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mach-cpuimx35.c

/*
 * Copyright (C) 2010 Eric Benard - eric@eukrea.com
 * Copyright (C) 2009 Sascha Hauer, Pengutronix
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <linux/types.h>
#include <linux/init.h>

#include <linux/platform_device.h>
#include <linux/mtd/physmap.h>
#include <linux/memory.h>
#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/i2c/tsc2007.h>
#include <linux/usb/otg.h>
#include <linux/usb/ulpi.h>
#include <linux/i2c-gpio.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/mach/map.h>

#include <mach/eukrea-baseboards.h>
#include <mach/hardware.h>
#include <mach/common.h>
#include <mach/iomux-mx35.h>
#include <mach/mxc_nand.h>

#include "devices-imx35.h"
#include "devices.h"

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

static const struct imxi2c_platform_data
            eukrea_cpuimx35_i2c0_data __initconst = {
      .bitrate =        100000,
};

static struct tsc2007_platform_data tsc2007_info = {
      .model                  = 2007,
      .x_plate_ohms           = 180,
};

#define TSC2007_IRQGPIO       (2 * 32 + 2)
static struct i2c_board_info eukrea_cpuimx35_i2c_devices[] = {
      {
            I2C_BOARD_INFO("pcf8563", 0x51),
      }, {
            I2C_BOARD_INFO("tsc2007", 0x48),
            .type       = "tsc2007",
            .platform_data    = &tsc2007_info,
            .irq        = gpio_to_irq(TSC2007_IRQGPIO),
      },
};

static iomux_v3_cfg_t eukrea_cpuimx35_pads[] = {
      /* UART1 */
      MX35_PAD_CTS1__UART1_CTS,
      MX35_PAD_RTS1__UART1_RTS,
      MX35_PAD_TXD1__UART1_TXD_MUX,
      MX35_PAD_RXD1__UART1_RXD_MUX,
      /* FEC */
      MX35_PAD_FEC_TX_CLK__FEC_TX_CLK,
      MX35_PAD_FEC_RX_CLK__FEC_RX_CLK,
      MX35_PAD_FEC_RX_DV__FEC_RX_DV,
      MX35_PAD_FEC_COL__FEC_COL,
      MX35_PAD_FEC_RDATA0__FEC_RDATA_0,
      MX35_PAD_FEC_TDATA0__FEC_TDATA_0,
      MX35_PAD_FEC_TX_EN__FEC_TX_EN,
      MX35_PAD_FEC_MDC__FEC_MDC,
      MX35_PAD_FEC_MDIO__FEC_MDIO,
      MX35_PAD_FEC_TX_ERR__FEC_TX_ERR,
      MX35_PAD_FEC_RX_ERR__FEC_RX_ERR,
      MX35_PAD_FEC_CRS__FEC_CRS,
      MX35_PAD_FEC_RDATA1__FEC_RDATA_1,
      MX35_PAD_FEC_TDATA1__FEC_TDATA_1,
      MX35_PAD_FEC_RDATA2__FEC_RDATA_2,
      MX35_PAD_FEC_TDATA2__FEC_TDATA_2,
      MX35_PAD_FEC_RDATA3__FEC_RDATA_3,
      MX35_PAD_FEC_TDATA3__FEC_TDATA_3,
      /* I2C1 */
      MX35_PAD_I2C1_CLK__I2C1_SCL,
      MX35_PAD_I2C1_DAT__I2C1_SDA,
      /* TSC2007 IRQ */
      MX35_PAD_ATA_DA2__GPIO3_2,
};

static const struct mxc_nand_platform_data
            eukrea_cpuimx35_nand_board_info __initconst = {
      .width            = 1,
      .hw_ecc           = 1,
      .flash_bbt  = 1,
};

static const struct mxc_usbh_platform_data otg_pdata __initconst = {
      .portsc     = MXC_EHCI_MODE_UTMI,
      .flags      = MXC_EHCI_INTERFACE_DIFF_UNI,
};

static const struct mxc_usbh_platform_data usbh1_pdata __initconst = {
      .portsc     = MXC_EHCI_MODE_SERIAL,
      .flags      = MXC_EHCI_INTERFACE_SINGLE_UNI | MXC_EHCI_INTERNAL_PHY |
              MXC_EHCI_IPPUE_DOWN,
};

static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
      .operating_mode   = FSL_USB2_DR_DEVICE,
      .phy_mode   = FSL_USB2_PHY_UTMI,
      .workaround = FLS_USB2_WORKAROUND_ENGCM09152,
};

static int otg_mode_host;

static int __init eukrea_cpuimx35_otg_mode(char *options)
{
      if (!strcmp(options, "host"))
            otg_mode_host = 1;
      else if (!strcmp(options, "device"))
            otg_mode_host = 0;
      else
            pr_info("otg_mode neither \"host\" nor \"device\". "
                  "Defaulting to device\n");
      return 0;
}
__setup("otg_mode=", eukrea_cpuimx35_otg_mode);

/*
 * Board specific initialization.
 */
static void __init mxc_board_init(void)
{
      mxc_iomux_v3_setup_multiple_pads(eukrea_cpuimx35_pads,
                  ARRAY_SIZE(eukrea_cpuimx35_pads));

      imx35_add_fec(NULL);
      imx35_add_imx2_wdt(NULL);

      imx35_add_imx_uart0(&uart_pdata);
      imx35_add_mxc_nand(&eukrea_cpuimx35_nand_board_info);

      i2c_register_board_info(0, eukrea_cpuimx35_i2c_devices,
                  ARRAY_SIZE(eukrea_cpuimx35_i2c_devices));
      imx35_add_imx_i2c0(&eukrea_cpuimx35_i2c0_data);

      if (otg_mode_host)
            imx35_add_mxc_ehci_otg(&otg_pdata);
      else
            imx35_add_fsl_usb2_udc(&otg_device_pdata);

      imx35_add_mxc_ehci_hs(&usbh1_pdata);

#ifdef CONFIG_MACH_EUKREA_MBIMXSD35_BASEBOARD
      eukrea_mbimxsd35_baseboard_init();
#endif
}

static void __init eukrea_cpuimx35_timer_init(void)
{
      mx35_clocks_init();
}

struct sys_timer eukrea_cpuimx35_timer = {
      .init = eukrea_cpuimx35_timer_init,
};

MACHINE_START(EUKREA_CPUIMX35, "Eukrea CPUIMX35")
      /* Maintainer: Eukrea Electromatique */
      .boot_params    = MX3x_PHYS_OFFSET + 0x100,
      .map_io         = mx35_map_io,
      .init_irq       = mx35_init_irq,
      .init_machine   = mxc_board_init,
      .timer          = &eukrea_cpuimx35_timer,
MACHINE_END

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