mach-mx25_3ds.c

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/*
 * Copyright 2009 Sascha Hauer, <[email protected]>
 *
 * 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.
 */

/*
 * This machine is known as:
 *  - i.MX25 3-Stack Development System
 *  - i.MX25 Platform Development Kit (i.MX25 PDK)
 */

#include <linux/types.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/clk.h>
#include <linux/irq.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/usb/otg.h>

#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/memory.h>
#include <asm/mach/map.h>
#include <mach/common.h>
#include <mach/mx25.h>
#include <mach/iomux-mx25.h>

#include "devices-imx25.h"

#define MX25PDK_CAN_PWDN    IMX_GPIO_NR(4, 6)

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

static iomux_v3_cfg_t mx25pdk_pads[] = {
    MX25_PAD_FEC_MDC__FEC_MDC,
    MX25_PAD_FEC_MDIO__FEC_MDIO,
    MX25_PAD_FEC_TDATA0__FEC_TDATA0,
    MX25_PAD_FEC_TDATA1__FEC_TDATA1,
    MX25_PAD_FEC_TX_EN__FEC_TX_EN,
    MX25_PAD_FEC_RDATA0__FEC_RDATA0,
    MX25_PAD_FEC_RDATA1__FEC_RDATA1,
    MX25_PAD_FEC_RX_DV__FEC_RX_DV,
    MX25_PAD_FEC_TX_CLK__FEC_TX_CLK,
    MX25_PAD_A17__GPIO_2_3, /* FEC_EN, GPIO 35 */
    MX25_PAD_D12__GPIO_4_8, /* FEC_RESET_B, GPIO 104 */

    /* 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,

    /* Keypad */
    MX25_PAD_KPP_ROW0__KPP_ROW0,
    MX25_PAD_KPP_ROW1__KPP_ROW1,
    MX25_PAD_KPP_ROW2__KPP_ROW2,
    MX25_PAD_KPP_ROW3__KPP_ROW3,
    MX25_PAD_KPP_COL0__KPP_COL0,
    MX25_PAD_KPP_COL1__KPP_COL1,
    MX25_PAD_KPP_COL2__KPP_COL2,
    MX25_PAD_KPP_COL3__KPP_COL3,

    /* 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,
    MX25_PAD_A14__GPIO_2_0, /* WriteProtect */
    MX25_PAD_A15__GPIO_2_1, /* CardDetect */

    /* I2C1 */
    MX25_PAD_I2C1_CLK__I2C1_CLK,
    MX25_PAD_I2C1_DAT__I2C1_DAT,

    /* CAN1 */
    MX25_PAD_GPIO_A__CAN1_TX,
    MX25_PAD_GPIO_B__CAN1_RX,
    MX25_PAD_D14__GPIO_4_6, /* CAN_PWDN */
};

static const struct fec_platform_data mx25_fec_pdata __initconst = {
    .phy    = PHY_INTERFACE_MODE_RMII,
};

#define FEC_ENABLE_GPIO     IMX_GPIO_NR(2, 3)
#define FEC_RESET_B_GPIO    IMX_GPIO_NR(4, 8)

static void __init mx25pdk_fec_reset(void)
{
    gpio_request(FEC_ENABLE_GPIO, "FEC PHY enable");
    gpio_request(FEC_RESET_B_GPIO, "FEC PHY reset");

    gpio_direction_output(FEC_ENABLE_GPIO, 0);  /* drop PHY power */
    gpio_direction_output(FEC_RESET_B_GPIO, 0); /* assert reset */
    udelay(2);

    /* turn on PHY power and lift reset */
    gpio_set_value(FEC_ENABLE_GPIO, 1);
    gpio_set_value(FEC_RESET_B_GPIO, 1);
}

static const struct mxc_nand_platform_data
mx25pdk_nand_board_info __initconst = {
    .width      = 1,
    .hw_ecc     = 1,
    .flash_bbt  = 1,
};

static struct imx_fb_videomode mx25pdk_modes[] = {
    {
        .mode   = {
            .name       = "CRT-VGA",
            .refresh    = 60,
            .xres       = 640,
            .yres       = 480,
            .pixclock   = 39683,
            .left_margin    = 45,
            .right_margin   = 114,
            .upper_margin   = 33,
            .lower_margin   = 11,
            .hsync_len  = 1,
            .vsync_len  = 1,
        },
        .bpp    = 16,
        .pcr    = 0xFA208B80,
    },
};

