1 // SPDX-License-Identifier: GPL-2.0+
2 /*
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>
6 */
7
8 #include <common.h>
9 #include <lcd.h>
10 #include <log.h>
11 #include <asm/gpio.h>
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>
22 #include <libtizen.h>
23 #include <errno.h>
24 #include <usb.h>
25 #include <usb/dwc2_udc.h>
26 #include <usb_mass_storage.h>
27
28 static unsigned int board_rev = -1;
29
30 static inline u32 get_model_rev(void);
31
check_hw_revision(void)32 static void check_hw_revision(void)
33 {
34 int modelrev = 0;
35 char str[12];
36 int i;
37
38 /*
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.
43 */
44 for (i = 0; i < 2; i++) {
45 int pin = i + EXYNOS4X12_GPIO_M10;
46
47 sprintf(str, "model_rev%d", i);
48 gpio_request(pin, str);
49 gpio_cfg_pin(pin, S5P_GPIO_INPUT);
50 }
51
52 /* GPM1[5:2]: HW_REV[3:0] */
53 for (i = 0; i < 4; i++) {
54 int pin = i + EXYNOS4X12_GPIO_M12;
55
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);
60 }
61
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);
65
66 /* board_rev[15:8] = model */
67 board_rev = modelrev << 8;
68 }
69
70 #ifdef CONFIG_REVISION_TAG
get_board_rev(void)71 u32 get_board_rev(void)
72 {
73 return board_rev;
74 }
75 #endif
76
get_model_rev(void)77 static inline u32 get_model_rev(void)
78 {
79 return (board_rev >> 8) & 0xff;
80 }
81
board_external_gpio_init(void)82 static void board_external_gpio_init(void)
83 {
84 /*
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
88 */
89
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 */
102 }
103
exynos_early_init_f(void)104 int exynos_early_init_f(void)
105 {
106 board_external_gpio_init();
107
108 return 0;
109 }
110
exynos_init(void)111 int exynos_init(void)
112 {
113 struct exynos4_power *pwr =
114 (struct exynos4_power *)samsung_get_base_power();
115
116 check_hw_revision();
117 printf("HW Revision:\t0x%04x\n", board_rev);
118
119 /*
120 * First bootloader on the TRATS2 platform uses
121 * INFORM4 and INFORM5 registers for recovery
122 *
123 * To indicate correct boot chain - those two
124 * registers must be cleared out
125 */
126 writel(0, &pwr->inform4);
127 writel(0, &pwr->inform5);
128
129 return 0;
130 }
131
exynos_power_init(void)132 int exynos_power_init(void)
133 {
134 #if !CONFIG_IS_ENABLED(DM_I2C) /* TODO(maintainer): Convert to driver model */
135 int chrg;
136 struct power_battery *pb;
137 struct pmic *p_chrg, *p_muic, *p_fg, *p_bat;
138
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 */
142 power_bat_init(0);
143
144 p_chrg = pmic_get("MAX77693_PMIC");
145 if (!p_chrg) {
146 puts("MAX77693_PMIC: Not found\n");
147 return -ENODEV;
148 }
149
150 p_muic = pmic_get("MAX77693_MUIC");
151 if (!p_muic) {
152 puts("MAX77693_MUIC: Not found\n");
153 return -ENODEV;
154 }
155
156 p_fg = pmic_get("MAX77693_FG");
157 if (!p_fg) {
158 puts("MAX17042_FG: Not found\n");
159 return -ENODEV;
160 }
161
162 if (p_chrg->chrg->chrg_bat_present(p_chrg) == 0)
163 puts("No battery detected\n");
164
165 p_bat = pmic_get("BAT_TRATS2");
166 if (!p_bat) {
167 puts("BAT_TRATS2: Not found\n");
168 return -ENODEV;
169 }
170
171 p_fg->parent = p_bat;
172 p_chrg->parent = p_bat;
173 p_muic->parent = p_bat;
174
175 p_bat->pbat->battery_init(p_bat, p_fg, p_chrg, p_muic);
176
177 pb = p_bat->pbat;
178 chrg = p_muic->chrg->chrg_type(p_muic);
179 debug("CHARGER TYPE: %d\n", chrg);
180
181 if (!p_chrg->chrg->chrg_bat_present(p_chrg)) {
182 puts("No battery detected\n");
183 return 0;
184 }
185
