board/st/stm32mp1/stm32mp1.c

   1 // SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
   2 /*
   3  * Copyright (C) 2018, STMicroelectronics - All Rights Reserved
   4  */
   5 #include <common.h>
   6 #include <adc.h>
   7 #include <bootm.h>
   8 #include <clk.h>
   9 #include <config.h>
  10 #include <dm.h>
  11 #include <env.h>
  12 #include <env_internal.h>
  13 #include <g_dnl.h>
  14 #include <generic-phy.h>
  15 #include <hang.h>
  16 #include <i2c.h>
  17 #include <init.h>
  18 #include <led.h>
  19 #include <malloc.h>
  20 #include <misc.h>
  21 #include <mtd_node.h>
  22 #include <netdev.h>
  23 #include <phy.h>
  24 #include <remoteproc.h>
  25 #include <reset.h>
  26 #include <syscon.h>
  27 #include <usb.h>
  28 #include <watchdog.h>
  29 #include <asm/io.h>
  30 #include <asm/gpio.h>
  31 #include <asm/arch/stm32.h>
  32 #include <asm/arch/sys_proto.h>
  33 #include <jffs2/load_kernel.h>
  34 #include <linux/err.h>
  35 #include <linux/iopoll.h>
  36 #include <power/regulator.h>
  37 #include <usb/dwc2_udc.h>
  38
  39 /* SYSCFG registers */
  40 #define SYSCFG_BOOTR            0x00
  41 #define SYSCFG_PMCSETR          0x04
  42 #define SYSCFG_IOCTRLSETR       0x18
  43 #define SYSCFG_ICNR             0x1C
  44 #define SYSCFG_CMPCR            0x20
  45 #define SYSCFG_CMPENSETR        0x24
  46 #define SYSCFG_PMCCLRR          0x44
  47
  48 #define SYSCFG_BOOTR_BOOT_MASK          GENMASK(2, 0)
  49 #define SYSCFG_BOOTR_BOOTPD_SHIFT       4
  50
  51 #define SYSCFG_IOCTRLSETR_HSLVEN_TRACE          BIT(0)
  52 #define SYSCFG_IOCTRLSETR_HSLVEN_QUADSPI        BIT(1)
  53 #define SYSCFG_IOCTRLSETR_HSLVEN_ETH            BIT(2)
  54 #define SYSCFG_IOCTRLSETR_HSLVEN_SDMMC          BIT(3)
  55 #define SYSCFG_IOCTRLSETR_HSLVEN_SPI            BIT(4)
  56
  57 #define SYSCFG_CMPCR_SW_CTRL            BIT(1)
  58 #define SYSCFG_CMPCR_READY              BIT(8)
  59
  60 #define SYSCFG_CMPENSETR_MPU_EN         BIT(0)
  61
  62 #define SYSCFG_PMCSETR_ETH_CLK_SEL      BIT(16)
  63 #define SYSCFG_PMCSETR_ETH_REF_CLK_SEL  BIT(17)
  64
  65 #define SYSCFG_PMCSETR_ETH_SELMII       BIT(20)
  66
  67 #define SYSCFG_PMCSETR_ETH_SEL_MASK     GENMASK(23, 21)
  68 #define SYSCFG_PMCSETR_ETH_SEL_GMII_MII 0
  69 #define SYSCFG_PMCSETR_ETH_SEL_RGMII    BIT(21)
  70 #define SYSCFG_PMCSETR_ETH_SEL_RMII     BIT(23)
  71
  72 /*
  73  * Get a global data pointer
  74  */
  75 DECLARE_GLOBAL_DATA_PTR;
  76
  77 #define USB_LOW_THRESHOLD_UV            200000
  78 #define USB_WARNING_LOW_THRESHOLD_UV    660000
  79 #define USB_START_LOW_THRESHOLD_UV      1230000
  80 #define USB_START_HIGH_THRESHOLD_UV     2150000
  81
  82 int checkboard(void)
  83 {
  84         int ret;
  85         char *mode;
  86         u32 otp;
  87         struct udevice *dev;
  88         const char *fdt_compat;
  89         int fdt_compat_len;
  90
  91         if (IS_ENABLED(CONFIG_TFABOOT))
  92                 mode = "trusted";
  93         else
  94                 mode = "basic";
  95
  96         printf("Board: stm32mp1 in %s mode", mode);
  97         fdt_compat = fdt_getprop(gd->fdt_blob, 0, "compatible",
  98                                  &fdt_compat_len);
  99         if (fdt_compat && fdt_compat_len)
 100                 printf(" (%s)", fdt_compat);
 101         puts("\n");
 102
 103         /* display the STMicroelectronics board identification */
 104         if (CONFIG_IS_ENABLED(CMD_STBOARD)) {
 105                 ret = uclass_get_device_by_driver(UCLASS_MISC,
 106                                                   DM_GET_DRIVER(stm32mp_bsec),
 107                                                   &dev);
 108                 if (!ret)
 109                         ret = misc_read(dev, STM32_BSEC_SHADOW(BSEC_OTP_BOARD),
 110                                         &otp, sizeof(otp));
 111                 if (ret > 0 && otp)
 112                         printf("Board: MB%04x Var%d.%d Rev.%c-%02d\n",
 113                                otp >> 16,
 114                                (otp >> 12) & 0xF,
 115                                (otp >> 4) & 0xF,
 116                                ((otp >> 8) & 0xF) - 1 + 'A',
 117                                otp & 0xF);
 118         }
 119
 120         return 0;
 121 }
 122
 123 static void board_key_check(void)
