arm: mach-mxs: add device for rtc

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Tested-by: Shawn Guo <shawn.guo@freescale.com>
diff --git a/arch/arm/mach-mxs/devices-mx23.h b/arch/arm/mach-mxs/devices-mx23.h
index c6f345f..3fa651d 100644
--- a/arch/arm/mach-mxs/devices-mx23.h
+++ b/arch/arm/mach-mxs/devices-mx23.h
@@ -29,3 +29,5 @@
 
 struct platform_device *__init mx23_add_mxsfb(
 		const struct mxsfb_platform_data *pdata);
+
+struct platform_device *__init mx23_add_rtc_stmp3xxx(void);
diff --git a/arch/arm/mach-mxs/devices-mx28.h b/arch/arm/mach-mxs/devices-mx28.h
index c0f21ce..c888710 100644
--- a/arch/arm/mach-mxs/devices-mx28.h
+++ b/arch/arm/mach-mxs/devices-mx28.h
@@ -48,3 +48,5 @@
 
 extern const struct mxs_saif_data mx28_saif_data[] __initconst;
 #define mx28_add_saif(id)              mxs_add_saif(&mx28_saif_data[id])
+
+struct platform_device *__init mx28_add_rtc_stmp3xxx(void);
diff --git a/arch/arm/mach-mxs/devices/Kconfig b/arch/arm/mach-mxs/devices/Kconfig
index b554371..18b6bf5 100644
--- a/arch/arm/mach-mxs/devices/Kconfig
+++ b/arch/arm/mach-mxs/devices/Kconfig
@@ -26,3 +26,6 @@
 
 config MXS_HAVE_PLATFORM_MXS_SAIF
 	bool
+
+config MXS_HAVE_PLATFORM_RTC_STMP3XXX
+	bool
diff --git a/arch/arm/mach-mxs/devices/Makefile b/arch/arm/mach-mxs/devices/Makefile
index d3e8cc3..f52e3e5 100644
--- a/arch/arm/mach-mxs/devices/Makefile
+++ b/arch/arm/mach-mxs/devices/Makefile
@@ -9,3 +9,4 @@
 obj-y += platform-gpio-mxs.o
 obj-$(CONFIG_MXS_HAVE_PLATFORM_MXSFB) += platform-mxsfb.o
 obj-$(CONFIG_MXS_HAVE_PLATFORM_MXS_SAIF) += platform-mxs-saif.o
+obj-$(CONFIG_MXS_HAVE_PLATFORM_RTC_STMP3XXX) += platform-rtc-stmp3xxx.o
diff --git a/arch/arm/mach-mxs/devices/platform-rtc-stmp3xxx.c b/arch/arm/mach-mxs/devices/platform-rtc-stmp3xxx.c
new file mode 100644
index 0000000..639eaee
--- /dev/null
+++ b/arch/arm/mach-mxs/devices/platform-rtc-stmp3xxx.c
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2011 Pengutronix, Wolfram Sang <w.sang@pengutronix.de>
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation.
+ */
+#include <asm/sizes.h>
+#include <mach/mx23.h>
+#include <mach/mx28.h>
+#include <mach/devices-common.h>
+
+#ifdef CONFIG_SOC_IMX23
+struct platform_device *__init mx23_add_rtc_stmp3xxx(void)
+{
+	struct resource res[] = {
+		{
+			.start = MX23_RTC_BASE_ADDR,
+			.end = MX23_RTC_BASE_ADDR + SZ_8K - 1,
+			.flags = IORESOURCE_MEM,
+		}, {
+			.start = MX23_INT_RTC_ALARM,
+			.end = MX23_INT_RTC_ALARM,
+			.flags = IORESOURCE_IRQ,
+		},
+	};
+
+	return mxs_add_platform_device("stmp3xxx-rtc", 0, res, ARRAY_SIZE(res),
+					NULL, 0);
+}
+#endif /* CONFIG_SOC_IMX23 */
+
+#ifdef CONFIG_SOC_IMX28
+struct platform_device *__init mx28_add_rtc_stmp3xxx(void)
+{
+	struct resource res[] = {
+		{
+			.start = MX28_RTC_BASE_ADDR,
+			.end = MX28_RTC_BASE_ADDR + SZ_8K - 1,
+			.flags = IORESOURCE_MEM,
+		}, {
+			.start = MX28_INT_RTC_ALARM,
+			.end = MX28_INT_RTC_ALARM,
+			.flags = IORESOURCE_IRQ,
+		},
+	};
+
+	return mxs_add_platform_device("stmp3xxx-rtc", 0, res, ARRAY_SIZE(res),
+					NULL, 0);
+}
+#endif /* CONFIG_SOC_IMX28 */