ramips: add watchdog device for RT288x

[openwrt/svn-archive/archive.git] / target / linux / ramips / files / arch / mips / ralink / rt288x / devices.c

diff --git a/target/linux/ramips/files/arch/mips/ralink/rt288x/devices.c b/target/linux/ramips/files/arch/mips/ralink/rt288x/devices.c
index 6a5cf392e0bdeba2abbce8b8d6257f2f29a0a215..fd6122f581f39007b7457142960e61e674d39fc4 100644 (file)
--- a/target/linux/ramips/files/arch/mips/ralink/rt288x/devices.c
+++ b/target/linux/ramips/files/arch/mips/ralink/rt288x/devices.c
@@ -171,3 +171,30 @@ void __init rt288x_register_ethernet(void)
 
        platform_device_register(&rt288x_eth_device);
 }
 
        platform_device_register(&rt288x_eth_device);
 }

+
+static struct resource rt288x_wdt_resources[] = {
+       {
+               .start  = RT2880_TIMER_BASE,
+               .end    = RT2880_TIMER_BASE + RT2880_TIMER_SIZE - 1,
+               .flags  = IORESOURCE_MEM,
+       },
+};
+
+static struct platform_device rt288x_wdt_device = {
+       .name           = "ramips-wdt",
+       .id             = -1,
+       .resource       = rt288x_wdt_resources,
+       .num_resources  = ARRAY_SIZE(rt288x_wdt_resources),
+};
+
+void __init rt288x_register_wdt(void)
+{
+       u32 t;
+
+       /* enable WDT reset output on pin SRAM_CS_N */
+       t = rt288x_sysc_rr(SYSC_REG_CLKCFG);
+       t |= CLKCFG_SRAM_CS_N_WDT;
+       rt288x_sysc_wr(t, SYSC_REG_CLKCFG);
+
+       platform_device_register(&rt288x_wdt_device);
+}