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 <i2c.h>
  16 #include <led.h>
  17 #include <misc.h>
  18 #include <mtd.h>
  19 #include <mtd_node.h>
  20 #include <netdev.h>
  21 #include <phy.h>
  22 #include <remoteproc.h>
  23 #include <reset.h>
  24 #include <syscon.h>
  25 #include <usb.h>
  26 #include <watchdog.h>
  27 #include <asm/io.h>
  28 #include <asm/gpio.h>
  29 #include <asm/arch/stm32.h>
  30 #include <asm/arch/sys_proto.h>
  31 #include <jffs2/load_kernel.h>
  32 #include <power/regulator.h>
  33 #include <usb/dwc2_udc.h>
  34
  35 /* SYSCFG registers */
  36 #define SYSCFG_BOOTR            0x00
  37 #define SYSCFG_PMCSETR          0x04
  38 #define SYSCFG_IOCTRLSETR       0x18
  39 #define SYSCFG_ICNR             0x1C
  40 #define SYSCFG_CMPCR            0x20
  41 #define SYSCFG_CMPENSETR        0x24
  42 #define SYSCFG_PMCCLRR          0x44
  43
  44 #define SYSCFG_BOOTR_BOOT_MASK          GENMASK(2, 0)
  45 #define SYSCFG_BOOTR_BOOTPD_SHIFT       4
  46
  47 #define SYSCFG_IOCTRLSETR_HSLVEN_TRACE          BIT(0)
  48 #define SYSCFG_IOCTRLSETR_HSLVEN_QUADSPI        BIT(1)
  49 #define SYSCFG_IOCTRLSETR_HSLVEN_ETH            BIT(2)
  50 #define SYSCFG_IOCTRLSETR_HSLVEN_SDMMC          BIT(3)
  51 #define SYSCFG_IOCTRLSETR_HSLVEN_SPI            BIT(4)
  52
  53 #define SYSCFG_CMPCR_SW_CTRL            BIT(1)
  54 #define SYSCFG_CMPCR_READY              BIT(8)
  55
  56 #define SYSCFG_CMPENSETR_MPU_EN         BIT(0)
  57
  58 #define SYSCFG_PMCSETR_ETH_CLK_SEL      BIT(16)
  59 #define SYSCFG_PMCSETR_ETH_REF_CLK_SEL  BIT(17)
  60
  61 #define SYSCFG_PMCSETR_ETH_SELMII       BIT(20)
  62
  63 #define SYSCFG_PMCSETR_ETH_SEL_MASK     GENMASK(23, 21)
  64 #define SYSCFG_PMCSETR_ETH_SEL_GMII_MII 0
  65 #define SYSCFG_PMCSETR_ETH_SEL_RGMII    BIT(21)
  66 #define SYSCFG_PMCSETR_ETH_SEL_RMII     BIT(23)
  67
  68 /*
  69  * Get a global data pointer
  70  */
  71 DECLARE_GLOBAL_DATA_PTR;
  72
  73 #define USB_LOW_THRESHOLD_UV            200000
  74 #define USB_WARNING_LOW_THRESHOLD_UV    660000
  75 #define USB_START_LOW_THRESHOLD_UV      1230000
  76 #define USB_START_HIGH_THRESHOLD_UV     2150000
  77
  78 int checkboard(void)
  79 {
  80         int ret;
  81         char *mode;
  82         u32 otp;
  83         struct udevice *dev;
  84         const char *fdt_compat;
  85         int fdt_compat_len;
  86
  87         if (IS_ENABLED(CONFIG_STM32MP1_OPTEE))
  88                 mode = "trusted with OP-TEE";
  89         else if (IS_ENABLED(CONFIG_STM32MP1_TRUSTED))
  90                 mode = "trusted";
  91         else
  92                 mode = "basic";
  93
  94         printf("Board: stm32mp1 in %s mode", mode);
  95         fdt_compat = fdt_getprop(gd->fdt_blob, 0, "compatible",
  96                                  &fdt_compat_len);
  97         if (fdt_compat && fdt_compat_len)
  98                 printf(" (%s)", fdt_compat);
  99         puts("\n");
 100
 101         ret = uclass_get_device_by_driver(UCLASS_MISC,
 102                                           DM_GET_DRIVER(stm32mp_bsec),
 103                                           &dev);
 104
 105         if (!ret)
 106                 ret = misc_read(dev, STM32_BSEC_SHADOW(BSEC_OTP_BOARD),
 107                                 &otp, sizeof(otp));
 108         if (ret > 0 && otp) {
 109                 printf("Board: MB%04x Var%d Rev.%c-%02d\n",
 110                        otp >> 16,
 111                        (otp >> 12) & 0xF,
 112                        ((otp >> 8) & 0xF) - 1 + 'A',
 113                        otp & 0xF);
 114         }
 115
 116         return 0;
 117 }
 118
 119 static void board_key_check(void)
 120 {
 121 #if defined(CONFIG_FASTBOOT) || defined(CONFIG_CMD_STM32PROG)
 122         ofnode node;
 123         struct gpio_desc gpio;
 124         enum forced_boot_mode boot_mode = BOOT_NORMAL;
 125
 126         node = ofnode_path("/config");
 127         if (!ofnode_valid(node)) {
 128                 debug("%s: no /config node?\n", __func__);
 129                 return;
 130         }
 131 #ifdef CONFIG_FASTBOOT
 132         if (gpio_request_by_name_nodev(node, "st,fastboot-gpios", 0,
 133                                        &gpio, GPIOD_IS_IN)) {
 134                 debug("%s: could not find a /config/st,fastboot-gpios\n",
 135                       __func__);