 124 {
 125 #if defined(CONFIG_FASTBOOT) || defined(CONFIG_CMD_STM32PROG)
 126         ofnode node;
 127         struct gpio_desc gpio;
 128         enum forced_boot_mode boot_mode = BOOT_NORMAL;
 129
 130         node = ofnode_path("/config");
 131         if (!ofnode_valid(node)) {
 132                 debug("%s: no /config node?\n", __func__);
 133                 return;
 134         }
 135 #ifdef CONFIG_FASTBOOT
 136         if (gpio_request_by_name_nodev(node, "st,fastboot-gpios", 0,
 137                                        &gpio, GPIOD_IS_IN)) {
 138                 debug("%s: could not find a /config/st,fastboot-gpios\n",
 139                       __func__);
 140         } else {
 141                 if (dm_gpio_get_value(&gpio)) {
 142                         puts("Fastboot key pressed, ");
 143                         boot_mode = BOOT_FASTBOOT;
 144                 }
 145
 146                 dm_gpio_free(NULL, &gpio);
 147         }
 148 #endif
 149 #ifdef CONFIG_CMD_STM32PROG
 150         if (gpio_request_by_name_nodev(node, "st,stm32prog-gpios", 0,
 151                                        &gpio, GPIOD_IS_IN)) {
 152                 debug("%s: could not find a /config/st,stm32prog-gpios\n",
 153                       __func__);
 154         } else {
 155                 if (dm_gpio_get_value(&gpio)) {
 156                         puts("STM32Programmer key pressed, ");
 157                         boot_mode = BOOT_STM32PROG;
 158                 }
 159                 dm_gpio_free(NULL, &gpio);
 160         }
 161 #endif
 162
 163         if (boot_mode != BOOT_NORMAL) {
 164                 puts("entering download mode...\n");
 165                 clrsetbits_le32(TAMP_BOOT_CONTEXT,
 166                                 TAMP_BOOT_FORCED_MASK,
 167                                 boot_mode);
 168         }
 169 #endif
 170 }
 171
 172 #if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG)
 173
 174 /* STMicroelectronics STUSB1600 Type-C controller */
 175 #define STUSB1600_CC_CONNECTION_STATUS          0x0E
 176
 177 /* STUSB1600_CC_CONNECTION_STATUS bitfields */
 178 #define STUSB1600_CC_ATTACH                     BIT(0)
 179
 180 static int stusb1600_init(struct udevice **dev_stusb1600)
 181 {
 182         ofnode node;
 183         struct udevice *dev, *bus;
 184         int ret;
 185         u32 chip_addr;
 186
 187         *dev_stusb1600 = NULL;
 188
 189         /* if node stusb1600 is present, means DK1 or DK2 board */
 190         node = ofnode_by_compatible(ofnode_null(), "st,stusb1600");
 191         if (!ofnode_valid(node))
 192                 return -ENODEV;
 193
 194         ret = ofnode_read_u32(node, "reg", &chip_addr);
 195         if (ret)
 196                 return -EINVAL;
 197
 198         ret = uclass_get_device_by_ofnode(UCLASS_I2C, ofnode_get_parent(node),
 199                                           &bus);
 200         if (ret) {
 201                 printf("bus for stusb1600 not found\n");
 202                 return -ENODEV;
 203         }
 204
 205         ret = dm_i2c_probe(bus, chip_addr, 0, &dev);
 206         if (!ret)
 207                 *dev_stusb1600 = dev;
 208
 209         return ret;
 210 }
 211
 212 static int stusb1600_cable_connected(struct udevice *dev)
 213 {
 214         u8 status;
 215
 216         if (dm_i2c_read(dev, STUSB1600_CC_CONNECTION_STATUS, &status, 1))
 217                 return 0;
 218
 219         return status & STUSB1600_CC_ATTACH;
 220 }
 221
 222 #include <usb/dwc2_udc.h>
 223 int g_dnl_board_usb_cable_connected(void)
 224 {
 225         struct udevice *stusb1600;
 226         struct udevice *dwc2_udc_otg;
 227         int ret;
 228
 229         if (!stusb1600_init(&stusb1600))
 230                 return stusb1600_cable_connected(stusb1600);
 231
 232         ret = uclass_get_device_by_driver(UCLASS_USB_GADGET_GENERIC,
 233                                           DM_GET_DRIVER(dwc2_udc_otg),
 234                                           &dwc2_udc_otg);
 235         if (!ret)
 236                 debug("dwc2_udc_otg init failed\n");
 237
 238         return dwc2_udc_B_session_valid(dwc2_udc_otg);
 239 }
 240
 241 #define STM32MP1_G_DNL_DFU_PRODUCT_NUM 0xdf11
 242 #define STM32MP1_G_DNL_FASTBOOT_PRODUCT_NUM 0x0afb
