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 <asm/arch/dss.h>
  31 #include <asm/arch/clocks.h>
  32 #include "errno.h"
  33 #include <i2c.h>
  34 #ifdef CONFIG_USB_EHCI
  35 #include <usb.h>
  36 #include <asm/ehci-omap.h>
  37 #endif
  38 #include "mcx.h"
  39
  40 DECLARE_GLOBAL_DATA_PTR;
  41
  42 #define HOT_WATER_BUTTON        42
  43 #define LCD_OUTPUT              55
  44
  45 /* Address of the framebuffer in RAM. */
  46 #define FB_START_ADDRESS 0x88000000
  47
  48 #ifdef CONFIG_USB_EHCI
  49 static struct omap_usbhs_board_data usbhs_bdata = {
  50         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
  51         .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
  52         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
  53 };
  54
  55 int ehci_hcd_init(int index, struct ehci_hccr **hccr, struct ehci_hcor **hcor)
  56 {
  57         return omap_ehci_hcd_init(&usbhs_bdata, hccr, hcor);
  58 }
  59
  60 int ehci_hcd_stop(int index)
  61 {
  62         return omap_ehci_hcd_stop();
  63 }
  64 #endif
  65
  66 /*
  67  * Routine: board_init
  68  * Description: Early hardware init.
  69  */
  70 int board_init(void)
  71 {
  72         gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
  73         /* boot param addr */
  74         gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
  75
  76         gpio_direction_output(LCD_OUTPUT, 0);
  77
  78         return 0;
  79 }
  80
  81 #ifdef CONFIG_BOARD_LATE_INIT
  82 int board_late_init(void)
  83 {
  84         if (gpio_request(HOT_WATER_BUTTON, "hot-water-button") < 0) {
  85                 puts("Failed to get hot-water-button pin\n");
  86                 return -ENODEV;
  87         }
  88         gpio_direction_input(HOT_WATER_BUTTON);
  89
  90         /*
  91          * if hot-water-button is pressed
  92          * change bootcmd
  93          */
  94         if (gpio_get_value(HOT_WATER_BUTTON))
  95                 return 0;
  96
  97         setenv("bootcmd", "run swupdate");
  98
  99         return 0;
 100 }
 101 #endif
 102
 103 /*
 104  * Routine: set_muxconf_regs
 105  * Description: Setting up the configuration Mux registers specific to the
 106  *              hardware. Many pins need to be moved from protect to primary
 107  *              mode.
 108  */
 109 void set_muxconf_regs(void)
 110 {
 111         MUX_MCX();
 112 }
 113
 114 #if defined(CONFIG_OMAP_HSMMC) && !defined(CONFIG_SPL_BUILD)
 115 int board_mmc_init(bd_t *bis)
 116 {
 117         return omap_mmc_init(0, 0, 0);
 118 }
 119 #endif
 120
 121 #if defined(CONFIG_VIDEO) && !defined(CONFIG_SPL_BUILD)
 122
 123 static struct panel_config lcd_cfg = {
 124         .timing_h       = PANEL_TIMING_H(40, 40, 48),
 125         .timing_v       = PANEL_TIMING_V(29, 13, 3),
 126         .pol_freq       = 0x00003000, /* Pol Freq */
 127         .divisor        = 0x0001000E,
 128         .panel_type     = 0x01, /* TFT */
 129         .data_lines     = 0x03, /* 24 Bit RGB */
 130         .load_mode      = 0x02, /* Frame Mode */
 131         .panel_color    = 0,
 132         .lcd_size       = PANEL_LCD_SIZE(800, 480),
 133 };
 134
 135 int board_video_init(void)
 136 {
 137         struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
 138         void *fb;
 139
 140         fb = (void *)FB_START_ADDRESS;
 141
 142         lcd_cfg.frame_buffer = fb;
 143
 144         setbits_le32(&prcm_base->fclken_dss, FCK_DSS_ON);
 145         setbits_le32(&prcm_base->iclken_dss, ICK_DSS_ON);
 146
 147         omap3_dss_panel_config(&lcd_cfg);
 148         omap3_dss_enable();
 149
 150         return 0;
 151 }
 152 #endif