 136         } else {
 137                 if (dm_gpio_get_value(&gpio)) {
 138                         puts("Fastboot key pressed, ");
 139                         boot_mode = BOOT_FASTBOOT;
 140                 }
 141
 142                 dm_gpio_free(NULL, &gpio);
 143         }
 144 #endif
 145 #ifdef CONFIG_CMD_STM32PROG
 146         if (gpio_request_by_name_nodev(node, "st,stm32prog-gpios", 0,
 147                                        &gpio, GPIOD_IS_IN)) {
 148                 debug("%s: could not find a /config/st,stm32prog-gpios\n",
 149                       __func__);
 150         } else {
 151                 if (dm_gpio_get_value(&gpio)) {
 152                         puts("STM32Programmer key pressed, ");
 153                         boot_mode = BOOT_STM32PROG;
 154                 }
 155                 dm_gpio_free(NULL, &gpio);
 156         }
 157 #endif
 158
 159         if (boot_mode != BOOT_NORMAL) {
 160                 puts("entering download mode...\n");
 161                 clrsetbits_le32(TAMP_BOOT_CONTEXT,
 162                                 TAMP_BOOT_FORCED_MASK,
 163                                 boot_mode);
 164         }
 165 #endif
 166 }
 167
 168 #if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG)
 169
 170 /* STMicroelectronics STUSB1600 Type-C controller */
 171 #define STUSB1600_CC_CONNECTION_STATUS          0x0E
 172
 173 /* STUSB1600_CC_CONNECTION_STATUS bitfields */
 174 #define STUSB1600_CC_ATTACH                     BIT(0)
 175
 176 static int stusb1600_init(struct udevice **dev_stusb1600)
 177 {
 178         ofnode node;
 179         struct udevice *dev, *bus;
 180         int ret;
 181         u32 chip_addr;
 182
 183         *dev_stusb1600 = NULL;
 184
 185         /* if node stusb1600 is present, means DK1 or DK2 board */
 186         node = ofnode_by_compatible(ofnode_null(), "st,stusb1600");
 187         if (!ofnode_valid(node))
 188                 return -ENODEV;
 189
 190         ret = ofnode_read_u32(node, "reg", &chip_addr);
 191         if (ret)
 192                 return -EINVAL;
 193
 194         ret = uclass_get_device_by_ofnode(UCLASS_I2C, ofnode_get_parent(node),
 195                                           &bus);
 196         if (ret) {
 197                 printf("bus for stusb1600 not found\n");
 198                 return -ENODEV;
 199         }
 200
 201         ret = dm_i2c_probe(bus, chip_addr, 0, &dev);
 202         if (!ret)
 203                 *dev_stusb1600 = dev;
 204
 205         return ret;
 206 }
 207
 208 static int stusb1600_cable_connected(struct udevice *dev)
 209 {
 210         u8 status;
 211
 212         if (dm_i2c_read(dev, STUSB1600_CC_CONNECTION_STATUS, &status, 1))
 213                 return 0;
 214
 215         return status & STUSB1600_CC_ATTACH;
 216 }
 217
 218 #include <usb/dwc2_udc.h>
 219 int g_dnl_board_usb_cable_connected(void)
 220 {
 221         struct udevice *stusb1600;
 222         struct udevice *dwc2_udc_otg;
 223         int ret;
 224
 225         if (!stusb1600_init(&stusb1600))
 226                 return stusb1600_cable_connected(stusb1600);
 227
 228         ret = uclass_get_device_by_driver(UCLASS_USB_GADGET_GENERIC,
 229                                           DM_GET_DRIVER(dwc2_udc_otg),
 230                                           &dwc2_udc_otg);
 231         if (!ret)
 232                 debug("dwc2_udc_otg init failed\n");
 233
 234         return dwc2_udc_B_session_valid(dwc2_udc_otg);
 235 }
 236 #endif /* CONFIG_USB_GADGET */
 237
 238 #ifdef CONFIG_LED
 239 static int get_led(struct udevice **dev, char *led_string)
 240 {
 241         char *led_name;
 242         int ret;
 243
 244         led_name = fdtdec_get_config_string(gd->fdt_blob, led_string);
 245         if (!led_name) {
 246                 pr_debug("%s: could not find %s config string\n",
 247                          __func__, led_string);
 248                 return -ENOENT;
 249         }
 250         ret = led_get_by_label(led_name, dev);
 251         if (ret) {
 252                 debug("%s: get=%d\n", __func__, ret);
 253                 return ret;
 254         }
 255
 256         return 0;
 257 }
 258
 259 static int setup_led(enum led_state_t cmd)
 260 {
 261         struct udevice *dev;
 262         int ret;
 263
 264         ret = get_led(&dev, "u-boot,boot-led");
