1 /* 2 * Copyright (C) 2011 Samsung Electronics 3 * Heungjun Kim <riverful.kim@samsung.com> 4 * Kyungmin Park <kyungmin.park@samsung.com> 5 * Donghwa Lee <dh09.lee@samsung.com> 6 * 7 * SPDX-License-Identifier: GPL-2.0+ 8 */ 9 10 #include <common.h> 11 #include <lcd.h> 12 #include <asm/io.h> 13 #include <asm/gpio.h> 14 #include <asm/arch/cpu.h> 15 #include <asm/arch/pinmux.h> 16 #include <asm/arch/clock.h> 17 #include <asm/arch/mipi_dsim.h> 18 #include <asm/arch/watchdog.h> 19 #include <asm/arch/power.h> 20 #include <power/pmic.h> 21 #include <usb/dwc2_udc.h> 22 #include <power/max8997_pmic.h> 23 #include <power/max8997_muic.h> 24 #include <power/battery.h> 25 #include <power/max17042_fg.h> 26 #include <power/pmic.h> 27 #include <libtizen.h> 28 #include <usb.h> 29 #include <usb_mass_storage.h> 30 31 #include "setup.h" 32 33 DECLARE_GLOBAL_DATA_PTR; 34 35 unsigned int board_rev; 36 37 #ifdef CONFIG_REVISION_TAG 38 u32 get_board_rev(void) 39 { 40 return board_rev; 41 } 42 #endif 43 44 static void check_hw_revision(void); 45 struct dwc2_plat_otg_data s5pc210_otg_data; 46 47 int exynos_init(void) 48 { 49 check_hw_revision(); 50 printf("HW Revision:\t0x%x\n", board_rev); 51 52 return 0; 53 } 54 55 #ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */ 56 static void trats_low_power_mode(void) 57 { 58 struct exynos4_clock *clk = 59 (struct exynos4_clock *)samsung_get_base_clock(); 60 struct exynos4_power *pwr = 61 (struct exynos4_power *)samsung_get_base_power(); 62 63 /* Power down CORE1 */ 64 /* LOCAL_PWR_CFG [1:0] 0x3 EN, 0x0 DIS */ 65 writel(0x0, &pwr->arm_core1_configuration); 66 67 /* Change the APLL frequency */ 68 /* ENABLE (1 enable) | LOCKED (1 locked) */ 69 /* [31] | [29] */ 70 /* FSEL | MDIV | PDIV | SDIV */ 71 /* [27] | [25:16] | [13:8] | [2:0] */ 72 writel(0xa0c80604, &clk->apll_con0); 73 74 /* Change CPU0 clock divider */ 75 /* CORE2_RATIO | APLL_RATIO | PCLK_DBG_RATIO | ATB_RATIO */ 76 /* [30:28] | [26:24] | [22:20] | [18:16] */ 77 /* PERIPH_RATIO | COREM1_RATIO | COREM0_RATIO | CORE_RATIO */ 78 /* [14:12] | [10:8] | [6:4] | [2:0] */ 79 writel(0x00000100, &clk->div_cpu0); 80 81 /* CLK_DIV_STAT_CPU0 - wait until clock gets stable (0 = stable) */ 82 while (readl(&clk->div_stat_cpu0) & 0x1111111) 83 continue; 84 85 /* Change clock divider ratio for DMC */ 86 /* DMCP_RATIO | DMCD_RATIO */ 87 /* [22:20] | [18:16] */ 88 /* DMC_RATIO | DPHY_RATIO | ACP_PCLK_RATIO | ACP_RATIO */ 89 /* [14:12] | [10:8] | [6:4] | [2:0] */ 90 writel(0x13113117, &clk->div_dmc0); 91 92 /* CLK_DIV_STAT_DMC0 - wait until clock gets stable (0 = stable) */ 93 while (readl(&clk->div_stat_dmc0) & 0x11111111) 94 continue; 95 96 /* Turn off unnecessary power domains */ 97 writel(0x0, &pwr->xxti_configuration); /* XXTI */ 98 writel(0x0, &pwr->cam_configuration); /* CAM */ 99 writel(0x0, &pwr->tv_configuration); /* TV */ 100 writel(0x0, &pwr->mfc_configuration); /* MFC */ 101 writel(0x0, &pwr->g3d_configuration); /* G3D */ 102 writel(0x0, &pwr->gps_configuration); /* GPS */ 103 writel(0x0, &pwr->gps_alive_configuration); /* GPS_ALIVE */ 104 105 /* Turn off unnecessary clocks */ 106 writel(0x0, &clk->gate_ip_cam); /* CAM */ 107 writel(0x0, &clk->gate_ip_tv); /* TV */ 108 writel(0x0, &clk->gate_ip_mfc); /* MFC */ 109 writel(0x0, &clk->gate_ip_g3d); /* G3D */ 110 writel(0x0, &clk->gate_ip_image); /* IMAGE */ 111 writel(0x0, &clk->gate_ip_gps); /* GPS */ 112 } 113 #endif 114 115 int exynos_power_init(void) 116 { 117 #ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */ 118 int chrg, ret; 119 struct power_battery *pb; 120 struct pmic *p_fg, *p_chrg, *p_muic, *p_bat; 121 122 /* 123 * For PMIC/MUIC the I2C bus is named as I2C5, but it is connected 124 * to logical I2C adapter 0 125 * 126 * The FUEL_GAUGE is marked as I2C9 on the schematic, but connected 127 * to logical I2C adapter 1 128 */ 129 ret = power_fg_init(I2C_9); 130 ret |= power_muic_init(I2C_5); 131 ret |= power_bat_init(0); 132 if (ret) 133 return ret; 134 135 p_fg = pmic_get("MAX17042_FG"); 136 if (!p_fg) { 137 puts("MAX17042_FG: Not found\n"); 138 return -ENODEV; 139 } 140 141 p_chrg = pmic_get("MAX8997_PMIC"); 142 if (!p_chrg) { 143 puts("MAX8997_PMIC: Not found\n"); 144 return -ENODEV; 145 } 146 147 p_muic = pmic_get("MAX8997_MUIC"); 148 if (!p_muic) { 149 puts("MAX8997_MUIC: Not found\n"); 150 return -ENODEV; 151 } 152 153 p_bat = pmic_get("BAT_TRATS"); 154 if (!p_bat) { 155 puts("BAT_TRATS: Not found\n"); 156 return -ENODEV; 157 } 158 159 p_fg->parent = p_bat; 160 p_chrg->parent = p_bat; 161 p_muic->parent = p_bat; 162 163 p_bat->low_power_mode = trats_low_power_mode; 164 p_bat->pbat->battery_init(p_bat, p_fg, p_chrg, p_muic); 165 166 pb = p_bat->pbat; 167 chrg = p_muic->chrg->chrg_type(p_muic); 168 debug("CHARGER TYPE: %d\n", chrg); 169 170 if (!p_chrg->chrg->chrg_bat_present(p_chrg)) { 171 puts("No battery detected\n"); 172 return 0; 173 } 174 175 p_fg->fg->fg_battery_check(p_fg, p_bat); 176 177 if (pb->bat->state == CHARGE && chrg == CHARGER_USB) 178 puts("CHARGE Battery !\n"); 179 #endif 180 181 return 0; 182 } 183 184 static unsigned int get_hw_revision(void) 185 { 186 int hwrev = 0; 187 char str[10]; 188 int i; 189 190 /* hw_rev[3:0] == GPE1[3:0] */ 191 for (i = 0; i < 4; i++) { 192 int pin = i + EXYNOS4_GPIO_E10; 193 194 sprintf(str, "hw_rev%d", i); 195 gpio_request(pin, str); 196 gpio_cfg_pin(pin, S5P_GPIO_INPUT); 197 gpio_set_pull(pin, S5P_GPIO_PULL_NONE); 198 } 199 200 udelay(1); 201 202 for (i = 0; i < 4; i++) 203 hwrev |= (gpio_get_value(EXYNOS4_GPIO_E10 + i) << i); 204 205 debug("hwrev 0x%x\n", hwrev); 206 207 return hwrev; 208 } 209 210 static void check_hw_revision(void) 211 { 212 int hwrev; 213 214 hwrev = get_hw_revision(); 215 216 board_rev |= hwrev; 217 } 218 219 220 #ifdef CONFIG_USB_GADGET 221 static int s5pc210_phy_control(int on) 222 { 223 struct udevice *dev; 224 int reg, ret; 225 226 ret = pmic_get("max8997-pmic", &dev); 227 if (ret) 228 return ret; 229 230 if (on) { 231 reg = pmic_reg_read(dev, MAX8997_REG_SAFEOUTCTRL); 232 reg |= ENSAFEOUT1; 233 ret = pmic_reg_write(dev, MAX8997_REG_SAFEOUTCTRL, reg); 234 if (ret) { 235 puts("MAX8997 setting error!\n"); 236 return ret; 237 } 238 reg = pmic_reg_read(dev, MAX8997_REG_LDO3CTRL); 239 reg |= EN_LDO; 240 ret = pmic_reg_write(dev, MAX8997_REG_LDO3CTRL, reg); 241 if (ret) { 242 puts("MAX8997 setting error!\n"); 243 return ret; 244 } 245 reg = pmic_reg_read(dev, MAX8997_REG_LDO8CTRL); 246 reg |= EN_LDO; 247 ret = pmic_reg_write(dev, MAX8997_REG_LDO8CTRL, reg); 248 if (ret) { 249 puts("MAX8997 setting error!\n"); 250 return ret; 251 } 252 } else { 253 reg = pmic_reg_read(dev, MAX8997_REG_LDO8CTRL); 254 reg &= DIS_LDO; 255 ret = pmic_reg_write(dev, MAX8997_REG_LDO8CTRL, reg); 256 if (ret) { 257 puts("MAX8997 setting error!\n"); 258 return ret; 259 } 260 reg = pmic_reg_read(dev, MAX8997_REG_LDO3CTRL); 261 reg &= DIS_LDO; 262 ret = pmic_reg_write(dev, MAX8997_REG_LDO3CTRL, reg); 263 if (ret) { 264 puts("MAX8997 setting error!\n"); 265 return ret; 266 } 267 reg = pmic_reg_read(dev, MAX8997_REG_SAFEOUTCTRL); 268 reg &= ~ENSAFEOUT1; 269 ret = pmic_reg_write(dev, MAX8997_REG_SAFEOUTCTRL, reg); 270 if (ret) { 271 puts("MAX8997 setting error!\n"); 272 return ret; 273 } 274 275 } 276 277 return 0; 278 } 279 280 struct dwc2_plat_otg_data s5pc210_otg_data = { 281 .phy_control = s5pc210_phy_control, 282 .regs_phy = EXYNOS4_USBPHY_BASE, 283 .regs_otg = EXYNOS4_USBOTG_BASE, 284 .usb_phy_ctrl = EXYNOS4_USBPHY_CONTROL, 285 .usb_flags = PHY0_SLEEP, 286 }; 287 288 int board_usb_init(int index, enum usb_init_type init) 289 { 290 debug("USB_udc_probe\n"); 291 return dwc2_udc_probe(&s5pc210_otg_data); 292 } 293 294 int g_dnl_board_usb_cable_connected(void) 295 { 296 #ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */ 297 struct pmic *muic = pmic_get("MAX8997_MUIC"); 298 if (!muic) 299 return 0; 300 301 return !!muic->chrg->chrg_type(muic); 302 #else 303 return false; 304 #endif 305 306 } 307 #endif 308 309 static void pmic_reset(void) 310 { 311 gpio_direction_output(EXYNOS4_GPIO_X07, 1); 312 gpio_set_pull(EXYNOS4_GPIO_X27, S5P_GPIO_PULL_NONE); 313 } 314 315 static void board_clock_init(void) 316 { 317 struct exynos4_clock *clk = 318 (struct exynos4_clock *)samsung_get_base_clock(); 319 320 writel(CLK_SRC_CPU_VAL, (unsigned int)&clk->src_cpu); 321 writel(CLK_SRC_TOP0_VAL, (unsigned int)&clk->src_top0); 322 writel(CLK_SRC_FSYS_VAL, (unsigned int)&clk->src_fsys); 323 writel(CLK_SRC_PERIL0_VAL, (unsigned int)&clk->src_peril0); 324 325 writel(CLK_DIV_CPU0_VAL, (unsigned int)&clk->div_cpu0); 326 writel(CLK_DIV_CPU1_VAL, (unsigned int)&clk->div_cpu1); 327 writel(CLK_DIV_DMC0_VAL, (unsigned int)&clk->div_dmc0); 328 writel(CLK_DIV_DMC1_VAL, (unsigned int)&clk->div_dmc1); 329 writel(CLK_DIV_LEFTBUS_VAL, (unsigned int)&clk->div_leftbus); 330 writel(CLK_DIV_RIGHTBUS_VAL, (unsigned int)&clk->div_rightbus); 331 writel(CLK_DIV_TOP_VAL, (unsigned int)&clk->div_top); 332 writel(CLK_DIV_FSYS1_VAL, (unsigned int)&clk->div_fsys1); 333 writel(CLK_DIV_FSYS2_VAL, (unsigned int)&clk->div_fsys2); 334 writel(CLK_DIV_FSYS3_VAL, (unsigned int)&clk->div_fsys3); 335 writel(CLK_DIV_PERIL0_VAL, (unsigned int)&clk->div_peril0); 336 writel(CLK_DIV_PERIL3_VAL, (unsigned int)&clk->div_peril3); 337 338 writel(PLL_LOCKTIME, (unsigned int)&clk->apll_lock); 339 writel(PLL_LOCKTIME, (unsigned int)&clk->mpll_lock); 340 writel(PLL_LOCKTIME, (unsigned int)&clk->epll_lock); 341 writel(PLL_LOCKTIME, (unsigned int)&clk->vpll_lock); 342 writel(APLL_CON1_VAL, (unsigned int)&clk->apll_con1); 343 writel(APLL_CON0_VAL, (unsigned int)&clk->apll_con0); 344 writel(MPLL_CON1_VAL, (unsigned int)&clk->mpll_con1); 345 writel(MPLL_CON0_VAL, (unsigned int)&clk->mpll_con0); 346 writel(EPLL_CON1_VAL, (unsigned int)&clk->epll_con1); 347 writel(EPLL_CON0_VAL, (unsigned int)&clk->epll_con0); 348 writel(VPLL_CON1_VAL, (unsigned int)&clk->vpll_con1); 349 writel(VPLL_CON0_VAL, (unsigned int)&clk->vpll_con0); 350 351 writel(CLK_GATE_IP_CAM_VAL, (unsigned int)&clk->gate_ip_cam); 352 writel(CLK_GATE_IP_VP_VAL, (unsigned int)&clk->gate_ip_tv); 353 writel(CLK_GATE_IP_MFC_VAL, (unsigned int)&clk->gate_ip_mfc); 354 writel(CLK_GATE_IP_G3D_VAL, (unsigned int)&clk->gate_ip_g3d); 355 writel(CLK_GATE_IP_IMAGE_VAL, (unsigned int)&clk->gate_ip_image); 356 writel(CLK_GATE_IP_LCD0_VAL, (unsigned int)&clk->gate_ip_lcd0); 357 writel(CLK_GATE_IP_LCD1_VAL, (unsigned int)&clk->gate_ip_lcd1); 358 writel(CLK_GATE_IP_FSYS_VAL, (unsigned int)&clk->gate_ip_fsys); 359 writel(CLK_GATE_IP_GPS_VAL, (unsigned int)&clk->gate_ip_gps); 360 writel(CLK_GATE_IP_PERIL_VAL, (unsigned int)&clk->gate_ip_peril); 361 writel(CLK_GATE_IP_PERIR_VAL, (unsigned int)&clk->gate_ip_perir); 362 writel(CLK_GATE_BLOCK_VAL, (unsigned int)&clk->gate_block); 363 } 364 365 static void board_power_init(void) 366 { 367 struct exynos4_power *pwr = 368 (struct exynos4_power *)samsung_get_base_power(); 369 370 /* PS