text: /*
   * Copyright (C) 2012 Samsung Electronics
   *
   * SPDX-License-Identifier:	GPL-2.0+
   */
  
  #include <common.h>
  #include <dm.h>
  #include <dwc3-uboot.h>
  #include <fdtdec.h>
  #include <asm/io.h>
  #include <errno.h>
  #include <i2c.h>
  #include <mmc.h>
  #include <netdev.h>
  #include <samsung-usb-phy-uboot.h>
  #include <spi.h>
  #include <usb.h>
  #include <video_bridge.h>
  #include <asm/gpio.h>
  #include <asm/arch/cpu.h>
  #include <asm/arch/dwmmc.h>
  #include <asm/arch/mmc.h>
  #include <asm/arch/pinmux.h>
  #include <asm/arch/power.h>
  #include <asm/arch/sromc.h>
  #include <power/pmic.h>
  #include <power/max77686_pmic.h>
  #include <power/regulator.h>
  #include <power/s2mps11.h>
  #include <power/s5m8767.h>
  #include <samsung/exynos5-dt-types.h>
  #include <samsung/misc.h>
  #include <tmu.h>
  
  DECLARE_GLOBAL_DATA_PTR;
  
  static void board_enable_audio_codec(void)
  {
  	int node, ret;
  	struct gpio_desc en_gpio;
  
  	node = fdtdec_next_compatible(gd->fdt_blob, 0,
  		COMPAT_SAMSUNG_EXYNOS5_SOUND);
  	if (node <= 0)
  		return;
  
  	ret = gpio_request_by_name_nodev(offset_to_ofnode(node),
  					 "codec-enable-gpio", 0, &en_gpio,
  					 GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
  	if (ret == -FDT_ERR_NOTFOUND)
  		return;
  
  	/* Turn on the GPIO which connects to the codec's "enable" line. */
  	gpio_set_pull(gpio_get_number(&en_gpio), S5P_GPIO_PULL_NONE);
  
  #ifdef CONFIG_SOUND_MAX98095
  	/* Enable MAX98095 Codec */
  	gpio_request(EXYNOS5_GPIO_X17, "max98095_enable");
  	gpio_direction_output(EXYNOS5_GPIO_X17, 1);
  	gpio_set_pull(EXYNOS5_GPIO_X17, S5P_GPIO_PULL_NONE);
  #endif
  }
  
  int exynos_init(void)
  {
  	board_enable_audio_codec();
  
  	return 0;
  }
  
  static int exynos_set_regulator(const char *name, uint uv)
  {
  	struct udevice *dev;
  	int ret;
  
  	ret = regulator_get_by_platname(name, &dev);
  	if (ret) {
  		debug("%s: Cannot find regulator %s\n", __func__, name);
  		return ret;
  	}
  	ret = regulator_set_value(dev, uv);
  	if (ret) {
  		debug("%s: Cannot set regulator %s\n", __func__, name);
  		return ret;
  	}
  
  	return 0;
  }
  
  int exynos_power_init(void)
  {
  	struct udevice *dev;
  	int ret;
  
  	ret = pmic_get("max77686", &dev);
  	if (!ret) {
  		/* TODO(sjg@chromium.org): Move into the clock/pmic API */
  		ret = pmic_clrsetbits(dev, MAX77686_REG_PMIC_32KHZ, 0,
  				MAX77686_32KHCP_EN);
  		if (ret)
  			return ret;
  		ret = pmic_clrsetbits(dev, MAX77686_REG_PMIC_BBAT, 0,
  				MAX77686_BBCHOSTEN | MAX77686_BBCVS_3_5V);
  		if (ret)
  			return ret;
  	} else {
  		ret = pmic_get("s5m8767-pmic", &dev);
  		/* TODO(sjg@chromium.org): Use driver model to access clock */
  #ifdef CONFIG_PMIC_S5M8767
  		if (!ret)
  			s5m8767_enable_32khz_cp(dev);
  #endif
  	}
  	if (ret == -ENODEV)
  		return 0;
  
  	ret = regulators_enable_boot_on(false);
  	if (ret)
  		return ret;
  
  	ret = exynos_set_regulator("vdd_mif", 1100000);
  	if (ret)
  		return ret;
  
  	ret = exynos_set_regulator("vdd_arm", 1300000);
  	if (ret)
  		return ret;
  	ret = exynos_set_regulator("vdd_int", 1012500);
  	if (ret)
  		return ret;
  	ret = exynos_set_regulator("vdd_g3d", 1200000);
  	if (ret)
  		return ret;
  
  	return 0;
  }
  
  int board_get_revision(void)
  {
  	return 0;
  }
  
  #ifdef CONFIG_USB_DWC3
  static struct dwc3_device dwc3_device_data = {
  	.maximum_speed = USB_SPEED_SUPER,
  	.base = 0x12400000,
  	.dr_mode = USB_DR_MODE_PERIPHERAL,
  	.index = 0,
  };
  
  int usb_gadget_handle_interrupts(void)
  {
  	dwc3_uboot_handle_interrupt(0);
  	return 0;
  }
  
  int board_usb_init(int index, enum usb_init_type init)
  {
  	struct exynos_usb3_phy *phy = (struct exynos_usb3_phy *)
  		samsung_get_base_usb3_phy();
  
  	if (!phy) {
  		error("usb3 phy not supported");
  		return -ENODEV;
  	}
  
  	set_usbdrd_phy_ctrl(POWER_USB_DRD_PHY_CTRL_EN);
  	exynos5_usb3_phy_init(phy);
  
  	return dwc3_uboot_init(&dwc3_device_data);
  }
  #endif
  #ifdef CONFIG_SET_DFU_ALT_INFO
  char *get_dfu_alt_system(char *interface, char *devstr)
  {
  	char *info = "Not supported!";
  
  	if (board_is_odroidxu4())
  		return info;
  
  	return getenv("dfu_alt_system");
  }
  
  char *get_dfu_alt_boot(char *interface, char *devstr)
  {
  	char *info = "Not supported!";
  	struct mmc *mmc;
  	char *alt_boot;
  	int dev_num;
  
  	if (board_is_odroidxu4())
  		return info;
  
  	dev_num = simple_strtoul(devstr, NULL, 10);
  
  	mmc = find_mmc_device(dev_num);
  	if (!mmc)
  		return NULL;
  
  	if (mmc_init(mmc))
  		return NULL;
  
  	if (IS_SD(mmc))
  		alt_boot = CONFIG_DFU_ALT_BOOT_SD;
  	else
  		alt_boot = CONFIG_DFU_ALT_BOOT_EMMC;
  
  	return alt_boot;
  }
  #endif
  