 265         if (ret)
 266                 return ret;
 267
 268         ret = led_set_state(dev, cmd);
 269         return ret;
 270 }
 271 #endif
 272
 273 static void __maybe_unused led_error_blink(u32 nb_blink)
 274 {
 275 #ifdef CONFIG_LED
 276         int ret;
 277         struct udevice *led;
 278         u32 i;
 279 #endif
 280
 281         if (!nb_blink)
 282                 return;
 283
 284 #ifdef CONFIG_LED
 285         ret = get_led(&led, "u-boot,error-led");
 286         if (!ret) {
 287                 /* make u-boot,error-led blinking */
 288                 /* if U32_MAX and 125ms interval, for 17.02 years */
 289                 for (i = 0; i < 2 * nb_blink; i++) {
 290                         led_set_state(led, LEDST_TOGGLE);
 291                         mdelay(125);
 292                         WATCHDOG_RESET();
 293                 }
 294         }
 295 #endif
 296
 297         /* infinite: the boot process must be stopped */
 298         if (nb_blink == U32_MAX)
 299                 hang();
 300 }
 301
 302 #ifdef CONFIG_ADC
 303 static int board_check_usb_power(void)
 304 {
 305         struct ofnode_phandle_args adc_args;
 306         struct udevice *adc;
 307         ofnode node;
 308         unsigned int raw;
 309         int max_uV = 0;
 310         int min_uV = USB_START_HIGH_THRESHOLD_UV;
 311         int ret, uV, adc_count;
 312         u32 nb_blink;
 313         u8 i;
 314         node = ofnode_path("/config");
 315         if (!ofnode_valid(node)) {
 316                 debug("%s: no /config node?\n", __func__);
 317                 return -ENOENT;
 318         }
 319
 320         /*
 321          * Retrieve the ADC channels devices and get measurement
 322          * for each of them
 323          */
 324         adc_count = ofnode_count_phandle_with_args(node, "st,adc_usb_pd",
 325                                                    "#io-channel-cells");
 326         if (adc_count < 0) {
 327                 if (adc_count == -ENOENT)
 328                         return 0;
 329
 330                 pr_err("%s: can't find adc channel (%d)\n", __func__,
 331                        adc_count);
 332
 333                 return adc_count;
 334         }
 335
 336         for (i = 0; i < adc_count; i++) {
 337                 if (ofnode_parse_phandle_with_args(node, "st,adc_usb_pd",
 338                                                    "#io-channel-cells", 0, i,
 339                                                    &adc_args)) {
 340                         pr_debug("%s: can't find /config/st,adc_usb_pd\n",
 341                                  __func__);
 342                         return 0;
 343                 }
 344
 345                 ret = uclass_get_device_by_ofnode(UCLASS_ADC, adc_args.node,
 346                                                   &adc);
 347
 348                 if (ret) {
 349                         pr_err("%s: Can't get adc device(%d)\n", __func__,
 350                                ret);
 351                         return ret;
 352                 }
 353
 354                 ret = adc_channel_single_shot(adc->name, adc_args.args[0],
 355                                               &raw);
 356                 if (ret) {
 357                         pr_err("%s: single shot failed for %s[%d]!\n",
 358                                __func__, adc->name, adc_args.args[0]);
 359                         return ret;
 360                 }
 361                 /* Convert to uV */
 362                 if (!adc_raw_to_uV(adc, raw, &uV)) {
 363                         if (uV > max_uV)
 364                                 max_uV = uV;
 365                         if (uV < min_uV)
 366                                 min_uV = uV;
 367                         pr_debug("%s: %s[%02d] = %u, %d uV\n", __func__,
 368                                  adc->name, adc_args.args[0], raw, uV);
 369                 } else {
 370                         pr_err("%s: Can't get uV value for %s[%d]\n",
 371                                __func__, adc->name, adc_args.args[0]);
 372                 }
 373         }
 374
 375         /*
 376          * If highest value is inside 1.23 Volts and 2.10 Volts, that means
 377          * board is plugged on an USB-C 3A power supply and boot process can
 378          * continue.
