arch/arm/mach-mx5/eukrea_mbimxsd-baseboard.c

   1 /*
   2  * Copyright (C) 2010 Eric Benard - eric@eukrea.com
   3  *
   4  * Based on pcm970-baseboard.c which is :
   5  * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; either version 2
  10  * of the License, or (at your option) any later version.
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  19  * MA 02110-1301, USA.
  20  */
  21
  22 #include <linux/types.h>
  23 #include <linux/init.h>
  24
  25 #include <linux/gpio.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/irq.h>
  28 #include <linux/leds.h>
  29 #include <linux/platform_device.h>
  30 #include <linux/gpio_keys.h>
  31 #include <linux/input.h>
  32 #include <linux/i2c.h>
  33
  34 #include <asm/mach-types.h>
  35 #include <asm/mach/arch.h>
  36 #include <asm/mach/time.h>
  37 #include <asm/mach/map.h>
  38
  39 #include <mach/hardware.h>
  40 #include <mach/common.h>
  41 #include <mach/imx-uart.h>
  42 #include <mach/iomux-mx51.h>
  43 #include <mach/audmux.h>
  44
  45 #include "devices-imx51.h"
  46 #include "devices.h"
  47
  48 #define MBIMXSD_GPIO_3_31 IOMUX_PAD(0x554, 0x16C, 3, 0x0, 0, \
  49                                 MX51_PAD_CTRL_1 | PAD_CTL_PUS_22K_UP)
  50
  51 static iomux_v3_cfg_t eukrea_mbimxsd_pads[] = {
  52         /* LED */
  53         MX51_PAD_NANDF_D10__GPIO_3_30,
  54         /* SWITCH */
  55         MBIMXSD_GPIO_3_31,
  56         /* UART2 */
  57         MX51_PAD_UART2_RXD__UART2_RXD,
  58         MX51_PAD_UART2_TXD__UART2_TXD,
  59         /* UART 3 */
  60         MX51_PAD_UART3_RXD__UART3_RXD,
  61         MX51_PAD_UART3_TXD__UART3_TXD,
  62         MX51_PAD_KEY_COL4__UART3_RTS,
  63         MX51_PAD_KEY_COL5__UART3_CTS,
  64         /* SD */
  65         MX51_PAD_SD1_CMD__SD1_CMD,
  66         MX51_PAD_SD1_CLK__SD1_CLK,
  67         MX51_PAD_SD1_DATA0__SD1_DATA0,
  68         MX51_PAD_SD1_DATA1__SD1_DATA1,
  69         MX51_PAD_SD1_DATA2__SD1_DATA2,
  70         MX51_PAD_SD1_DATA3__SD1_DATA3,
  71 };
  72
  73 #define GPIO_LED1       (2 * 32 + 30)
  74 #define GPIO_SWITCH1    (2 * 32 + 31)
  75
  76 static struct gpio_led eukrea_mbimxsd_leds[] = {
  77         {
  78                 .name                   = "led1",
  79                 .default_trigger        = "heartbeat",
  80                 .active_low             = 1,
  81                 .gpio                   = GPIO_LED1,
  82         },
  83 };
  84
  85 static struct gpio_led_platform_data eukrea_mbimxsd_led_info = {
  86         .leds           = eukrea_mbimxsd_leds,
  87         .num_leds       = ARRAY_SIZE(eukrea_mbimxsd_leds),
  88 };
  89
  90 static struct platform_device eukrea_mbimxsd_leds_gpio = {
  91         .name   = "leds-gpio",
  92         .id     = -1,
  93         .dev    = {
  94                 .platform_data  = &eukrea_mbimxsd_led_info,
  95         },
  96 };
  97
  98 static struct gpio_keys_button eukrea_mbimxsd_gpio_buttons[] = {
  99         {
 100                 .gpio           = GPIO_SWITCH1,
 101                 .code           = BTN_0,
 102                 .desc           = "BP1",
 103                 .active_low     = 1,
 104                 .wakeup         = 1,
 105         },
 106 };
 107
 108 static struct gpio_keys_platform_data eukrea_mbimxsd_button_data = {
 109         .buttons        = eukrea_mbimxsd_gpio_buttons,
 110         .nbuttons       = ARRAY_SIZE(eukrea_mbimxsd_gpio_buttons),
 111 };
 112
 113 static struct platform_device eukrea_mbimxsd_button_device = {
 114         .name           = "gpio-keys",
 115         .id             = -1,
 116         .num_resources  = 0,
 117         .dev            = {
 118                 .platform_data  = &eukrea_mbimxsd_button_data,
 119         }
 120 };
 121
 122 static struct platform_device *platform_devices[] __initdata = {
 123         &eukrea_mbimxsd_leds_gpio,
 124         &eukrea_mbimxsd_button_device,
 125 };
 126
 127 static const struct imxuart_platform_data uart_pdata __initconst = {
 128         .flags = IMXUART_HAVE_RTSCTS,
 129 };
 130
 131 static struct i2c_board_info eukrea_mbimxsd_i2c_devices[] = {
 132         {
 133                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
 134         },
 135 };
 136
 137 /*
 138  * system init for baseboard usage. Will be called by cpuimx51sd init.
 139  *
 140  * Add platform devices present on this baseboard and init
 141  * them from CPU side as far as required to use them later on
 142  */
 143 void __init eukrea_mbimxsd51_baseboard_init(void)
 144 {
 145         if (mxc_iomux_v3_setup_multiple_pads(eukrea_mbimxsd_pads,
 146                         ARRAY_SIZE(eukrea_mbimxsd_pads)))
 147                 printk(KERN_ERR "error setting mbimxsd pads !\n");
 148
 149         imx51_add_imx_uart(1, NULL);
 150         imx51_add_imx_uart(2, &uart_pdata);
 151
 152         imx51_add_sdhci_esdhc_imx(0, NULL);
 153
 154         gpio_request(GPIO_LED1, "LED1");
 155         gpio_direction_output(GPIO_LED1, 1);
 156         gpio_free(GPIO_LED1);
 157
 158         gpio_request(GPIO_SWITCH1, "SWITCH1");
 159         gpio_direction_input(GPIO_SWITCH1);
 160         gpio_free(GPIO_SWITCH1);
 161
 162         i2c_register_board_info(0, eukrea_mbimxsd_i2c_devices,
 163                                 ARRAY_SIZE(eukrea_mbimxsd_i2c_devices));
 164
 165         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 166 }