DaVinci: DM365: Enable DaVinci RTC support for DM365 EVM

The general structures are defined at DM365 SoC file and the specific
platform data structure for the EVM is defined at board file.

Signed-off-by: Miguel Aguilar <miguel.aguilar@ridgerun.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

4 files changed, 31 insertions, 0 deletions

diff --git a/arch/arm/mach-davinci/board-dm365-evm.c b/arch/arm/mach-davinci/board-dm365-evm.c
index 19678dc91b09..289fe1b7d25a 100644
--- a/arch/arm/mach-davinci/board-dm365-evm.c
+++ b/arch/arm/mach-davinci/board-dm365-evm.c
@@ -510,6 +510,7 @@ static __init void dm365_evm_init(void)
         evm_init_cpld();
 
         dm365_init_asp(&dm365_evm_snd_data);
+        dm365_init_rtc();
 
 #ifdef CONFIG_KEYBOARD_DAVINCI
         dm365_init_ks(&dm365evm_ks_data);
diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index c12bb005b90d..2ec619ec1657 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -699,6 +699,7 @@ static u8 dm365_default_priorities[DAVINCI_N_AINTC_IRQ] = {
         [IRQ_I2C]                       = 3,
         [IRQ_UARTINT0]                  = 3,
         [IRQ_UARTINT1]                  = 3,
+        [IRQ_DM365_RTCINT]              = 3,
         [IRQ_DM365_SPIINT0_0]           = 3,
         [IRQ_DM365_SPIINT3_0]           = 3,
         [IRQ_DM365_GPIO0]               = 3,
@@ -834,6 +835,25 @@ static struct platform_device dm365_asp_device = {
         .resource       = dm365_asp_resources,
 };
 
+static struct resource dm365_rtc_resources[] = {
+        {
+                .start = DM365_RTC_BASE,
+                .end = DM365_RTC_BASE + SZ_1K - 1,
+                .flags = IORESOURCE_MEM,
+        },
+        {
+                .start = IRQ_DM365_RTCINT,
+                .flags = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device dm365_rtc_device = {
+        .name = "rtc_davinci",
+        .id = 0,
+        .num_resources = ARRAY_SIZE(dm365_rtc_resources),
+        .resource = dm365_rtc_resources,
+};
+
 static struct map_desc dm365_io_desc[] = {
         {
                 .virtual        = IO_VIRT,
@@ -978,6 +998,12 @@ void __init dm365_init_ks(struct davinci_ks_platform_data *pdata)
         platform_device_register(&dm365_ks_device);
 }
 
+void __init dm365_init_rtc(void)
+{
+        davinci_cfg_reg(DM365_INT_PRTCSS);
+        platform_device_register(&dm365_rtc_device);
+}
+
 void __init dm365_init(void)
 {
         davinci_common_init(&davinci_soc_info_dm365);
diff --git a/arch/arm/mach-davinci/include/mach/dm365.h b/arch/arm/mach-davinci/include/mach/dm365.h
index d8d988a0b58b..f1710a30e7ba 100644
--- a/arch/arm/mach-davinci/include/mach/dm365.h
+++ b/arch/arm/mach-davinci/include/mach/dm365.h
@@ -29,8 +29,11 @@
 /* Base of key scan register bank */
 #define DM365_KEYSCAN_BASE              (0x01C69400)
 
+#define DM365_RTC_BASE                  (0x01C69000)
+
 void __init dm365_init(void);
 void __init dm365_init_asp(struct snd_platform_data *pdata);
 void __init dm365_init_ks(struct davinci_ks_platform_data *pdata);
+void __init dm365_init_rtc(void);
 
 #endif /* __ASM_ARCH_DM365_H */
diff --git a/arch/arm/mach-davinci/include/mach/irqs.h b/arch/arm/mach-davinci/include/mach/irqs.h
index 3c918a772619..354af71798dc 100644
--- a/arch/arm/mach-davinci/include/mach/irqs.h
+++ b/arch/arm/mach-davinci/include/mach/irqs.h
@@ -217,6 +217,7 @@
 #define IRQ_DM365_SDIOINT0      23
 #define IRQ_DM365_MMCINT1       27
 #define IRQ_DM365_PWMINT3       28
+#define IRQ_DM365_RTCINT        29
 #define IRQ_DM365_SDIOINT1      31
 #define IRQ_DM365_SPIINT0_0     42
 #define IRQ_DM365_SPIINT3_0     43