 379          */
 380         if (max_uV > USB_START_LOW_THRESHOLD_UV &&
 381             max_uV <= USB_START_HIGH_THRESHOLD_UV &&
 382             min_uV <= USB_LOW_THRESHOLD_UV)
 383                 return 0;
 384
 385         pr_err("****************************************************\n");
 386
 387         /*
 388          * If highest and lowest value are either both below
 389          * USB_LOW_THRESHOLD_UV or both above USB_LOW_THRESHOLD_UV, that
 390          * means USB TYPE-C is in unattached mode, this is an issue, make
 391          * u-boot,error-led blinking and stop boot process.
 392          */
 393         if ((max_uV > USB_LOW_THRESHOLD_UV &&
 394              min_uV > USB_LOW_THRESHOLD_UV) ||
 395              (max_uV <= USB_LOW_THRESHOLD_UV &&
 396              min_uV <= USB_LOW_THRESHOLD_UV)) {
 397                 pr_err("* ERROR USB TYPE-C connection in unattached mode   *\n");
 398                 pr_err("* Check that USB TYPE-C cable is correctly plugged *\n");
 399                 /* with 125ms interval, led will blink for 17.02 years ....*/
 400                 nb_blink = U32_MAX;
 401         }
 402
 403         if (max_uV > USB_LOW_THRESHOLD_UV &&
 404             max_uV <= USB_WARNING_LOW_THRESHOLD_UV &&
 405             min_uV <= USB_LOW_THRESHOLD_UV) {
 406                 pr_err("*        WARNING 500mA power supply detected       *\n");
 407                 nb_blink = 2;
 408         }
 409
 410         if (max_uV > USB_WARNING_LOW_THRESHOLD_UV &&
 411             max_uV <= USB_START_LOW_THRESHOLD_UV &&
 412             min_uV <= USB_LOW_THRESHOLD_UV) {
 413                 pr_err("*       WARNING 1.5mA power supply detected        *\n");
 414                 nb_blink = 3;
 415         }
 416
 417         /*
 418          * If highest value is above 2.15 Volts that means that the USB TypeC
 419          * supplies more than 3 Amp, this is not compliant with TypeC specification
 420          */
 421         if (max_uV > USB_START_HIGH_THRESHOLD_UV) {
 422                 pr_err("*      USB TYPE-C charger not compliant with       *\n");
 423                 pr_err("*                   specification                  *\n");
 424                 pr_err("****************************************************\n\n");
 425                 /* with 125ms interval, led will blink for 17.02 years ....*/
 426                 nb_blink = U32_MAX;
 427         } else {
 428                 pr_err("*     Current too low, use a 3A power supply!      *\n");
 429                 pr_err("****************************************************\n\n");
 430         }
 431
 432         led_error_blink(nb_blink);
 433
 434         return 0;
 435 }
 436 #endif /* CONFIG_ADC */
 437
 438 static void sysconf_init(void)
 439 {
 440 #ifndef CONFIG_STM32MP1_TRUSTED
 441         u8 *syscfg;
 442 #ifdef CONFIG_DM_REGULATOR
 443         struct udevice *pwr_dev;
 444         struct udevice *pwr_reg;
 445         struct udevice *dev;
 446         int ret;
 447         u32 otp = 0;
 448 #endif
 449         u32 bootr;
 450
 451         syscfg = (u8 *)syscon_get_first_range(STM32MP_SYSCON_SYSCFG);
 452
 453         /* interconnect update : select master using the port 1 */
 454         /* LTDC = AXI_M9 */
 455         /* GPU  = AXI_M8 */
 456         /* today information is hardcoded in U-Boot */
 457         writel(BIT(9), syscfg + SYSCFG_ICNR);
 458
 459         /* disable Pull-Down for boot pin connected to VDD */
 460         bootr = readl(syscfg + SYSCFG_BOOTR);
 461         bootr &= ~(SYSCFG_BOOTR_BOOT_MASK << SYSCFG_BOOTR_BOOTPD_SHIFT);
 462         bootr |= (bootr & SYSCFG_BOOTR_BOOT_MASK) << SYSCFG_BOOTR_BOOTPD_SHIFT;
 463         writel(bootr, syscfg + SYSCFG_BOOTR);
 464
 465 #ifdef CONFIG_DM_REGULATOR
 466         /* High Speed Low Voltage Pad mode Enable for SPI, SDMMC, ETH, QSPI
 467          * and TRACE. Needed above ~50MHz and conditioned by AFMUX selection.
