arch/arm/mach-omap2/board-am3517crane.c

   1 /*
   2  * Support for AM3517/05 Craneboard
   3  * http://www.mistralsolutions.com/products/craneboard.php
   4  *
   5  * Copyright (C) 2010 Mistral Solutions Pvt Ltd. <www.mistralsolutions.com>
   6  * Author: R.Srinath <srinath@mistralsolutions.com>
   7  *
   8  * Based on mach-omap2/board-am3517evm.c
   9  *
  10  * This program is free software; you can redistribute it and/or modify it
  11  * under the terms of the GNU General Public License as  published by the
  12  * Free Software Foundation version 2.
  13  *
  14  * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
  15  * whether express or implied; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  */
  19
  20 #include <linux/kernel.h>
  21 #include <linux/init.h>
  22 #include <linux/gpio.h>
  23
  24 #include <asm/mach-types.h>
  25 #include <asm/mach/arch.h>
  26 #include <asm/mach/map.h>
  27
  28 #include "common.h"
  29
  30 #include "am35xx-emac.h"
  31 #include "mux.h"
  32 #include "control.h"
  33
  34 #define GPIO_USB_POWER          35
  35 #define GPIO_USB_NRESET         38
  36
  37 #ifdef CONFIG_OMAP_MUX
  38 static struct omap_board_mux board_mux[] __initdata = {
  39         { .reg_offset = OMAP_MUX_TERMINATOR },
  40 };
  41 #endif
  42
  43 static struct usbhs_omap_board_data usbhs_bdata __initdata = {
  44         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
  45         .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
  46         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
  47
  48         .phy_reset  = true,
  49         .reset_gpio_port[0]  = GPIO_USB_NRESET,
  50         .reset_gpio_port[1]  = -EINVAL,
  51         .reset_gpio_port[2]  = -EINVAL
  52 };
  53
  54 static void __init am3517_crane_init(void)
  55 {
  56         int ret;
  57
  58         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
  59         omap_serial_init();
  60         omap_sdrc_init(NULL, NULL);
  61
  62         /* Configure GPIO for EHCI port */
  63         if (omap_mux_init_gpio(GPIO_USB_NRESET, OMAP_PIN_OUTPUT)) {
  64                 pr_err("Can not configure mux for GPIO_USB_NRESET %d\n",
  65                         GPIO_USB_NRESET);
  66                 return;
  67         }
  68
  69         if (omap_mux_init_gpio(GPIO_USB_POWER, OMAP_PIN_OUTPUT)) {
  70                 pr_err("Can not configure mux for GPIO_USB_POWER %d\n",
  71                         GPIO_USB_POWER);
  72                 return;
  73         }
  74
  75         ret = gpio_request_one(GPIO_USB_POWER, GPIOF_OUT_INIT_HIGH,
  76                                "usb_ehci_enable");
  77         if (ret < 0) {
  78                 pr_err("Can not request GPIO %d\n", GPIO_USB_POWER);
  79                 return;
  80         }
  81
  82         usbhs_init(&usbhs_bdata);
  83         am35xx_emac_init(AM35XX_DEFAULT_MDIO_FREQUENCY, 1);
  84 }
  85
  86 MACHINE_START(CRANEBOARD, "AM3517/05 CRANEBOARD")
  87         .atag_offset    = 0x100,
  88         .reserve        = omap_reserve,
  89         .map_io         = omap3_map_io,
  90         .init_early     = am35xx_init_early,
  91         .init_irq       = omap3_init_irq,
  92         .handle_irq     = omap3_intc_handle_irq,
  93         .init_machine   = am3517_crane_init,
  94         .init_late      = am35xx_init_late,
  95         .timer          = &omap3_timer,
  96         .restart        = omap3xxx_restart,
  97 MACHINE_END