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Commit 2f81b4d9 authored by Fabio Estevam's avatar Fabio Estevam Committed by Sascha Hauer
Browse files

ARM: mx53_loco: Add support for the accelerometer 



mx53_loco has a MMA8450 accelerometer connected to i2c0.

Add support for it.

Signed-off-by: default avatarFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
parent 97f45313

arch/arm/mach-mx5/board-mx53_loco.c

+20 −0
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ 
#include <linux/clk.h>

#include <linux/delay.h>

#include <linux/gpio.h>

#include <linux/i2c.h>



#include <mach/common.h>

#include <mach/hardware.h>
@@ -42,6 +43,7 @@ 
#define LOCO_SD3_CD			IMX_GPIO_NR(3, 11)

#define LOCO_SD3_WP			IMX_GPIO_NR(3, 12)

#define LOCO_SD1_CD			IMX_GPIO_NR(3, 13)

#define LOCO_ACCEL_EN			IMX_GPIO_NR(6, 14)



static iomux_v3_cfg_t mx53_loco_pads[] = {

	/* FEC */
@@ -64,6 +66,10 @@ static iomux_v3_cfg_t mx53_loco_pads[] = { 
	MX53_PAD_KEY_ROW0__AUDMUX_AUD5_TXD,

	MX53_PAD_KEY_COL1__AUDMUX_AUD5_TXFS,

	MX53_PAD_KEY_ROW1__AUDMUX_AUD5_RXD,

	/* I2C1 */

	MX53_PAD_CSI0_DAT8__I2C1_SDA,

	MX53_PAD_CSI0_DAT9__I2C1_SCL,

	MX53_PAD_NANDF_CS1__GPIO6_14,	/* Accelerometer Enable */

	/* I2C2 */

	MX53_PAD_KEY_COL3__I2C2_SCL,

	MX53_PAD_KEY_ROW3__I2C2_SDA,
@@ -257,8 +263,15 @@ static const struct gpio_led_platform_data mx53loco_leds_data __initconst = { 
	.num_leds	= ARRAY_SIZE(mx53loco_leds),

};



static struct i2c_board_info mx53loco_i2c_devices[] = {

	{

		I2C_BOARD_INFO("mma8450", 0x1C),

	},

};



static void __init mx53_loco_board_init(void)

{

	int ret;

	imx53_soc_init();



	mxc_iomux_v3_setup_multiple_pads(mx53_loco_pads,
@@ -267,6 +280,13 @@ static void __init mx53_loco_board_init(void) 
	mx53_loco_fec_reset();

	imx53_add_fec(&mx53_loco_fec_data);

	imx53_add_imx2_wdt(0, NULL);



	ret = gpio_request_one(LOCO_ACCEL_EN, GPIOF_OUT_INIT_HIGH, "accel_en");

	if (ret)

		pr_err("Cannot request ACCEL_EN pin: %d\n", ret);



	i2c_register_board_info(0, mx53loco_i2c_devices,

				ARRAY_SIZE(mx53loco_i2c_devices));

	imx53_add_imx_i2c(0, &mx53_loco_i2c_data);

	imx53_add_imx_i2c(1, &mx53_loco_i2c_data);

	imx53_add_sdhci_esdhc_imx(0, &mx53_loco_sd1_data);