ARM: shmobile: kzm9g: Support Real Time Clock

KZM-A9-GT board has RTC device r2025d at I2C channel 0 with slave address 0x64. This patch enables reading and writing hardware real time clock on KZM-A9-GT board. Interrupt is not yet supported. How to test this patch using user space command. Read RTC # hwclock -r Copy system clock to RTC # hwclock -w Shutdown and power off the board, and wait a while, then power on again. Check RTC still keeps correct date. Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp> Tested-by: Simon Horman <horms@verge.net.au> Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
git-mirror · Jun 21, 2012 · 080e0d1 · 080e0d1
1 parent accb90c
commit 080e0d1
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diff --git a/arch/arm/configs/kzm9g_defconfig b/arch/arm/configs/kzm9g_defconfig
@@ -108,6 +108,7 @@ CONFIG_MMC_SH_MMCIF=y
 CONFIG_NEW_LEDS=y
 CONFIG_LEDS_CLASS=y
 CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_RS5C372=y
 CONFIG_DMADEVICES=y
 CONFIG_SH_DMAE=y
 CONFIG_ASYNC_TX_DMA=y

diff --git a/arch/arm/mach-shmobile/board-kzm9g.c b/arch/arm/mach-shmobile/board-kzm9g.c
@@ -338,6 +338,9 @@ static struct pcf857x_platform_data pcf8575_pdata = {
 static struct i2c_board_info i2c0_devices[] = {
 	{
 		I2C_BOARD_INFO("ak4648", 0x12),
+	},
+	{
+		I2C_BOARD_INFO("r2025sd", 0x32),
 	}
 };
-Original file line number
+Diff line change
@@ Expand Up / @@ -338,6 +338,9 @@ static struct pcf857x_platform_data pcf8575_pdata = { @@
     static struct i2c_board_info i2c0_devices[] = {
     	{
     		I2C_BOARD_INFO("ak4648", 0x12),
+    	},
+    	{
+    		I2C_BOARD_INFO("r2025sd", 0x32),
     	}
     };
@@ Expand Down @@