5 files changed, 53 insertions, 0 deletions

diff --git a/arch/arm/mach-mmp/include/mach/pxa910.h b/arch/arm/mach-mmp/include/mach/pxa910.h
index 4de13abef7bb..e2e1f1e5e124 100644
--- a/arch/arm/mach-mmp/include/mach/pxa910.h
+++ b/arch/arm/mach-mmp/include/mach/pxa910.h
@@ -22,6 +22,7 @@ extern struct pxa_device_desc pxa910_device_pwm4;
 extern struct pxa_device_desc pxa910_device_nand;
 
 extern struct platform_device pxa910_device_gpio;
+extern struct platform_device pxa910_device_rtc;
 
 static inline int pxa910_add_uart(int id)
 {
diff --git a/arch/arm/mach-mmp/include/mach/regs-apbc.h b/arch/arm/mach-mmp/include/mach/regs-apbc.h
index 1a96585336ba..8a37fb003655 100644
--- a/arch/arm/mach-mmp/include/mach/regs-apbc.h
+++ b/arch/arm/mach-mmp/include/mach/regs-apbc.h
@@ -57,6 +57,7 @@
 #define APBC_PXA910_SSP1        APBC_REG(0x01c)
 #define APBC_PXA910_SSP2        APBC_REG(0x020)
 #define APBC_PXA910_IPC         APBC_REG(0x024)
+#define APBC_PXA910_RTC         APBC_REG(0x028)
 #define APBC_PXA910_TWSI0       APBC_REG(0x02c)
 #define APBC_PXA910_KPC         APBC_REG(0x030)
 #define APBC_PXA910_TIMERS      APBC_REG(0x034)
diff --git a/arch/arm/mach-mmp/include/mach/regs-rtc.h b/arch/arm/mach-mmp/include/mach/regs-rtc.h
new file mode 100644
index 000000000000..5bff886a3941
--- /dev/null
+++ b/arch/arm/mach-mmp/include/mach/regs-rtc.h
@@ -0,0 +1,23 @@
+#ifndef __ASM_MACH_REGS_RTC_H
+#define __ASM_MACH_REGS_RTC_H
+
+#include <mach/addr-map.h>
+
+#define RTC_VIRT_BASE   (APB_VIRT_BASE + 0x10000)
+#define RTC_REG(x)      (*((volatile u32 __iomem *)(RTC_VIRT_BASE + (x))))
+
+/*
+ * Real Time Clock
+ */
+
+#define RCNR            RTC_REG(0x00)   /* RTC Count Register */
+#define RTAR            RTC_REG(0x04)   /* RTC Alarm Register */
+#define RTSR            RTC_REG(0x08)   /* RTC Status Register */
+#define RTTR            RTC_REG(0x0C)   /* RTC Timer Trim Register */
+
+#define RTSR_HZE        (1 << 3)        /* HZ interrupt enable */
+#define RTSR_ALE        (1 << 2)        /* RTC alarm interrupt enable */
+#define RTSR_HZ         (1 << 1)        /* HZ rising-edge detected */
+#define RTSR_AL         (1 << 0)        /* RTC alarm detected */
+
+#endif /* __ASM_MACH_REGS_RTC_H */
diff --git a/arch/arm/mach-mmp/pxa910.c b/arch/arm/mach-mmp/pxa910.c
index 3241a25784d0..b6e152723974 100644
--- a/arch/arm/mach-mmp/pxa910.c
+++ b/arch/arm/mach-mmp/pxa910.c
@@ -92,6 +92,7 @@ static APBC_CLK(pwm2, PXA910_PWM2, 1, 13000000);
 static APBC_CLK(pwm3, PXA910_PWM3, 1, 13000000);
 static APBC_CLK(pwm4, PXA910_PWM4, 1, 13000000);
 static APBC_CLK(gpio, PXA910_GPIO, 0, 13000000);
+static APBC_CLK(rtc, PXA910_RTC, 8, 32768);
 
 static APMU_CLK(nand, NAND, 0x19b, 156000000);
 static APMU_CLK(u2o, USB, 0x1b, 480000000);
@@ -109,6 +110,7 @@ static struct clk_lookup pxa910_clkregs[] = {
         INIT_CLKREG(&clk_nand, "pxa3xx-nand", NULL),
         INIT_CLKREG(&clk_gpio, "pxa-gpio", NULL),
         INIT_CLKREG(&clk_u2o, "pxa-u2o", "U2OCLK"),
+        INIT_CLKREG(&clk_rtc, "sa1100-rtc", NULL),
 };
 
 static int __init pxa910_init(void)
@@ -183,3 +185,28 @@ struct platform_device pxa910_device_gpio = {
         .num_resources  = ARRAY_SIZE(pxa910_resource_gpio),
         .resource       = pxa910_resource_gpio,
 };
+
+static struct resource pxa910_resource_rtc[] = {
+        {
+                .start  = 0xd4010000,
+                .end    = 0xd401003f,
+                .flags  = IORESOURCE_MEM,
+        }, {
+                .start  = IRQ_PXA910_RTC_INT,
+                .end    = IRQ_PXA910_RTC_INT,
+                .name   = "rtc 1Hz",
+                .flags  = IORESOURCE_IRQ,
+        }, {
+                .start  = IRQ_PXA910_RTC_ALARM,
+                .end    = IRQ_PXA910_RTC_ALARM,
+                .name   = "rtc alarm",
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+struct platform_device pxa910_device_rtc = {
+        .name           = "sa1100-rtc",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(pxa910_resource_rtc),
+        .resource       = pxa910_resource_rtc,
+};
diff --git a/arch/arm/mach-mmp/ttc_dkb.c b/arch/arm/mach-mmp/ttc_dkb.c
index 5ac5d5832e45..e72c709da44f 100644
--- a/arch/arm/mach-mmp/ttc_dkb.c
+++ b/arch/arm/mach-mmp/ttc_dkb.c
@@ -124,6 +124,7 @@ static struct platform_device ttc_dkb_device_onenand = {
 
 static struct platform_device *ttc_dkb_devices[] = {
         &pxa910_device_gpio,
+        &pxa910_device_rtc,
         &ttc_dkb_device_onenand,
 };