[PATCH v2] ARM: shmobile: armadillo800eva: Add support RTC
From: Nobuhiro Iwamatsu <hidden>
Date: 2012-09-13 05:10:10
The armadillo800eva has S35390A which is RTC. This is controlled using I2C of GPIO. This commit supports RTC of armadillo800eva. Signed-off-by: Nobuhiro Iwamatsu <redacted> --- v2: Update and add defconfig for armadillo800eva arch/arm/configs/armadillo800eva_defconfig | 12 +++++------- arch/arm/mach-shmobile/board-armadillo800eva.c | 25 ++++++++++++++++++++++++ 2 files changed, 30 insertions(+), 7 deletions(-)
diff --git a/arch/arm/configs/armadillo800eva_defconfig b/arch/arm/configs/armadillo800eva_defconfig
index 7d87184..62861bd 100644
--- a/arch/arm/configs/armadillo800eva_defconfig
+++ b/arch/arm/configs/armadillo800eva_defconfig@@ -18,7 +18,6 @@ CONFIG_ARCH_SHMOBILE=y CONFIG_ARCH_R8A7740=y CONFIG_MACH_ARMADILLO800EVA=y # CONFIG_SH_TIMER_TMU is not set -CONFIG_ARM_THUMB=y CONFIG_CPU_BPREDICT_DISABLE=y # CONFIG_CACHE_L2X0 is not set CONFIG_ARM_ERRATA_430973=y
@@ -85,18 +84,16 @@ CONFIG_SERIAL_SH_SCI_NR_UARTS=8 CONFIG_SERIAL_SH_SCI_CONSOLE=y # CONFIG_HW_RANDOM is not set CONFIG_I2C=y +CONFIG_I2C_GPIO=y CONFIG_I2C_SH_MOBILE=y # CONFIG_HWMON is not set CONFIG_MEDIA_SUPPORT=y -CONFIG_VIDEO_DEV=y -# CONFIG_RC_CORE is not set -# CONFIG_VIDEO_HELPER_CHIPS_AUTO is not set -# CONFIG_V4L_USB_DRIVERS is not set +CONFIG_MEDIA_CAMERA_SUPPORT=y +# CONFIG_USB_GSPCA is not set CONFIG_V4L_PLATFORM_DRIVERS=y CONFIG_SOC_CAMERA=y CONFIG_SOC_CAMERA_MT9T112=y CONFIG_VIDEO_SH_MOBILE_CEU=y -# CONFIG_RADIO_ADAPTERS is not set CONFIG_FB=y CONFIG_FB_SH_MOBILE_LCDC=y CONFIG_FB_SH_MOBILE_HDMI=y
@@ -111,7 +108,6 @@ CONFIG_LOGO=y # CONFIG_SND_DRIVERS is not set # CONFIG_SND_ARM is not set CONFIG_SND_SOC_SH4_FSI=y -# CONFIG_HID_SUPPORT is not set CONFIG_USB=y CONFIG_USB_RENESAS_USBHS=y CONFIG_USB_GADGET=y
@@ -120,6 +116,8 @@ CONFIG_USB_ETH=m CONFIG_MMC=y CONFIG_MMC_SDHI=y CONFIG_MMC_SH_MMCIF=y +CONFIG_RTC_CLASS=y +CONFIG_RTC_DRV_S35390A=y CONFIG_DMADEVICES=y CONFIG_SH_DMAE=y CONFIG_UIO=y
diff --git a/arch/arm/mach-shmobile/board-armadillo800eva.c b/arch/arm/mach-shmobile/board-armadillo800eva.c
index cf10f92..81dfb88 100644
--- a/arch/arm/mach-shmobile/board-armadillo800eva.c
+++ b/arch/arm/mach-shmobile/board-armadillo800eva.c@@ -37,6 +37,7 @@ #include <linux/mmc/host.h> #include <linux/mmc/sh_mmcif.h> #include <linux/mmc/sh_mobile_sdhi.h> +#include <linux/i2c-gpio.h> #include <mach/common.h> #include <mach/irqs.h> #include <mach/r8a7740.h>
@@ -876,6 +877,21 @@ static struct platform_device fsi_hdmi_device = { }, }; +/* RTC: RTC connects i2c-gpio. */ +static struct i2c_gpio_platform_data i2c_gpio_data = { + .sda_pin = GPIO_PORT208, + .scl_pin = GPIO_PORT91, + .udelay = 5, /* 100 kHz */ +}; + +static struct platform_device i2c_gpio_device = { + .name = "i2c-gpio", + .id = 2, + .dev = { + .platform_data = &i2c_gpio_data, + }, +}; + /* I2C */ static struct i2c_board_info i2c0_devices[] = { {
@@ -887,6 +903,13 @@ static struct i2c_board_info i2c0_devices[] = { }, }; +static struct i2c_board_info i2c2_devices[] = { + { + I2C_BOARD_INFO("s35390a", 0x30), + .type = "s35390a", + }, +}; + /* * board devices */
@@ -903,6 +926,7 @@ static struct platform_device *eva_devices[] __initdata = { &fsi_device, &fsi_hdmi_device, &fsi_wm8978_device, + &i2c_gpio_device, }; static void __init eva_clock_init(void)
@@ -1173,6 +1197,7 @@ static void __init eva_init(void) #endif i2c_register_board_info(0, i2c0_devices, ARRAY_SIZE(i2c0_devices)); + i2c_register_board_info(2, i2c2_devices, ARRAY_SIZE(i2c2_devices)); r8a7740_add_standard_devices();
--
1.7.10.4