1 /* 2 * Copyright (C) 2014 Samsung Electronics 3 * Przemyslaw Marczak <p.marczak@samsung.com> 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #include <common.h> 9 #include <asm/arch/pinmux.h> 10 #include <asm/arch/power.h> 11 #include <asm/arch/clock.h> 12 #include <asm/arch/gpio.h> 13 #include <asm/gpio.h> 14 #include <asm/arch/cpu.h> 15 #include <dm.h> 16 #include <power/pmic.h> 17 #include <power/regulator.h> 18 #include <power/max77686_pmic.h> 19 #include <errno.h> 20 #include <mmc.h> 21 #include <usb.h> 22 #include <usb/dwc2_udc.h> 23 #include <samsung/misc.h> 24 #include "setup.h" 25 26 DECLARE_GLOBAL_DATA_PTR; 27 28 #ifdef CONFIG_BOARD_TYPES 29 /* Odroid board types */ 30 enum { 31 ODROID_TYPE_U3, 32 ODROID_TYPE_X2, 33 ODROID_TYPES, 34 }; 35 36 void set_board_type(void) 37 { 38 /* Set GPA1 pin 1 to HI - enable XCL205 output */ 39 writel(XCL205_EN_GPIO_CON_CFG, XCL205_EN_GPIO_CON); 40 writel(XCL205_EN_GPIO_DAT_CFG, XCL205_EN_GPIO_CON + 0x4); 41 writel(XCL205_EN_GPIO_PUD_CFG, XCL205_EN_GPIO_CON + 0x8); 42 writel(XCL205_EN_GPIO_DRV_CFG, XCL205_EN_GPIO_CON + 0xc); 43 44 /* Set GPC1 pin 2 to IN - check XCL205 output state */ 45 writel(XCL205_STATE_GPIO_CON_CFG, XCL205_STATE_GPIO_CON); 46 writel(XCL205_STATE_GPIO_PUD_CFG, XCL205_STATE_GPIO_CON + 0x8); 47 48 /* XCL205 - needs some latch time */ 49 sdelay(200000); 50 51 /* Check GPC1 pin2 - LED supplied by XCL205 - X2 only */ 52 if (readl(XCL205_STATE_GPIO_DAT) & (1 << XCL205_STATE_GPIO_PIN)) 53 gd->board_type = ODROID_TYPE_X2; 54 else 55 gd->board_type = ODROID_TYPE_U3; 56 } 57 58 const char *get_board_type(void) 59 { 60 const char *board_type[] = {"u3", "x2"}; 61 62 return board_type[gd->board_type]; 63 } 64 #endif 65 66 #ifdef CONFIG_SET_DFU_ALT_INFO 67 char *get_dfu_alt_system(char *interface, char *devstr) 68 { 69 return env_get("dfu_alt_system"); 70 } 71 72 char *get_dfu_alt_boot(char *interface, char *devstr) 73 { 74 struct mmc *mmc; 75 char *alt_boot; 76 int dev_num; 77 78 dev_num = simple_strtoul(devstr, NULL, 10); 79 80 mmc = find_mmc_device(dev_num); 81 if (!mmc) 82 return NULL; 83 84 if (mmc_init(mmc)) 85 return NULL; 86 87 alt_boot = IS_SD(mmc) ? CONFIG_DFU_ALT_BOOT_SD : 88 CONFIG_DFU_ALT_BOOT_EMMC; 89 90 return alt_boot; 91 } 92 #endif 93 94 static void board_clock_init(void) 95 { 96 unsigned int set, clr, clr_src_cpu, clr_pll_con0, clr_src_dmc; 97 struct exynos4x12_clock *clk = (struct exynos4x12_clock *) 98 samsung_get_base_clock(); 99 100 /* 101 * CMU_CPU clocks src to MPLL 102 * Bit values: 0 ; 1 103 * MUX_APLL_SEL: