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 <asm/gpio.h> 11 #include <asm/arch/pinmux.h> 12 #include <asm/arch/power.h> 13 #include <asm/arch/mipi_dsim.h> 14 #include <power/pmic.h> 15 #include <power/max77686_pmic.h> 16 #include <power/battery.h> 17 #include <power/max77693_pmic.h> 18 #include <power/max77693_muic.h> 19 #include <power/max77693_fg.h> 20 #include <libtizen.h> 21 #include <errno.h> 22 #include <usb.h> 23 #include <usb/dwc2_udc.h> 24 #include <usb_mass_storage.h> 25 26 static unsigned int board_rev = -1; 27 28 static inline u32 get_model_rev(void); 29 30 static void check_hw_revision(void) 31 { 32 int modelrev = 0; 33 char str[12]; 34 int i; 35 36 /* 37 * GPM1[1:0]: MODEL_REV[1:0] 38 * Don't set as pull-none for these N/C pin. 39 * TRM say that it may cause unexcepted state and leakage current. 40 * and pull-none is only for output function. 41 */ 42 for (i = 0; i < 2; i++) { 43 int pin = i + EXYNOS4X12_GPIO_M10; 44 45 sprintf(str, "model_rev%d", i); 46 gpio_request(pin, str); 47 gpio_cfg_pin(pin, S5P_GPIO_INPUT); 48 } 49 50 /* GPM1[5:2]: HW_REV[3:0] */ 51 for (i = 0; i < 4; i++) { 52 int pin = i + EXYNOS4X12_GPIO_M12; 53 54 sprintf(str, "hw_rev%d", i); 55 gpio_request(pin, str); 56 gpio_cfg_pin(pin, S5P_GPIO_INPUT); 57 gpio_set_pull(pin, S5P_GPIO_PULL_NONE); 58 } 59 60 /* GPM1[1:0]: MODEL_REV[1:0] */ 61 for (i = 0; i < 2; i++) 62 modelrev |= (gpio_get_value(EXYNOS4X12_GPIO_M10 + i) << i); 63 64 /* board_rev[15:8] = model */ 65 board_rev = modelrev << 8; 66 } 67 68 u32 get_board_rev(void) 69 { 70 return board_rev; 71 } 72 73 static inline u32 get_model_rev(void) 74 { 75 return (board_rev >> 8) & 0xff; 76 } 77 78 static void board_external_gpio_init(void) 79 { 80 /* 81 * some pins which in alive block are connected with external pull-up 82 * but it's default setting is pull-down. 83 * if that pin set as input then that floated 84 */ 85 86 gpio_set_pull(EXYNOS4X12_GPIO_X02, S5P_GPIO_PULL_NONE); /* PS_ALS_INT */ 87 gpio_set_pull(EXYNOS4X12_GPIO_X04, S5P_GPIO_PULL_NONE); /* TSP_nINT */ 88 gpio_set_pull(EXYNOS4X12_GPIO_X07, S5P_GPIO_PULL_NONE); /* AP_PMIC_IRQ*/ 89 gpio_set_pull(EXYNOS4X12_GPIO_X15, S5P_GPIO_PULL_NONE); /* IF_PMIC_IRQ*/ 90 gpio_set_pull(EXYNOS4X12_GPIO_X20, S5P_GPIO_PULL_NONE); /* VOL_UP */ 91 gpio_set_pull(EXYNOS4X12_GPIO_X21, S5P_GPIO_PULL_NONE); /* VOL_DOWN */ 92 gpio_set_pull(EXYNOS4X12_GPIO_X23, S5P_GPIO_PULL_NONE); /* FUEL_ALERT */ 93 gpio_set_pull(EXYNOS4X12_GPIO_X24, S5P_GPIO_PULL_NONE); /* ADC_INT */ 94 gpio_set_pull(EXYNOS4X12_GPIO_X27, S5P_GPIO_PULL_NONE); /* nPOWER */ 95 gpio_set_pull(EXYNOS4X12_GPIO_X30, S5P_GPIO_PULL_NONE); /* WPC_INT */ 96 gpio_set_pull(EXYNOS4X12_GPIO_X35, S5P_GPIO_PULL_NONE); /* OK_KEY */ 97 gpio_set_pull(EXYNOS4X12_GPIO_X37, S5P_GPIO_PULL_NONE); /* HDMI_HPD */ 98 } 99 100 int exynos_early_init_f(void) 101 { 102 board_external_gpio_init(); 103 104 return 0; 105 } 106 107 int exynos_init(void) 108 { 109 struct exynos4_power *pwr = 110 (struct exynos4_power *)samsung_get_base_power(); 111 112 check_hw_revision(); 113 printf("HW Revision:\t0x%04x\n", board_rev); 114 115 /* 116 * First bootloader on the TRATS2 platform uses 117 * INFORM4 and INFORM5 registers for recovery 118 * 119 * To indicate correct boot chain - those two 120 * registers must be cleared out 121 */ 122 writel(0, &pwr->inform4); 123 writel(0, &pwr->inform5); 124 125 return 0; 126 } 127 128 int exynos_power_init(void) 129 { 130 #ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */ 131 int chrg; 132 struct power_battery *pb; 133 struct pmic *p_chrg, *p_muic, *p_fg, *p_bat; 134 135 pmic_init_max77693(I2C_10); /* I2C adapter 10 - bus name soft1 */ 136 power_muic_init(I2C_10); /* I2C adapter 10 - bus name soft1 */ 137 power_fg_init(I2C_9); /* I2C adapter 9 - bus name soft0 */ 138 power_bat_init(0); 139 140 p_chrg = pmic_get("MAX77693_PMIC"); 141 if (!p_chrg) { 142 puts("MAX77693_PMIC: Not found\n"); 143 return -ENODEV; 144 } 145 146 p_muic = pmic_get("MAX77693_MUIC"); 147 if (!p_muic) { 148 puts("MAX77693_MUIC: Not found\n"); 149 return -ENODEV; 150 } 151 152 p_fg = pmic_get("MAX77693_FG"); 153 if (!p_fg) { 154 puts("MAX17042_FG: Not found\n"); 155 return -ENODEV; 156 } 157 158 if (p_chrg->chrg->chrg_bat_present(p_chrg) == 0) 159 puts("No battery detected\n"); 160 161 p_bat = pmic_get("BAT_TRATS2"); 162 if (!p_bat) { 163 puts("BAT_TRATS2: Not found\n"); 164 return -ENODEV; 165 } 166 167 p_fg->parent = p_bat; 168 p_chrg->parent = p_bat; 169 p_muic->parent = p_bat; 170 171 p_bat->pbat->battery_init(p_bat, p_fg, p_chrg, p_muic); 172 173 pb = p_bat->pbat; 174 chrg = p_muic->chrg->chrg_type(p_muic); 175 debug("CHARGER TYPE: %d\n", chrg); 176 177 if (!p_chrg->chrg->chrg_bat_present(p_chrg)) { 178 puts("No battery detected\n"); 179 return 0; 180 } 181 182 p_fg->fg->fg_battery_check(p_fg, p_bat); 183 184 if (pb->bat->state == CHARGE && chrg == CHARGER_USB) 185 puts("CHARGE Battery !\n"); 186 #endif 187 return 0; 188 } 189 190 #ifdef CONFIG_USB_GADGET 191 static int s5pc210_phy_control(int on) 192 { 193 #ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */ 194 int ret = 0; 195 unsigned int val; 196 struct pmic *p, *p_pmic, *p_muic; 197 198 p_pmic = pmic_get("MAX77686_PMIC"); 199 if (!p_pmic) 200 return -ENODEV; 201 202 if (pmic_probe(p_pmic)) 203 return -1; 204 205 p_muic = pmic_get("MAX77693_MUIC"); 206 if (!p_muic) 207 return -ENODEV; 208 209 if (pmic_probe(p_muic)) 210 return -1; 211 212 if (on) { 213 ret = max77686_set_ldo_mode(p_pmic, 12, OPMODE_ON); 214 if (ret) 215 return -1; 216 217 p = pmic_get("MAX77693_PMIC"); 218 if (!p) 219 return -ENODEV; 220 221 if (pmic_probe(p)) 222 return -1; 223 224 /* SAFEOUT */ 225 ret = pmic_reg_read(p, MAX77693_SAFEOUT, &val); 226 if (ret) 227 return -1; 228 229 val |= MAX77693_ENSAFEOUT1; 230 ret = pmic_reg_write(p, MAX77693_SAFEOUT, val); 231 if (ret) 232 return -1; 233 234 /* PATH: USB */ 235 ret = pmic_reg_write(p_muic, MAX77693_MUIC_CONTROL1, 236 MAX77693_MUIC_CTRL1_DN1DP2); 237 238 } else { 239 ret = max77686_set_ldo_mode(p_pmic, 12, OPMODE_LPM); 240 if (ret) 241 return -1; 242 243 /* PATH: UART */ 244 ret = pmic_reg_write(p_muic, MAX77693_MUIC_CONTROL1, 245 MAX77693_MUIC_CTRL1_UT1UR2); 246 } 247 248 if (ret) 249 return -1; 250 #endif 251 return 0; 252 } 253 254 struct dwc2_plat_otg_data s5pc210_otg_data = { 255 .phy_control = s5pc210_phy_control, 256 .regs_phy = EXYNOS4X12_USBPHY_BASE, 257 .regs_otg = EXYNOS4X12_USBOTG_BASE, 258 .usb_phy_ctrl = EXYNOS4X12_USBPHY_CONTROL, 259 .usb_flags = PHY0_SLEEP, 260 }; 261 262 int board_usb_init(int index, enum usb_init_type init) 263 { 264 debug("USB_udc_probe\n"); 265 return dwc2_udc_probe(&s5pc210_otg_data); 266 } 267 268 int g_dnl_board_usb_cable_connected(void) 269 { 270 #ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */ 271 struct pmic *muic = pmic_get("MAX77693_MUIC"); 272 if (!muic) 273 return 0; 274 275 return !!muic->chrg->chrg_type(muic); 276 #else 277 return false; 278 #endif 279 } 280 #endif 281 282 /* 283 * LCD 284 */ 285 286 #ifdef CONFIG_LCD 287 int mipi_power(void) 288 { 289 #ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */ 290 struct pmic *p = pmic_get("MAX77686_PMIC"); 291 292 /* LDO8 VMIPI_1.0V_AP */ 293 max77686_set_ldo_mode(p, 8, OPMODE_ON); 294 /* LDO10 VMIPI_1.8V_AP */ 295 max77686_set_ldo_mode(p, 10, OPMODE_ON); 296 #endif 297 298 return 0; 299 } 300 301 void exynos_lcd_power_on(void) 302 { 303 #ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */ 304 struct pmic *p = pmic_get("MAX77686_PMIC"); 305 306 /* LCD_2.2V_EN: GPC0[1] */ 307 gpio_request(EXYNOS4X12_GPIO_C01, "lcd_2v2_en"); 308 gpio_set_pull(EXYNOS4X12_GPIO_C01, S5P_GPIO_PULL_UP); 309 gpio_direction_output(EXYNOS4X12_GPIO_C01, 1); 310 311 /* LDO25 VCC_3.1V_LCD */ 312 pmic_probe(p); 313 max77686_set_ldo_voltage(p, 25, 3100000); 314 max77686_set_ldo_mode(p, 25, OPMODE_LPM); 315 #endif 316 } 317 318 void exynos_reset_lcd(void) 319 { 320 /* reset lcd */ 321 gpio_request(EXYNOS4X12_GPIO_F21, "lcd_reset"); 322 gpio_direction_output(EXYNOS4X12_GPIO_F21, 0); 323 udelay(10); 324 gpio_set_value(EXYNOS4X12_GPIO_F21, 1); 325 } 326 327 void exynos_lcd_misc_init(vidinfo_t *vid) 328 { 329 #ifdef CONFIG_TIZEN 330 get_tizen_logo_info(vid); 331 #endif 332 #ifdef CONFIG_S6E8AX0 333 s6e8ax0_init(); 334 #endif 335 } 336 #endif /* LCD */ 337