diff options
Diffstat (limited to 'target/linux/storm/patches/009-watchdog.patch')
| -rw-r--r-- | target/linux/storm/patches/009-watchdog.patch | 398 |
1 files changed, 0 insertions, 398 deletions
diff --git a/target/linux/storm/patches/009-watchdog.patch b/target/linux/storm/patches/009-watchdog.patch deleted file mode 100644 index a76ce7f49c..0000000000 --- a/target/linux/storm/patches/009-watchdog.patch +++ /dev/null @@ -1,398 +0,0 @@ ---- a/arch/arm/mach-sl2312/sl3516_device.c -+++ b/arch/arm/mach-sl2312/sl3516_device.c -@@ -76,9 +76,30 @@ static struct platform_device sata0_devi - .resource = sl3516_sata0_resources, - }; - -+static struct resource sl351x_wdt_resources[] = { -+ [0] = { -+ .start = SL2312_WAQTCHDOG_BASE + 0x00, -+ .end = SL2312_WAQTCHDOG_BASE + 0x1C, -+ .flags = IORESOURCE_MEM, -+ }, -+ [1] = { -+ .start = IRQ_WATCHDOG, -+ .end = IRQ_WATCHDOG, -+ .flags = IORESOURCE_IRQ, -+ }, -+}; -+ -+static struct platform_device sl351x_wdt = { -+ .name = "sl351x-wdt", -+ .id = -1, -+ .resource = sl351x_wdt_resources, -+ .num_resources = ARRAY_SIZE(sl351x_wdt_resources), -+}; -+ - static struct platform_device *sata_devices[] __initdata = { - &sata_device, - &sata0_device, -+ &sl351x_wdt, - }; - - static int __init sl3516_init(void) ---- a/drivers/char/watchdog/Kconfig -+++ b/drivers/char/watchdog/Kconfig -@@ -171,6 +171,17 @@ config EP93XX_WATCHDOG - To compile this driver as a module, choose M here: the - module will be called ep93xx_wdt. - -+config WATCHDOG_SL351X -+ tristate "SL351x Watchdog" -+ depends on WATCHDOG && ARCH_SL2312 -+ help -+ This driver adds watchdog support for the integrated watchdog in the -+ SL351x processors (Farraday core). If you have one of these processors -+ and wish to have watchdog support enabled, say Y, otherwise say N. -+ -+ To compile this driver as a module, choose M here: the -+ module will be called sl351x_wdt. -+ - config OMAP_WATCHDOG - tristate "OMAP Watchdog" - depends on ARCH_OMAP16XX || ARCH_OMAP24XX ---- a/drivers/char/watchdog/Makefile -+++ b/drivers/char/watchdog/Makefile -@@ -36,6 +36,7 @@ obj-$(CONFIG_S3C2410_WATCHDOG) += s3c241 - obj-$(CONFIG_SA1100_WATCHDOG) += sa1100_wdt.o - obj-$(CONFIG_MPCORE_WATCHDOG) += mpcore_wdt.o - obj-$(CONFIG_EP93XX_WATCHDOG) += ep93xx_wdt.o -+obj-$(CONFIG_WATCHDOG_SL351X) += sl351x_wdt.o - obj-$(CONFIG_PNX4008_WATCHDOG) += pnx4008_wdt.o - obj-$(CONFIG_IOP_WATCHDOG) += iop_wdt.o - obj-$(CONFIG_DAVINCI_WATCHDOG) += davinci_wdt.o ---- /dev/null -+++ b/drivers/char/watchdog/sl351x_wdt.c -@@ -0,0 +1,332 @@ -+#include <linux/module.h> -+#include <linux/types.h> -+#include <linux/fs.h> -+#include <linux/mm.h> -+#include <linux/errno.h> -+#include <linux/init.h> -+#include <linux/miscdevice.h> -+#include <linux/watchdog.h> -+#include <linux/platform_device.h> -+#include <asm/uaccess.h> -+#include <asm/arch/sl2312.h> -+#include <asm/arch/hardware.h> -+#include <asm/arch/irqs.h> -+#include <asm/arch/watchdog.h> -+#include <asm/io.h> -+#include <linux/interrupt.h> -+ -+#define WATCHDOG_TEST 1 -+#define PFX "sl351x-wdt: " -+ -+#define _WATCHDOG_COUNTER 0x00 -+#define _WATCHDOG_LOAD 0x04 -+#define _WATCHDOG_RESTART 0x08 -+#define _WATCHDOG_CR 0x0C -+#define _WATCHDOG_STATUS 0x10 -+#define _WATCHDOG_CLEAR 0x14 -+#define _WATCHDOG_INTRLEN 0x18 -+ -+static struct resource *wdt_mem; -+static struct resource *wdt_irq; -+static void __iomem *wdt_base; -+static int wdt_margin = WATCHDOG_TIMEOUT_MARGIN; /* in range of 0 .. 