FIN_PLL ; FOUT_APLL 104 * MUX_CORE_SEL: MOUT_APLL ; SCLK_MPLL 105 * MUX_HPM_SEL: MOUT_APLL ; SCLK_MPLL_USER_C 106 * MUX_MPLL_USER_SEL_C: FIN_PLL ; SCLK_MPLL 107 */ 108 clr_src_cpu = MUX_APLL_SEL(1) | MUX_CORE_SEL(1) | 109 MUX_HPM_SEL(1) | MUX_MPLL_USER_SEL_C(1); 110 set = MUX_APLL_SEL(0) | MUX_CORE_SEL(1) | MUX_HPM_SEL(1) | 111 MUX_MPLL_USER_SEL_C(1); 112 113 clrsetbits_le32(&clk->src_cpu, clr_src_cpu, set); 114 115 /* Wait for mux change */ 116 while (readl(&clk->mux_stat_cpu) & MUX_STAT_CPU_CHANGING) 117 continue; 118 119 /* Set APLL to 1000MHz */ 120 clr_pll_con0 = SDIV(7) | PDIV(63) | MDIV(1023) | FSEL(1); 121 set = SDIV(0) | PDIV(3) | MDIV(125) | FSEL(1); 122 123 clrsetbits_le32(&clk->apll_con0, clr_pll_con0, set); 124 125 /* Wait for PLL to be locked */ 126 while (!(readl(&clk->apll_con0) & PLL_LOCKED_BIT)) 127 continue; 128 129 /* Set CMU_CPU clocks src to APLL */ 130 set = MUX_APLL_SEL(1) | MUX_CORE_SEL(0) | MUX_HPM_SEL(0) | 131 MUX_MPLL_USER_SEL_C(1); 132 clrsetbits_le32(&clk->src_cpu, clr_src_cpu, set); 133 134 /* Wait for mux change */ 135 while (readl(&clk->mux_stat_cpu) & MUX_STAT_CPU_CHANGING) 136 continue; 137 138 set = CORE_RATIO(0) | COREM0_RATIO(2) | COREM1_RATIO(5) | 139 PERIPH_RATIO(0) | ATB_RATIO(4) | PCLK_DBG_RATIO(1) | 140 APLL_RATIO(0) | CORE2_RATIO(0); 141 /* 142 * Set dividers for MOUTcore = 1000 MHz 143 * coreout = MOUT / (ratio + 1) = 1000 MHz (0) 144 * corem0 = armclk / (ratio + 1) = 333 MHz (2) 145 * corem1 = armclk / (ratio + 1) = 166 MHz (5) 146 * periph = armclk / (ratio + 1) = 1000 MHz (0) 147 * atbout = MOUT / (ratio + 1) = 200 MHz (4) 148 * pclkdbgout = atbout / (ratio + 1) = 100 MHz (1) 149 * sclkapll = MOUTapll / (ratio + 1) = 1000 MHz (0) 150 * core2out = core_out / (ratio + 1) = 1000 MHz (0) (armclk) 151 */ 152 clr = CORE_RATIO(7) | COREM0_RATIO(7) | COREM1_RATIO(7) | 153 PERIPH_RATIO(7) | ATB_RATIO(7) | PCLK_DBG_RATIO(7) | 154 APLL_RATIO(7) | CORE2_RATIO(7); 155 156 clrsetbits_le32(&clk->div_cpu0, clr, set); 157 158 /* Wait for divider ready status */ 159 while (readl(&clk->div_stat_cpu0) & DIV_STAT_CPU0_CHANGING) 160 continue; 161 162 /* 163 * For MOUThpm = 1000 MHz (MOUTapll) 164 * doutcopy = MOUThpm / (ratio + 1) = 200 (4) 165 * sclkhpm = doutcopy / (ratio + 1) = 200 (4) 166 * cores_out = armclk / (ratio + 1) = 200 (4) 167 */ 168 clr = COPY_RATIO(7) | HPM_RATIO(7) | CORES_RATIO(7); 169 set = COPY_RATIO(4) | HPM_RATIO(4) | CORES_RATIO(4); 170 171 clrsetbits_le32(&clk->div_cpu1, clr, set); 172 173 /* Wait for divider ready status */ 174 while (readl(&clk->div_stat_cpu1) & DIV_STAT_CPU1_CHANGING) 175 continue; 176 177 /* 178 * Set CMU_DMC clocks src to APLL 179 * Bit values: 0 ; 1 180 * MUX_C2C_SEL: SCLKMPLL ; SCLKAPLL 181 * MUX_DMC_BUS_SEL: SCLKMPLL ; SCLKAPLL 182 * MUX_DPHY_SEL: SCLKMPLL ; SCLKAPLL 183 * MUX_MPLL_SEL: FINPLL ; MOUT_MPLL_FOUT 184 * MUX_PWI_SEL: 0110 (MPLL); 0111 (EPLL); 1000 (VPLL); 0(XXTI) 185 * MUX_G2D_ACP0_SEL: SCLKMPLL ; SCLKAPLL 186 * MUX_G2D_ACP1_SEL: SCLKEPLL ; SCLKVPLL 187 * MUX_G2D_ACP_SEL: OUT_ACP0 ; OUT_ACP1 188 */ 189 clr_src_dmc = MUX_C2C_SEL(1) | MUX_DMC_BUS_SEL(1) | 190 MUX_DPHY_SEL(1) | MUX_MPLL_SEL(1) | 191 MUX_PWI_SEL(15) | MUX_G2D_ACP0_SEL(1) | 192 MUX_G2D_ACP1_SEL(1) | MUX_G2D_ACP_SEL(1); 193 set = MUX_C2C_SEL(1) | MUX_DMC_BUS_SEL(1) | MUX_DPHY_SEL(1) | 194 MUX_MPLL_SEL(0) | MUX_PWI_SEL(0) | MUX_G2D_ACP0_SEL(1) | 195 MUX_G2D_ACP1_SEL(1) | MUX_G2D_ACP_SEL(1); 196 197 clrsetbits_le32(&clk->src_dmc, clr_src_dmc, set); 198 199 /* Wait for mux change */ 200 while (readl(&clk->mux_stat_dmc) & MUX_STAT_DMC_CHANGING) 201 continue; 202 203 /* Set MPLL to 800MHz */ 204 set = SDIV(0) | PDIV(3) | MDIV(100) | FSEL(0) | PLL_ENABLE(1); 205 206 clrsetbits_le32(&clk->mpll_con0, clr_pll_con0, set); 207 208 /* Wait for PLL to be locked */ 209 while (!(readl(&clk->mpll_con0) & PLL_LOCKED_BIT)) 210 continue; 211 212 /* Switch back CMU_DMC mux */ 213 set = MUX_C2C_SEL(0) | MUX_DMC_BUS_SEL(0) | MUX_DPHY_SEL(0) | 214 MUX_MPLL_SEL(1) | MUX_PWI_SEL(8) | MUX_G2D_ACP0_SEL(0) | 215 MUX_G2D_ACP1_SEL(0) | MUX_G2D_ACP_SEL(0); 216 217 clrsetbits_le32(&clk->src_dmc, clr_src_dmc, set); 218 219 /* Wait for mux change */ 220 while (readl(&clk->mux_stat_dmc) & MUX_STAT_DMC_CHANGING) 221 continue; 222 223 /* CLK_DIV_DMC0 */ 224 clr = ACP_RATIO(7) | ACP_PCLK_RATIO(7) | DPHY_RATIO(7) | 225 DMC_RATIO(7) | DMCD_RATIO(7) | DMCP_RATIO(7); 226 /* 227 * For: 228 * MOUTdmc = 800 MHz 229 * MOUTdphy = 800 MHz 230 * 231 * aclk_acp = MOUTdmc / (ratio + 1) = 200 (3) 232 * pclk_acp = aclk_acp / (ratio + 1) = 100 (1) 233 * sclk_dphy = MOUTdphy / (ratio + 1) = 400 (1) 234 * sclk_dmc = MOUTdmc / (ratio + 1) = 400 (1) 235 * aclk_dmcd = sclk_dmc / (ratio + 1) = 200 (1) 236 * aclk_dmcp = aclk_dmcd / (ratio + 1) = 100 (1) 237 */ 238 set = ACP_RATIO(3) | ACP_PCLK_RATIO(1) | DPHY_RATIO(1) | 239 DMC_RATIO(1) | DMCD_RATIO(1) | DMCP_RATIO(1); 240 241 clrsetbits_le32(&clk->div_dmc0, clr, set); 242 243 /* Wait for divider ready status */ 244 while (readl(&clk->div_stat_dmc0) & DIV_STAT_DMC0_CHANGING) 245 continue; 246 247 /* CLK_DIV_DMC1 */ 248 clr = G2D_ACP_RATIO(15) | C2C_RATIO(7) | PWI_RATIO(15) | 249 C2C_ACLK_RATIO(7) | DVSEM_RATIO(127) | DPM_RATIO(127); 250 /* 251 * For: 252 * MOUTg2d = 800 MHz 253 * MOUTc2c = 800 Mhz 254 * MOUTpwi = 108 MHz 255 * 256 * sclk_g2d_acp = MOUTg2d / (ratio + 1) = 200 (3) 257 * sclk_c2c = MOUTc2c / (ratio + 1) = 400 (1) 258 * aclk_c2c = sclk_c2c / (ratio + 1) = 200 (1) 259 * sclk_pwi = MOUTpwi / (ratio + 1) = 18 (5) 260 */ 261 set = G2D_ACP_RATIO(3) | C2C_RATIO(1) | PWI_RATIO(5) | 262 C2C_ACLK_RATIO(1) | DVSEM_RATIO(1) | DPM_RATIO(1); 263 264 clrsetbits_le32(&clk->div_dmc1, clr, set); 265 266 /* Wait for divider ready status */ 267 while (readl(&clk->div_stat_dmc1) & DIV_STAT_DMC1_CHANGING) 268 continue; 269 270 /* CLK_SRC_PERIL0 */ 271 clr = UART0_SEL(15) | UART1_SEL(15) | UART2_SEL(15) | 272 UART3_SEL(15) | UART4_SEL(15); 273 /* 274 * Set CLK_SRC_PERIL0 clocks src to MPLL 275 * src values: 0(XXTI); 1(XusbXTI); 2(SCLK_HDMI24M); 3(SCLK_USBPHY0); 276 * 5(SCLK_HDMIPHY); 6(SCLK_MPLL_USER_T); 7(SCLK_EPLL); 277 * 8(SCLK_VPLL) 278 * 279 * Set all to SCLK_MPLL_USER_T 280 */ 281 set = UART0_SEL(6) | UART1_SEL(6) | UART2_SEL(6) | UART3_SEL(6) | 282 UART4_SEL(6); 283 284 clrsetbits_le32(&clk->src_peril0, clr, set); 285 286 /* CLK_DIV_PERIL0 */ 287 clr = UART0_RATIO(15) | UART1_RATIO(15) | UART2_RATIO(15) | 288 UART3_RATIO(15) | UART4_RATIO(15); 289 /* 290 * For MOUTuart0-4: 800MHz 291 * 292 * SCLK_UARTx = MOUTuartX / (ratio + 1) = 100 (7) 293 */ 294 set = UART0_RATIO(7) | UART1_RATIO(7) | UART2_RATIO(7) | 295 UART3_RATIO(7) | UART4_RATIO(7); 296 297 clrsetbits_le32(&clk->div_peril0, clr, set); 298 299 while (readl(&clk->div_stat_peril0) & DIV_STAT_PERIL0_CHANGING) 300 continue; 301 302 /* CLK_DIV_FSYS1 */ 303 clr = MMC0_RATIO(15) | MMC0_PRE_RATIO(255) | MMC1_RATIO(15) | 304 MMC1_PRE_RATIO(255); 305 /* 306 * For MOUTmmc0-3 = 800 MHz (MPLL) 307 * 308 * DOUTmmc1 = MOUTmmc1 / (ratio + 1) = 100 (7) 309 * sclk_mmc1 = DOUTmmc1 / (ratio + 1) = 50 (1) 310 * DOUTmmc0 = MOUTmmc0 / (ratio + 1) = 100 (7) 311 * sclk_mmc0 = DOUTmmc0 / (ratio + 1) = 50 (1) 312 */ 313 set = MMC0_RATIO(7) | MMC0_PRE_RATIO(1) | MMC1_RATIO(7) | 314 MMC1_PRE_RATIO(1); 315 316 clrsetbits_le32(&clk->div_fsys1, clr, set); 317 318 /* Wait for divider ready status */ 319 while (readl(&clk->div_stat_fsys1) & DIV_STAT_FSYS1_CHANGING) 320 continue; 321 322 /* CLK_DIV_FSYS2 */ 323 clr = MMC2_RATIO(15) | MMC2_PRE_RATIO(255) | MMC3_RATIO(15) | 324 MMC3_PRE_RATIO(255); 325 /* 326 * For MOUTmmc0-3 = 800 MHz (MPLL) 327 * 328 * DOUTmmc3 = MOUTmmc3 / (ratio + 1) = 100 (7) 329 * sclk_mmc3 = DOUTmmc3 / (ratio + 1) = 50 (1) 330 * DOUTmmc2 = MOUTmmc2 / (ratio + 1) = 100 (7) 331 * sclk_mmc2 = DOUTmmc2 / (ratio + 1) = 50 (1) 332 */ 333 set = MMC2_RATIO(7) | MMC2_PRE_RATIO(1) | MMC3_RATIO(7) | 334 MMC3_PRE_RATIO(1); 335 336 clrsetbits_le32(&clk->div_fsys2, clr, set); 337 338 /* Wait for divider ready status */ 339 while (readl(&clk->div_stat_fsys2) & DIV_STAT_FSYS2_CHANGING) 340 continue; 341 342 /* CLK_DIV_FSYS3 */ 343 clr = MMC4_RATIO(15) | MMC4_PRE_RATIO(255); 344 /* 345 * For MOUTmmc4 = 800 MHz (MPLL) 346 * 347 * DOUTmmc4 = MOUTmmc4 / (ratio + 1) = 100 (7) 348 * sclk_mmc4 = DOUTmmc4 / (ratio + 1) = 100 (0) 349 */ 350 set = MMC4_RATIO(7) | MMC4_PRE_RATIO(0); 351 352 clrsetbits_le32(&clk->div_fsys3, clr, set); 353 354 /* Wait for divider ready status */ 355 while (readl(&clk->div_stat_fsys3) & DIV_STAT_FSYS3_CHANGING) 356 continue; 357 358 return; 359 } 360 361 static void board_gpio_init(void) 362 { 363 /* eMMC Reset Pin */ 364 gpio_request(EXYNOS4X12_GPIO_K12, "eMMC Reset"); 365 366 gpio_cfg_pin(EXYNOS4X12_GPIO_K12, S5P_GPIO_FUNC(0x1)); 367 gpio_set_pull(EXYNOS4X12_GPIO_K12, S5P_GPIO_PULL_NONE); 368 gpio_set_drv(EXYNOS4X12_GPIO_K12, S5P_GPIO_DRV_4X); 369 370 /* Enable FAN (Odroid U3) */ 371 gpio_request(EXYNOS4X12_GPIO_D00, "FAN Control"); 372 373 gpio_set_pull(EXYNOS4X12_GPIO_D00, S5P_GPIO_PULL_UP); 374 gpio_set_drv(EXYNOS4X12_GPIO_D00, S5P_GPIO_DRV_4X); 375 gpio_direction_output(EXYNOS4X12_GPIO_D00, 1); 376 377 /* OTG Vbus output (Odroid U3+) */ 378 gpio_request(EXYNOS4X12_GPIO_L20, "OTG Vbus"); 379 380 gpio_set_pull(EXYNOS4X12_GPIO_L20, S5P_GPIO_PULL_NONE); 381 gpio_set_drv(EXYNOS4X12_GPIO_L20, S5P_GPIO_DRV_4X); 382 gpio_direction_output(EXYNOS4X12_GPIO_L20, 0); 383 384 /* OTG INT (Odroid U3+) */ 385 gpio_request(EXYNOS4X12_GPIO_X31, "OTG INT"); 386 387 gpio_set_pull(EXYNOS4X12_GPIO_X31, S5P_GPIO_PULL_UP); 388 gpio_set_drv(EXYNOS4X12_GPIO_X31, S5P_GPIO_DRV_4X); 389 gpio_direction_input(EXYNOS4X12_GPIO_X31); 390 391 /* Blue LED (Odroid X2/U2/U3) */ 392 gpio_request(EXYNOS4X12_GPIO_C10, "Blue LED"); 393 394 gpio_direction_output(EXYNOS4X12_GPIO_C10, 0); 395 396 #ifdef CONFIG_CMD_USB 397 /* USB3503A Reference frequency */ 398 gpio_request(EXYNOS4X12_GPIO_X30, "USB3503A RefFreq"); 399 400 /* USB3503A Connect */ 401 gpio_request(EXYNOS4X12_GPIO_X34, "USB3503A Connect"); 402 403 /* USB3503A Reset */ 404 gpio_request(EXYNOS4X12_GPIO_X35, "USB3503A Reset"); 405 #endif 406 } 407 408 int exynos_early_init_f(void) 409 { 410 board_clock_init(); 411 412 return 0; 413 } 414 415 int exynos_init(void) 