1 /*
2 * Copyright (c) 2013 Samsung Electronics Co., Ltd. All rights reserved.
3 * Sanghee Kim <sh0130.kim@samsung.com>
4 * Piotr Wilczek <p.wilczek@samsung.com>
5 *
6 * SPDX-License-Identifier: GPL-2.0+
7 */
8
9 #include <common.h>
10 #include <lcd.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 <power/pmic.h>
16 #include <power/max77686_pmic.h>
17 #include <power/battery.h>
18 #include <power/max77693_pmic.h>
19 #include <power/max77693_muic.h>
20 #include <power/max77693_fg.h>
21 #include <libtizen.h>
22 #include <errno.h>
23 #include <usb.h>
24 #include <usb/dwc2_udc.h>
25 #include <usb_mass_storage.h>
26
27 DECLARE_GLOBAL_DATA_PTR;
28
29 static unsigned int board_rev = -1;
30
31 static inline u32 get_model_rev(void);
32
check_hw_revision(void)33 static void check_hw_revision(void)
34 {
35 int modelrev = 0;
36 char str[12];
37 int i;
38
39 /*
40 * GPM1[1:0]: MODEL_REV[1:0]
41 * Don't set as pull-none for these N/C pin.
42 * TRM say that it may cause unexcepted state and leakage current.
43 * and pull-none is only for output function.
44 */
45 for (i = 0; i < 2; i++) {
46 int pin = i + EXYNOS4X12_GPIO_M10;
47
48 sprintf(str, "model_rev%d", i);
49 gpio_request(pin, str);
50 gpio_cfg_pin(pin, S5P_GPIO_INPUT);
51 }
52
53 /* GPM1[5:2]: HW_REV[3:0] */
54 for (i = 0; i < 4; i++) {
55 int pin = i + EXYNOS4X12_GPIO_M12;
56
57 sprintf(str, "hw_rev%d", i);
58 gpio_request(pin, str);
59 gpio_cfg_pin(pin, S5P_GPIO_INPUT);
60 gpio_set_pull(pin, S5P_GPIO_PULL_NONE);
61 }
62
63 /* GPM1[1:0]: MODEL_REV[1:0] */
64 for (i = 0; i < 2; i++)
65 modelrev |= (gpio_get_value(EXYNOS4X12_GPIO_M10 + i) << i);
66
67 /* board_rev[15:8] = model */
68 board_rev = modelrev << 8;
69 }
70
get_board_rev(void)71 u32 get_board_rev(void)
72 {
73 return board_rev;
74 }
75
get_model_rev(void)76 static inline u32 get_model_rev(void)
77 {
78 return (board_rev >> 8) & 0xff;
79 }
80
board_external_gpio_init(void)81 static void board_external_gpio_init(void)
82 {
83 /*
84 * some pins which in alive block are connected with external pull-up
85 * but it's default setting is pull-down.
86 * if that pin set as input then that floated
87 */
88
89 gpio_set_pull(EXYNOS4X12_GPIO_X02, S5P_GPIO_PULL_NONE); /* PS_ALS_INT */
90 gpio_set_pull(EXYNOS4X12_GPIO_X04, S5P_GPIO_PULL_NONE); /* TSP_nINT */
91 gpio_set_pull(EXYNOS4X12_GPIO_X07, S5P_GPIO_PULL_NONE); /* AP_PMIC_IRQ*/
92 gpio_set_pull(EXYNOS4X12_GPIO_X15, S5P_GPIO_PULL_NONE); /* IF_PMIC_IRQ*/
93 gpio_set_pull(EXYNOS4X12_GPIO_X20, S5P_GPIO_PULL_NONE); /* VOL_UP */
94 gpio_set_pull(EXYNOS4X12_GPIO_X21, S5P_GPIO_PULL_NONE); /* VOL_DOWN */
95 gpio_set_pull(EXYNOS4X12_GPIO_X23, S5P_GPIO_PULL_NONE); /* FUEL_ALERT */
96 gpio_set_pull(EXYNOS4X12_GPIO_X24, S5P_GPIO_PULL_NONE); /* ADC_INT */
97 gpio_set_pull(EXYNOS4X12_GPIO_X27, S5P_GPIO_PULL_NONE); /* nPOWER */
98 gpio_set_pull(EXYNOS4X12_GPIO_X30, S5P_GPIO_PULL_NONE); /* WPC_INT */
99 gpio_set_pull(EXYNOS4X12_GPIO_X35, S5P_GPIO_PULL_NONE); /* OK_KEY */
