arch/arm/mach-mx5/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/fsl_devices.h>
  22 #include <linux/i2c/tsc2007.h>
  23 #include <linux/leds.h>
  24
  25 #include <mach/common.h>
  26 #include <mach/hardware.h>
  27 #include <mach/imx-uart.h>
  28 #include <mach/iomux-mx51.h>
  29
  30 #include <asm/mach/arch.h>
  31
  32 #include "devices-imx51.h"
  33 #include "devices.h"
  34
  35 #define MBIMX51_TSC2007_GPIO    IMX_GPIO_NR(3, 30)
  36 #define MBIMX51_TSC2007_IRQ     (MXC_INTERNAL_IRQS + MBIMX51_TSC2007_GPIO)
  37 #define MBIMX51_LED0            IMX_GPIO_NR(3, 5)
  38 #define MBIMX51_LED1            IMX_GPIO_NR(3, 6)
  39 #define MBIMX51_LED2            IMX_GPIO_NR(3, 7)
  40 #define MBIMX51_LED3            IMX_GPIO_NR(3, 8)
  41
  42 static struct gpio_led mbimx51_leds[] = {
  43         {
  44                 .name                   = "led0",
  45                 .default_trigger        = "heartbeat",
  46                 .active_low             = 1,
  47                 .gpio                   = MBIMX51_LED0,
  48         },
  49         {
  50                 .name                   = "led1",
  51                 .default_trigger        = "nand-disk",
  52                 .active_low             = 1,
  53                 .gpio                   = MBIMX51_LED1,
  54         },
  55         {
  56                 .name                   = "led2",
  57                 .default_trigger        = "mmc0",
  58                 .active_low             = 1,
  59                 .gpio                   = MBIMX51_LED2,
  60         },
  61         {
  62                 .name                   = "led3",
  63                 .default_trigger        = "default-on",
  64                 .active_low             = 1,
  65                 .gpio                   = MBIMX51_LED3,
  66         },
  67 };
  68
  69 static struct gpio_led_platform_data mbimx51_leds_info = {
  70         .leds           = mbimx51_leds,
  71         .num_leds       = ARRAY_SIZE(mbimx51_leds),
  72 };
  73
  74 static struct platform_device mbimx51_leds_gpio = {
  75         .name   = "leds-gpio",
  76         .id     = -1,
  77         .dev    = {
  78                 .platform_data  = &mbimx51_leds_info,
  79         },
  80 };
  81
  82 static struct platform_device *devices[] __initdata = {
  83         &mbimx51_leds_gpio,
  84 };
  85
  86 static iomux_v3_cfg_t mbimx51_pads[] = {
  87         /* UART2 */
  88         MX51_PAD_UART2_RXD__UART2_RXD,
  89         MX51_PAD_UART2_TXD__UART2_TXD,
  90
  91         /* UART3 */
  92         MX51_PAD_UART3_RXD__UART3_RXD,
  93         MX51_PAD_UART3_TXD__UART3_TXD,
  94         MX51_PAD_KEY_COL4__UART3_RTS,
  95         MX51_PAD_KEY_COL5__UART3_CTS,
  96
  97         /* TSC2007 IRQ */
  98         MX51_PAD_NANDF_D10__GPIO3_30,
  99
 100         /* LEDS */
 101         MX51_PAD_DISPB2_SER_DIN__GPIO3_5,
 102         MX51_PAD_DISPB2_SER_DIO__GPIO3_6,
 103         MX51_PAD_DISPB2_SER_CLK__GPIO3_7,
 104         MX51_PAD_DISPB2_SER_RS__GPIO3_8,
 105
 106         /* KPP */
 107         MX51_PAD_KEY_ROW0__KEY_ROW0,
 108         MX51_PAD_KEY_ROW1__KEY_ROW1,
 109         MX51_PAD_KEY_ROW2__KEY_ROW2,
 110         MX51_PAD_KEY_ROW3__KEY_ROW3,
 111         MX51_PAD_KEY_COL0__KEY_COL0,
 112         MX51_PAD_KEY_COL1__KEY_COL1,
 113         MX51_PAD_KEY_COL2__KEY_COL2,
 114         MX51_PAD_KEY_COL3__KEY_COL3,
 115
 116         /* SD 1 */
 117         MX51_PAD_SD1_CMD__SD1_CMD,
 118         MX51_PAD_SD1_CLK__SD1_CLK,
