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mach-mxt_td60.c

/*
 *  Copyright (C) 2000 Deep Blue Solutions Ltd
 *  Copyright (C) 2002 Shane Nay (shane@minirl.com)
 *  Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved.
 *
 * 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.
 */

#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/i2c.h>
#include <linux/irq.h>
#include <mach/common.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/mach/map.h>
#include <linux/gpio.h>
#include <mach/iomux-mx27.h>
#include <mach/mxc_nand.h>
#include <linux/i2c/pca953x.h>

#include "devices-imx27.h"

static const int mxt_td60_pins[] __initconst = {
      /* UART0 */
      PE12_PF_UART1_TXD,
      PE13_PF_UART1_RXD,
      PE14_PF_UART1_CTS,
      PE15_PF_UART1_RTS,
      /* UART1 */
      PE3_PF_UART2_CTS,
      PE4_PF_UART2_RTS,
      PE6_PF_UART2_TXD,
      PE7_PF_UART2_RXD,
      /* UART2 */
      PE8_PF_UART3_TXD,
      PE9_PF_UART3_RXD,
      PE10_PF_UART3_CTS,
      PE11_PF_UART3_RTS,
      /* FEC */
      PD0_AIN_FEC_TXD0,
      PD1_AIN_FEC_TXD1,
      PD2_AIN_FEC_TXD2,
      PD3_AIN_FEC_TXD3,
      PD4_AOUT_FEC_RX_ER,
      PD5_AOUT_FEC_RXD1,
      PD6_AOUT_FEC_RXD2,
      PD7_AOUT_FEC_RXD3,
      PD8_AF_FEC_MDIO,
      PD9_AIN_FEC_MDC,
      PD10_AOUT_FEC_CRS,
      PD11_AOUT_FEC_TX_CLK,
      PD12_AOUT_FEC_RXD0,
      PD13_AOUT_FEC_RX_DV,
      PD14_AOUT_FEC_RX_CLK,
      PD15_AOUT_FEC_COL,
      PD16_AIN_FEC_TX_ER,
      PF23_AIN_FEC_TX_EN,
      /* I2C1 */
      PD17_PF_I2C_DATA,
      PD18_PF_I2C_CLK,
      /* I2C2 */
      PC5_PF_I2C2_SDA,
      PC6_PF_I2C2_SCL,
      /* FB */
      PA5_PF_LSCLK,
      PA6_PF_LD0,
      PA7_PF_LD1,
      PA8_PF_LD2,
      PA9_PF_LD3,
      PA10_PF_LD4,
      PA11_PF_LD5,
      PA12_PF_LD6,
      PA13_PF_LD7,
      PA14_PF_LD8,
      PA15_PF_LD9,
      PA16_PF_LD10,
      PA17_PF_LD11,
      PA18_PF_LD12,
      PA19_PF_LD13,
      PA20_PF_LD14,
      PA21_PF_LD15,
      PA22_PF_LD16,
      PA23_PF_LD17,
      PA25_PF_CLS,
      PA27_PF_SPL_SPR,
      PA28_PF_HSYNC,
      PA29_PF_VSYNC,
      PA30_PF_CONTRAST,
      PA31_PF_OE_ACD,
      /* OWIRE */
      PE16_AF_OWIRE,
      /* SDHC1*/
      PE18_PF_SD1_D0,
      PE19_PF_SD1_D1,
      PE20_PF_SD1_D2,
      PE21_PF_SD1_D3,
      PE22_PF_SD1_CMD,
      PE23_PF_SD1_CLK,
      PF8_AF_ATA_IORDY,
      /* SDHC2*/
      PB4_PF_SD2_D0,
      PB5_PF_SD2_D1,
      PB6_PF_SD2_D2,
      PB7_PF_SD2_D3,
      PB8_PF_SD2_CMD,
      PB9_PF_SD2_CLK,
};

static const struct mxc_nand_platform_data
mxt_td60_nand_board_info __initconst = {
      .width = 1,
      .hw_ecc = 1,
};

static const struct imxi2c_platform_data mxt_td60_i2c0_data __initconst = {
      .bitrate = 100000,
};

