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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 <srinath@mistralsolutions.com>
*
* 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 <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <plat/board.h>
#include <plat/common.h>
#include <plat/usb.h>
#include "mux.h"
#include "control.h"
#define GPIO_USB_POWER 35
#define GPIO_USB_NRESET 38
/* Board initialization */
static struct omap_board_config_kernel am3517_crane_config[] __initdata = {
};
#ifdef CONFIG_OMAP_MUX
static struct omap_board_mux board_mux[] __initdata = {
{ .reg_offset = OMAP_MUX_TERMINATOR },
};
#else
#define board_mux NULL
#endif
static void __init am3517_crane_init_early(void)
{
omap_board_config = am3517_crane_config;
omap_board_config_size = ARRAY_SIZE(am3517_crane_config);
omap2_init_common_infrastructure();
omap2_init_common_devices(NULL, NULL);
}
static struct ehci_hcd_omap_platform_data ehci_pdata __initdata = {
.port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
.port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
.port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
.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();
/* 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(GPIO_USB_POWER, "usb_ehci_enable");
if (ret < 0) {
pr_err("Can not request GPIO %d\n", GPIO_USB_POWER);
return;
}
ret = gpio_direction_output(GPIO_USB_POWER, 1);
if (ret < 0) {
gpio_free(GPIO_USB_POWER);
pr_err("Unable to initialize EHCI power\n");
return;
}
usb_ehci_init(&ehci_pdata);
}
MACHINE_START(CRANEBOARD, "AM3517/05 CRANEBOARD")
.boot_params = 0x80000100,
.reserve = omap_reserve,
.map_io = omap3_map_io,
.init_early = am3517_crane_init_early,
.init_irq = omap_init_irq,
.init_machine = am3517_crane_init,
.timer = &omap_timer,
MACHINE_END
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