mach-mxt_td60.c

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/*
 *  Copyright (C) 2000 Deep Blue Solutions Ltd
 *  Copyright (C) 2002 Shane Nay ([email protected])
 *  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 <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(gpio_to_irq(IMX_GPIO_NR(6, 8)), detect_irq,
               IRQF_TRIGGER_FALLING, "sdhc1-card-detect", data);
}

static void mxt_td60_sdhc1_exit(struct device *dev, void *data)
{
    free_irq(gpio_to_irq(IMX_GPIO_NR(6, 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)
{
    imx27_soc_init();

    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 */
    .atag_offset = 0x100,
    .map_io = mx27_map_io,
    .init_early = imx27_init_early,
    .init_irq = mx27_init_irq,
    .handle_irq = imx27_handle_irq,
    .timer = &mxt_td60_timer,
    .init_machine = mxt_td60_board_init,
    .restart    = mxc_restart,
MACHINE_END