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 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 71 u32 get_board_rev(void) 72 { 73 return board_rev; 74 } 75 76 static inline u32 get_model_rev(void) 77 { 78 return (board_rev >> 8) & 0xff; 79 } 80 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 } 102 103 int exynos_early_init_f(void) 104 { 105 board_external_gpio_init(); 106 107 return 0; 108 } 109 110 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 } 130 131 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 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 }; 264 265 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 } 270 271 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 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 } 303 304 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 } 320 321 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 } 329 330 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