LXR uboot/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
  28DECLARE_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
  37static 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
  43int 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
  49int 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 */
  59int 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
  71int 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 */
  98void set_muxconf_regs(void)
  99{
 100        MUX_MCX();
 101}
 102
 103#if defined(CONFIG_OMAP_HSMMC) && !defined(CONFIG_SPL_BUILD)
 104int 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
 112static 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
 125int 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
 143