1 files changed, 83 insertions, 1 deletions
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index bdb2388ef4c..ebe383ded55 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -281,6 +281,86 @@ static int omap34xx_do_sram_idle(unsigned long save_state)
 	return 0;
 }
 
+static u32 wkup_debug_get_reg(phys_addr_t reg)
+{
+	u32 val;
+	char *baseptr = ioremap(reg, 4);
+
+	val = *(u32 *)baseptr;
+	iounmap(baseptr);
+
+	return val;
+}
+
+struct wkup_debug_t {
+	char name[20];
+	u32 reg;
+};
+
+struct wkup_debug_t wkup_debug_map[] = {
+	{
+		.reg = 0x4831001C,
+		.name = "GPIO_IRQENABLE1",
+	},
+	{
+		.reg = 0x48310020,
+		.name = "GPIO_WAKEUPENABLE",
+	},
+	{
+		.reg = 0x48310010,
+		.name = "GPIO_SYSCONFIG",
+	},
+	{
+		.reg = 0x48310064,
+		.name = "GPIO_SETIRQENABLE1",
+	},
+	{
+		.reg = 0x48310084,
+		.name = "GPIO_SETWKUENA",
+	},
+	{
+		.reg = 0x48310048,
+		.name = "GPIO_RISINGDETECT",
+	},
+	{
+		.reg = 0x4831004C,
+		.name = "GPIO_FALLINGDETECT",
+	},
+	{
+		.reg = 0x4830681C,
+		.name = "PRM_IRQENABLE_MPU",
+	},
+	{
+		.reg = 0x483069C8,
+		.name = "PM_WKDEP_MPU",
+	},
+	{
+		.reg = 0x48306CA4,
+		.name = "PM_MPUGRPSEL_WKUP",
+	},
+	{
+		.reg = 0x48306CA0,
+		.name = "PM_WKEN_WKUP",
+	},
+	{
+		.reg = 0x48306CB0,
+		.name = "PM_WKST_WKUP",
+	},
+};
+
+static void wkup_debug_print_regs(void)
+{
+	int i;
+	u32 val;
+	struct wkup_debug_t *p = wkup_debug_map;
+
+	for (i = 0; i < ARRAY_SIZE(wkup_debug_map); i++) {
+		val = wkup_debug_get_reg(p->reg);
+		trace_printk("%s, 0x%x, val: 0x%x\n", p->name, p->reg, val);
+		p++;
+	}
+}
+
 void omap_sram_idle(bool in_suspend)
 {
 	/* Variable to tell what needs to be saved and restored
@@ -360,8 +440,10 @@ void omap_sram_idle(bool in_suspend)
 	    core_next_state == PWRDM_POWER_OFF)
 		sdrc_pwr = sdrc_read_reg(SDRC_POWER);
 
-	if (suspend_debug)
+	if (suspend_debug) {
 		pm_dbg_regs_save(1);
+		wkup_debug_print_regs();
+	}
 
 	/*
 	 * omap3_arm_context is the location where some ARM context