ARM: S5PV310: Add support RTC

This patch adds support RTC for S5PV310 and S5PC210.

Signed-off-by: Changhwan Youn <chaos.youn@samsung.com>
Signed-off-by: Jemings Ko <jemings@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/Kconfig

@@ -733,6 +733,7 @@ config ARCH_S5PV310
 	select GENERIC_GPIO
 	select HAVE_CLK
 	select GENERIC_CLOCKEVENTS
+	select HAVE_S3C_RTC
 	help
 	  Samsung S5PV310 series based systems
 

arch/arm/mach-s5pv310/Kconfig

@@ -33,6 +33,7 @@ config MACH_SMDKC210
 	bool "SMDKC210"
 	select CPU_S5PV310
 	select ARCH_SPARSEMEM_ENABLE
+	select S3C_DEV_RTC
 	help
 	  Machine support for Samsung SMDKC210
 	  S5PC210(MCP) is one of package option of S5PV310
@@ -53,6 +54,7 @@ config MACH_SMDKV310
 	bool "SMDKV310"
 	select CPU_S5PV310
 	select ARCH_SPARSEMEM_ENABLE
+	select S3C_DEV_RTC
 	help
 	  Machine support for Samsung SMDKV310
 

arch/arm/mach-s5pv310/clock.c

@@ -471,6 +471,11 @@ static struct clk init_clocks_disable[] = {
 		.id		= -1,
 		.enable		= s5pv310_clk_ip_peril_ctrl,
 		.ctrlbit	= (1 << 15),
+	}, {
+		.name		= "rtc",
+		.id		= -1,
+		.enable		= s5pv310_clk_ip_perir_ctrl,
+		.ctrlbit	= (1 << 15),
 	}, {
 		.name		= "watchdog",
 		.id		= -1,

arch/arm/mach-s5pv310/include/mach/irqs.h

@@ -60,6 +60,9 @@
 #define IRQ_TIMER3_VIC		COMBINER_IRQ(22, 3)
 #define IRQ_TIMER4_VIC		COMBINER_IRQ(22, 4)
 
+#define IRQ_RTC_ALARM		COMBINER_IRQ(23, 0)
+#define IRQ_RTC_TIC		COMBINER_IRQ(23, 1)
+
 #define IRQ_UART0		COMBINER_IRQ(26, 0)
 #define IRQ_UART1		COMBINER_IRQ(26, 1)
 #define IRQ_UART2		COMBINER_IRQ(26, 2)

arch/arm/mach-s5pv310/include/mach/map.h

@@ -40,6 +40,7 @@
 #define S5PV310_PA_CMU			(0x10030000)
 
 #define S5PV310_PA_WATCHDOG		(0x10060000)
+#define S5PV310_PA_RTC			(0x10070000)
 
 #define S5PV310_PA_COMBINER		(0x10448000)
 
@@ -81,6 +82,7 @@
 #define S3C_PA_HSMMC2			S5PV310_PA_HSMMC(2)
 #define S3C_PA_HSMMC3			S5PV310_PA_HSMMC(3)
 #define S3C_PA_IIC			S5PV310_PA_IIC0
+#define S3C_PA_RTC			S5PV310_PA_RTC
 #define S3C_PA_WDT			S5PV310_PA_WATCHDOG
 
 #endif /* __ASM_ARCH_MAP_H */

arch/arm/mach-s5pv310/mach-smdkc210.c

@@ -17,6 +17,7 @@
 #include <plat/regs-serial.h>
 #include <plat/s5pv310.h>
 #include <plat/cpu.h>
+#include <plat/devs.h>
 
 #include <mach/map.h>
 
@@ -65,6 +66,10 @@ static struct s3c2410_uartcfg smdkc210_uartcfgs[] __initdata = {
 	},
 };
 
+static struct platform_device *smdkc210_devices[] __initdata = {
+	&s3c_device_rtc,
+};
+
 static void __init smdkc210_map_io(void)
 {
 	s5p_init_io(NULL, 0, S5P_VA_CHIPID);
@@ -77,6 +82,8 @@ static void __init smdkc210_machine_init(void)
 #ifdef CONFIG_CACHE_L2X0
 	l2x0_init(S5P_VA_L2CC, 1 << 28, 0xffffffff);
 #endif
+
+	platform_add_devices(smdkc210_devices, ARRAY_SIZE(smdkc210_devices));
 }
 
 MACHINE_START(SMDKC210, "SMDKC210")

arch/arm/mach-s5pv310/mach-smdkv310.c

@@ -17,6 +17,7 @@
 #include <plat/regs-serial.h>
 #include <plat/s5pv310.h>
 #include <plat/cpu.h>
+#include <plat/devs.h>
 
 #include <mach/map.h>
 
@@ -65,6 +66,10 @@ static struct s3c2410_uartcfg smdkv310_uartcfgs[] __initdata = {
 	},
 };
 
+static struct platform_device *smdkv310_devices[] __initdata = {
+	&s3c_device_rtc,
+};
+
 static void __init smdkv310_map_io(void)
 {
 	s5p_init_io(NULL, 0, S5P_VA_CHIPID);
@@ -77,6 +82,8 @@ static void __init smdkv310_machine_init(void)
 #ifdef CONFIG_CACHE_L2X0
 	l2x0_init(S5P_VA_L2CC, 1 << 28, 0xffffffff);
 #endif
+
+	platform_add_devices(smdkv310_devices, ARRAY_SIZE(smdkv310_devices));
 }
 
 MACHINE_START(SMDKV310, "SMDKV310")