1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (c) 2013 Samsung Electronics Co., Ltd. All rights reserved.
4 * Sanghee Kim <sh0130.kim@samsung.com>
5 * Piotr Wilczek <p.wilczek@samsung.com>
12 #include <asm/arch/pinmux.h>
13 #include <asm/arch/power.h>
14 #include <asm/arch/mipi_dsim.h>
15 #include <linux/delay.h>
16 #include <power/pmic.h>
17 #include <power/max77686_pmic.h>
18 #include <power/battery.h>
19 #include <power/max77693_pmic.h>
20 #include <power/max77693_muic.h>
21 #include <power/max77693_fg.h>
25 #include <usb/dwc2_udc.h>
26 #include <usb_mass_storage.h>
28 static unsigned int board_rev = -1;
30 static inline u32 get_model_rev(void);
32 static void check_hw_revision(void)
39 * GPM1[1:0]: MODEL_REV[1:0]
40 * Don't set as pull-none for these N/C pin.
41 * TRM say that it may cause unexcepted state and leakage current.
42 * and pull-none is only for output function.
44 for (i = 0; i < 2; i++) {
45 int pin = i + EXYNOS4X12_GPIO_M10;
47 sprintf(str, "model_rev%d", i);
48 gpio_request(pin, str);
49 gpio_cfg_pin(pin, S5P_GPIO_INPUT);
52 /* GPM1[5:2]: HW_REV[3:0] */
53 for (i = 0; i < 4; i++) {
54 int pin = i + EXYNOS4X12_GPIO_M12;
56 sprintf(str, "hw_rev%d", i);
57 gpio_request(pin, str);
58 gpio_cfg_pin(pin, S5P_GPIO_INPUT);
59 gpio_set_pull(pin, S5P_GPIO_PULL_NONE);
62 /* GPM1[1:0]: MODEL_REV[1:0] */
63 for (i = 0; i < 2; i++)
64 modelrev |= (gpio_get_value(EXYNOS4X12_GPIO_M10 + i) << i);
66 /* board_rev[15:8] = model */
67 board_rev = modelrev << 8;
70 #ifdef CONFIG_REVISION_TAG
71 u32 get_board_rev(void)
77 static inline u32 get_model_rev(void)
79 return (board_rev >> 8) & 0xff;
82 static void board_external_gpio_init(void)
85 * some pins which in alive block are connected with external pull-up
86 * but it's default setting is pull-down.
87 * if that pin set as input then that floated
90 gpio_set_pull(EXYNOS4X12_GPIO_X02, S5P_GPIO_PULL_NONE); /* PS_ALS_INT */
91 gpio_set_pull(EXYNOS4X12_GPIO_X04, S5P_GPIO_PULL_NONE); /* TSP_nINT */
92 gpio_set_pull(EXYNOS4X12_GPIO_X07, S5P_GPIO_PULL_NONE); /* AP_PMIC_IRQ*/
93 gpio_set_pull(EXYNOS4X12_GPIO_X15, S5P_GPIO_PULL_NONE); /* IF_PMIC_IRQ*/
94 gpio_set_pull(EXYNOS4X12_GPIO_X20, S5P_GPIO_PULL_NONE); /* VOL_UP */
95 gpio_set_pull(EXYNOS4X12_GPIO_X21, S5P_GPIO_PULL_NONE); /* VOL_DOWN */
96 gpio_set_pull(EXYNOS4X12_GPIO_X23, S5P_GPIO_PULL_NONE); /* FUEL_ALERT */
97 gpio_set_pull(EXYNOS4X12_GPIO_X24, S5P_GPIO_PULL_NONE); /* ADC_INT */
98 gpio_set_pull(EXYNOS4X12_GPIO_X27, S5P_GPIO_PULL_NONE); /* nPOWER */
99 gpio_set_pull(EXYNOS4X12_GPIO_X30, S5P_GPIO_PULL_NONE); /* WPC_INT */
100 gpio_set_pull(EXYNOS4X12_GPIO_X35, S5P_GPIO_PULL_NONE); /* OK_KEY */
101 gpio_set_pull(EXYNOS4X12_GPIO_X37, S5P_GPIO_PULL_NONE); /* HDMI_HPD */
104 int exynos_early_init_f(void)
106 board_external_gpio_init();
111 int exynos_init(void)
113 struct exynos4_power *pwr =
114 (struct exynos4_power *)samsung_get_base_power();
117 printf("HW Revision:\t0x%04x\n", board_rev);
120 * First bootloader on the TRATS2 platform uses
121 * INFORM4 and INFORM5 registers for recovery
