diff options
| author | Tetsuyuki Kobayashi <koba@kmckk.co.jp> | 2012-06-20 12:57:51 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2012-06-21 12:02:56 +0200 |
| commit | 080e0d1384a3fce16b7d5324dbfc47c136cc3573 (patch) | |
| tree | b35bdb5729d407670b8edb87d189b57ffaa6f806 /arch/arm | |
| parent | accb90c8f3b5c22c9d2893c775e98abb4a0d6bd3 (diff) | |
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>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/configs/kzm9g_defconfig | 1 | ||||
| -rw-r--r-- | arch/arm/mach-shmobile/board-kzm9g.c | 3 |
2 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/configs/kzm9g_defconfig b/arch/arm/configs/kzm9g_defconfig index e3ebc20ed0a7..686129f3a937 100644 --- 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 index 7523e9e6d129..a5cb11358e00 100644 --- 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), } }; |