186 p_fg->fg->fg_battery_check(p_fg, p_bat);
187
188 if (pb->bat->state == CHARGE && chrg == CHARGER_USB)
189 puts("CHARGE Battery !\n");
190 #endif
191 return 0;
192 }
193
194 #ifdef CONFIG_USB_GADGET
s5pc210_phy_control(int on)195 static int s5pc210_phy_control(int on)
196 {
197 #if !CONFIG_IS_ENABLED(DM_I2C) /* TODO(maintainer): Convert to driver model */
198 int ret = 0;
199 unsigned int val;
200 struct pmic *p, *p_pmic, *p_muic;
201
202 p_pmic = pmic_get("MAX77686_PMIC");
203 if (!p_pmic)
204 return -ENODEV;
205
206 if (pmic_probe(p_pmic))
207 return -1;
208
209 p_muic = pmic_get("MAX77693_MUIC");
210 if (!p_muic)
211 return -ENODEV;
212
213 if (pmic_probe(p_muic))
214 return -1;
215
216 if (on) {
217 ret = max77686_set_ldo_mode(p_pmic, 12, OPMODE_ON);
218 if (ret)
219 return -1;
220
221 p = pmic_get("MAX77693_PMIC");
222 if (!p)
223 return -ENODEV;
224
225 if (pmic_probe(p))
226 return -1;
227
228 /* SAFEOUT */
229 ret = pmic_reg_read(p, MAX77693_SAFEOUT, &val);
230 if (ret)
231 return -1;
232
233 val |= MAX77693_ENSAFEOUT1;
234 ret = pmic_reg_write(p, MAX77693_SAFEOUT, val);
235 if (ret)
236 return -1;
237
238 /* PATH: USB */
239 ret = pmic_reg_write(p_muic, MAX77693_MUIC_CONTROL1,
240 MAX77693_MUIC_CTRL1_DN1DP2);
241
242 } else {
243 ret = max77686_set_ldo_mode(p_pmic, 12, OPMODE_LPM);
244 if (ret)
245 return -1;
246
247 /* PATH: UART */
248 ret = pmic_reg_write(p_muic, MAX77693_MUIC_CONTROL1,
249 MAX77693_MUIC_CTRL1_UT1UR2);
250 }
251
252 if (ret)
253 return -1;
254 #endif
255 return 0;
256 }
257
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,
264 };
265
board_usb_init(int index,enum usb_init_type init)266 int board_usb_init(int index, enum usb_init_type init)
267 {
268 debug("USB_udc_probe\n");
269 return dwc2_udc_probe(&s5pc210_otg_data);
270 }
271
g_dnl_board_usb_cable_connected(void)272 int g_dnl_board_usb_cable_connected(void)
273 {
274 #if !CONFIG_IS_ENABLED(DM_I2C) /* TODO(maintainer): Convert to driver model */
275 struct pmic *muic = pmic_get("MAX77693_MUIC");
276 if (!muic)
277 return 0;
278
279 return !!muic->chrg->chrg_type(muic);
280 #else
281 return false;
282 #endif
283 }
284 #endif
285
286 /*
287 * LCD
288 */
289
290 #ifdef CONFIG_LCD
mipi_power(void)291 int mipi_power(void)
292 {
293 #if !CONFIG_IS_ENABLED(DM_I2C) /* TODO(maintainer): Convert to driver model */
294 struct pmic *p = pmic_get("MAX77686_PMIC");
295
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);
300 #endif
301
302 return 0;
303 }
304
exynos_lcd_power_on(void)305 void exynos_lcd_power_on(void)
306 {
307 #if !CONFIG_IS_ENABLED(DM_I2C) /* TODO(maintainer): Convert to driver model */
308 struct pmic *p = pmic_get("MAX77686_PMIC");
309
310 /* LCD_2.2V_EN: GPC0[1] */
311 gpio_request(EXYNOS4X12_GPIO_C01, "lcd_2v2_en");
312 gpio_set_pull(EXYNOS4X12_GPIO_C01, S5P_GPIO_PULL_UP);
313 gpio_direction_output(EXYNOS4X12_GPIO_C01, 1);
314
315 /* LDO25 VCC_3.1V_LCD */
316 pmic_probe(p);
317 max77686_set_ldo_voltage(p, 25, 3100000);
318 max77686_set_ldo_mode(p, 25, OPMODE_LPM);
319 #endif
320 }
321
exynos_reset_lcd(void)322 void exynos_reset_lcd(void)
323 {
324 /* reset lcd */
325 gpio_request(EXYNOS4X12_GPIO_F21, "lcd_reset");
326 gpio_direction_output(EXYNOS4X12_GPIO_F21, 0);
327 udelay(10);
328 gpio_set_value(EXYNOS4X12_GPIO_F21, 1);
329 }
330
exynos_lcd_misc_init(vidinfo_t * vid)331 void exynos_lcd_misc_init(vidinfo_t *vid)
332 {
333 #ifdef CONFIG_TIZEN
334 get_tizen_logo_info(vid);
335 #endif
336 #ifdef CONFIG_S6E8AX0
337 s6e8ax0_init();
338 #endif
339 }
340 #endif /* LCD */
341