416 { 417 board_gpio_init(); 418 419 return 0; 420 } 421 422 int exynos_power_init(void) 423 { 424 const char *mmc_regulators[] = { 425 "VDDQ_EMMC_1.8V", 426 "VDDQ_EMMC_2.8V", 427 "TFLASH_2.8V", 428 NULL, 429 }; 430 431 if (regulator_list_autoset(mmc_regulators, NULL, true)) 432 pr_err("Unable to init all mmc regulators"); 433 434 return 0; 435 } 436 437 #ifdef CONFIG_USB_GADGET 438 static int s5pc210_phy_control(int on) 439 { 440 struct udevice *dev; 441 int ret; 442 443 ret = regulator_get_by_platname("VDD_UOTG_3.0V", &dev); 444 if (ret) { 445 pr_err("Regulator get error: %d", ret); 446 return ret; 447 } 448 449 if (on) 450 return regulator_set_mode(dev, OPMODE_ON); 451 else 452 return regulator_set_mode(dev, OPMODE_LPM); 453 } 454 455 struct dwc2_plat_otg_data s5pc210_otg_data = { 456 .phy_control = s5pc210_phy_control, 457 .regs_phy = EXYNOS4X12_USBPHY_BASE, 458 .regs_otg = EXYNOS4X12_USBOTG_BASE, 459 .usb_phy_ctrl = EXYNOS4X12_USBPHY_CONTROL, 460 .usb_flags = PHY0_SLEEP, 461 }; 462 #endif 463 464 #if defined(CONFIG_USB_GADGET) || defined(CONFIG_CMD_USB) 465 466 int board_usb_init(int index, enum usb_init_type init) 467 { 468 #ifdef CONFIG_CMD_USB 469 struct udevice *dev; 470 int ret; 471 472 /* Set Ref freq 0 => 24MHz, 1 => 26MHz*/ 473 /* Odroid Us have it at 24MHz, Odroid Xs at 26MHz */ 474 if (gd->board_type == ODROID_TYPE_U3) 475 gpio_direction_output(EXYNOS4X12_GPIO_X30, 0); 476 else 477 gpio_direction_output(EXYNOS4X12_GPIO_X30, 1); 478 479 /* Disconnect, Reset, Connect */ 480 gpio_direction_output(EXYNOS4X12_GPIO_X34, 0); 481 gpio_direction_output(EXYNOS4X12_GPIO_X35, 0); 482 gpio_direction_output(EXYNOS4X12_GPIO_X35, 1); 483 gpio_direction_output(EXYNOS4X12_GPIO_X34, 1); 484 485 /* Power off and on BUCK8 for LAN9730 */ 486 debug("LAN9730 - Turning power buck 8 OFF and ON.\n"); 487 488 ret = regulator_get_by_platname("VCC_P3V3_2.85V", &dev); 489 if (ret) { 490 pr_err("Regulator get error: %d", ret); 491 return ret; 492 } 493 494 ret = regulator_set_enable(dev, true); 495 if (ret) { 496 pr_err("Regulator %s enable setting error: %d", dev->name, ret); 497 return ret; 498 } 499 500 ret = regulator_set_value(dev, 750000); 501 if (ret) { 502 pr_err("Regulator %s value setting error: %d", dev->name, ret); 503 return ret; 504 } 505 506 ret = regulator_set_value(dev, 3300000); 507 if (ret) { 508 pr_err("Regulator %s value setting error: %d", dev->name, ret); 509 return ret; 510 } 511 #endif 512 debug("USB_udc_probe\n"); 513 return dwc2_udc_probe(&s5pc210_otg_data); 514 } 515 #endif 516