 243
 244 int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name)
 245 {
 246         if (!strcmp(name, "usb_dnl_dfu"))
 247                 put_unaligned(STM32MP1_G_DNL_DFU_PRODUCT_NUM, &dev->idProduct);
 248         else if (!strcmp(name, "usb_dnl_fastboot"))
 249                 put_unaligned(STM32MP1_G_DNL_FASTBOOT_PRODUCT_NUM,
 250                               &dev->idProduct);
 251         else
 252                 put_unaligned(CONFIG_USB_GADGET_PRODUCT_NUM, &dev->idProduct);
 253
 254         return 0;
 255 }
 256
 257 #endif /* CONFIG_USB_GADGET */
 258
 259 static int get_led(struct udevice **dev, char *led_string)
 260 {
 261         char *led_name;
 262         int ret;
 263
 264         led_name = fdtdec_get_config_string(gd->fdt_blob, led_string);
 265         if (!led_name) {
 266                 pr_debug("%s: could not find %s config string\n",
 267                          __func__, led_string);
 268                 return -ENOENT;
 269         }
 270         ret = led_get_by_label(led_name, dev);
 271         if (ret) {
 272                 debug("%s: get=%d\n", __func__, ret);
 273                 return ret;
 274         }
 275
 276         return 0;
 277 }
 278
 279 static int setup_led(enum led_state_t cmd)
 280 {
 281         struct udevice *dev;
 282         int ret;
 283
 284         if (!CONFIG_IS_ENABLED(LED))
 285                 return 0;
 286
 287         ret = get_led(&dev, "u-boot,boot-led");
 288         if (ret)
 289                 return ret;
 290
 291         ret = led_set_state(dev, cmd);
 292         return ret;
 293 }
 294
 295 static void __maybe_unused led_error_blink(u32 nb_blink)
 296 {
 297         int ret;
 298         struct udevice *led;
 299         u32 i;
 300
 301         if (!nb_blink)
 302                 return;
 303
 304         if (CONFIG_IS_ENABLED(LED)) {
 305                 ret = get_led(&led, "u-boot,error-led");
 306                 if (!ret) {
 307                         /* make u-boot,error-led blinking */
 308                         /* if U32_MAX and 125ms interval, for 17.02 years */
 309                         for (i = 0; i < 2 * nb_blink; i++) {
 310                                 led_set_state(led, LEDST_TOGGLE);
 311                                 mdelay(125);
 312                                 WATCHDOG_RESET();
 313                         }
 314                         led_set_state(led, LEDST_ON);
 315                 }
 316         }
 317
 318         /* infinite: the boot process must be stopped */
 319         if (nb_blink == U32_MAX)
 320                 hang();
 321 }
 322
 323 #ifdef CONFIG_ADC
 324 static int board_check_usb_power(void)
 325 {
 326         struct ofnode_phandle_args adc_args;
 327         struct udevice *adc;
 328         ofnode node;
 329         unsigned int raw;
 330         int max_uV = 0;
 331         int min_uV = USB_START_HIGH_THRESHOLD_UV;
 332         int ret, uV, adc_count;
 333         u32 nb_blink;
 334         u8 i;
 335         node = ofnode_path("/config");
 336         if (!ofnode_valid(node)) {
 337                 debug("%s: no /config node?\n", __func__);
 338                 return -ENOENT;
 339         }
 340
 341         /*
 342          * Retrieve the ADC channels devices and get measurement
 343          * for each of them
 344          */
 345         adc_count = ofnode_count_phandle_with_args(node, "st,adc_usb_pd",
 346                                                    "#io-channel-cells");
 347         if (adc_count < 0) {
 348                 if (adc_count == -ENOENT)
 349                         return 0;
 350
 351                 pr_err("%s: can't find adc channel (%d)\n", __func__,
 352                        adc_count);
 353
 354                 return adc_count;
 355         }
 356
 357         for (i = 0; i < adc_count; i++) {
 358                 if (ofnode_parse_phandle_with_args(node, "st,adc_usb_pd",
 359                                                    "#io-channel-cells", 0, i,
 360                                                    &adc_args)) {
 361                         pr_debug("%s: can't find /config/st,adc_usb_pd\n",
 362                                  __func__);
 363                         return 0;
 364                 }
 365