 468          * The customer will have to disable this for low frequencies
 469          * or if AFMUX is selected but the function not used, typically for
 470          * TRACE. Otherwise, impact on power consumption.
 471          *
 472          * WARNING:
 473          *   enabling High Speed mode while VDD>2.7V
 474          *   with the OTP product_below_2v5 (OTP 18, BIT 13)
 475          *   erroneously set to 1 can damage the IC!
 476          *   => U-Boot set the register only if VDD < 2.7V (in DT)
 477          *      but this value need to be consistent with board design
 478          */
 479         ret = uclass_get_device_by_driver(UCLASS_PMIC,
 480                                           DM_GET_DRIVER(stm32mp_pwr_pmic),
 481                                           &pwr_dev);
 482         if (!ret) {
 483                 ret = uclass_get_device_by_driver(UCLASS_MISC,
 484                                                   DM_GET_DRIVER(stm32mp_bsec),
 485                                                   &dev);
 486                 if (ret) {
 487                         pr_err("Can't find stm32mp_bsec driver\n");
 488                         return;
 489                 }
 490
 491                 ret = misc_read(dev, STM32_BSEC_SHADOW(18), &otp, 4);
 492                 if (ret > 0)
 493                         otp = otp & BIT(13);
 494
 495                 /* get VDD = vdd-supply */
 496                 ret = device_get_supply_regulator(pwr_dev, "vdd-supply",
 497                                                   &pwr_reg);
 498
 499                 /* check if VDD is Low Voltage */
 500                 if (!ret) {
 501                         if (regulator_get_value(pwr_reg) < 2700000) {
 502                                 writel(SYSCFG_IOCTRLSETR_HSLVEN_TRACE |
 503                                        SYSCFG_IOCTRLSETR_HSLVEN_QUADSPI |
 504                                        SYSCFG_IOCTRLSETR_HSLVEN_ETH |
 505                                        SYSCFG_IOCTRLSETR_HSLVEN_SDMMC |
 506                                        SYSCFG_IOCTRLSETR_HSLVEN_SPI,
 507                                        syscfg + SYSCFG_IOCTRLSETR);
 508
 509                                 if (!otp)
 510                                         pr_err("product_below_2v5=0: HSLVEN protected by HW\n");
 511                         } else {
 512                                 if (otp)
 513                                         pr_err("product_below_2v5=1: HSLVEN update is destructive, no update as VDD>2.7V\n");
 514                         }
 515                 } else {
 516                         debug("VDD unknown");
 517                 }
 518         }
 519 #endif
 520
 521         /* activate automatic I/O compensation
 522          * warning: need to ensure CSI enabled and ready in clock driver
 523          */
 524         writel(SYSCFG_CMPENSETR_MPU_EN, syscfg + SYSCFG_CMPENSETR);
 525
 526         while (!(readl(syscfg + SYSCFG_CMPCR) & SYSCFG_CMPCR_READY))
 527                 ;
 528         clrbits_le32(syscfg + SYSCFG_CMPCR, SYSCFG_CMPCR_SW_CTRL);
 529 #endif
 530 }
 531
 532 #ifdef CONFIG_DM_REGULATOR
 533 /* Fix to make I2C1 usable on DK2 for touchscreen usage in kernel */
 534 static int dk2_i2c1_fix(void)
 535 {
 536         ofnode node;
 537         struct gpio_desc hdmi, audio;
 538         int ret = 0;
 539
 540         node = ofnode_path("/soc/i2c@40012000/hdmi-transmitter@39");
 541         if (!ofnode_valid(node)) {
 542                 pr_debug("%s: no hdmi-transmitter@39 ?\n", __func__);
 543                 return -ENOENT;
 544         }
 545
 546         if (gpio_request_by_name_nodev(node, "reset-gpios", 0,
 547                                        &hdmi, GPIOD_IS_OUT)) {
 548                 pr_debug("%s: could not find reset-gpios\n",
 549                          __func__);
 550                 return -ENOENT;
 551         }
 552
 553         node = ofnode_path("/soc/i2c@40012000/cs42l51@4a");
 554         if (!ofnode_valid(node)) {
 555                 pr_debug("%s: no cs42l51@4a ?\n", __func__);
 556                 return -ENOENT;
 557         }
 558
 559         if (gpio_request_by_name_nodev(node, "reset-gpios", 0,
 560                                        &audio, GPIOD_IS_OUT)) {
 561                 pr_debug("%s: could not find reset-gpios\n",
