ARM: 6604/1: Gemini: add platform support for Gemini RTC

adds rtc support for all Gemini SoC boards
nas4220b, rut1xx, wbd111, wbd222

Signed-off-by: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

6 files changed, 31 insertions, 0 deletions

diff --git a/arch/arm/mach-gemini/board-nas4220b.c b/arch/arm/mach-gemini/board-nas4220b.c
index 2ba096de0034..0cf7a07c3f3f 100644
--- a/arch/arm/mach-gemini/board-nas4220b.c
+++ b/arch/arm/mach-gemini/board-nas4220b.c
@@ -98,6 +98,7 @@ static void __init ib4220b_init(void)
         platform_register_pflash(SZ_16M, NULL, 0);
         platform_device_register(&ib4220b_led_device);
         platform_device_register(&ib4220b_key_device);
+        platform_register_rtc();
 }
 
 MACHINE_START(NAS4220B, "Raidsonic NAS IB-4220-B")
diff --git a/arch/arm/mach-gemini/board-rut1xx.c b/arch/arm/mach-gemini/board-rut1xx.c
index a9a0d8b01942..4fa09af99495 100644
--- a/arch/arm/mach-gemini/board-rut1xx.c
+++ b/arch/arm/mach-gemini/board-rut1xx.c
@@ -82,6 +82,7 @@ static void __init rut1xx_init(void)
         platform_register_pflash(SZ_8M, NULL, 0);
         platform_device_register(&rut1xx_leds);
         platform_device_register(&rut1xx_keys_device);
+        platform_register_rtc();
 }
 
 MACHINE_START(RUT100, "Teltonika RUT100")
diff --git a/arch/arm/mach-gemini/board-wbd111.c b/arch/arm/mach-gemini/board-wbd111.c
index 8b88d50d4337..af7b68a6b258 100644
--- a/arch/arm/mach-gemini/board-wbd111.c
+++ b/arch/arm/mach-gemini/board-wbd111.c
@@ -130,6 +130,7 @@ static void __init wbd111_init(void)
                                  wbd111_num_partitions);
         platform_device_register(&wbd111_leds_device);
         platform_device_register(&wbd111_keys_device);
+        platform_register_rtc();
 }
 
 MACHINE_START(WBD111, "Wiliboard WBD-111")
diff --git a/arch/arm/mach-gemini/board-wbd222.c b/arch/arm/mach-gemini/board-wbd222.c
index 1eebcecd1c33..99e5bbecf923 100644
--- a/arch/arm/mach-gemini/board-wbd222.c
+++ b/arch/arm/mach-gemini/board-wbd222.c
@@ -130,6 +130,7 @@ static void __init wbd222_init(void)
                 wbd222_num_partitions);
         platform_device_register(&wbd222_leds_device);
         platform_device_register(&wbd222_keys_device);
+        platform_register_rtc();
 }
 
 MACHINE_START(WBD222, "Wiliboard WBD-222")
diff --git a/arch/arm/mach-gemini/common.h b/arch/arm/mach-gemini/common.h
index 9392834a214f..7670c39acb2f 100644
--- a/arch/arm/mach-gemini/common.h
+++ b/arch/arm/mach-gemini/common.h
@@ -18,6 +18,7 @@ extern void gemini_map_io(void);
 extern void gemini_init_irq(void);
 extern void gemini_timer_init(void);
 extern void gemini_gpio_init(void);
+extern void platform_register_rtc(void);
 
 /* Common platform devices registration functions */
 extern int platform_register_uart(void);
diff --git a/arch/arm/mach-gemini/devices.c b/arch/arm/mach-gemini/devices.c
index 6b525253d027..5cff29818b73 100644
--- a/arch/arm/mach-gemini/devices.c
+++ b/arch/arm/mach-gemini/devices.c
@@ -90,3 +90,29 @@ int platform_register_pflash(unsigned int size, struct mtd_partition *parts,
 
         return platform_device_register(&pflash_device);
 }
+
+static struct resource gemini_rtc_resources[] = {
+        [0] = {
+                .start  = GEMINI_RTC_BASE,
+                .end    = GEMINI_RTC_BASE + 0x24,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = IRQ_RTC,
+                .end    = IRQ_RTC,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device gemini_rtc_device = {
+        .name           = "rtc-gemini",
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(gemini_rtc_resources),
+        .resource       = gemini_rtc_resources,
+};
+
+int __init platform_register_rtc(void)
+{
+        return platform_device_register(&gemini_rtc_device);
+}
+