 366                 ret = uclass_get_device_by_ofnode(UCLASS_ADC, adc_args.node,
 367                                                   &adc);
 368
 369                 if (ret) {
 370                         pr_err("%s: Can't get adc device(%d)\n", __func__,
 371                                ret);
 372                         return ret;
 373                 }
 374
 375                 ret = adc_channel_single_shot(adc->name, adc_args.args[0],
 376                                               &raw);
 377                 if (ret) {
 378                         pr_err("%s: single shot failed for %s[%d]!\n",
 379                                __func__, adc->name, adc_args.args[0]);
 380                         return ret;
 381                 }
 382                 /* Convert to uV */
 383                 if (!adc_raw_to_uV(adc, raw, &uV)) {
 384                         if (uV > max_uV)
 385                                 max_uV = uV;
 386                         if (uV < min_uV)
 387                                 min_uV = uV;
 388                         pr_debug("%s: %s[%02d] = %u, %d uV\n", __func__,
 389                                  adc->name, adc_args.args[0], raw, uV);
 390                 } else {
 391                         pr_err("%s: Can't get uV value for %s[%d]\n",
 392                                __func__, adc->name, adc_args.args[0]);
 393                 }
 394         }
 395
 396         /*
 397          * If highest value is inside 1.23 Volts and 2.10 Volts, that means
 398          * board is plugged on an USB-C 3A power supply and boot process can
 399          * continue.
 400          */
 401         if (max_uV > USB_START_LOW_THRESHOLD_UV &&
 402             max_uV <= USB_START_HIGH_THRESHOLD_UV &&
 403             min_uV <= USB_LOW_THRESHOLD_UV)
 404                 return 0;
 405
 406         pr_err("****************************************************\n");
 407
 408         /*
 409          * If highest and lowest value are either both below
 410          * USB_LOW_THRESHOLD_UV or both above USB_LOW_THRESHOLD_UV, that
 411          * means USB TYPE-C is in unattached mode, this is an issue, make
 412          * u-boot,error-led blinking and stop boot process.
 413          */
 414         if ((max_uV > USB_LOW_THRESHOLD_UV &&
 415              min_uV > USB_LOW_THRESHOLD_UV) ||
 416              (max_uV <= USB_LOW_THRESHOLD_UV &&
 417              min_uV <= USB_LOW_THRESHOLD_UV)) {
 418                 pr_err("* ERROR USB TYPE-C connection in unattached mode   *\n");
 419                 pr_err("* Check that USB TYPE-C cable is correctly plugged *\n");
 420                 /* with 125ms interval, led will blink for 17.02 years ....*/
 421                 nb_blink = U32_MAX;
 422         }
 423
 424         if (max_uV > USB_LOW_THRESHOLD_UV &&
 425             max_uV <= USB_WARNING_LOW_THRESHOLD_UV &&
 426             min_uV <= USB_LOW_THRESHOLD_UV) {
 427                 pr_err("*        WARNING 500mA power supply detected       *\n");
 428                 nb_blink = 2;
 429         }
 430
 431         if (max_uV > USB_WARNING_LOW_THRESHOLD_UV &&
 432             max_uV <= USB_START_LOW_THRESHOLD_UV &&
 433             min_uV <= USB_LOW_THRESHOLD_UV) {
 434                 pr_err("*       WARNING 1.5mA power supply detected        *\n");
 435                 nb_blink = 3;
 436         }
 437
 438         /*
 439          * If highest value is above 2.15 Volts that means that the USB TypeC
 440          * supplies more than 3 Amp, this is not compliant with TypeC specification
 441          */
 442         if (max_uV > USB_START_HIGH_THRESHOLD_UV) {
 443                 pr_err("*      USB TYPE-C charger not compliant with       *\n");
 444                 pr_err("*                   specification                  *\n");
 445                 pr_err("****************************************************\n\n");
 446                 /* with 125ms interval, led will blink for 17.02 years ....*/
 447                 nb_blink = U32_MAX;
 448         } else {
 449                 pr_err("*     Current too low, use a 3A power supply!      *\n");
 450                 pr_err("****************************************************\n\n");
 451         }
 452
 453         led_error_blink(nb_blink);
 454