 562                          __func__);
 563                 return -ENOENT;
 564         }
 565
 566         /* before power up, insure that HDMI and AUDIO IC is under reset */
 567         ret = dm_gpio_set_value(&hdmi, 1);
 568         if (ret) {
 569                 pr_err("%s: can't set_value for hdmi_nrst gpio", __func__);
 570                 goto error;
 571         }
 572         ret = dm_gpio_set_value(&audio, 1);
 573         if (ret) {
 574                 pr_err("%s: can't set_value for audio_nrst gpio", __func__);
 575                 goto error;
 576         }
 577
 578         /* power-up audio IC */
 579         regulator_autoset_by_name("v1v8_audio", NULL);
 580
 581         /* power-up HDMI IC */
 582         regulator_autoset_by_name("v1v2_hdmi", NULL);
 583         regulator_autoset_by_name("v3v3_hdmi", NULL);
 584
 585 error:
 586         return ret;
 587 }
 588
 589 static bool board_is_dk2(void)
 590 {
 591         if (CONFIG_IS_ENABLED(TARGET_STM32MP157C_DK2) &&
 592             of_machine_is_compatible("st,stm32mp157c-dk2"))
 593                 return true;
 594
 595         return false;
 596 }
 597 #endif
 598
 599 /* board dependent setup after realloc */
 600 int board_init(void)
 601 {
 602         struct udevice *dev;
 603
 604         /* address of boot parameters */
 605         gd->bd->bi_boot_params = STM32_DDR_BASE + 0x100;
 606
 607         /* probe all PINCTRL for hog */
 608         for (uclass_first_device(UCLASS_PINCTRL, &dev);
 609              dev;
 610              uclass_next_device(&dev)) {
 611                 pr_debug("probe pincontrol = %s\n", dev->name);
 612         }
 613
 614         board_key_check();
 615
 616 #ifdef CONFIG_DM_REGULATOR
 617         if (board_is_dk2())
 618                 dk2_i2c1_fix();
 619
 620         regulators_enable_boot_on(_DEBUG);
 621 #endif
 622
 623         sysconf_init();
 624
 625         if (CONFIG_IS_ENABLED(CONFIG_LED))
 626                 led_default_state();
 627
 628         return 0;
 629 }
 630
 631 int board_late_init(void)
 632 {
 633         char *boot_device;
 634 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 635         const void *fdt_compat;
 636         int fdt_compat_len;
 637         int ret;
 638         u32 otp;
 639         struct udevice *dev;
 640         char buf[10];
 641
 642         fdt_compat = fdt_getprop(gd->fdt_blob, 0, "compatible",
 643                                  &fdt_compat_len);
 644         if (fdt_compat && fdt_compat_len) {
 645                 if (strncmp(fdt_compat, "st,", 3) != 0)
 646                         env_set("board_name", fdt_compat);
 647                 else
 648                         env_set("board_name", fdt_compat + 3);
 649         }
 650         ret = uclass_get_device_by_driver(UCLASS_MISC,
 651                                           DM_GET_DRIVER(stm32mp_bsec),
 652                                           &dev);
 653
 654         if (!ret)
 655                 ret = misc_read(dev, STM32_BSEC_SHADOW(BSEC_OTP_BOARD),
 656                                 &otp, sizeof(otp));
 657         if (!ret && otp) {
 658                 snprintf(buf, sizeof(buf), "0x%04x", otp >> 16);
 659                 env_set("board_id", buf);
 660
 661                 snprintf(buf, sizeof(buf), "0x%04x",
 662                          ((otp >> 8) & 0xF) - 1 + 0xA);
 663                 env_set("board_rev", buf);
 664         }
 665 #endif
 666
 667 #ifdef CONFIG_ADC
 668         /* for DK1/DK2 boards */
 669         board_check_usb_power();
 670 #endif /* CONFIG_ADC */
 671
 672         /* Check the boot-source to disable bootdelay */
 673         boot_device = env_get("boot_device");
 674         if (!strcmp(boot_device, "serial") || !strcmp(boot_device, "usb"))
 675                 env_set("bootdelay", "0");
 676
 677         return 0;
 678 }
 679
 680 void board_quiesce_devices(void)
 681 {
 682 #ifdef CONFIG_LED
 683         setup_led(LEDST_OFF);
 684 #endif
 685 }
 686
 687 /* eth init function : weak called in eqos driver */
 688 int board_interface_eth_init(struct udevice *dev,
 689                              phy_interface_t interface_type)
 690 {
 691         u8 *syscfg;
 692         u32 value;
 693         bool eth_clk_sel_reg = false;
 694         bool eth_ref_clk_sel_reg = false;
 695
 696         /* Gigabit Ethernet 125MHz clock selection. */