static const struct imx_fb_platform_data mx25pdk_fb_pdata __initconst = {
    .mode       = mx25pdk_modes,
    .num_modes  = ARRAY_SIZE(mx25pdk_modes),
    .pwmr       = 0x00A903FF,
    .lscr1      = 0x00120300,
    .dmacr      = 0x00020010,
};

static const uint32_t mx25pdk_keymap[] = {
    KEY(0, 0, KEY_UP),
    KEY(0, 1, KEY_DOWN),
    KEY(0, 2, KEY_VOLUMEDOWN),
    KEY(0, 3, KEY_HOME),
    KEY(1, 0, KEY_RIGHT),
    KEY(1, 1, KEY_LEFT),
    KEY(1, 2, KEY_ENTER),
    KEY(1, 3, KEY_VOLUMEUP),
    KEY(2, 0, KEY_F6),
    KEY(2, 1, KEY_F8),
    KEY(2, 2, KEY_F9),
    KEY(2, 3, KEY_F10),
    KEY(3, 0, KEY_F1),
    KEY(3, 1, KEY_F2),
    KEY(3, 2, KEY_F3),
    KEY(3, 3, KEY_POWER),
};

static const struct matrix_keymap_data mx25pdk_keymap_data __initconst = {
    .keymap     = mx25pdk_keymap,
    .keymap_size    = ARRAY_SIZE(mx25pdk_keymap),
};

static int mx25pdk_usbh2_init(struct platform_device *pdev)
{
    return mx25_initialize_usb_hw(pdev->id, MXC_EHCI_INTERNAL_PHY);
}

static const struct mxc_usbh_platform_data usbh2_pdata __initconst = {
    .init   = mx25pdk_usbh2_init,
    .portsc = MXC_EHCI_MODE_SERIAL,
};

static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
    .operating_mode = FSL_USB2_DR_DEVICE,
    .phy_mode       = FSL_USB2_PHY_UTMI,
};

static const struct imxi2c_platform_data mx25_3ds_i2c0_data __initconst = {
    .bitrate = 100000,
};

#define SD1_GPIO_WP IMX_GPIO_NR(2, 0)
#define SD1_GPIO_CD IMX_GPIO_NR(2, 1)

static const struct esdhc_platform_data mx25pdk_esdhc_pdata __initconst = {
    .wp_gpio = SD1_GPIO_WP,
    .cd_gpio = SD1_GPIO_CD,
    .wp_type = ESDHC_WP_GPIO,
    .cd_type = ESDHC_CD_GPIO,
};

static void __init mx25pdk_init(void)
{
    imx25_soc_init();

    mxc_iomux_v3_setup_multiple_pads(mx25pdk_pads,
            ARRAY_SIZE(mx25pdk_pads));

    imx25_add_imx_uart0(&uart_pdata);
    imx25_add_fsl_usb2_udc(&otg_device_pdata);
    imx25_add_mxc_ehci_hs(&usbh2_pdata);
    imx25_add_mxc_nand(&mx25pdk_nand_board_info);
    imx25_add_imxdi_rtc();
    imx25_add_imx_fb(&mx25pdk_fb_pdata);
    imx25_add_imx2_wdt();

    mx25pdk_fec_reset();
    imx25_add_fec(&mx25_fec_pdata);
    imx25_add_imx_keypad(&mx25pdk_keymap_data);

    imx25_add_sdhci_esdhc_imx(0, &mx25pdk_esdhc_pdata);
    imx25_add_imx_i2c0(&mx25_3ds_i2c0_data);

    gpio_request_one(MX25PDK_CAN_PWDN, GPIOF_OUT_INIT_LOW, "can-pwdn");
    imx25_add_flexcan0(NULL);
}

static void __init mx25pdk_timer_init(void)
{
    mx25_clocks_init();
}

static struct sys_timer mx25pdk_timer = {
    .init   = mx25pdk_timer_init,
};

MACHINE_START(MX25_3DS, "Freescale MX25PDK (3DS)")
    /* Maintainer: Freescale Semiconductor, Inc. */
    .atag_offset = 0x100,
    .map_io = mx25_map_io,
    .init_early = imx25_init_early,
    .init_irq = mx25_init_irq,
    .handle_irq = imx25_handle_irq,
    .timer = &mx25pdk_timer,
    .init_machine = mx25pdk_init,
    .restart    = mxc_restart,
MACHINE_END