board/htkw/mcx/mcx.c

   1 /*
   2  * Copyright (C) 2011 Ilya Yanok, Emcraft Systems
   3  *
   4  * Based on ti/evm/evm.c
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc.
  19  */
  20
  21 #include <common.h>
  22 #include <asm/io.h>
  23 #include <asm/arch/mem.h>
  24 #include <asm/arch/mmc_host_def.h>
  25 #include <asm/arch/mux.h>
  26 #include <asm/arch/sys_proto.h>
  27 #include <asm/mach-types.h>
  28 #include <asm/gpio.h>
  29 #include <asm/omap_gpio.h>
  30 #include "errno.h"
  31 #include <i2c.h>
  32 #ifdef CONFIG_USB_EHCI
  33 #include <usb.h>
  34 #include <asm/ehci-omap.h>
  35 #endif
  36 #include "mcx.h"
  37
  38 DECLARE_GLOBAL_DATA_PTR;
  39
  40 #define HOT_WATER_BUTTON        38
  41
  42 #ifdef CONFIG_USB_EHCI
  43 static struct omap_usbhs_board_data usbhs_bdata = {
  44         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
  45         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
  46         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
  47 };
  48
  49 int ehci_hcd_init(int index, struct ehci_hccr **hccr, struct ehci_hcor **hcor)
  50 {
  51         return omap_ehci_hcd_init(&usbhs_bdata, hccr, hcor);
  52 }
  53
  54 int ehci_hcd_stop(int index)
  55 {
  56         return omap_ehci_hcd_stop();
  57 }
  58 #endif
  59
  60 /*
  61  * Routine: board_init
  62  * Description: Early hardware init.
  63  */
  64 int board_init(void)
  65 {
  66         gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
  67         /* boot param addr */
  68         gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
  69
  70         return 0;
  71 }
  72
  73 #ifdef CONFIG_BOARD_LATE_INIT
  74 int board_late_init(void)
  75 {
  76         if (gpio_request(HOT_WATER_BUTTON, "hot-water-button") < 0) {
  77                 puts("Failed to get hot-water-button pin\n");
  78                 return -ENODEV;
  79         }
  80         gpio_direction_input(HOT_WATER_BUTTON);
  81
  82         /*
  83          * if hot-water-button is pressed
  84          * change bootcmd
  85          */
  86         if (gpio_get_value(HOT_WATER_BUTTON))
  87                 return 0;
  88
  89         setenv("bootcmd", "run swupdate");
  90         return 0;
  91 }
  92 #endif
  93
  94 /*
  95  * Routine: set_muxconf_regs
  96  * Description: Setting up the configuration Mux registers specific to the
  97  *              hardware. Many pins need to be moved from protect to primary
  98  *              mode.
  99  */
 100 void set_muxconf_regs(void)
 101 {
 102         MUX_MCX();
 103 }
 104
 105 #if defined(CONFIG_OMAP_HSMMC) && !defined(CONFIG_SPL_BUILD)
 106 int board_mmc_init(bd_t *bis)
 107 {
 108         return omap_mmc_init(0, 0, 0);
 109 }
 110 #endif
 111
 112 #ifdef CONFIG_USB_EHCI_OMAP
 113 #define USB_HOST_PWR_EN         132
 114 int board_usb_init(void)
 115 {
 116         if (gpio_request(USB_HOST_PWR_EN, "USB_HOST_PWR_EN") < 0) {
 117                 puts("Failed to get USB_HOST_PWR_EN pin\n");
 118                 return -ENODEV;
 119         }
 120         gpio_direction_output(USB_HOST_PWR_EN, 1);
 121
 122         return 0;
 123 }
 124 #endif