 119         MX51_PAD_SD1_DATA0__SD1_DATA0,
 120         MX51_PAD_SD1_DATA1__SD1_DATA1,
 121         MX51_PAD_SD1_DATA2__SD1_DATA2,
 122         MX51_PAD_SD1_DATA3__SD1_DATA3,
 123
 124         /* SD 2 */
 125         MX51_PAD_SD2_CMD__SD2_CMD,
 126         MX51_PAD_SD2_CLK__SD2_CLK,
 127         MX51_PAD_SD2_DATA0__SD2_DATA0,
 128         MX51_PAD_SD2_DATA1__SD2_DATA1,
 129         MX51_PAD_SD2_DATA2__SD2_DATA2,
 130         MX51_PAD_SD2_DATA3__SD2_DATA3,
 131 };
 132
 133 static const struct imxuart_platform_data uart_pdata __initconst = {
 134         .flags = IMXUART_HAVE_RTSCTS,
 135 };
 136
 137 static int mbimx51_keymap[] = {
 138         KEY(0, 0, KEY_1),
 139         KEY(0, 1, KEY_2),
 140         KEY(0, 2, KEY_3),
 141         KEY(0, 3, KEY_UP),
 142
 143         KEY(1, 0, KEY_4),
 144         KEY(1, 1, KEY_5),
 145         KEY(1, 2, KEY_6),
 146         KEY(1, 3, KEY_LEFT),
 147
 148         KEY(2, 0, KEY_7),
 149         KEY(2, 1, KEY_8),
 150         KEY(2, 2, KEY_9),
 151         KEY(2, 3, KEY_RIGHT),
 152
 153         KEY(3, 0, KEY_0),
 154         KEY(3, 1, KEY_DOWN),
 155         KEY(3, 2, KEY_ESC),
 156         KEY(3, 3, KEY_ENTER),
 157 };
 158
 159 static const struct matrix_keymap_data mbimx51_map_data __initconst = {
 160         .keymap         = mbimx51_keymap,
 161         .keymap_size    = ARRAY_SIZE(mbimx51_keymap),
 162 };
 163
 164 static int tsc2007_get_pendown_state(void)
 165 {
 166         return !gpio_get_value(MBIMX51_TSC2007_GPIO);
 167 }
 168
 169 struct tsc2007_platform_data tsc2007_data = {
 170         .model = 2007,
 171         .x_plate_ohms = 180,
 172         .get_pendown_state = tsc2007_get_pendown_state,
 173 };
 174
 175 static struct i2c_board_info mbimx51_i2c_devices[] = {
 176         {
 177                 I2C_BOARD_INFO("tsc2007", 0x49),
 178                 .irq  = MBIMX51_TSC2007_IRQ,
 179                 .platform_data = &tsc2007_data,
 180         }, {
 181                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
 182         },
 183 };
 184
 185 /*
 186  * baseboard initialization.
 187  */
 188 void __init eukrea_mbimx51_baseboard_init(void)
 189 {
 190         mxc_iomux_v3_setup_multiple_pads(mbimx51_pads,
 191                                         ARRAY_SIZE(mbimx51_pads));
 192
 193         imx51_add_imx_uart(1, NULL);
 194         imx51_add_imx_uart(2, &uart_pdata);
 195
 196         gpio_request(MBIMX51_LED0, "LED0");
 197         gpio_direction_output(MBIMX51_LED0, 1);
 198         gpio_free(MBIMX51_LED0);
 199         gpio_request(MBIMX51_LED1, "LED1");
 200         gpio_direction_output(MBIMX51_LED1, 1);
 201         gpio_free(MBIMX51_LED1);
 202         gpio_request(MBIMX51_LED2, "LED2");
 203         gpio_direction_output(MBIMX51_LED2, 1);
 204         gpio_free(MBIMX51_LED2);
 205         gpio_request(MBIMX51_LED3, "LED3");
 206         gpio_direction_output(MBIMX51_LED3, 1);
 207         gpio_free(MBIMX51_LED3);
 208
 209         platform_add_devices(devices, ARRAY_SIZE(devices));
 210
 211         imx51_add_imx_keypad(&mbimx51_map_data);
 212
 213         gpio_request(MBIMX51_TSC2007_GPIO, "tsc2007_irq");
 214         gpio_direction_input(MBIMX51_TSC2007_GPIO);
 215         set_irq_type(MBIMX51_TSC2007_IRQ, IRQF_TRIGGER_FALLING);
 216         i2c_register_board_info(1, mbimx51_i2c_devices,
 217                                 ARRAY_SIZE(mbimx51_i2c_devices));
 218
 219         imx51_add_sdhci_esdhc_imx(0, NULL);
 220         imx51_add_sdhci_esdhc_imx(1, NULL);
 221 }