 455         return 0;
 456 }
 457 #endif /* CONFIG_ADC */
 458
 459 static void sysconf_init(void)
 460 {
 461 #ifndef CONFIG_TFABOOT
 462         u8 *syscfg;
 463 #ifdef CONFIG_DM_REGULATOR
 464         struct udevice *pwr_dev;
 465         struct udevice *pwr_reg;
 466         struct udevice *dev;
 467         u32 otp = 0;
 468 #endif
 469         int ret;
 470         u32 bootr, val;
 471
 472         syscfg = (u8 *)syscon_get_first_range(STM32MP_SYSCON_SYSCFG);
 473
 474         /* interconnect update : select master using the port 1 */
 475         /* LTDC = AXI_M9 */
 476         /* GPU  = AXI_M8 */
 477         /* today information is hardcoded in U-Boot */
 478         writel(BIT(9), syscfg + SYSCFG_ICNR);
 479
 480         /* disable Pull-Down for boot pin connected to VDD */
 481         bootr = readl(syscfg + SYSCFG_BOOTR);
 482         bootr &= ~(SYSCFG_BOOTR_BOOT_MASK << SYSCFG_BOOTR_BOOTPD_SHIFT);
 483         bootr |= (bootr & SYSCFG_BOOTR_BOOT_MASK) << SYSCFG_BOOTR_BOOTPD_SHIFT;
 484         writel(bootr, syscfg + SYSCFG_BOOTR);
 485
 486 #ifdef CONFIG_DM_REGULATOR
 487         /* High Speed Low Voltage Pad mode Enable for SPI, SDMMC, ETH, QSPI
 488          * and TRACE. Needed above ~50MHz and conditioned by AFMUX selection.
 489          * The customer will have to disable this for low frequencies
 490          * or if AFMUX is selected but the function not used, typically for
 491          * TRACE. Otherwise, impact on power consumption.
 492          *
 493          * WARNING:
 494          *   enabling High Speed mode while VDD>2.7V
 495          *   with the OTP product_below_2v5 (OTP 18, BIT 13)
 496          *   erroneously set to 1 can damage the IC!
 497          *   => U-Boot set the register only if VDD < 2.7V (in DT)
 498          *      but this value need to be consistent with board design
 499          */
 500         ret = uclass_get_device_by_driver(UCLASS_PMIC,
 501                                           DM_GET_DRIVER(stm32mp_pwr_pmic),
 502                                           &pwr_dev);
 503         if (!ret) {
 504                 ret = uclass_get_device_by_driver(UCLASS_MISC,
 505                                                   DM_GET_DRIVER(stm32mp_bsec),
 506                                                   &dev);
 507                 if (ret) {
 508                         pr_err("Can't find stm32mp_bsec driver\n");
 509                         return;
 510                 }
 511
 512                 ret = misc_read(dev, STM32_BSEC_SHADOW(18), &otp, 4);
 513                 if (ret > 0)
 514                         otp = otp & BIT(13);
 515
 516                 /* get VDD = vdd-supply */
 517                 ret = device_get_supply_regulator(pwr_dev, "vdd-supply",
 518                                                   &pwr_reg);
 519
 520                 /* check if VDD is Low Voltage */
 521                 if (!ret) {
 522                         if (regulator_get_value(pwr_reg) < 2700000) {
 523                                 writel(SYSCFG_IOCTRLSETR_HSLVEN_TRACE |
 524                                        SYSCFG_IOCTRLSETR_HSLVEN_QUADSPI |
 525                                        SYSCFG_IOCTRLSETR_HSLVEN_ETH |
 526                                        SYSCFG_IOCTRLSETR_HSLVEN_SDMMC |
 527                                        SYSCFG_IOCTRLSETR_HSLVEN_SPI,
 528                                        syscfg + SYSCFG_IOCTRLSETR);
 529
 530                                 if (!otp)
 531                                         pr_err("product_below_2v5=0: HSLVEN protected by HW\n");
 532                         } else {
 533                                 if (otp)
 534                                         pr_err("product_below_2v5=1: HSLVEN update is destructive, no update as VDD>2.7V\n");
 535                         }
 536                 } else {
 537                         debug("VDD unknown");
 538                 }
 539         }
 540 #endif
 541
 542         /* activate automatic I/O compensation
 543          * warning: need to ensure CSI enabled and ready in clock driver
 544          */
 545         writel(SYSCFG_CMPENSETR_MPU_EN, syscfg + SYSCFG_CMPENSETR);
 546
 547         /* poll until ready (1s timeout) */
 548         ret = readl_poll_timeout(syscfg + SYSCFG_CMPCR, val,
