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/*
*
* Copyright (C) 2010 Eric Bénard <eric@eukrea.com>
*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/serial_8250.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <linux/io.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/fsl_devices.h>
#include <linux/i2c/tsc2007.h>
#include <linux/leds.h>
#include <linux/input/matrix_keypad.h>
#include <mach/common.h>
#include <mach/hardware.h>
#include <mach/imx-uart.h>
#include <mach/iomux-mx51.h>
#include <asm/mach/arch.h>
#include "devices.h"
#define MBIMX51_TSC2007_GPIO (2*32 + 30)
#define MBIMX51_TSC2007_IRQ (MXC_INTERNAL_IRQS + MBIMX51_TSC2007_GPIO)
#define MBIMX51_LED0 (2*32 + 5)
#define MBIMX51_LED1 (2*32 + 6)
#define MBIMX51_LED2 (2*32 + 7)
#define MBIMX51_LED3 (2*32 + 8)
static struct gpio_led mbimx51_leds[] = {
{
.name = "led0",
.default_trigger = "heartbeat",
.active_low = 1,
.gpio = MBIMX51_LED0,
},
{
.name = "led1",
.default_trigger = "nand-disk",
.active_low = 1,
.gpio = MBIMX51_LED1,
},
{
.name = "led2",
.default_trigger = "mmc0",
.active_low = 1,
.gpio = MBIMX51_LED2,
},
{
.name = "led3",
.default_trigger = "default-on",
.active_low = 1,
.gpio = MBIMX51_LED3,
},
};
static struct gpio_led_platform_data mbimx51_leds_info = {
.leds = mbimx51_leds,
.num_leds = ARRAY_SIZE(mbimx51_leds),
};
static struct platform_device mbimx51_leds_gpio = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &mbimx51_leds_info,
},
};
static struct platform_device *devices[] __initdata = {
&mbimx51_leds_gpio,
};
static struct pad_desc mbimx51_pads[] = {
/* UART2 */
MX51_PAD_UART2_RXD__UART2_RXD,
MX51_PAD_UART2_TXD__UART2_TXD,
/* UART3 */
MX51_PAD_UART3_RXD__UART3_RXD,
MX51_PAD_UART3_TXD__UART3_TXD,
MX51_PAD_KEY_COL4__UART3_RTS,
MX51_PAD_KEY_COL5__UART3_CTS,
/* TSC2007 IRQ */
MX51_PAD_NANDF_D10__GPIO_3_30,
/* LEDS */
MX51_PAD_DISPB2_SER_DIN__GPIO_3_5,
MX51_PAD_DISPB2_SER_DIO__GPIO_3_6,
MX51_PAD_DISPB2_SER_CLK__GPIO_3_7,
MX51_PAD_DISPB2_SER_RS__GPIO_3_8,
/* KPP */
MX51_PAD_KEY_ROW0__KEY_ROW0,
MX51_PAD_KEY_ROW1__KEY_ROW1,
MX51_PAD_KEY_ROW2__KEY_ROW2,
MX51_PAD_KEY_ROW3__KEY_ROW3,
MX51_PAD_KEY_COL0__KEY_COL0,
MX51_PAD_KEY_COL1__KEY_COL1,
MX51_PAD_KEY_COL2__KEY_COL2,
MX51_PAD_KEY_COL3__KEY_COL3,
};
static struct imxuart_platform_data uart_pdata = {
.flags = IMXUART_HAVE_RTSCTS,
};
static int mbimx51_keymap[] = {
KEY(0, 0, KEY_1),
KEY(0, 1, KEY_2),
KEY(0, 2, KEY_3),
KEY(0, 3, KEY_UP),
KEY(1, 0, KEY_4),
KEY(1, 1, KEY_5),
KEY(1, 2, KEY_6),
KEY(1, 3, KEY_LEFT),
KEY(2, 0, KEY_7),
KEY(2, 1, KEY_8),
KEY(2, 2, KEY_9),
KEY(2, 3, KEY_RIGHT),
KEY(3, 0, KEY_0),
KEY(3, 1, KEY_DOWN),
KEY(3, 2, KEY_ESC),
KEY(3, 3, KEY_ENTER),
};
static struct matrix_keymap_data mbimx51_map_data = {
.keymap = mbimx51_keymap,
.keymap_size = ARRAY_SIZE(mbimx51_keymap),
};
static int tsc2007_get_pendown_state(void)
{
return !gpio_get_value(MBIMX51_TSC2007_GPIO);
}
struct tsc2007_platform_data tsc2007_data = {
.model = 2007,
.x_plate_ohms = 180,
.get_pendown_state = tsc2007_get_pendown_state,
};
static struct i2c_board_info mbimx51_i2c_devices[] = {
{
I2C_BOARD_INFO("tsc2007", 0x48),
.irq = MBIMX51_TSC2007_IRQ,
.platform_data = &tsc2007_data,
},
};
/*
* baseboard initialization.
*/
void __init eukrea_mbimx51_baseboard_init(void)
{
mxc_iomux_v3_setup_multiple_pads(mbimx51_pads,
ARRAY_SIZE(mbimx51_pads));
mxc_register_device(&mxc_uart_device1, NULL);
mxc_register_device(&mxc_uart_device2, &uart_pdata);
gpio_request(MBIMX51_LED0, "LED0");
gpio_direction_output(MBIMX51_LED0, 1);
gpio_free(MBIMX51_LED0);
gpio_request(MBIMX51_LED1, "LED1");
gpio_direction_output(MBIMX51_LED1, 1);
gpio_free(MBIMX51_LED1);
gpio_request(MBIMX51_LED2, "LED2");
gpio_direction_output(MBIMX51_LED2, 1);
gpio_free(MBIMX51_LED2);
gpio_request(MBIMX51_LED3, "LED3");
gpio_direction_output(MBIMX51_LED3, 1);
gpio_free(MBIMX51_LED3);
platform_add_devices(devices, ARRAY_SIZE(devices));
mxc_register_device(&mxc_keypad_device, &mbimx51_map_data);
gpio_request(MBIMX51_TSC2007_GPIO, "tsc2007_irq");
gpio_direction_input(MBIMX51_TSC2007_GPIO);
set_irq_type(MBIMX51_TSC2007_IRQ, IRQF_TRIGGER_FALLING);
i2c_register_board_info(1, mbimx51_i2c_devices,
ARRAY_SIZE(mbimx51_i2c_devices));
}
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