123 * To indicate correct boot chain - those two
124 * registers must be cleared out
126 writel(0, &pwr->inform4);
127 writel(0, &pwr->inform5);
132 int exynos_power_init(void)
134 #if !CONFIG_IS_ENABLED(DM_I2C) /* TODO(maintainer): Convert to driver model */
136 struct power_battery *pb;
137 struct pmic *p_chrg, *p_muic, *p_fg, *p_bat;
139 pmic_init_max77693(I2C_10); /* I2C adapter 10 - bus name soft1 */
140 power_muic_init(I2C_10); /* I2C adapter 10 - bus name soft1 */
141 power_fg_init(I2C_9); /* I2C adapter 9 - bus name soft0 */
144 p_chrg = pmic_get("MAX77693_PMIC");
146 puts("MAX77693_PMIC: Not found\n");
150 p_muic = pmic_get("MAX77693_MUIC");
152 puts("MAX77693_MUIC: Not found\n");
156 p_fg = pmic_get("MAX77693_FG");
158 puts("MAX17042_FG: Not found\n");
162 if (p_chrg->chrg->chrg_bat_present(p_chrg) == 0)
163 puts("No battery detected\n");
165 p_bat = pmic_get("BAT_TRATS2");
167 puts("BAT_TRATS2: Not found\n");
171 p_fg->parent = p_bat;
172 p_chrg->parent = p_bat;
173 p_muic->parent = p_bat;
175 p_bat->pbat->battery_init(p_bat, p_fg, p_chrg, p_muic);
178 chrg = p_muic->chrg->chrg_type(p_muic);
179 debug("CHARGER TYPE: %d\n", chrg);
181 if (!p_chrg->chrg->chrg_bat_present(p_chrg)) {
182 puts("No battery detected\n");
186 p_fg->fg->fg_battery_check(p_fg, p_bat);
188 if (pb->bat->state == CHARGE && chrg == CHARGER_USB)
189 puts("CHARGE Battery !\n");
194 #ifdef CONFIG_USB_GADGET
195 static int s5pc210_phy_control(int on)
197 #if !CONFIG_IS_ENABLED(DM_I2C) /* TODO(maintainer): Convert to driver model */
200 struct pmic *p, *p_pmic, *p_muic;
202 p_pmic = pmic_get("MAX77686_PMIC");
206 if (pmic_probe(p_pmic))
209 p_muic = pmic_get("MAX77693_MUIC");
213 if (pmic_probe(p_muic))
217 ret = max77686_set_ldo_mode(p_pmic, 12, OPMODE_ON);
221 p = pmic_get("MAX77693_PMIC");
229 ret = pmic_reg_read(p, MAX77693_SAFEOUT, &val);
233 val |= MAX77693_ENSAFEOUT1;
234 ret = pmic_reg_write(p, MAX77693_SAFEOUT, val);
239 ret = pmic_reg_write(p_muic, MAX77693_MUIC_CONTROL1,
240 MAX77693_MUIC_CTRL1_DN1DP2);
243 ret = max77686_set_ldo_mode(p_pmic, 12, OPMODE_LPM);
248 ret = pmic_reg_write(p_muic, MAX77693_MUIC_CONTROL1,
249 MAX77693_MUIC_CTRL1_UT1UR2);
258 struct dwc2_plat_otg_data s5pc210_otg_data = {
259 .phy_control = s5pc210_phy_control,
260 .regs_phy = EXYNOS4X12_USBPHY_BASE,
261 .regs_otg = EXYNOS4X12_USBOTG_BASE,
262 .usb_phy_ctrl = EXYNOS4X12_USBPHY_CONTROL,
263 .usb_flags = PHY0_SLEEP,
266 int board_usb_init(int index, enum usb_init_type init)
268 debug("USB_udc_probe\n");
269 return dwc2_udc_probe(&s5pc210_otg_data);
272 int g_dnl_board_usb_cable_connected(void)
274 #if !CONFIG_IS_ENABLED(DM_I2C) /* TODO(maintainer): Convert to driver model */
275 struct pmic *muic = pmic_get("MAX77693_MUIC");
279 return !!muic->chrg->chrg_type(muic);
293 #if !CONFIG_IS_ENABLED(DM_I2C) /* TODO(maintainer): Convert to driver model */
294 struct pmic *p = pmic_get("MAX77686_PMIC");
296 /* LDO8 VMIPI_1.0V_AP */
297 max77686_set_ldo_mode(p, 8, OPMODE_ON);
298 /* LDO10 VMIPI_1.8V_AP */
299 max77686_set_ldo_mode(p, 10, OPMODE_ON);