100 gpio_set_pull(EXYNOS4X12_GPIO_X37, S5P_GPIO_PULL_NONE); /* HDMI_HPD */
101 }
102
exynos_early_init_f(void)103 int exynos_early_init_f(void)
104 {
105 board_external_gpio_init();
106
107 return 0;
108 }
109
exynos_init(void)110 int exynos_init(void)
111 {
112 struct exynos4_power *pwr =
113 (struct exynos4_power *)samsung_get_base_power();
114
115 check_hw_revision();
116 printf("HW Revision:\t0x%04x\n", board_rev);
117
118 /*
119 * First bootloader on the TRATS2 platform uses
120 * INFORM4 and INFORM5 registers for recovery
121 *
122 * To indicate correct boot chain - those two
123 * registers must be cleared out
124 */
125 writel(0, &pwr->inform4);
126 writel(0, &pwr->inform5);
127
128 return 0;
129 }
130
exynos_power_init(void)131 int exynos_power_init(void)
132 {
133 #ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */
134 int chrg;
135 struct power_battery *pb;
136 struct pmic *p_chrg, *p_muic, *p_fg, *p_bat;
137
138 pmic_init_max77693(I2C_10); /* I2C adapter 10 - bus name soft1 */
139 power_muic_init(I2C_10); /* I2C adapter 10 - bus name soft1 */
140 power_fg_init(I2C_9); /* I2C adapter 9 - bus name soft0 */
141 power_bat_init(0);
142
143 p_chrg = pmic_get("MAX77693_PMIC");
144 if (!p_chrg) {
145 puts("MAX77693_PMIC: Not found\n");
146 return -ENODEV;
147 }
148
149 p_muic = pmic_get("MAX77693_MUIC");
150 if (!p_muic) {
151 puts("MAX77693_MUIC: Not found\n");
152 return -ENODEV;
153 }
154
155 p_fg = pmic_get("MAX77693_FG");
156 if (!p_fg) {
157 puts("MAX17042_FG: Not found\n");
158 return -ENODEV;
159 }
160
161 if (p_chrg->chrg->chrg_bat_present(p_chrg) == 0)
162 puts("No battery detected\n");
163
164 p_bat = pmic_get("BAT_TRATS2");
165 if (!p_bat) {
166 puts("BAT_TRATS2: Not found\n");
167 return -ENODEV;
168 }
169
170 p_fg->parent = p_bat;
171 p_chrg->parent = p_bat;
172 p_muic->parent = p_bat;
173
174 p_bat->pbat->battery_init(p_bat, p_fg, p_chrg, p_muic);
175
176 pb = p_bat->pbat;
177 chrg = p_muic->chrg->chrg_type(p_muic);
178 debug("CHARGER TYPE: %d\n", chrg);
179
180 if (!p_chrg->chrg->chrg_bat_present(p_chrg)) {
181 puts("No battery detected\n");
182 return 0;
183 }
184
185 p_fg->fg->fg_battery_check(p_fg, p_bat);
186
187 if (pb->bat->state == CHARGE && chrg == CHARGER_USB)
188 puts("CHARGE Battery !\n");
189 #endif
190 return 0;
191 }
192
193 #ifdef CONFIG_USB_GADGET
s5pc210_phy_control(int on)194 static int s5pc210_phy_control(int on)
195 {
196 #ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */
197 int ret = 0;
198 unsigned int val;
199 struct pmic *p, *p_pmic, *p_muic;
200
201 p_pmic = pmic_get("MAX77686_PMIC");
202 if (!p_pmic)
203 return -ENODEV;
204
205 if (pmic_probe(p_pmic))
206 return -1;
207
208 p_muic = pmic_get("MAX77693_MUIC");
209 if (!p_muic)
210 return -ENODEV;
211
212 if (pmic_probe(p_muic))
213 return -1;
214
215 if (on) {
216 ret = max77686_set_ldo_mode(p_pmic, 12, OPMODE_ON);
217 if (ret)
218 return -1;
219
