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mach-mx25_3ds.c

/*
 * Copyright 2009 Sascha Hauer, <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.
 */

/*
 * 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/input/matrix_keypad.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"

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,
};

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

#define FEC_ENABLE_GPIO       35
#define FEC_RESET_B_GPIO      104

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 __initdata = {
      .keymap           = mx25pdk_keymap,
      .keymap_size      = ARRAY_SIZE(mx25pdk_keymap),
};

static const struct mxc_usbh_platform_data usbh2_pdata __initconst = {
      .portsc     = MXC_EHCI_MODE_SERIAL,
      .flags      = MXC_EHCI_INTERNAL_PHY,
};

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

static void __init mx25pdk_init(void)
{
      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(NULL);
      imx25_add_imx_fb(&mx25pdk_fb_pdata);
      imx25_add_imx2_wdt(NULL);

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

      imx25_add_sdhci_esdhc_imx(0, 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. */
      .boot_params    = MX25_PHYS_OFFSET + 0x100,
      .map_io         = mx25_map_io,
      .init_irq       = mx25_init_irq,
      .init_machine   = mx25pdk_init,
      .timer          = &mx25pdk_timer,
MACHINE_END


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