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eukrea_mbimxsd25-baseboard.c

/*
 * Copyright (C) 2010 Eric Benard - eric@eukrea.com
 *
 * Based on pcm970-baseboard.c which is :
 * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 */

#include <linux/gpio.h>
#include <linux/leds.h>
#include <linux/platform_device.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <video/platform_lcd.h>

#include <mach/hardware.h>
#include <mach/iomux-mx25.h>
#include <mach/common.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/mx25.h>
#include <mach/imx-uart.h>
#include <mach/audmux.h>

#include "devices-imx25.h"

static iomux_v3_cfg_t eukrea_mbimxsd_pads[] = {
      /* LCD */
      MX25_PAD_LD0__LD0,
      MX25_PAD_LD1__LD1,
      MX25_PAD_LD2__LD2,
      MX25_PAD_LD3__LD3,
      MX25_PAD_LD4__LD4,
      MX25_PAD_LD5__LD5,
      MX25_PAD_LD6__LD6,
      MX25_PAD_LD7__LD7,
      MX25_PAD_LD8__LD8,
      MX25_PAD_LD9__LD9,
      MX25_PAD_LD10__LD10,
      MX25_PAD_LD11__LD11,
      MX25_PAD_LD12__LD12,
      MX25_PAD_LD13__LD13,
      MX25_PAD_LD14__LD14,
      MX25_PAD_LD15__LD15,
      MX25_PAD_GPIO_E__LD16,
      MX25_PAD_GPIO_F__LD17,
      MX25_PAD_HSYNC__HSYNC,
      MX25_PAD_VSYNC__VSYNC,
      MX25_PAD_LSCLK__LSCLK,
      MX25_PAD_OE_ACD__OE_ACD,
      MX25_PAD_CONTRAST__CONTRAST,
      /* LCD_PWR */
      MX25_PAD_PWM__GPIO_1_26,
      /* LED */
      MX25_PAD_POWER_FAIL__GPIO_3_19,
      /* SWITCH */
      MX25_PAD_VSTBY_ACK__GPIO_3_18,
      /* UART2 */
      MX25_PAD_UART2_RTS__UART2_RTS,
      MX25_PAD_UART2_CTS__UART2_CTS,
      MX25_PAD_UART2_TXD__UART2_TXD,
      MX25_PAD_UART2_RXD__UART2_RXD,
      /* SD1 */
      MX25_PAD_SD1_CMD__SD1_CMD,
      MX25_PAD_SD1_CLK__SD1_CLK,
      MX25_PAD_SD1_DATA0__SD1_DATA0,
      MX25_PAD_SD1_DATA1__SD1_DATA1,
      MX25_PAD_SD1_DATA2__SD1_DATA2,
      MX25_PAD_SD1_DATA3__SD1_DATA3,
      /* SD1 CD */
      MX25_PAD_DE_B__GPIO_2_20,
      /* I2S */
      MX25_PAD_KPP_COL3__AUD5_TXFS,
      MX25_PAD_KPP_COL2__AUD5_TXC,
      MX25_PAD_KPP_COL1__AUD5_RXD,
      MX25_PAD_KPP_COL0__AUD5_TXD,
      /* CAN */
      MX25_PAD_GPIO_D__CAN2_RX,
      MX25_PAD_GPIO_C__CAN2_TX,
};

#define GPIO_LED1 83
#define GPIO_SWITCH1    82
#define GPIO_SD1CD      52
#define GPIO_LCDPWR     26

static struct imx_fb_videomode eukrea_mximxsd_modes[] = {
      {
            .mode = {
                  .name       = "CMO-QVGA",
                  .refresh    = 60,
                  .xres       = 320,
                  .yres       = 240,
                  .pixclock   = KHZ2PICOS(6500),
                  .left_margin      = 30,
                  .right_margin     = 38,
                  .upper_margin     = 20,
                  .lower_margin     = 3,
                  .hsync_len  = 15,
                  .vsync_len  = 4,
            },
            .bpp  = 16,
            .pcr  = 0xCAD08B80,
      }, {
            .mode = {
                  .name       = "DVI-VGA",
                  .refresh    = 60,
                  .xres       = 640,
                  .yres       = 480,
                  .pixclock   = 32000,
                  .hsync_len  = 7,
                  .left_margin      = 100,
                  .right_margin     = 100,
                  .vsync_len  = 7,
                  .upper_margin     = 7,
                  .lower_margin     = 100,
            },
            .pcr        = 0xFA208B80,
            .bpp        = 16,
      }, {
            .mode = {
                  .name       = "DVI-SVGA",
                  .refresh    = 60,
                  .xres       = 800,
                  .yres       = 600,
                  .pixclock   = 25000,
                  .hsync_len  = 7,
                  .left_margin      = 75,
                  .right_margin     = 75,
                  .vsync_len  = 7,
                  .upper_margin     = 7,
                  .lower_margin     = 75,
            },
            .pcr        = 0xFA208B80,
            .bpp        = 16,
      },
};

static const struct imx_fb_platform_data eukrea_mximxsd_fb_pdata __initconst = {
      .mode       = eukrea_mximxsd_modes,
      .num_modes  = ARRAY_SIZE(eukrea_mximxsd_modes),
      .pwmr       = 0x00A903FF,
      .lscr1            = 0x00120300,
      .dmacr            = 0x00040060,
};