 697         eth_clk_sel_reg = dev_read_bool(dev, "st,eth_clk_sel");
 698
 699         /* Ethernet 50Mhz RMII clock selection */
 700         eth_ref_clk_sel_reg =
 701                 dev_read_bool(dev, "st,eth_ref_clk_sel");
 702
 703         syscfg = (u8 *)syscon_get_first_range(STM32MP_SYSCON_SYSCFG);
 704
 705         if (!syscfg)
 706                 return -ENODEV;
 707
 708         switch (interface_type) {
 709         case PHY_INTERFACE_MODE_MII:
 710                 value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII |
 711                         SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
 712                 debug("%s: PHY_INTERFACE_MODE_MII\n", __func__);
 713                 break;
 714         case PHY_INTERFACE_MODE_GMII:
 715                 if (eth_clk_sel_reg)
 716                         value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII |
 717                                 SYSCFG_PMCSETR_ETH_CLK_SEL;
 718                 else
 719                         value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII;
 720                 debug("%s: PHY_INTERFACE_MODE_GMII\n", __func__);
 721                 break;
 722         case PHY_INTERFACE_MODE_RMII:
 723                 if (eth_ref_clk_sel_reg)
 724                         value = SYSCFG_PMCSETR_ETH_SEL_RMII |
 725                                 SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
 726                 else
 727                         value = SYSCFG_PMCSETR_ETH_SEL_RMII;
 728                 debug("%s: PHY_INTERFACE_MODE_RMII\n", __func__);
 729                 break;
 730         case PHY_INTERFACE_MODE_RGMII:
 731         case PHY_INTERFACE_MODE_RGMII_ID:
 732         case PHY_INTERFACE_MODE_RGMII_RXID:
 733         case PHY_INTERFACE_MODE_RGMII_TXID:
 734                 if (eth_clk_sel_reg)
 735                         value = SYSCFG_PMCSETR_ETH_SEL_RGMII |
 736                                 SYSCFG_PMCSETR_ETH_CLK_SEL;
 737                 else
 738                         value = SYSCFG_PMCSETR_ETH_SEL_RGMII;
 739                 debug("%s: PHY_INTERFACE_MODE_RGMII\n", __func__);
 740                 break;
 741         default:
 742                 debug("%s: Do not manage %d interface\n",
 743                       __func__, interface_type);
 744                 /* Do not manage others interfaces */
 745                 return -EINVAL;
 746         }
 747
 748         /* clear and set ETH configuration bits */
 749         writel(SYSCFG_PMCSETR_ETH_SEL_MASK | SYSCFG_PMCSETR_ETH_SELMII |
 750                SYSCFG_PMCSETR_ETH_REF_CLK_SEL | SYSCFG_PMCSETR_ETH_CLK_SEL,
 751                syscfg + SYSCFG_PMCCLRR);
 752         writel(value, syscfg + SYSCFG_PMCSETR);
 753
 754         return 0;
 755 }
 756
 757 enum env_location env_get_location(enum env_operation op, int prio)
 758 {
 759         u32 bootmode = get_bootmode();
 760
 761         if (prio)
 762                 return ENVL_UNKNOWN;
 763
 764         switch (bootmode & TAMP_BOOT_DEVICE_MASK) {
 765 #ifdef CONFIG_ENV_IS_IN_EXT4
 766         case BOOT_FLASH_SD:
 767         case BOOT_FLASH_EMMC:
 768                 return ENVL_EXT4;
 769 #endif
 770 #ifdef CONFIG_ENV_IS_IN_UBI
 771         case BOOT_FLASH_NAND:
 772                 return ENVL_UBI;
 773 #endif
 774 #ifdef CONFIG_ENV_IS_IN_SPI_FLASH
 775         case BOOT_FLASH_NOR:
 776                 return ENVL_SPI_FLASH;
 777 #endif
 778         default:
 779                 return ENVL_NOWHERE;
 780         }
 781 }
 782
 783 #if defined(CONFIG_ENV_IS_IN_EXT4)
 784 const char *env_ext4_get_intf(void)
 785 {
 786         u32 bootmode = get_bootmode();
 787
 788         switch (bootmode & TAMP_BOOT_DEVICE_MASK) {
 789         case BOOT_FLASH_SD:
 790         case BOOT_FLASH_EMMC:
 791                 return "mmc";
 792         default:
 793                 return "";
 794         }
 795 }
 796
 797 const char *env_ext4_get_dev_part(void)
 798 {
 799         static char *const dev_part[] = {"0:auto", "1:auto", "2:auto"};
 800         u32 bootmode = get_bootmode();
 801
 802         return dev_part[(bootmode & TAMP_BOOT_INSTANCE_MASK) - 1];
 803 }
 804 #endif
 805
 806 #ifdef CONFIG_SYS_MTDPARTS_RUNTIME
 807
 808 #define MTDPARTS_LEN            256
 809 #define MTDIDS_LEN              128
 810
 811 /**
 812  * The mtdparts_nand0 and mtdparts_nor0 variable tends to be long.