220 p = pmic_get("MAX77693_PMIC");
221 if (!p)
222 return -ENODEV;
223
224 if (pmic_probe(p))
225 return -1;
226
227 /* SAFEOUT */
228 ret = pmic_reg_read(p, MAX77693_SAFEOUT, &val);
229 if (ret)
230 return -1;
231
232 val |= MAX77693_ENSAFEOUT1;
233 ret = pmic_reg_write(p, MAX77693_SAFEOUT, val);
234 if (ret)
235 return -1;
236
237 /* PATH: USB */
238 ret = pmic_reg_write(p_muic, MAX77693_MUIC_CONTROL1,
239 MAX77693_MUIC_CTRL1_DN1DP2);
240
241 } else {
242 ret = max77686_set_ldo_mode(p_pmic, 12, OPMODE_LPM);
243 if (ret)
244 return -1;
245
246 /* PATH: UART */
247 ret = pmic_reg_write(p_muic, MAX77693_MUIC_CONTROL1,
248 MAX77693_MUIC_CTRL1_UT1UR2);
249 }
250
251 if (ret)
252 return -1;
253 #endif
254 return 0;
255 }
256
257 struct dwc2_plat_otg_data s5pc210_otg_data = {
258 .phy_control = s5pc210_phy_control,
259 .regs_phy = EXYNOS4X12_USBPHY_BASE,
260 .regs_otg = EXYNOS4X12_USBOTG_BASE,
261 .usb_phy_ctrl = EXYNOS4X12_USBPHY_CONTROL,
262 .usb_flags = PHY0_SLEEP,
263 };
264
board_usb_init(int index,enum usb_init_type init)265 int board_usb_init(int index, enum usb_init_type init)
266 {
267 debug("USB_udc_probe\n");
268 return dwc2_udc_probe(&s5pc210_otg_data);
269 }
270
g_dnl_board_usb_cable_connected(void)271 int g_dnl_board_usb_cable_connected(void)
272 {
273 #ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */
274 struct pmic *muic = pmic_get("MAX77693_MUIC");
275 if (!muic)
276 return 0;
277
278 return !!muic->chrg->chrg_type(muic);
279 #else
280 return false;
281 #endif
282 }
283 #endif
284
285 /*
286 * LCD
287 */
288
289 #ifdef CONFIG_LCD
mipi_power(void)290 int mipi_power(void)
291 {
292 #ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */
293 struct pmic *p = pmic_get("MAX77686_PMIC");
294
295 /* LDO8 VMIPI_1.0V_AP */
296 max77686_set_ldo_mode(p, 8, OPMODE_ON);
297 /* LDO10 VMIPI_1.8V_AP */
298 max77686_set_ldo_mode(p, 10, OPMODE_ON);
299 #endif
300
301 return 0;
302 }
303
exynos_lcd_power_on(void)304 void exynos_lcd_power_on(void)
305 {
306 #ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */
307 struct pmic *p = pmic_get("MAX77686_PMIC");
308
309 /* LCD_2.2V_EN: GPC0[1] */
310 gpio_request(EXYNOS4X12_GPIO_C01, "lcd_2v2_en");
311 gpio_set_pull(EXYNOS4X12_GPIO_C01, S5P_GPIO_PULL_UP);
312 gpio_direction_output(EXYNOS4X12_GPIO_C01, 1);
313
314 /* LDO25 VCC_3.1V_LCD */
315 pmic_probe(p);
316 max77686_set_ldo_voltage(p, 25, 3100000);
317 max77686_set_ldo_mode(p, 25, OPMODE_LPM);
318 #endif
319 }
320
exynos_reset_lcd(void)321 void exynos_reset_lcd(void)
322 {
323 /* reset lcd */
324 gpio_request(EXYNOS4X12_GPIO_F21, "lcd_reset");
325 gpio_direction_output(EXYNOS4X12_GPIO_F21, 0);
326 udelay(10);
327 gpio_set_value(EXYNOS4X12_GPIO_F21, 1);
328 }
329
exynos_lcd_misc_init(vidinfo_t * vid)330 void exynos_lcd_misc_init(vidinfo_t *vid)
331 {
332 #ifdef CONFIG_TIZEN
333 get_tizen_logo_info(vid);
334 #endif
335 #ifdef CONFIG_S6E8AX0
336 s6e8ax0_init();
337 #endif
338 }
339 #endif /* LCD */
340