uboot/board/samsung/common/exynos5-dt.c
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   1/*
   2 * Copyright (C) 2012 Samsung Electronics
   3 *
   4 * SPDX-License-Identifier:     GPL-2.0+
   5 */
   6
   7#include <common.h>
   8#include <dm.h>
   9#include <dwc3-uboot.h>
  10#include <fdtdec.h>
  11#include <asm/io.h>
  12#include <errno.h>
  13#include <i2c.h>
  14#include <mmc.h>
  15#include <netdev.h>
  16#include <samsung-usb-phy-uboot.h>
  17#include <spi.h>
  18#include <usb.h>
  19#include <video_bridge.h>
  20#include <asm/gpio.h>
  21#include <asm/arch/cpu.h>
  22#include <asm/arch/dwmmc.h>
  23#include <asm/arch/mmc.h>
  24#include <asm/arch/pinmux.h>
  25#include <asm/arch/power.h>
  26#include <asm/arch/sromc.h>
  27#include <power/pmic.h>
  28#include <power/max77686_pmic.h>
  29#include <power/regulator.h>
  30#include <power/s2mps11.h>
  31#include <power/s5m8767.h>
  32#include <samsung/exynos5-dt-types.h>
  33#include <samsung/misc.h>
  34#include <tmu.h>
  35
  36DECLARE_GLOBAL_DATA_PTR;
  37
  38static void board_enable_audio_codec(void)
  39{
  40        int node, ret;
  41        struct gpio_desc en_gpio;
  42
  43        node = fdtdec_next_compatible(gd->fdt_blob, 0,
  44                COMPAT_SAMSUNG_EXYNOS5_SOUND);
  45        if (node <= 0)
  46                return;
  47
  48        ret = gpio_request_by_name_nodev(gd->fdt_blob, node,
  49                                         "codec-enable-gpio", 0, &en_gpio,
  50                                         GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
  51        if (ret == -FDT_ERR_NOTFOUND)
  52                return;
  53
  54        /* Turn on the GPIO which connects to the codec's "enable" line. */
  55        gpio_set_pull(gpio_get_number(&en_gpio), S5P_GPIO_PULL_NONE);
  56
  57#ifdef CONFIG_SOUND_MAX98095
  58        /* Enable MAX98095 Codec */
  59        gpio_request(EXYNOS5_GPIO_X17, "max98095_enable");
  60        gpio_direction_output(EXYNOS5_GPIO_X17, 1);
  61        gpio_set_pull(EXYNOS5_GPIO_X17, S5P_GPIO_PULL_NONE);
  62#endif
  63}
  64
  65int exynos_init(void)
  66{
  67        board_enable_audio_codec();
  68
  69        return 0;
  70}
  71
  72static int exynos_set_regulator(const char *name, uint uv)
  73{
  74        struct udevice *dev;
  75        int ret;
  76
  77        ret = regulator_get_by_platname(name, &dev);
  78        if (ret) {
  79                debug("%s: Cannot find regulator %s\n", __func__, name);
  80                return ret;
  81        }
  82        ret = regulator_set_value(dev, uv);
  83        if (ret) {
  84                debug("%s: Cannot set regulator %s\n", __func__, name);
  85                return ret;
  86        }
  87
  88        return 0;
  89}
  90
  91int exynos_power_init(void)
  92{
  93        struct udevice *dev;
  94        int ret;
  95
  96        ret = pmic_get("max77686", &dev);
  97        if (!ret) {
  98                /* TODO(sjg@chromium.org): Move into the clock/pmic API */
  99                ret = pmic_clrsetbits(dev, MAX77686_REG_PMIC_32KHZ, 0,
 100                                MAX77686_32KHCP_EN);
 101                if (ret)
 102                        return ret;
 103                ret = pmic_clrsetbits(dev, MAX77686_REG_PMIC_BBAT, 0,
 104                                MAX77686_BBCHOSTEN | MAX77686_BBCVS_3_5V);
 105                if (ret)
 106                        return ret;
 107        } else {
 108                ret = pmic_get("s5m8767-pmic", &dev);
 109                /* TODO(sjg@chromium.org): Use driver model to access clock */
 110#ifdef CONFIG_PMIC_S5M8767
 111                if (!ret)
 112                        s5m8767_enable_32khz_cp(dev);
 113#endif
 114        }
 115        if (ret == -ENODEV)
 116                return 0;
 117
 118        ret = regulators_enable_boot_on(false);
 119        if (ret)
 120                return ret;
 121
 122        ret = exynos_set_regulator("vdd_mif", 1100000);
 123        if (ret)
 124                return ret;
 125
 126        ret = exynos_set_regulator("vdd_arm", 1300000);
 127        if (ret)
 128                return ret;
 129        ret = exynos_set_regulator("vdd_int", 1012500);
 130        if (ret)
 131                return ret;
 132        ret = exynos_set_regulator("vdd_g3d", 1200000);
 133        if (ret)
 134                return ret;
 135
 136        return 0;
 137}
 138
 139int board_get_revision(void)
 140{
 141        return 0;
 142}
 143
 144#ifdef CONFIG_USB_DWC3
 145static struct dwc3_device dwc3_device_data = {
 146        .maximum_speed = USB_SPEED_SUPER,
 147        .base = 0x12400000,
 148        .dr_mode = USB_DR_MODE_PERIPHERAL,
 149        .index = 0,
 150};
 151
 152int usb_gadget_handle_interrupts(void)
 153{
 154        dwc3_uboot_handle_interrupt(0);
 155        return 0;
 156}
 157
 158int board_usb_init(int index, enum usb_init_type init)
 159{
 160        struct exynos_usb3_phy *phy = (struct exynos_usb3_phy *)
 161                samsung_get_base_usb3_phy();
 162
 163        if (!phy) {
 164                error("usb3 phy not supported");
 165                return -ENODEV;
 166        }
 167
 168        set_usbdrd_phy_ctrl(POWER_USB_DRD_PHY_CTRL_EN);
 169        exynos5_usb3_phy_init(phy);
 170
 171        return dwc3_uboot_init(&dwc3_device_data);
 172}
 173#endif
 174#ifdef CONFIG_SET_DFU_ALT_INFO
 175char *get_dfu_alt_system(char *interface, char *devstr)
 176{
 177        char *info = "Not supported!";
 178
 179        if (board_is_odroidxu4())
 180                return info;
 181
 182        return getenv("dfu_alt_system");
 183}
 184
 185char *get_dfu_alt_boot(char *interface, char *devstr)
 186{
 187        char *info = "Not supported!";
 188        struct mmc *mmc;
 189        char *alt_boot;
 190        int dev_num;
 191
 192        if (board_is_odroidxu4())
 193                return info;
 194
 195        dev_num = simple_strtoul(devstr, NULL, 10);
 196
 197        mmc = find_mmc_device(dev_num);
 198        if (!mmc)
 199                return NULL;
 200
 201        if (mmc_init(mmc))
 202                return NULL;
 203
 204        if (IS_SD(mmc))
 205                alt_boot = CONFIG_DFU_ALT_BOOT_SD;
 206        else
 207                alt_boot = CONFIG_DFU_ALT_BOOT_EMMC;
 208
 209        return alt_boot;
 210}
 211#endif
 212