); #define WDT_CLEAR_TIMEOUT_AND_BOOT_CODE_SELECTION BIT(0) #define WDT_RESET_MASK1 0x1c #define WDT_RESET_MASK2 0x20 +#define WDT_EVENT_COUNTER_MASK (0xFFF << 8) /* * WDT_RESET_WIDTH controls the characteristics of the external pulse (if
@@ -459,8 +460,17 @@ static int aspeed_wdt_probe(struct platform_device *pdev) } status = readl(wdt->base + WDT_TIMEOUT_STATUS); - if (status & WDT_TIMEOUT_STATUS_BOOT_SECONDARY) { - wdt->wdd.bootstatus = WDIOF_CARDRESET; + + if (of_device_is_compatible(np, "aspeed,ast2600-wdt")) { + if (status & WDT_EVENT_COUNTER_MASK) { + /* + * Reset cause by WatchDog + */ + wdt->wdd.bootstatus |= WDIOF_EXTERN1; + } + } else { + if (status & WDT_TIMEOUT_STATUS_BOOT_SECONDARY) + wdt->wdd.bootstatus = WDIOF_CARDRESET; if (of_device_is_compatible(np, "aspeed,ast2400-wdt") || of_device_is_compatible(np, "aspeed,ast2500-wdt"))
--
2.25.1
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