board/samsung/common/exynos5-dt.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2012 Samsung Electronics
   4  */
   5
   6 #include <common.h>
   7 #include <dm.h>
   8 #include <dwc3-uboot.h>
   9 #include <fdtdec.h>
  10 #include <asm/io.h>
  11 #include <errno.h>
  12 #include <i2c.h>
  13 #include <mmc.h>
  14 #include <netdev.h>
  15 #include <samsung-usb-phy-uboot.h>
  16 #include <spi.h>
  17 #include <usb.h>
  18 #include <video_bridge.h>
  19 #include <asm/gpio.h>
  20 #include <asm/arch/cpu.h>
  21 #include <asm/arch/dwmmc.h>
  22 #include <asm/arch/mmc.h>
  23 #include <asm/arch/pinmux.h>
  24 #include <asm/arch/power.h>
  25 #include <asm/arch/sromc.h>
  26 #include <power/pmic.h>
  27 #include <power/max77686_pmic.h>
  28 #include <power/regulator.h>
  29 #include <power/s2mps11.h>
  30 #include <power/s5m8767.h>
  31 #include <samsung/exynos5-dt-types.h>
  32 #include <samsung/misc.h>
  33 #include <tmu.h>
  34
  35 DECLARE_GLOBAL_DATA_PTR;
  36
  37 static void board_enable_audio_codec(void)
  38 {
  39         int node, ret;
  40         struct gpio_desc en_gpio;
  41
  42         node = fdtdec_next_compatible(gd->fdt_blob, 0,
  43                 COMPAT_SAMSUNG_EXYNOS5_SOUND);
  44         if (node <= 0)
  45                 return;
  46
  47         ret = gpio_request_by_name_nodev(offset_to_ofnode(node),
  48                                          "codec-enable-gpio", 0, &en_gpio,
  49                                          GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
  50         if (ret == -FDT_ERR_NOTFOUND)
  51                 return;
  52
  53         /* Turn on the GPIO which connects to the codec's "enable" line. */
  54         gpio_set_pull(gpio_get_number(&en_gpio), S5P_GPIO_PULL_NONE);
  55
  56 #ifdef CONFIG_SOUND_MAX98095
  57         /* Enable MAX98095 Codec */
  58         gpio_request(EXYNOS5_GPIO_X17, "max98095_enable");
  59         gpio_direction_output(EXYNOS5_GPIO_X17, 1);
  60         gpio_set_pull(EXYNOS5_GPIO_X17, S5P_GPIO_PULL_NONE);
  61 #endif
  62 }
  63
  64 int exynos_init(void)
  65 {
  66         board_enable_audio_codec();
  67
  68         return 0;
  69 }
  70
  71 static int exynos_set_regulator(const char *name, uint uv)
  72 {
  73         struct udevice *dev;
  74         int ret;
  75
  76         ret = regulator_get_by_platname(name, &dev);
  77         if (ret) {
  78                 debug("%s: Cannot find regulator %s\n", __func__, name);
  79                 return ret;
  80         }
  81         ret = regulator_set_value(dev, uv);
  82         if (ret) {
  83                 debug("%s: Cannot set regulator %s\n", __func__, name);
  84                 return ret;
  85         }
  86
  87         return 0;
  88 }
  89
  90 int exynos_power_init(void)
  91 {
  92         struct udevice *dev;
  93         int ret;
  94
  95 #ifdef CONFIG_PMIC_S2MPS11
  96         ret = pmic_get("s2mps11_pmic", &dev);
  97 #else
  98         ret = pmic_get("max77686", &dev);
  99         if (!ret) {
 100                 /* TODO(sjg@chromium.org): Move into the clock/pmic API */
 101                 ret = pmic_clrsetbits(dev, MAX77686_REG_PMIC_32KHZ, 0,
 102                                 MAX77686_32KHCP_EN);
 103                 if (ret)
 104                         return ret;
 105                 ret = pmic_clrsetbits(dev, MAX77686_REG_PMIC_BBAT, 0,
 106                                 MAX77686_BBCHOSTEN | MAX77686_BBCVS_3_5V);
 107                 if (ret)
 108                         return ret;
 109         } else {
 110                 ret = pmic_get("s5m8767-pmic", &dev);
 111                 /* TODO(sjg@chromium.org): Use driver model to access clock */
 112 #ifdef CONFIG_PMIC_S5M8767
 113                 if (!ret)
 114                         s5m8767_enable_32khz_cp(dev);
 115 #endif
 116         }
 117 #endif  /* CONFIG_PMIC_S2MPS11 */
 118         if (ret == -ENODEV)
 119                 return 0;
 120
 121         ret = regulators_enable_boot_on(false);
 122         if (ret)
 123                 return ret;
 124
 125         ret = exynos_set_regulator("vdd_mif", 1100000);
 126         if (ret)
 127                 return ret;
 128
 129         ret = exynos_set_regulator("vdd_arm", 1300000);
 130         if (ret)
 131                 return ret;
 132         ret = exynos_set_regulator("vdd_int", 1012500);
 133         if (ret)
 134                 return ret;
 135         ret = exynos_set_regulator("vdd_g3d", 1200000);
 136         if (ret)
 137                 return ret;
 138
 139         return 0;
 140 }
 141
 142 int board_get_revision(void)
 143 {
 144         return 0;
 145 }
 146
 147 #ifdef CONFIG_USB_DWC3
 148 static struct dwc3_device dwc3_device_data = {
 149         .maximum_speed = USB_SPEED_SUPER,
 150         .base = 0x12400000,
 151         .dr_mode = USB_DR_MODE_PERIPHERAL,
 152         .index = 0,
 153 };
 154
 155 int usb_gadget_handle_interrupts(void)
 156 {
 157         dwc3_uboot_handle_interrupt(0);
 158         return 0;
 159 }
 160
 161 int board_usb_init(int index, enum usb_init_type init)
 162 {
 163         struct exynos_usb3_phy *phy = (struct exynos_usb3_phy *)
 164                 samsung_get_base_usb3_phy();
 165
 166         if (!phy) {
 167                 pr_err("usb3 phy not supported");
 168                 return -ENODEV;
 169         }
 170
 171         set_usbdrd_phy_ctrl(POWER_USB_DRD_PHY_CTRL_EN);
 172         exynos5_usb3_phy_init(phy);
 173
 174         return dwc3_uboot_init(&dwc3_device_data);
 175 }
 176 #endif
 177 #ifdef CONFIG_SET_DFU_ALT_INFO
 178 char *get_dfu_alt_system(char *interface, char *devstr)
 179 {
 180         char *info = "Not supported!";
 181
 182         if (board_is_odroidxu4() || board_is_odroidhc1())
 183                 return info;
 184
 185         return env_get("dfu_alt_system");
 186 }
 187
 188 char *get_dfu_alt_boot(char *interface, char *devstr)
 189 {
 190         char *info = "Not supported!";
 191         struct mmc *mmc;
 192         char *alt_boot;
 193         int dev_num;
 194
 195         if (board_is_odroidxu4() || board_is_odroidhc1())
 196                 return info;
 197
 198         dev_num = simple_strtoul(devstr, NULL, 10);
 199
 200         mmc = find_mmc_device(dev_num);
 201         if (!mmc)
 202                 return NULL;
 203
 204         if (mmc_init(mmc))
 205                 return NULL;
 206
 207         if (IS_SD(mmc))
 208                 alt_boot = CONFIG_DFU_ALT_BOOT_SD;
 209         else
 210                 alt_boot = CONFIG_DFU_ALT_BOOT_EMMC;
 211
 212         return alt_boot;
 213 }
 214 #endif