/* PCA9557 */
static int mxt_td60_pca9557_setup(struct i2c_client *client,
                        unsigned gpio_base, unsigned ngpio,
                        void *context)
{
      static int mxt_td60_gpio_value[] = {
            -1, -1, -1, -1, -1, -1, -1, 1
      };
      int n;

      for (n = 0; n < ARRAY_SIZE(mxt_td60_gpio_value); ++n) {
            gpio_request(gpio_base + n, "MXT_TD60 GPIO Exp");
            if (mxt_td60_gpio_value[n] < 0)
                  gpio_direction_input(gpio_base + n);
            else
                  gpio_direction_output(gpio_base + n,
                                    mxt_td60_gpio_value[n]);
            gpio_export(gpio_base + n, 0);
      }

      return 0;
}

static struct pca953x_platform_data mxt_td60_pca9557_pdata = {
      .gpio_base  = 240, /* place PCA9557 after all MX27 gpio pins */
      .invert           = 0, /* Do not invert */
      .setup            = mxt_td60_pca9557_setup,
};

static struct i2c_board_info mxt_td60_i2c_devices[] = {
      {
            I2C_BOARD_INFO("pca9557", 0x18),
            .platform_data = &mxt_td60_pca9557_pdata,
      },
};

static const struct imxi2c_platform_data mxt_td60_i2c1_data __initconst = {
      .bitrate = 100000,
};

static struct i2c_board_info mxt_td60_i2c2_devices[] = {
};

static struct imx_fb_videomode mxt_td60_modes[] = {
      {
            .mode = {
                  .name       = "Chimei LW700AT9003",
                  .refresh    = 60,
                  .xres       = 800,
                  .yres       = 480,
                  .pixclock   = 30303,
                  .hsync_len  = 64,
                  .left_margin      = 0x67,
                  .right_margin     = 0x68,
                  .vsync_len  = 16,
                  .upper_margin     = 0x0f,
                  .lower_margin     = 0x0f,
            },
            .bpp        = 16,
            .pcr        = 0xFA208B83,
      },
};

static const struct imx_fb_platform_data mxt_td60_fb_data __initconst = {
      .mode = mxt_td60_modes,
      .num_modes = ARRAY_SIZE(mxt_td60_modes),

      /*
       * - HSYNC active high
       * - VSYNC active high
       * - clk notenabled while idle
       * - clock inverted
       * - data not inverted
       * - data enable low active
       * - enable sharp mode
       */
      .pwmr       = 0x00A903FF,
      .lscr1            = 0x00120300,
      .dmacr            = 0x00020010,
};

static int mxt_td60_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
                        void *data)
{
      return request_irq(IRQ_GPIOF(8), detect_irq, IRQF_TRIGGER_FALLING,
                        "sdhc1-card-detect", data);
}

static void mxt_td60_sdhc1_exit(struct device *dev, void *data)
{
      free_irq(IRQ_GPIOF(8), data);
}

static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
      .init = mxt_td60_sdhc1_init,
      .exit = mxt_td60_sdhc1_exit,
};

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

static void __init mxt_td60_board_init(void)
{
      mxc_gpio_setup_multiple_pins(mxt_td60_pins, ARRAY_SIZE(mxt_td60_pins),
                  "MXT_TD60");

      imx27_add_imx_uart0(&uart_pdata);
      imx27_add_imx_uart1(&uart_pdata);
      imx27_add_imx_uart2(&uart_pdata);
      imx27_add_mxc_nand(&mxt_td60_nand_board_info);

      i2c_register_board_info(0, mxt_td60_i2c_devices,
                        ARRAY_SIZE(mxt_td60_i2c_devices));

      i2c_register_board_info(1, mxt_td60_i2c2_devices,
                        ARRAY_SIZE(mxt_td60_i2c2_devices));

      imx27_add_imx_i2c(0, &mxt_td60_i2c0_data);
      imx27_add_imx_i2c(1, &mxt_td60_i2c1_data);
      imx27_add_imx_fb(&mxt_td60_fb_data);
      imx27_add_mxc_mmc(0, &sdhc1_pdata);
      imx27_add_fec(NULL);
}

static void __init mxt_td60_timer_init(void)
{
      mx27_clocks_init(26000000);
}

static struct sys_timer mxt_td60_timer = {
      .init = mxt_td60_timer_init,
};

MACHINE_START(MXT_TD60, "Maxtrack i-MXT TD60")
      /* maintainer: Maxtrack Industrial */
      .boot_params      = MX27_PHYS_OFFSET + 0x100,
      .map_io           = mx27_map_io,
      .init_irq   = mx27_init_irq,
      .init_machine     = mxt_td60_board_init,
      .timer            = &mxt_td60_timer,
MACHINE_END


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