board/htkw/mcx/mcx.c

   1 /*
   2  * Copyright (C) 2011 Ilya Yanok, Emcraft Systems
   3  *
   4  * Based on ti/evm/evm.c
   5  *
   6  * SPDX-License-Identifier:     GPL-2.0+
   7  */
   8
   9 #include <common.h>
  10 #include <asm/io.h>
  11 #include <asm/arch/mem.h>
  12 #include <asm/arch/mmc_host_def.h>
  13 #include <asm/arch/mux.h>
  14 #include <asm/arch/sys_proto.h>
  15 #include <asm/mach-types.h>
  16 #include <asm/gpio.h>
  17 #include <asm/omap_gpio.h>
  18 #include <asm/arch/dss.h>
  19 #include <asm/arch/clock.h>
  20 #include <errno.h>
  21 #include <i2c.h>
  22 #ifdef CONFIG_USB_EHCI
  23 #include <usb.h>
  24 #include <asm/ehci-omap.h>
  25 #endif
  26 #include "mcx.h"
  27
  28 DECLARE_GLOBAL_DATA_PTR;
  29
  30 #define HOT_WATER_BUTTON        42
  31 #define LCD_OUTPUT              55
  32
  33 /* Address of the framebuffer in RAM. */
  34 #define FB_START_ADDRESS 0x88000000
  35
  36 #ifdef CONFIG_USB_EHCI
  37 static struct omap_usbhs_board_data usbhs_bdata = {
  38         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
  39         .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
  40         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
  41 };
  42
  43 int ehci_hcd_init(int index, enum usb_init_type init,
  44                 struct ehci_hccr **hccr, struct ehci_hcor **hcor)
  45 {
  46         return omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
  47 }
  48
  49 int ehci_hcd_stop(int index)
  50 {
  51         return omap_ehci_hcd_stop();
  52 }
  53 #endif
  54
  55 /*
  56  * Routine: board_init
  57  * Description: Early hardware init.
  58  */
  59 int board_init(void)
  60 {
  61         gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
  62         /* boot param addr */
  63         gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
  64
  65         gpio_direction_output(LCD_OUTPUT, 0);
  66
  67         return 0;
  68 }
  69
  70 #ifdef CONFIG_BOARD_LATE_INIT
  71 int board_late_init(void)
  72 {
  73         if (gpio_request(HOT_WATER_BUTTON, "hot-water-button") < 0) {
  74                 puts("Failed to get hot-water-button pin\n");
  75                 return -ENODEV;
  76         }
  77         gpio_direction_input(HOT_WATER_BUTTON);
  78
  79         /*
  80          * if hot-water-button is pressed
  81          * change bootcmd
  82          */
  83         if (gpio_get_value(HOT_WATER_BUTTON))
  84                 return 0;
  85
  86         setenv("bootcmd", "run swupdate");
  87
  88         return 0;
  89 }
  90 #endif
  91
  92 /*
  93  * Routine: set_muxconf_regs
  94  * Description: Setting up the configuration Mux registers specific to the
  95  *              hardware. Many pins need to be moved from protect to primary
  96  *              mode.
  97  */
  98 void set_muxconf_regs(void)
  99 {
 100         MUX_MCX();
 101 }
 102
 103 #if defined(CONFIG_OMAP_HSMMC) && !defined(CONFIG_SPL_BUILD)
 104 int board_mmc_init(bd_t *bis)
 105 {
 106         return omap_mmc_init(0, 0, 0, -1, -1);
 107 }
 108 #endif
 109
 110 #if defined(CONFIG_VIDEO) && !defined(CONFIG_SPL_BUILD)
 111
 112 static struct panel_config lcd_cfg = {
 113         .timing_h       = PANEL_TIMING_H(40, 40, 48),
 114         .timing_v       = PANEL_TIMING_V(29, 13, 3),
 115         .pol_freq       = 0x00003000, /* Pol Freq */
 116         .divisor        = 0x0001000E,
 117         .panel_type     = 0x01, /* TFT */
 118         .data_lines     = 0x03, /* 24 Bit RGB */
 119         .load_mode      = 0x02, /* Frame Mode */
 120         .panel_color    = 0,
 121         .lcd_size       = PANEL_LCD_SIZE(800, 480),
 122         .gfx_format     = GFXFORMAT_RGB24_UNPACKED,
 123 };
 124
 125 int board_video_init(void)
 126 {
 127         struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
 128         void *fb;
 129
 130         fb = (void *)FB_START_ADDRESS;
 131
 132         lcd_cfg.frame_buffer = fb;
 133
 134         setbits_le32(&prcm_base->fclken_dss, FCK_DSS_ON);
 135         setbits_le32(&prcm_base->iclken_dss, ICK_DSS_ON);
 136
 137         omap3_dss_panel_config(&lcd_cfg);
 138         omap3_dss_enable();
 139
 140         return 0;
 141 }
 142 #endif