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