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Subject[PATCH v3 12/12] davinci: add tnetv107x evm i2c eeprom device
Date
The tnetv107x evm board has an I2C device connected on one of the SSP ports.
This patch adds board definitions for a GPIO based I2C master, as well as
definitions for the eeprom device on these boards.

Signed-off-by: Cyril Chemparathy <cyril@ti.com>
---
arch/arm/mach-davinci/board-tnetv107x-evm.c | 30 +++++++++++++++++++++++++++
1 files changed, 30 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-davinci/board-tnetv107x-evm.c b/arch/arm/mach-davinci/board-tnetv107x-evm.c
index ca61f8a..8b94a63 100644
--- a/arch/arm/mach-davinci/board-tnetv107x-evm.c
+++ b/arch/arm/mach-davinci/board-tnetv107x-evm.c
@@ -29,6 +29,9 @@
#include <linux/regulator/machine.h>
#include <linux/regulator/consumer.h>
#include <linux/regulator/driver.h>
+#include <linux/i2c.h>
+#include <linux/i2c/at24.h>
+#include <linux/i2c-gpio.h>

#include <asm/mach/arch.h>
#include <asm/mach-types.h>
@@ -45,6 +48,8 @@
#define EVM_MMC_WP_GPIO 21
#define EVM_MMC_CD_GPIO 24
#define EVM_SPI_CS_GPIO 54
+#define EVM_I2C_SDA_GPIO (SSP_GPIO_START + 0)
+#define EVM_I2C_SCL_GPIO (SSP_GPIO_START + 1)
#define EVM_BACKLIGHT_GPIO (SSP_GPIO_START + 2)

static int initialize_gpio(int gpio, char *desc)
@@ -367,6 +372,29 @@ static struct platform_device backlight_device = {
.dev.platform_data = (void *)EVM_BACKLIGHT_GPIO,
};

+struct i2c_gpio_platform_data i2c_data = {
+ .sda_pin = EVM_I2C_SDA_GPIO,
+ .scl_pin = EVM_I2C_SCL_GPIO,
+};
+
+static struct platform_device i2c_device = {
+ .name = "i2c-gpio",
+ .id = 0,
+ .dev.platform_data = &i2c_data,
+};
+
+static struct at24_platform_data at24_config = {
+ .byte_len = SZ_16K / 8,
+ .page_size = 16,
+};
+
+static struct i2c_board_info i2c_info[] __initconst = {
+ {
+ I2C_BOARD_INFO("24c16", 0x50),
+ .platform_data = &at24_config,
+ },
+};
+
static __init void tnetv107x_evm_board_init(void)
{
davinci_cfg_reg_list(sdio1_pins);
@@ -376,8 +404,10 @@ static __init void tnetv107x_evm_board_init(void)
tnetv107x_devices_init(&evm_device_info);

platform_device_register(&backlight_device);
+ platform_device_register(&i2c_device);

spi_register_board_info(spi_info, ARRAY_SIZE(spi_info));
+ i2c_register_board_info(0, i2c_info, ARRAY_SIZE(i2c_info));
}

#ifdef CONFIG_SERIAL_8250_CONSOLE
--
1.7.0.4


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