arch/arm/mach-imx/eukrea_mbimx51-baseboard.c

   1 /*
   2  *
   3  * Copyright (C) 2010 Eric Bénard <eric@eukrea.com>
   4  *
   5  * The code contained herein is licensed under the GNU General Public
   6  * License. You may obtain a copy of the GNU General Public License
   7  * Version 2 or later at the following locations:
   8  *
   9  * http://www.opensource.org/licenses/gpl-license.html
  10  * http://www.gnu.org/copyleft/gpl.html
  11  */
  12
  13 #include <linux/init.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/serial_8250.h>
  16 #include <linux/i2c.h>
  17 #include <linux/gpio.h>
  18 #include <linux/io.h>
  19 #include <linux/interrupt.h>
  20 #include <linux/irq.h>
  21 #include <linux/i2c/tsc2007.h>
  22 #include <linux/leds.h>
  23
  24 #include <mach/common.h>
  25 #include <mach/hardware.h>
  26 #include <mach/iomux-mx51.h>
  27
  28 #include <asm/mach/arch.h>
  29
  30 #include "devices-imx51.h"
  31
  32 #define MBIMX51_TSC2007_GPIO    IMX_GPIO_NR(3, 30)
  33 #define MBIMX51_LED0            IMX_GPIO_NR(3, 5)
  34 #define MBIMX51_LED1            IMX_GPIO_NR(3, 6)
  35 #define MBIMX51_LED2            IMX_GPIO_NR(3, 7)
  36 #define MBIMX51_LED3            IMX_GPIO_NR(3, 8)
  37
  38 static const struct gpio_led mbimx51_leds[] __initconst = {
  39         {
  40                 .name                   = "led0",
  41                 .default_trigger        = "heartbeat",
  42                 .active_low             = 1,
  43                 .gpio                   = MBIMX51_LED0,
  44         },
  45         {
  46                 .name                   = "led1",
  47                 .default_trigger        = "nand-disk",
  48                 .active_low             = 1,
  49                 .gpio                   = MBIMX51_LED1,
  50         },
  51         {
  52                 .name                   = "led2",
  53                 .default_trigger        = "mmc0",
  54                 .active_low             = 1,
  55                 .gpio                   = MBIMX51_LED2,
  56         },
  57         {
  58                 .name                   = "led3",
  59                 .default_trigger        = "default-on",
  60                 .active_low             = 1,
  61                 .gpio                   = MBIMX51_LED3,
  62         },
  63 };
  64
  65 static const struct gpio_led_platform_data mbimx51_leds_info __initconst = {
  66         .leds           = mbimx51_leds,
  67         .num_leds       = ARRAY_SIZE(mbimx51_leds),
  68 };
  69
  70 static iomux_v3_cfg_t mbimx51_pads[] = {
  71         /* UART2 */
  72         MX51_PAD_UART2_RXD__UART2_RXD,
  73         MX51_PAD_UART2_TXD__UART2_TXD,
  74
  75         /* UART3 */
  76         MX51_PAD_UART3_RXD__UART3_RXD,
  77         MX51_PAD_UART3_TXD__UART3_TXD,
  78         MX51_PAD_KEY_COL4__UART3_RTS,
  79         MX51_PAD_KEY_COL5__UART3_CTS,
  80
  81         /* TSC2007 IRQ */
  82         MX51_PAD_NANDF_D10__GPIO3_30,
  83
  84         /* LEDS */
  85         MX51_PAD_DISPB2_SER_DIN__GPIO3_5,
  86         MX51_PAD_DISPB2_SER_DIO__GPIO3_6,
  87         MX51_PAD_DISPB2_SER_CLK__GPIO3_7,
  88         MX51_PAD_DISPB2_SER_RS__GPIO3_8,
  89
  90         /* KPP */
  91         MX51_PAD_KEY_ROW0__KEY_ROW0,
  92         MX51_PAD_KEY_ROW1__KEY_ROW1,
  93         MX51_PAD_KEY_ROW2__KEY_ROW2,
  94         MX51_PAD_KEY_ROW3__KEY_ROW3,
  95         MX51_PAD_KEY_COL0__KEY_COL0,
  96         MX51_PAD_KEY_COL1__KEY_COL1,
  97         MX51_PAD_KEY_COL2__KEY_COL2,
  98         MX51_PAD_KEY_COL3__KEY_COL3,
  99
 100         /* SD 1 */
 101         MX51_PAD_SD1_CMD__SD1_CMD,
