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-rw-r--r--target/linux/cns21xx/patches-3.3/202-cns21xx-add-watchdog-device.patch63
1 files changed, 63 insertions, 0 deletions
diff --git a/target/linux/cns21xx/patches-3.3/202-cns21xx-add-watchdog-device.patch b/target/linux/cns21xx/patches-3.3/202-cns21xx-add-watchdog-device.patch
new file mode 100644
index 000000000..f269136c3
--- /dev/null
+++ b/target/linux/cns21xx/patches-3.3/202-cns21xx-add-watchdog-device.patch
@@ -0,0 +1,63 @@
+--- a/arch/arm/mach-cns21xx/common.h
++++ b/arch/arm/mach-cns21xx/common.h
+@@ -20,5 +20,6 @@ extern struct sys_timer cns21xx_timer;
+ int cns21xx_register_uart0(void);
+ int cns21xx_register_uart1(void);
+ int cns21xx_register_usb(void);
++int cns21xx_register_wdt(void);
+
+ #endif /* _MACH_CNS21XX_COMMON_H */
+--- a/arch/arm/mach-cns21xx/devices.c
++++ b/arch/arm/mach-cns21xx/devices.c
+@@ -11,6 +11,7 @@
+ #include <linux/init.h>
+ #include <linux/platform_device.h>
+ #include <linux/serial_8250.h>
++#include <linux/fa_wdt.h>
+
+ #include <mach/irqs.h>
+ #include <mach/hardware.h>
+@@ -77,3 +78,32 @@ int __init cns21xx_register_uart1(void)
+ HAL_MISC_ENABLE_UART1_PINS();
+ return platform_device_register(&cns21xx_uart1_device);
+ }
++
++static struct resource cns21xx_wdt_resources[] = {
++ {
++ .start = CNS21XX_WDT_BASE,
++ .end = CNS21XX_WDT_BASE + SZ_4K - 1,
++ .flags = IORESOURCE_MEM,
++ },
++};
++
++#define CNS21XX_WDT_CLOCK 10 /* 10 Hz */
++
++static struct fa_wdt_platform_data cns21xx_wdt_data = {
++ .clock = CNS21XX_WDT_CLOCK,
++};
++
++static struct platform_device cns21xx_wdt_device = {
++ .name = "fa-wdt",
++ .id = -1,
++ .resource = cns21xx_wdt_resources,
++ .num_resources = ARRAY_SIZE(cns21xx_wdt_resources),
++ .dev = {
++ .platform_data = &cns21xx_wdt_data,
++ },
++};
++
++int __init cns21xx_register_wdt(void)
++{
++ return platform_device_register(&cns21xx_wdt_device);
++}
+--- a/drivers/watchdog/Kconfig
++++ b/drivers/watchdog/Kconfig
+@@ -345,7 +345,7 @@ config IMX2_WDT
+
+ config FA_WATCHDOG
+ tristate "Faraday watchdog"
+- depends on ARCH_GEMINI
++ depends on ARCH_GEMINI || ARCH_CNS21XX
+ help
+ Say Y here if you want support for the built-in watchdog timer
+ found in some Faraday FA526 based SoCs.