board-am3517crane.c

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/*
 * Support for AM3517/05 Craneboard
 * http://www.mistralsolutions.com/products/craneboard.php
 *
 * Copyright (C) 2010 Mistral Solutions Pvt Ltd. <www.mistralsolutions.com>
 * Author: R.Srinath <[email protected]>
 *
 * Based on mach-omap2/board-am3517evm.c
 *
 * 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 version 2.
 *
 * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
 * whether express or implied; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/gpio.h>

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

#include "common.h"
#include <plat/usb.h>

#include "am35xx-emac.h"
#include "mux.h"
#include "control.h"

#define GPIO_USB_POWER      35
#define GPIO_USB_NRESET     38

#ifdef CONFIG_OMAP_MUX
static struct omap_board_mux board_mux[] __initdata = {
    { .reg_offset = OMAP_MUX_TERMINATOR },
};
#endif

static struct usbhs_omap_board_data usbhs_bdata __initdata = {
    .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
    .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
    .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,

    .phy_reset  = true,
    .reset_gpio_port[0]  = GPIO_USB_NRESET,
    .reset_gpio_port[1]  = -EINVAL,
    .reset_gpio_port[2]  = -EINVAL
};

static void __init am3517_crane_init(void)
{
    int ret;

    omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
    omap_serial_init();
    omap_sdrc_init(NULL, NULL);

    /* Configure GPIO for EHCI port */
    if (omap_mux_init_gpio(GPIO_USB_NRESET, OMAP_PIN_OUTPUT)) {
        pr_err("Can not configure mux for GPIO_USB_NRESET %d\n",
            GPIO_USB_NRESET);
        return;
    }

    if (omap_mux_init_gpio(GPIO_USB_POWER, OMAP_PIN_OUTPUT)) {
        pr_err("Can not configure mux for GPIO_USB_POWER %d\n",
            GPIO_USB_POWER);
        return;
    }

    ret = gpio_request_one(GPIO_USB_POWER, GPIOF_OUT_INIT_HIGH,
                   "usb_ehci_enable");
    if (ret < 0) {
        pr_err("Can not request GPIO %d\n", GPIO_USB_POWER);
        return;
    }

    usbhs_init(&usbhs_bdata);
    am35xx_emac_init(AM35XX_DEFAULT_MDIO_FREQUENCY, 1);
}

MACHINE_START(CRANEBOARD, "AM3517/05 CRANEBOARD")
    .atag_offset    = 0x100,
    .reserve    = omap_reserve,
    .map_io     = omap3_map_io,
    .init_early = am35xx_init_early,
    .init_irq   = omap3_init_irq,
    .handle_irq = omap3_intc_handle_irq,
    .init_machine   = am3517_crane_init,
    .init_late  = am35xx_init_late,
    .timer      = &omap3_timer,
    .restart    = omap_prcm_restart,
MACHINE_END