 813  * If we need to access it before the env is relocated, then we need
 814  * to use our own stack buffer. gd->env_buf will be too small.
 815  *
 816  * @param buf temporary buffer pointer MTDPARTS_LEN long
 817  * @return mtdparts variable string, NULL if not found
 818  */
 819 static const char *env_get_mtdparts(const char *str, char *buf)
 820 {
 821         if (gd->flags & GD_FLG_ENV_READY)
 822                 return env_get(str);
 823         if (env_get_f(str, buf, MTDPARTS_LEN) != -1)
 824                 return buf;
 825
 826         return NULL;
 827 }
 828
 829 /**
 830  * update the variables "mtdids" and "mtdparts" with content of mtdparts_<dev>
 831  */
 832 static void board_get_mtdparts(const char *dev,
 833                                char *mtdids,
 834                                char *mtdparts)
 835 {
 836         char env_name[32] = "mtdparts_";
 837         char tmp_mtdparts[MTDPARTS_LEN];
 838         const char *tmp;
 839
 840         /* name of env variable to read = mtdparts_<dev> */
 841         strcat(env_name, dev);
 842         tmp = env_get_mtdparts(env_name, tmp_mtdparts);
 843         if (tmp) {
 844                 /* mtdids: "<dev>=<dev>, ...." */
 845                 if (mtdids[0] != '\0')
 846                         strcat(mtdids, ",");
 847                 strcat(mtdids, dev);
 848                 strcat(mtdids, "=");
 849                 strcat(mtdids, dev);
 850
 851                 /* mtdparts: "mtdparts=<dev>:<mtdparts_<dev>>;..." */
 852                 if (mtdparts[0] != '\0')
 853                         strncat(mtdparts, ";", MTDPARTS_LEN);
 854                 else
 855                         strcat(mtdparts, "mtdparts=");
 856                 strncat(mtdparts, dev, MTDPARTS_LEN);
 857                 strncat(mtdparts, ":", MTDPARTS_LEN);
 858                 strncat(mtdparts, tmp, MTDPARTS_LEN);
 859         }
 860 }
 861
 862 void board_mtdparts_default(const char **mtdids, const char **mtdparts)
 863 {
 864         struct udevice *dev;
 865         static char parts[2 * MTDPARTS_LEN + 1];
 866         static char ids[MTDIDS_LEN + 1];
 867         static bool mtd_initialized;
 868
 869         if (mtd_initialized) {
 870                 *mtdids = ids;
 871                 *mtdparts = parts;
 872                 return;
 873         }
 874
 875         memset(parts, 0, sizeof(parts));
 876         memset(ids, 0, sizeof(ids));
 877
 878         if (!uclass_get_device(UCLASS_MTD, 0, &dev))
 879                 board_get_mtdparts("nand0", ids, parts);
 880
 881         if (!uclass_get_device(UCLASS_SPI_FLASH, 0, &dev))
 882                 board_get_mtdparts("nor0", ids, parts);
 883
 884         mtd_initialized = true;
 885         *mtdids = ids;
 886         *mtdparts = parts;
 887         debug("%s:mtdids=%s & mtdparts=%s\n", __func__, ids, parts);
 888 }
 889 #endif
 890
 891 #if defined(CONFIG_OF_BOARD_SETUP)
 892 int ft_board_setup(void *blob, bd_t *bd)
 893 {
 894 #ifdef CONFIG_FDT_FIXUP_PARTITIONS
 895         struct node_info nodes[] = {
 896                 { "st,stm32f469-qspi",          MTD_DEV_TYPE_NOR,  },
 897                 { "st,stm32mp15-fmc2",          MTD_DEV_TYPE_NAND, },
 898         };
 899         fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
 900 #endif
 901
 902         return 0;
 903 }
 904 #endif
 905
 906 static void board_copro_image_process(ulong fw_image, size_t fw_size)
 907 {
 908         int ret, id = 0; /* Copro id fixed to 0 as only one coproc on mp1 */
 909
 910         if (!rproc_is_initialized())
 911                 if (rproc_init()) {
 912                         printf("Remote Processor %d initialization failed\n",
 913                                id);
 914                         return;
 915                 }
 916
 917         ret = rproc_load(id, fw_image, fw_size);
 918         printf("Load Remote Processor %d with data@addr=0x%08lx %u bytes:%s\n",
 919                id, fw_image, fw_size, ret ? " Failed!" : " Success!");
 920
 921         if (!ret) {
 922                 rproc_start(id);
 923                 env_set("copro_state", "booted");
 924         }
 925 }
 926
 927 U_BOOT_FIT_LOADABLE_HANDLER(IH_TYPE_COPRO, board_copro_image_process);