 102         MX51_PAD_SD1_CLK__SD1_CLK,
 103         MX51_PAD_SD1_DATA0__SD1_DATA0,
 104         MX51_PAD_SD1_DATA1__SD1_DATA1,
 105         MX51_PAD_SD1_DATA2__SD1_DATA2,
 106         MX51_PAD_SD1_DATA3__SD1_DATA3,
 107
 108         /* SD 2 */
 109         MX51_PAD_SD2_CMD__SD2_CMD,
 110         MX51_PAD_SD2_CLK__SD2_CLK,
 111         MX51_PAD_SD2_DATA0__SD2_DATA0,
 112         MX51_PAD_SD2_DATA1__SD2_DATA1,
 113         MX51_PAD_SD2_DATA2__SD2_DATA2,
 114         MX51_PAD_SD2_DATA3__SD2_DATA3,
 115 };
 116
 117 static const struct imxuart_platform_data uart_pdata __initconst = {
 118         .flags = IMXUART_HAVE_RTSCTS,
 119 };
 120
 121 static int mbimx51_keymap[] = {
 122         KEY(0, 0, KEY_1),
 123         KEY(0, 1, KEY_2),
 124         KEY(0, 2, KEY_3),
 125         KEY(0, 3, KEY_UP),
 126
 127         KEY(1, 0, KEY_4),
 128         KEY(1, 1, KEY_5),
 129         KEY(1, 2, KEY_6),
 130         KEY(1, 3, KEY_LEFT),
 131
 132         KEY(2, 0, KEY_7),
 133         KEY(2, 1, KEY_8),
 134         KEY(2, 2, KEY_9),
 135         KEY(2, 3, KEY_RIGHT),
 136
 137         KEY(3, 0, KEY_0),
 138         KEY(3, 1, KEY_DOWN),
 139         KEY(3, 2, KEY_ESC),
 140         KEY(3, 3, KEY_ENTER),
 141 };
 142
 143 static const struct matrix_keymap_data mbimx51_map_data __initconst = {
 144         .keymap         = mbimx51_keymap,
 145         .keymap_size    = ARRAY_SIZE(mbimx51_keymap),
 146 };
 147
 148 static int tsc2007_get_pendown_state(void)
 149 {
 150         return !gpio_get_value(MBIMX51_TSC2007_GPIO);
 151 }
 152
 153 struct tsc2007_platform_data tsc2007_data = {
 154         .model = 2007,
 155         .x_plate_ohms = 180,
 156         .get_pendown_state = tsc2007_get_pendown_state,
 157 };
 158
 159 static struct i2c_board_info mbimx51_i2c_devices[] = {
 160         {
 161                 I2C_BOARD_INFO("tsc2007", 0x49),
 162                 .irq  = IMX_GPIO_TO_IRQ(MBIMX51_TSC2007_GPIO),
 163                 .platform_data = &tsc2007_data,
 164         }, {
 165                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
 166         },
 167 };
 168
 169 /*
 170  * baseboard initialization.
 171  */
 172 void __init eukrea_mbimx51_baseboard_init(void)
 173 {
 174         mxc_iomux_v3_setup_multiple_pads(mbimx51_pads,
 175                                         ARRAY_SIZE(mbimx51_pads));
 176
 177         imx51_add_imx_uart(1, NULL);
 178         imx51_add_imx_uart(2, &uart_pdata);
 179
 180         gpio_request(MBIMX51_LED0, "LED0");
 181         gpio_direction_output(MBIMX51_LED0, 1);
 182         gpio_free(MBIMX51_LED0);
 183         gpio_request(MBIMX51_LED1, "LED1");
 184         gpio_direction_output(MBIMX51_LED1, 1);
 185         gpio_free(MBIMX51_LED1);
 186         gpio_request(MBIMX51_LED2, "LED2");
 187         gpio_direction_output(MBIMX51_LED2, 1);
 188         gpio_free(MBIMX51_LED2);
 189         gpio_request(MBIMX51_LED3, "LED3");
 190         gpio_direction_output(MBIMX51_LED3, 1);
 191         gpio_free(MBIMX51_LED3);
 192
 193         gpio_led_register_device(-1, &mbimx51_leds_info);
 194
 195         imx51_add_imx_keypad(&mbimx51_map_data);
 196
 197         gpio_request(MBIMX51_TSC2007_GPIO, "tsc2007_irq");
 198         gpio_direction_input(MBIMX51_TSC2007_GPIO);
 199         irq_set_irq_type(gpio_to_irq(MBIMX51_TSC2007_GPIO),
 200                                         IRQF_TRIGGER_FALLING);
 201         i2c_register_board_info(1, mbimx51_i2c_devices,
 202                                 ARRAY_SIZE(mbimx51_i2c_devices));
 203
 204         imx51_add_sdhci_esdhc_imx(0, NULL);
 205         imx51_add_sdhci_esdhc_imx(1, NULL);
 206 }