 549                                  val & SYSCFG_CMPCR_READY,
 550                                  1000000);
 551         if (ret) {
 552                 pr_err("SYSCFG: I/O compensation failed, timeout.\n");
 553                 led_error_blink(10);
 554         }
 555
 556         clrbits_le32(syscfg + SYSCFG_CMPCR, SYSCFG_CMPCR_SW_CTRL);
 557 #endif
 558 }
 559
 560 #ifdef CONFIG_DM_REGULATOR
 561 /* Fix to make I2C1 usable on DK2 for touchscreen usage in kernel */
 562 static int dk2_i2c1_fix(void)
 563 {
 564         ofnode node;
 565         struct gpio_desc hdmi, audio;
 566         int ret = 0;
 567
 568         node = ofnode_path("/soc/i2c@40012000/hdmi-transmitter@39");
 569         if (!ofnode_valid(node)) {
 570                 pr_debug("%s: no hdmi-transmitter@39 ?\n", __func__);
 571                 return -ENOENT;
 572         }
 573
 574         if (gpio_request_by_name_nodev(node, "reset-gpios", 0,
 575                                        &hdmi, GPIOD_IS_OUT)) {
 576                 pr_debug("%s: could not find reset-gpios\n",
 577                          __func__);
 578                 return -ENOENT;
 579         }
 580
 581         node = ofnode_path("/soc/i2c@40012000/cs42l51@4a");
 582         if (!ofnode_valid(node)) {
 583                 pr_debug("%s: no cs42l51@4a ?\n", __func__);
 584                 return -ENOENT;
 585         }
 586
 587         if (gpio_request_by_name_nodev(node, "reset-gpios", 0,
 588                                        &audio, GPIOD_IS_OUT)) {
 589                 pr_debug("%s: could not find reset-gpios\n",
 590                          __func__);
 591                 return -ENOENT;
 592         }
 593
 594         /* before power up, insure that HDMI and AUDIO IC is under reset */
 595         ret = dm_gpio_set_value(&hdmi, 1);
 596         if (ret) {
 597                 pr_err("%s: can't set_value for hdmi_nrst gpio", __func__);
 598                 goto error;
 599         }
 600         ret = dm_gpio_set_value(&audio, 1);
 601         if (ret) {
 602                 pr_err("%s: can't set_value for audio_nrst gpio", __func__);
 603                 goto error;
 604         }
 605
 606         /* power-up audio IC */
 607         regulator_autoset_by_name("v1v8_audio", NULL);
 608
 609         /* power-up HDMI IC */
 610         regulator_autoset_by_name("v1v2_hdmi", NULL);
 611         regulator_autoset_by_name("v3v3_hdmi", NULL);
 612
 613 error:
 614         return ret;
 615 }
 616
 617 static bool board_is_dk2(void)
 618 {
 619         if (CONFIG_IS_ENABLED(TARGET_ST_STM32MP15x) &&
 620             of_machine_is_compatible("st,stm32mp157c-dk2"))
 621                 return true;
 622
 623         return false;
 624 }
 625 #endif
 626
 627 static bool board_is_ev1(void)
 628 {
 629         if (CONFIG_IS_ENABLED(TARGET_ST_STM32MP15x) &&
 630             (of_machine_is_compatible("st,stm32mp157a-ev1") ||
 631              of_machine_is_compatible("st,stm32mp157c-ev1") ||
 632              of_machine_is_compatible("st,stm32mp157d-ev1") ||
 633              of_machine_is_compatible("st,stm32mp157f-ev1")))
 634                 return true;
 635
 636         return false;
 637 }
 638
 639 /* touchscreen driver: only used for pincontrol configuration */
 640 static const struct udevice_id goodix_ids[] = {
 641         { .compatible = "goodix,gt9147", },
 642         { }
 643 };
 644
 645 U_BOOT_DRIVER(goodix) = {
 646         .name           = "goodix",
 647         .id             = UCLASS_NOP,
 648         .of_match       = goodix_ids,
 649 };
 650
 651 static void board_ev1_init(void)
 652 {
 653         struct udevice *dev;
 654
 655         /* configure IRQ line on EV1 for touchscreen before LCD reset */
 656         uclass_get_device_by_driver(UCLASS_NOP, DM_GET_DRIVER(goodix), &dev);
 657 }
 658
 659 /* board dependent setup after realloc */
 660 int board_init(void)
 661 {
 662         struct udevice *dev;
 663
 664         /* address of boot parameters */
 665         gd->bd->bi_boot_params = STM32_DDR_BASE + 0x100;
 666
 667         /* probe all PINCTRL for hog */
 668         for (uclass_first_device(UCLASS_PINCTRL, &dev);
 669              dev;
 670              uclass_next_device(&dev)) {
