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author | Sascha Hauer <s.hauer@pengutronix.de> | 2009-01-28 17:10:32 +0100 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2009-03-13 10:34:15 +0100 |
commit | 792067507b8bf5eaf220ee6994423381b7ae5c0b (patch) | |
tree | 7b3197f8b6438855d2e18a773c9f5215947c3dcb | |
parent | [ARM] iommux mx3: Add pin definitions for I2C (diff) | |
download | linux-792067507b8bf5eaf220ee6994423381b7ae5c0b.tar.xz linux-792067507b8bf5eaf220ee6994423381b7ae5c0b.zip |
[ARM] PCM037 Board: Add I2C support
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to '')
-rw-r--r-- | arch/arm/mach-mx3/pcm037.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/arm/mach-mx3/pcm037.c b/arch/arm/mach-mx3/pcm037.c index 18cda92432b8..a05e37b731be 100644 --- a/arch/arm/mach-mx3/pcm037.c +++ b/arch/arm/mach-mx3/pcm037.c @@ -26,6 +26,8 @@ #include <linux/gpio.h> #include <linux/smc911x.h> #include <linux/interrupt.h> +#include <linux/i2c.h> +#include <linux/i2c/at24.h> #include <mach/hardware.h> #include <asm/mach-types.h> @@ -37,6 +39,9 @@ #include <mach/iomux-mx3.h> #include <mach/board-pcm037.h> #include <mach/mxc_nand.h> +#ifdef CONFIG_I2C_IMX +#include <mach/i2c.h> +#endif #include "devices.h" @@ -117,6 +122,46 @@ static struct mxc_nand_platform_data pcm037_nand_board_info = { .hw_ecc = 1, }; +#ifdef CONFIG_I2C_IMX +static int i2c_1_pins[] = { + MX31_PIN_CSPI2_MOSI__SCL, + MX31_PIN_CSPI2_MISO__SDA, +}; + +static int pcm037_i2c_1_init(struct device *dev) +{ + return mxc_iomux_setup_multiple_pins(i2c_1_pins, ARRAY_SIZE(i2c_1_pins), + "i2c-1"); +} + +static void pcm037_i2c_1_exit(struct device *dev) +{ + mxc_iomux_release_multiple_pins(i2c_1_pins, ARRAY_SIZE(i2c_1_pins)); +} + +static struct imxi2c_platform_data pcm037_i2c_1_data = { + .bitrate = 100000, + .init = pcm037_i2c_1_init, + .exit = pcm037_i2c_1_exit, +}; + +static struct at24_platform_data board_eeprom = { + .byte_len = 4096, + .page_size = 32, + .flags = AT24_FLAG_ADDR16, +}; + +static struct i2c_board_info pcm037_i2c_devices[] = { + { + I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */ + .platform_data = &board_eeprom, + }, { + I2C_BOARD_INFO("rtc-pcf8563", 0x51), + .type = "pcf8563", + } +}; +#endif + static struct platform_device *devices[] __initdata = { &pcm037_flash, &pcm037_eth, @@ -156,6 +201,12 @@ static void __init mxc_board_init(void) "pcm037-eth")) gpio_direction_input(MX31_PIN_GPIO3_1); +#ifdef CONFIG_I2C_IMX + i2c_register_board_info(1, pcm037_i2c_devices, + ARRAY_SIZE(pcm037_i2c_devices)); + + mxc_register_device(&mxc_i2c_device1, &pcm037_i2c_1_data); +#endif mxc_register_device(&mxc_nand_device, &pcm037_nand_board_info); } |