From: Peter Yin <peteryin.openbmc@gmail.com>
To: patrick@stwcx.xyz, Wim Van Sebroeck <wim@linux-watchdog.org>,
Guenter Roeck <linux@roeck-us.net>, Joel Stanley <joel@jms.id.au>,
Andrew Jeffery <andrew@codeconstruct.com.au>,
linux-watchdog@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: [PATCH v1] drivers: watchdog: ast2600 support bootstatus
Date: Thu, 14 Mar 2024 14:57:44 +0800 [thread overview]
Message-ID: <20240314065744.1182701-1-peteryin.openbmc@gmail.com> (raw)
Add WDIOF_EXTERN1 bootstatus in ast2600
Signed-off-by: Peter Yin <peteryin.openbmc@gmail.com>
---
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
next reply other threads:[~2024-03-14 6:57 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-14 6:57 Peter Yin [this message]
2024-03-14 13:50 ` [PATCH v1] drivers: watchdog: ast2600 support bootstatus Guenter Roeck
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