openwrt/target/linux/bmips/patches-5.10/204-wdt-bcm7038-add-big-endian-compatibility.patch

--- a/drivers/watchdog/bcm7038_wdt.c
+++ b/drivers/watchdog/bcm7038_wdt.c
@@ -34,6 +34,24 @@ struct bcm7038_watchdog {
 
 static bool nowayout = WATCHDOG_NOWAYOUT;
 
+static inline void bcm7038_wdt_write(unsigned long data, void __iomem *reg)
+{
+#ifdef CONFIG_CPU_BIG_ENDIAN
+	iowrite32be(data, reg);
+#else
+	writel(data, reg);
+#endif
+}
+
+static inline unsigned long bcm7038_wdt_read(void __iomem *reg)
+{
+#ifdef CONFIG_CPU_BIG_ENDIAN
+	return ioread32be(reg);
+#else
+	return readl(reg);
+#endif
+}
+
 static void bcm7038_wdt_set_timeout_reg(struct watchdog_device *wdog)
 {
 	struct bcm7038_watchdog *wdt = watchdog_get_drvdata(wdog);
@@ -41,15 +59,15 @@ static void bcm7038_wdt_set_timeout_reg(
 
 	timeout = wdt->rate * wdog->timeout;
 
-	writel(timeout, wdt->base + WDT_TIMEOUT_REG);
+	bcm7038_wdt_write(timeout, wdt->base + WDT_TIMEOUT_REG);
 }
 
 static int bcm7038_wdt_ping(struct watchdog_device *wdog)
 {
 	struct bcm7038_watchdog *wdt = watchdog_get_drvdata(wdog);
 
-	writel(WDT_START_1, wdt->base + WDT_CMD_REG);
-	writel(WDT_START_2, wdt->base + WDT_CMD_REG);
+	bcm7038_wdt_write(WDT_START_1, wdt->base + WDT_CMD_REG);
+	bcm7038_wdt_write(WDT_START_2, wdt->base + WDT_CMD_REG);
 
 	return 0;
 }
@@ -66,8 +84,8 @@ static int bcm7038_wdt_stop(struct watch
 {
 	struct bcm7038_watchdog *wdt = watchdog_get_drvdata(wdog);
 
-	writel(WDT_STOP_1, wdt->base + WDT_CMD_REG);
-	writel(WDT_STOP_2, wdt->base + WDT_CMD_REG);
+	bcm7038_wdt_write(WDT_STOP_1, wdt->base + WDT_CMD_REG);
+	bcm7038_wdt_write(WDT_STOP_2, wdt->base + WDT_CMD_REG);
 
 	return 0;
 }
@@ -88,7 +106,7 @@ static unsigned int bcm7038_wdt_get_time
 	struct bcm7038_watchdog *wdt = watchdog_get_drvdata(wdog);
 	u32 time_left;
 
-	time_left = readl(wdt->base + WDT_CMD_REG);
+	time_left = bcm7038_wdt_read(wdt->base + WDT_CMD_REG);
 
 	return time_left / wdt->rate;
 }