HOLD */ 371 writel(EXYNOS4_PS_HOLD_CON_VAL, (unsigned int)&pwr->ps_hold_control); 372 373 /* Set power down */ 374 writel(0, (unsigned int)&pwr->cam_configuration); 375 writel(0, (unsigned int)&pwr->tv_configuration); 376 writel(0, (unsigned int)&pwr->mfc_configuration); 377 writel(0, (unsigned int)&pwr->g3d_configuration); 378 writel(0, (unsigned int)&pwr->lcd1_configuration); 379 writel(0, (unsigned int)&pwr->gps_configuration); 380 writel(0, (unsigned int)&pwr->gps_alive_configuration); 381 382 /* It is necessary to power down core 1 */ 383 /* to successfully boot CPU1 in kernel */ 384 writel(0, (unsigned int)&pwr->arm_core1_configuration); 385 } 386 387 static void exynos_uart_init(void) 388 { 389 /* UART_SEL GPY4[7] (part2) at EXYNOS4 */ 390 gpio_request(EXYNOS4_GPIO_Y47, "uart_sel"); 391 gpio_set_pull(EXYNOS4_GPIO_Y47, S5P_GPIO_PULL_UP); 392 gpio_direction_output(EXYNOS4_GPIO_Y47, 1); 393 } 394 395 int exynos_early_init_f(void) 396 { 397 wdt_stop(); 398 pmic_reset(); 399 board_clock_init(); 400 exynos_uart_init(); 401 board_power_init(); 402 403 return 0; 404 } 405 406 void exynos_reset_lcd(void) 407 { 408 gpio_request(EXYNOS4_GPIO_Y45, "lcd_reset"); 409 gpio_direction_output(EXYNOS4_GPIO_Y45, 1); 410 udelay(10000); 411 gpio_direction_output(EXYNOS4_GPIO_Y45, 0); 412 udelay(10000); 413 gpio_direction_output(EXYNOS4_GPIO_Y45, 1); 414 } 415 416 int lcd_power(void) 417 { 418 #ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */ 419 int ret = 0; 420 struct pmic *p = pmic_get("MAX8997_PMIC"); 421 if (!p) 422 return -ENODEV; 423 424 if (pmic_probe(p)) 425 return 0; 426 427 /* LDO15 voltage: 2.2v */ 428 ret |= pmic_reg_write(p, MAX8997_REG_LDO15CTRL, 0x1c | EN_LDO); 429 /* LDO13 voltage: 3.0v */ 430 ret |= pmic_reg_write(p, MAX8997_REG_LDO13CTRL, 0x2c | EN_LDO); 431 432 if (ret) { 433 puts("MAX8997 LDO setting error!\n"); 434 return -1; 435 } 436 #endif 437 return 0; 438 } 439 440 int mipi_power(void) 441 { 442 #ifndef CONFIG_DM_I2C /* TODO(maintainer): Convert to driver model */ 443 int ret = 0; 444 struct pmic *p = pmic_get("MAX8997_PMIC"); 445 if (!p) 446 return -ENODEV; 447 448 if (pmic_probe(p)) 449 return 0; 450 451 /* LDO3 voltage: 1.1v */ 452 ret |= pmic_reg_write(p, MAX8997_REG_LDO3CTRL, 0x6 | EN_LDO); 453 /* LDO4 voltage: 1.8v */ 454 ret |= pmic_reg_write(p, MAX8997_REG_LDO4CTRL, 0x14 | EN_LDO); 455 456 if (ret) { 457 puts("MAX8997 LDO setting error!\n"); 458 return -1; 459 } 460 #endif 461 return 0; 462 } 463 464 #ifdef CONFIG_LCD 465 void exynos_lcd_misc_init(vidinfo_t *vid) 466 { 467 #ifdef CONFIG_TIZEN 468 get_tizen_logo_info(vid); 469 #endif 470 #ifdef CONFIG_S6E8AX0 471 s6e8ax0_init(); 472 setenv("lcdinfo", "lcd=s6e8ax0"); 473 #endif 474 } 475 #endif 476