davinci: Add RTC support for DA8xx/OMAP-L13x SoC's
Add RTC support for the da830/omap-l137 and da850/omap-l138
SoC's by leveraging existing the rtc-omap driver.
Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index 5595613..dd0ea08 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -29,6 +29,7 @@
#define DA8XX_TPTC1_BASE 0x01c08400
#define DA8XX_WDOG_BASE 0x01c21000 /* DA8XX_TIMER64P1_BASE */
#define DA8XX_I2C0_BASE 0x01c22000
+#define DA8XX_RTC_BASE 0x01C23000
#define DA8XX_EMAC_CPPI_PORT_BASE 0x01e20000
#define DA8XX_EMAC_CPGMACSS_BASE 0x01e22000
#define DA8XX_EMAC_CPGMAC_BASE 0x01e23000
@@ -453,3 +454,37 @@
da8xx_mmcsd0_device.dev.platform_data = config;
return platform_device_register(&da8xx_mmcsd0_device);
}
+
+static struct resource da8xx_rtc_resources[] = {
+ {
+ .start = DA8XX_RTC_BASE,
+ .end = DA8XX_RTC_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ { /* timer irq */
+ .start = IRQ_DA8XX_RTC,
+ .end = IRQ_DA8XX_RTC,
+ .flags = IORESOURCE_IRQ,
+ },
+ { /* alarm irq */
+ .start = IRQ_DA8XX_RTC,
+ .end = IRQ_DA8XX_RTC,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device da8xx_rtc_device = {
+ .name = "omap_rtc",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(da8xx_rtc_resources),
+ .resource = da8xx_rtc_resources,
+};
+
+int da8xx_register_rtc(void)
+{
+ /* Unlock the rtc's registers */
+ __raw_writel(0x83e70b13, IO_ADDRESS(DA8XX_RTC_BASE + 0x6c));
+ __raw_writel(0x95a4f1e0, IO_ADDRESS(DA8XX_RTC_BASE + 0x70));
+
+ return platform_device_register(&da8xx_rtc_device);
+}