2 * Copyright (C) 2012 Samsung Electronics
4 * SPDX-License-Identifier: GPL-2.0+
9 #include <dwc3-uboot.h>
16 #include <samsung-usb-phy-uboot.h>
19 #include <video_bridge.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>
36 DECLARE_GLOBAL_DATA_PTR;
38 static void board_enable_audio_codec(void)
41 struct gpio_desc en_gpio;
43 node = fdtdec_next_compatible(gd->fdt_blob, 0,
44 COMPAT_SAMSUNG_EXYNOS5_SOUND);
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)
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);
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);
67 board_enable_audio_codec();
72 static int exynos_set_regulator(const char *name, uint uv)
77 ret = regulator_get_by_platname(name, &dev);
79 debug("%s: Cannot find regulator %s\n", __func__, name);
82 ret = regulator_set_value(dev, uv);
84 debug("%s: Cannot set regulator %s\n", __func__, name);
91 int exynos_power_init(void)
96 ret = pmic_get("max77686", &dev);
98 /* TODO(sjg@chromium.org): Move into the clock/pmic API */
99 ret = pmic_clrsetbits(dev, MAX77686_REG_PMIC_32KHZ, 0,
103 ret = pmic_clrsetbits(dev, MAX77686_REG_PMIC_BBAT, 0,
104 MAX77686_BBCHOSTEN | MAX77686_BBCVS_3_5V);
108 ret = pmic_get("s5m8767-pmic", &dev);
109 /* TODO(sjg@chromium.org): Use driver model to access clock */
110 #ifdef CONFIG_PMIC_S5M8767
112 s5m8767_enable_32khz_cp(dev);
118 ret = regulators_enable_boot_on(false);
122 ret = exynos_set_regulator("vdd_mif", 1100000);
127 * This would normally be 1.3V, but since we are running slowly 1.1V
128 * is enough. For spring it helps reduce CPU temperature and avoid
129 * hangs with the case open. 1.1V is minimum voltage borderline for
130 * chained bootloaders.
132 ret = exynos_set_regulator("vdd_arm", 1100000);
135 ret = exynos_set_regulator("vdd_int", 1012500);
138 ret = exynos_set_regulator("vdd_g3d", 1200000);
145 int board_get_revision(void)
150 #ifdef CONFIG_USB_DWC3
151 static struct dwc3_device dwc3_device_data = {
152 .maximum_speed = USB_SPEED_SUPER,
154 .dr_mode = USB_DR_MODE_PERIPHERAL,
158 int usb_gadget_handle_interrupts(void)
160 dwc3_uboot_handle_interrupt(0);
164 int board_usb_init(int index, enum usb_init_type init)
166 struct exynos_usb3_phy *phy = (struct exynos_usb3_phy *)
167 samsung_get_base_usb3_phy();
170 error("usb3 phy not supported");
174 set_usbdrd_phy_ctrl(POWER_USB_DRD_PHY_CTRL_EN);
175 exynos5_usb3_phy_init(phy);
177 return dwc3_uboot_init(&dwc3_device_data);
180 #ifdef CONFIG_SET_DFU_ALT_INFO
181 char *get_dfu_alt_system(char *interface, char *devstr)
183 char *info = "Not supported!";
185 if (board_is_odroidxu4())
188 return getenv("dfu_alt_system");
191 char *get_dfu_alt_boot(char *interface, char *devstr)
193 char *info = "Not supported!";
198 if (board_is_odroidxu4())
201 dev_num = simple_strtoul(devstr, NULL, 10);
203 mmc = find_mmc_device(dev_num);
211 alt_boot = CONFIG_DFU_ALT_BOOT_SD;
213 alt_boot = CONFIG_DFU_ALT_BOOT_EMMC;