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 int exynos_init(void)
38 {
39 	return 0;
40 }
41 
42 static int exynos_set_regulator(const char *name, uint uv)
43 {
44 	struct udevice *dev;
45 	int ret;
46 
47 	ret = regulator_get_by_platname(name, &dev);
48 	if (ret) {
49 		debug("%s: Cannot find regulator %s\n", __func__, name);
50 		return ret;
51 	}
52 	ret = regulator_set_value(dev, uv);
53 	if (ret) {
54 		debug("%s: Cannot set regulator %s\n", __func__, name);
55 		return ret;
56 	}
57 
58 	return 0;
59 }
60 
61 int exynos_power_init(void)
62 {
63 	struct udevice *dev;
64 	int ret;
65 
66 #ifdef CONFIG_PMIC_S2MPS11
67 	ret = pmic_get("s2mps11_pmic", &dev);
68 #else
69 	ret = pmic_get("max77686", &dev);
70 	if (!ret) {
71 		/* TODO(sjg@chromium.org): Move into the clock/pmic API */
72 		ret = pmic_clrsetbits(dev, MAX77686_REG_PMIC_32KHZ, 0,
73 				MAX77686_32KHCP_EN);
74 		if (ret)
75 			return ret;
76 		ret = pmic_clrsetbits(dev, MAX77686_REG_PMIC_BBAT, 0,
77 				MAX77686_BBCHOSTEN | MAX77686_BBCVS_3_5V);
78 		if (ret)
79 			return ret;
80 	} else {
81 		ret = pmic_get("s5m8767-pmic", &dev);
82 		/* TODO(sjg@chromium.org): Use driver model to access clock */
83 #ifdef CONFIG_PMIC_S5M8767
84 		if (!ret)
85 			s5m8767_enable_32khz_cp(dev);
86 #endif
87 	}
88 #endif	/* CONFIG_PMIC_S2MPS11 */
89 	if (ret == -ENODEV)
90 		return 0;
91 
92 	ret = regulators_enable_boot_on(false);
93 	if (ret)
94 		return ret;
95 
96 	ret = exynos_set_regulator("vdd_mif", 1100000);
97 	if (ret)
98 		return ret;
99 
100 	ret = exynos_set_regulator("vdd_arm", 1300000);
101 	if (ret)
102 		return ret;
103 	ret = exynos_set_regulator("vdd_int", 1012500);
104 	if (ret)
105 		return ret;
106 	ret = exynos_set_regulator("vdd_g3d", 1200000);
107 	if (ret)
108 		return ret;
109 
110 	return 0;
111 }
112 
113 int board_get_revision(void)
114 {
115 	return 0;
116 }
117 
118 #ifdef CONFIG_USB_DWC3
119 static struct dwc3_device dwc3_device_data = {
120 	.maximum_speed = USB_SPEED_SUPER,
121 	.base = 0x12400000,
122 	.dr_mode = USB_DR_MODE_PERIPHERAL,
123 	.index = 0,
124 };
125 
126 int usb_gadget_handle_interrupts(void)
127 {
128 	dwc3_uboot_handle_interrupt(0);
129 	return 0;
130 }
131 
132 int board_usb_init(int index, enum usb_init_type init)
133 {
134 	struct exynos_usb3_phy *phy = (struct exynos_usb3_phy *)
135 		samsung_get_base_usb3_phy();
136 
137 	if (!phy) {
138 		pr_err("usb3 phy not supported\n");
139 		return -ENODEV;
140 	}
141 
142 	set_usbdrd_phy_ctrl(POWER_USB_DRD_PHY_CTRL_EN);
143 	exynos5_usb3_phy_init(phy);
144 
145 	return dwc3_uboot_init(&dwc3_device_data);
146 }
147 #endif
148 #ifdef CONFIG_SET_DFU_ALT_INFO
149 char *get_dfu_alt_system(char *interface, char *devstr)
150 {
151 	char *info = "Not supported!";
152 
153 	if (board_is_odroidxu4() || board_is_odroidhc1() || board_is_odroidhc2())
154 		return info;
155 
156 	return env_get("dfu_alt_system");
157 }
158 
159 char *get_dfu_alt_boot(char *interface, char *devstr)
160 {
161 	char *info = "Not supported!";
162 	struct mmc *mmc;
163 	char *alt_boot;
164 	int dev_num;
165 
166 	if (board_is_odroidxu4() || board_is_odroidhc1() || board_is_odroidhc2())
167 		return info;
168 
169 	dev_num = simple_strtoul(devstr, NULL, 10);
170 
171 	mmc = find_mmc_device(dev_num);
172 	if (!mmc)
173 		return NULL;
174 
175 	if (mmc_init(mmc))
176 		return NULL;
177 
178 	if (IS_SD(mmc))
179 		alt_boot = CONFIG_DFU_ALT_BOOT_SD;
180 	else
181 		alt_boot = CONFIG_DFU_ALT_BOOT_EMMC;
182 
183 	return alt_boot;
184 }
185 #endif
186