static void eukrea_mbimxsd_lcd_power_set(struct plat_lcd_data *pd,
                           unsigned int power)
{
      if (power)
            gpio_direction_output(GPIO_LCDPWR, 1);
      else
            gpio_direction_output(GPIO_LCDPWR, 0);
}

static struct plat_lcd_data eukrea_mbimxsd_lcd_power_data = {
      .set_power        = eukrea_mbimxsd_lcd_power_set,
};

static struct platform_device eukrea_mbimxsd_lcd_powerdev = {
      .name             = "platform-lcd",
      .dev.platform_data      = &eukrea_mbimxsd_lcd_power_data,
};

static struct gpio_led eukrea_mbimxsd_leds[] = {
      {
            .name             = "led1",
            .default_trigger  = "heartbeat",
            .active_low       = 1,
            .gpio             = GPIO_LED1,
      },
};

static struct gpio_led_platform_data eukrea_mbimxsd_led_info = {
      .leds       = eukrea_mbimxsd_leds,
      .num_leds   = ARRAY_SIZE(eukrea_mbimxsd_leds),
};

static struct platform_device eukrea_mbimxsd_leds_gpio = {
      .name = "leds-gpio",
      .id   = -1,
      .dev  = {
            .platform_data    = &eukrea_mbimxsd_led_info,
      },
};

static struct gpio_keys_button eukrea_mbimxsd_gpio_buttons[] = {
      {
            .gpio       = GPIO_SWITCH1,
            .code       = BTN_0,
            .desc       = "BP1",
            .active_low = 1,
            .wakeup           = 1,
      },
};

static struct gpio_keys_platform_data eukrea_mbimxsd_button_data = {
      .buttons    = eukrea_mbimxsd_gpio_buttons,
      .nbuttons   = ARRAY_SIZE(eukrea_mbimxsd_gpio_buttons),
};

static struct platform_device eukrea_mbimxsd_button_device = {
      .name       = "gpio-keys",
      .id         = -1,
      .num_resources    = 0,
      .dev        = {
            .platform_data    = &eukrea_mbimxsd_button_data,
      }
};

static struct platform_device *platform_devices[] __initdata = {
      &eukrea_mbimxsd_leds_gpio,
      &eukrea_mbimxsd_button_device,
      &eukrea_mbimxsd_lcd_powerdev,
};

static const struct imxuart_platform_data uart_pdata __initconst = {
      .flags = IMXUART_HAVE_RTSCTS,
};

static struct i2c_board_info eukrea_mbimxsd_i2c_devices[] = {
      {
            I2C_BOARD_INFO("tlv320aic23", 0x1a),
      },
};

static const
struct imx_ssi_platform_data eukrea_mbimxsd_ssi_pdata __initconst = {
      .flags = IMX_SSI_SYN | IMX_SSI_NET | IMX_SSI_USE_I2S_SLAVE,
};

/*
 * system init for baseboard usage. Will be called by cpuimx25 init.
 *
 * Add platform devices present on this baseboard and init
 * them from CPU side as far as required to use them later on
 */
void __init eukrea_mbimxsd25_baseboard_init(void)
{
      if (mxc_iomux_v3_setup_multiple_pads(eukrea_mbimxsd_pads,
                  ARRAY_SIZE(eukrea_mbimxsd_pads)))
            printk(KERN_ERR "error setting mbimxsd pads !\n");

#if defined(CONFIG_SND_SOC_EUKREA_TLV320)
      /* SSI unit master I2S codec connected to SSI_AUD5*/
      mxc_audmux_v2_configure_port(0,
                  MXC_AUDMUX_V2_PTCR_SYN |
                  MXC_AUDMUX_V2_PTCR_TFSDIR |
                  MXC_AUDMUX_V2_PTCR_TFSEL(4) |
                  MXC_AUDMUX_V2_PTCR_TCLKDIR |
                  MXC_AUDMUX_V2_PTCR_TCSEL(4),
                  MXC_AUDMUX_V2_PDCR_RXDSEL(4)
      );
      mxc_audmux_v2_configure_port(4,
                  MXC_AUDMUX_V2_PTCR_SYN,
                  MXC_AUDMUX_V2_PDCR_RXDSEL(0)
      );
#endif

      imx25_add_imx_uart1(&uart_pdata);
      imx25_add_imx_fb(&eukrea_mximxsd_fb_pdata);
      imx25_add_imx_ssi(0, &eukrea_mbimxsd_ssi_pdata);

      imx25_add_flexcan1(NULL);
      imx25_add_sdhci_esdhc_imx(0, NULL);

      gpio_request(GPIO_LED1, "LED1");
      gpio_direction_output(GPIO_LED1, 1);
      gpio_free(GPIO_LED1);

      gpio_request(GPIO_SWITCH1, "SWITCH1");
      gpio_direction_input(GPIO_SWITCH1);
      gpio_free(GPIO_SWITCH1);

      gpio_request(GPIO_LCDPWR, "LCDPWR");
      gpio_direction_output(GPIO_LCDPWR, 1);
      gpio_free(GPIO_SWITCH1);

      i2c_register_board_info(0, eukrea_mbimxsd_i2c_devices,
                        ARRAY_SIZE(eukrea_mbimxsd_i2c_devices));

      platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
}

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