board/samsung/common/exynos5-dt.c

   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
  36 DECLARE_GLOBAL_DATA_PTR;
  37
  38 static 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(offset_to_ofnode(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
  65 int exynos_init(void)
  66 {
  67         board_enable_audio_codec();
  68
  69         return 0;
  70 }
  71
  72 static 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
  91 int 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
 139 int board_get_revision(void)
 140 {
 141         return 0;
 142 }
 143
 144 #ifdef CONFIG_USB_DWC3
 145 static 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
 152 int usb_gadget_handle_interrupts(void)
 153 {
 154         dwc3_uboot_handle_interrupt(0);
 155         return 0;
 156 }
 157
 158 int 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                 pr_err("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
 175 char *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 env_get("dfu_alt_system");
 183 }
 184
 185 char *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