diff options
Diffstat (limited to 'target/linux/cns3xxx/patches/053-cns3xxx_wdt.patch')
-rw-r--r-- | target/linux/cns3xxx/patches/053-cns3xxx_wdt.patch | 77 |
1 files changed, 0 insertions, 77 deletions
diff --git a/target/linux/cns3xxx/patches/053-cns3xxx_wdt.patch b/target/linux/cns3xxx/patches/053-cns3xxx_wdt.patch deleted file mode 100644 index 85a73ab1d..000000000 --- a/target/linux/cns3xxx/patches/053-cns3xxx_wdt.patch +++ /dev/null @@ -1,77 +0,0 @@ ---- a/drivers/watchdog/Kconfig -+++ b/drivers/watchdog/Kconfig -@@ -188,7 +188,7 @@ config SA1100_WATCHDOG - - config MPCORE_WATCHDOG - tristate "MPcore watchdog" -- depends on HAVE_ARM_TWD -+ depends on ARCH_CNS3XXX - help - Watchdog timer embedded into the MPcore system. - ---- a/drivers/watchdog/mpcore_wdt.c -+++ b/drivers/watchdog/mpcore_wdt.c -@@ -32,11 +32,14 @@ - #include <linux/uaccess.h> - #include <linux/slab.h> - #include <linux/io.h> -+#include <linux/jiffies.h> -+#include <linux/delay.h> - - #include <asm/smp_twd.h> - - struct mpcore_wdt { - unsigned long timer_alive; -+ unsigned long timer_rate; - struct device *dev; - void __iomem *base; - int irq; -@@ -98,14 +101,12 @@ static void mpcore_wdt_keepalive(struct - unsigned long count; - - spin_lock(&wdt_lock); -- /* Assume prescale is set to 256 */ -- count = __raw_readl(wdt->base + TWD_WDOG_COUNTER); -- count = (0xFFFFFFFFU - count) * (HZ / 5); -- count = (count / 256) * mpcore_margin; -+ count = (wdt->timer_rate / 256) * mpcore_margin; - - /* Reload the counter */ - writel(count + wdt->perturb, wdt->base + TWD_WDOG_LOAD); - wdt->perturb = wdt->perturb ? 0 : 1; -+ - spin_unlock(&wdt_lock); - } - -@@ -329,6 +330,8 @@ static int __devinit mpcore_wdt_probe(st - struct mpcore_wdt *wdt; - struct resource *res; - int ret; -+ unsigned long count; -+ u64 waitjiffies; - - /* We only accept one device, and it must have an id of -1 */ - if (dev->id != -1) -@@ -375,6 +378,22 @@ static int __devinit mpcore_wdt_probe(st - goto err_irq; - } - -+ waitjiffies = get_jiffies_64() + 1; -+ while (get_jiffies_64() < waitjiffies) -+ udelay(10); -+ -+ waitjiffies += 5; -+ -+ __raw_writel(0x00000001, wdt->base + TWD_WDOG_CONTROL); -+ __raw_writel(0xFFFFFFFFU, wdt->base + TWD_WDOG_LOAD); -+ -+ while (get_jiffies_64() < waitjiffies) -+ udelay(10); -+ -+ count = __raw_readl(wdt->base + TWD_WDOG_COUNTER); -+ -+ wdt->timer_rate = (0xFFFFFFFFU - count) * (HZ / 5); -+ - mpcore_wdt_stop(wdt); - platform_set_drvdata(dev, wdt); - mpcore_wdt_dev = dev; |