 671                 pr_debug("probe pincontrol = %s\n", dev->name);
 672         }
 673
 674         board_key_check();
 675
 676         if (board_is_ev1())
 677                 board_ev1_init();
 678
 679 #ifdef CONFIG_DM_REGULATOR
 680         if (board_is_dk2())
 681                 dk2_i2c1_fix();
 682
 683         regulators_enable_boot_on(_DEBUG);
 684 #endif
 685
 686         sysconf_init();
 687
 688         if (CONFIG_IS_ENABLED(LED))
 689                 led_default_state();
 690
 691         setup_led(LEDST_ON);
 692
 693         return 0;
 694 }
 695
 696 int board_late_init(void)
 697 {
 698 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 699         const void *fdt_compat;
 700         int fdt_compat_len;
 701         int ret;
 702         u32 otp;
 703         struct udevice *dev;
 704         char buf[10];
 705
 706         fdt_compat = fdt_getprop(gd->fdt_blob, 0, "compatible",
 707                                  &fdt_compat_len);
 708         if (fdt_compat && fdt_compat_len) {
 709                 if (strncmp(fdt_compat, "st,", 3) != 0) {
 710                         env_set("board_name", fdt_compat);
 711                 } else {
 712                         char dtb_name[256];
 713                         int buf_len = sizeof(dtb_name);
 714
 715                         env_set("board_name", fdt_compat + 3);
 716
 717                         strncpy(dtb_name, fdt_compat + 3, buf_len);
 718                         buf_len -= strlen(fdt_compat + 3);
 719                         strncat(dtb_name, ".dtb", buf_len);
 720                         env_set("fdtfile", dtb_name);
 721                 }
 722         }
 723         ret = uclass_get_device_by_driver(UCLASS_MISC,
 724                                           DM_GET_DRIVER(stm32mp_bsec),
 725                                           &dev);
 726
 727         if (!ret)
 728                 ret = misc_read(dev, STM32_BSEC_SHADOW(BSEC_OTP_BOARD),
 729                                 &otp, sizeof(otp));
 730         if (!ret && otp) {
 731                 snprintf(buf, sizeof(buf), "0x%04x", otp >> 16);
 732                 env_set("board_id", buf);
 733
 734                 snprintf(buf, sizeof(buf), "0x%04x",
 735                          ((otp >> 8) & 0xF) - 1 + 0xA);
 736                 env_set("board_rev", buf);
 737         }
 738 #endif
 739
 740 #ifdef CONFIG_ADC
 741         /* for DK1/DK2 boards */
 742         board_check_usb_power();
 743 #endif /* CONFIG_ADC */
 744
 745         return 0;
 746 }
 747
 748 void board_quiesce_devices(void)
 749 {
 750         setup_led(LEDST_OFF);
 751 }
 752
 753 /* eth init function : weak called in eqos driver */
 754 int board_interface_eth_init(struct udevice *dev,
 755                              phy_interface_t interface_type)
 756 {
 757         u8 *syscfg;
 758         u32 value;
 759         bool eth_clk_sel_reg = false;
 760         bool eth_ref_clk_sel_reg = false;
 761
 762         /* Gigabit Ethernet 125MHz clock selection. */
 763         eth_clk_sel_reg = dev_read_bool(dev, "st,eth_clk_sel");
 764
 765         /* Ethernet 50Mhz RMII clock selection */
 766         eth_ref_clk_sel_reg =
 767                 dev_read_bool(dev, "st,eth_ref_clk_sel");
 768
 769         syscfg = (u8 *)syscon_get_first_range(STM32MP_SYSCON_SYSCFG);
 770
 771         if (!syscfg)
 772                 return -ENODEV;
 773
 774         switch (interface_type) {
 775         case PHY_INTERFACE_MODE_MII:
 776                 value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII |
 777                         SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
 778                 debug("%s: PHY_INTERFACE_MODE_MII\n", __func__);
 779                 break;
 780         case PHY_INTERFACE_MODE_GMII:
 781                 if (eth_clk_sel_reg)
 782                         value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII |
 783                                 SYSCFG_PMCSETR_ETH_CLK_SEL;
 784                 else
 785                         value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII;
 786                 debug("%s: PHY_INTERFACE_MODE_GMII\n", __func__);
 787                 break;
 788         case PHY_INTERFACE_MODE_RMII:
 789                 if (eth_ref_clk_sel_reg)
