[ARM] PCM037 Board: Add I2C support (79206750) · Commits · e / devices / android_kernel_fairphone_FP5

arch/arm/mach-mx3/pcm037.c

+51 −0

Original line number	Diff line number	Diff line
		@@ -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);
		}