60s */ -+ -+static int open_state = WATCHDOG_DRIVER_CLOSE; -+static int wd_expire = 0; -+ -+static void watchdog_enable(void) -+{ -+ unsigned long wdcr; -+ -+ wdcr = readl(wdt_base + _WATCHDOG_CR); -+ wdcr |= (WATCHDOG_WDENABLE_MSK|WATCHDOG_WDRST_MSK); -+#ifdef WATCHDOG_TEST -+ wdcr |= WATCHDOG_WDINTR_MSK; -+// wdcr &= ~WATCHDOG_WDRST_MSK; -+#endif -+ wdcr &= ~WATCHDOG_WDCLOCK_MSK; -+ writel(wdcr, wdt_base + _WATCHDOG_CR); -+} -+ -+static void watchdog_set_timeout(unsigned long timeout) -+{ -+ timeout = WATCHDOG_TIMEOUT_SCALE * timeout; -+ writel(timeout, wdt_base + _WATCHDOG_LOAD); -+ writel(WATCHDOG_RESTART_VALUE, wdt_base + _WATCHDOG_RESTART); -+} -+ -+static void watchdog_keepalive(void) -+{ -+ writel(WATCHDOG_RESTART_VALUE, wdt_base + _WATCHDOG_RESTART); -+} -+ -+static void watchdog_disable(void) -+{ -+ unsigned long wdcr; -+ -+ wdcr = readl(wdt_base + _WATCHDOG_CR); -+ wdcr &= ~WATCHDOG_WDENABLE_MSK; -+ writel(wdcr, wdt_base + _WATCHDOG_CR); -+} -+ -+ -+#ifdef WATCHDOG_TEST -+static irqreturn_t watchdog_irq(int irq, void *dev_id, struct pt_regs *regs) -+{ -+ unsigned int clear; -+ -+ writel(WATCHDOG_CLEAR_STATUS, wdt_base + _WATCHDOG_CLEAR); -+ printk(KERN_INFO PFX "Watchdog timeout, resetting system...\n"); -+ -+ clear = __raw_readl(IO_ADDRESS(SL2312_INTERRUPT_BASE)+0x0C); -+ clear &= 0x01; -+ __raw_writel(clear,IO_ADDRESS(SL2312_INTERRUPT_BASE)+0x08); -+ wd_expire = 1; -+ return IRQ_HANDLED; -+} -+ -+#endif -+ -+#define OPTIONS WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE -+static struct watchdog_info sl351x_wdt_ident = { -+ .options = OPTIONS, -+ .firmware_version = 0, -+ .identity = "sl351x Watchdog", -+}; -+ -+struct file_operations watchdog_fops = { -+ .write = watchdog_write, -+ .read = watchdog_read, -+ .open = watchdog_open, -+ .release = watchdog_release, -+ .ioctl = watchdog_ioctl, -+}; -+ -+static int watchdog_open(struct inode *inode, struct file *filp) -+{ -+ if (open_state == WATCHDOG_DRIVER_OPEN) -+ return -EBUSY; -+ -+ wd_expire = 0; -+ -+ watchdog_disable(); -+ watchdog_set_timeout(wdt_margin); -+ watchdog_enable(); -+ -+ printk(KERN_INFO PFX "watchog timer enabled, margin: %ds.\n", wdt_margin); -+ open_state = WATCHDOG_DRIVER_OPEN; -+ -+ return nonseekable_open(inode, filp); -+} -+ -+static int watchdog_release(struct inode *inode, struct file *filp) -+{ -+ watchdog_disable(); -+ -+ open_state = WATCHDOG_DRIVER_CLOSE; -+ wd_expire = 0; -+ printk(KERN_INFO PFX "watchog timer disabled, margin: %ds.\n", wdt_margin); -+ -+ return 0; -+} -+ -+static ssize_t watchdog_read(struct file *filp, char *buf, size_t count, loff_t *off) -+{ -+ int i; -+ unsigned long val; -+ -+ -+ for(i=0;i< count;i++) -+ { -+ if ((i%4)==0) -+ val = *((unsigned long *)WATCHDOG_COUNTER); -+ buf[i] = (val & 0xFF); -+ val >>= 8; -+ } -+ return count; -+} -+ -+static ssize_t watchdog_write(struct file *filp, const char *buf, size_t len, loff_t *off) -+{ -+ /* Refresh the timer. */ -+ if (len) { -+ watchdog_keepalive(); -+ } -+ return len; -+ -+} -+ -+static int watchdog_ioctl(struct inode *inode, struct file *filp, -+ unsigned int cmd, unsigned long arg) -+{ -+ void __user *argp = (void __user *)arg; -+ int margin; -+ -+ switch(cmd) -+ { -+ case WDIOC_GETSUPPORT: -+ return copy_to_user(argp, &sl351x_wdt_ident, -+ sizeof(sl351x_wdt_ident)) ? -EFAULT : 0; -+ -+ case WDIOC_GETSTATUS: -+ case WDIOC_GETBOOTSTATUS: -+ return put_user(0, (int __user*)argp); -+ -+ case WDIOC_KEEPALIVE: -+ watchdog_keepalive(); -+ return 0; -+ -+ case WDIOC_SETTIMEOUT: -+ if (get_user(margin, (int __user*)argp)) -+ return -EFAULT; -+ -+ /* Arbitrary, can't find the card's limits */ -+ if ((margin < 0) || (margin > 60)) -+ return -EINVAL; -+ -+ // watchdog_disable(); -+ wdt_margin = margin; -+ watchdog_set_timeout(margin); -+ watchdog_keepalive(); -+ // watchdog_enable(); -+ -+ /* Fall through */ -+ -+ case WDIOC_GETTIMEOUT: -+ return put_user(wdt_margin, (int *)arg); -+ -+ default: -+ return -ENOIOCTLCMD; -+ } -+} -+ -+static struct miscdevice wd_dev= { -+ WATCHDOG_MINOR, -+ "watchdog", -+ &watchdog_fops -+}; -+ -+static char banner[] __initdata = KERN_INFO "SL351x Watchdog Timer, (c) 2007 WILIBOX\n"; -+ -+static int sl351x_wdt_probe(struct platform_device *pdev) -+{ -+ struct resource *res; -+ int ret, size; -+ unsigned long wdcr; -+ -+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); -+ if (res == NULL) { -+ printk(KERN_INFO PFX "failed to get memory region resouce\n"); -+ return -ENOMEM; -+ } -+ -+ size = (res->end-res->start)+1; -+ -+ wdt_mem = request_mem_region(res->start, size, pdev->name); -+ if (wdt_mem == NULL) { -+ printk(KERN_INFO PFX "failed to get memory region\n"); -+ return -ENOENT; -+ } -+ -+ wdt_base = ioremap(res->start, size); -+ if (wdt_base == NULL) { -+ printk(KERN_INFO PFX "failed to ioremap() region\n"); -+ return -EINVAL; -+ } -+ -+ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); -+ if (res == NULL) { -+ printk(KERN_INFO PFX "failed to get irq resource\n"); -+ return -ENOENT; -+ } -+ -+ wdt_irq = res; -+ -+ ret = request_irq(res->start, watchdog_irq, 0, pdev->name, pdev); -+ if (ret != 0) { -+ printk(KERN_INFO PFX "failed to install irq (%d)\n", ret); -+ return ret; -+ } -+ -+ wdcr = readl(wdt_base + _WATCHDOG_CR); -+ if (wdcr & WATCHDOG_WDENABLE_MSK) { -+ printk(KERN_INFO PFX "Found watchdog in enabled state, reseting ...\n"); -+ wdcr &= ~WATCHDOG_WDENABLE_MSK; -+ writel(wdcr, wdt_base + _WATCHDOG_CR); -+ } -+ -+ ret = misc_register(&wd_dev); -+ -+ return ret; -+} -+ -+static int sl351x_wdt_remove(struct platform_device *pdev) -+{ -+ if (wdt_base != NULL) { -+ iounmap(wdt_base); -+ wdt_base = NULL; -+ } -+ -+ if (wdt_irq != NULL) { -+ free_irq(wdt_irq->start, pdev); -+ release_resource(wdt_irq); -+ wdt_irq = NULL; -+ } -+ -+ if (wdt_mem != NULL) { -+ release_resource(wdt_mem); -+ wdt_mem = NULL; -+ } -+ -+ misc_deregister(&wd_dev); -+ -+ return 0; -+} -+ -+static void sl351x_wdt_shutdown(struct platform_device *dev) -+{ -+ watchdog_disable(); -+} -+ -+#ifdef CONFIG_PM -+static int sl351x_wdt_suspend(struct platform_device *dev, pm_message_t state) -+{ -+ watchdog_disable(); -+} -+ -+static int sl351x_wdt_resume(struct platform_device *dev) -+{ -+ watchdog_set_timeout(wdt_margin); -+ watchdog_enable(); -+} -+ -+#else -+#define sl351x_wdt_suspend NULL -+#define sl351x_wdt_resume NULL -+#endif -+ -+static struct platform_driver sl351x_wdt_driver = { -+ .probe = sl351x_wdt_probe, -+ .remove = sl351x_wdt_remove, -+ .shutdown = sl351x_wdt_shutdown, -+ .suspend = sl351x_wdt_suspend, -+ .resume = sl351x_wdt_resume, -+ .driver = { -+ .owner = THIS_MODULE, -+ .name = "sl351x-wdt", -+ }, -+}; -+ -+static int __init watchdog_init(void) -+{ -+ printk(banner); -+ return platform_driver_register(&sl351x_wdt_driver); -+} -+ -+static void __exit watchdog_exit(void) -+{ -+ platform_driver_unregister(&sl351x_wdt_driver); -+} -+ -+module_init(watchdog_init); -+module_exit(watchdog_exit); |