 790                         value = SYSCFG_PMCSETR_ETH_SEL_RMII |
 791                                 SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
 792                 else
 793                         value = SYSCFG_PMCSETR_ETH_SEL_RMII;
 794                 debug("%s: PHY_INTERFACE_MODE_RMII\n", __func__);
 795                 break;
 796         case PHY_INTERFACE_MODE_RGMII:
 797         case PHY_INTERFACE_MODE_RGMII_ID:
 798         case PHY_INTERFACE_MODE_RGMII_RXID:
 799         case PHY_INTERFACE_MODE_RGMII_TXID:
 800                 if (eth_clk_sel_reg)
 801                         value = SYSCFG_PMCSETR_ETH_SEL_RGMII |
 802                                 SYSCFG_PMCSETR_ETH_CLK_SEL;
 803                 else
 804                         value = SYSCFG_PMCSETR_ETH_SEL_RGMII;
 805                 debug("%s: PHY_INTERFACE_MODE_RGMII\n", __func__);
 806                 break;
 807         default:
 808                 debug("%s: Do not manage %d interface\n",
 809                       __func__, interface_type);
 810                 /* Do not manage others interfaces */
 811                 return -EINVAL;
 812         }
 813
 814         /* clear and set ETH configuration bits */
 815         writel(SYSCFG_PMCSETR_ETH_SEL_MASK | SYSCFG_PMCSETR_ETH_SELMII |
 816                SYSCFG_PMCSETR_ETH_REF_CLK_SEL | SYSCFG_PMCSETR_ETH_CLK_SEL,
 817                syscfg + SYSCFG_PMCCLRR);
 818         writel(value, syscfg + SYSCFG_PMCSETR);
 819
 820         return 0;
 821 }
 822
 823 enum env_location env_get_location(enum env_operation op, int prio)
 824 {
 825         u32 bootmode = get_bootmode();
 826
 827         if (prio)
 828                 return ENVL_UNKNOWN;
 829
 830         switch (bootmode & TAMP_BOOT_DEVICE_MASK) {
 831 #ifdef CONFIG_ENV_IS_IN_EXT4
 832         case BOOT_FLASH_SD:
 833         case BOOT_FLASH_EMMC:
 834                 return ENVL_EXT4;
 835 #endif
 836 #ifdef CONFIG_ENV_IS_IN_UBI
 837         case BOOT_FLASH_NAND:
 838         case BOOT_FLASH_SPINAND:
 839                 return ENVL_UBI;
 840 #endif
 841 #ifdef CONFIG_ENV_IS_IN_SPI_FLASH
 842         case BOOT_FLASH_NOR:
 843                 return ENVL_SPI_FLASH;
 844 #endif
 845         default:
 846                 return ENVL_NOWHERE;
 847         }
 848 }
 849
 850 #if defined(CONFIG_ENV_IS_IN_EXT4)
 851 const char *env_ext4_get_intf(void)
 852 {
 853         u32 bootmode = get_bootmode();
 854
 855         switch (bootmode & TAMP_BOOT_DEVICE_MASK) {
 856         case BOOT_FLASH_SD:
 857         case BOOT_FLASH_EMMC:
 858                 return "mmc";
 859         default:
 860                 return "";
 861         }
 862 }
 863
 864 const char *env_ext4_get_dev_part(void)
 865 {
 866         static char *const dev_part[] = {"0:auto", "1:auto", "2:auto"};
 867         u32 bootmode = get_bootmode();
 868
 869         return dev_part[(bootmode & TAMP_BOOT_INSTANCE_MASK) - 1];
 870 }
 871 #endif
 872
 873 #if defined(CONFIG_OF_BOARD_SETUP)
 874 int ft_board_setup(void *blob, bd_t *bd)
 875 {
 876 #ifdef CONFIG_FDT_FIXUP_PARTITIONS
 877         struct node_info nodes[] = {
 878                 { "st,stm32f469-qspi",          MTD_DEV_TYPE_NOR,  },
 879                 { "st,stm32f469-qspi",          MTD_DEV_TYPE_SPINAND},
 880                 { "st,stm32mp15-fmc2",          MTD_DEV_TYPE_NAND, },
 881         };
 882         fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
 883 #endif
 884
 885         return 0;
 886 }
 887 #endif
 888
 889 static void board_copro_image_process(ulong fw_image, size_t fw_size)
 890 {
 891         int ret, id = 0; /* Copro id fixed to 0 as only one coproc on mp1 */
 892
 893         if (!rproc_is_initialized())
 894                 if (rproc_init()) {
 895                         printf("Remote Processor %d initialization failed\n",
 896                                id);
 897                         return;
 898                 }
 899
 900         ret = rproc_load(id, fw_image, fw_size);
 901         printf("Load Remote Processor %d with data@addr=0x%08lx %u bytes:%s\n",
 902                id, fw_image, fw_size, ret ? " Failed!" : " Success!");
 903
 904         if (!ret)
 905                 rproc_start(id);
 906 }
 907
 908 U_BOOT_FIT_LOADABLE_HANDLER(IH_TYPE_COPRO, board_copro_image_process);