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
 237 #define STM32MP1_G_DNL_DFU_PRODUCT_NUM 0xdf11
 238 #define STM32MP1_G_DNL_FASTBOOT_PRODUCT_NUM 0x0afb
 239
 240 int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name)
 241 {
 242         if (!strcmp(name, "usb_dnl_dfu"))
 243                 put_unaligned(STM32MP1_G_DNL_DFU_PRODUCT_NUM, &dev->idProduct);
 244         else if (!strcmp(name, "usb_dnl_fastboot"))
 245                 put_unaligned(STM32MP1_G_DNL_FASTBOOT_PRODUCT_NUM,
 246                               &dev->idProduct);
 247         else
 248                 put_unaligned(CONFIG_USB_GADGET_PRODUCT_NUM, &dev->idProduct);
 249
 250         return 0;
 251 }
 252
 253 #endif /* CONFIG_USB_GADGET */
 254
 255 #ifdef CONFIG_LED
 256 static int get_led(struct udevice **dev, char *led_string)
 257 {
 258         char *led_name;
 259         int ret;
 260
 261         led_name = fdtdec_get_config_string(gd->fdt_blob, led_string);
 262         if (!led_name) {
 263                 pr_debug("%s: could not find %s config string\n",
 264                          __func__, led_string);
 265                 return -ENOENT;
 266         }
 267         ret = led_get_by_label(led_name, dev);
 268         if (ret) {
 269                 debug("%s: get=%d\n", __func__, ret);
 270                 return ret;
 271         }
 272
 273         return 0;
 274 }
 275
 276 static int setup_led(enum led_state_t cmd)
 277 {
 278         struct udevice *dev;
 279         int ret;
 280
 281         ret = get_led(&dev, "u-boot,boot-led");
 282         if (ret)
 283                 return ret;
 284
 285         ret = led_set_state(dev, cmd);
 286         return ret;
 287 }
 288 #endif
 289
 290 static void __maybe_unused led_error_blink(u32 nb_blink)
 291 {
 292 #ifdef CONFIG_LED
 293         int ret;
 294         struct udevice *led;
 295         u32 i;
 296 #endif
 297
 298         if (!nb_blink)
 299                 return;
 300
 301 #ifdef CONFIG_LED
 302         ret = get_led(&led, "u-boot,error-led");
 303         if (!ret) {
 304                 /* make u-boot,error-led blinking */
 305                 /* if U32_MAX and 125ms interval, for 17.02 years */
 306                 for (i = 0; i < 2 * nb_blink; i++) {
 307                         led_set_state(led, LEDST_TOGGLE);
 308                         mdelay(125);
 309                         WATCHDOG_RESET();
 310                 }
 311         }
 312 #endif
 313
 314         /* infinite: the boot process must be stopped */
 315         if (nb_blink == U32_MAX)
 316                 hang();
 317 }
 318
 319 #ifdef CONFIG_ADC
 320 static int board_check_usb_power(void)
 321 {
 322         struct ofnode_phandle_args adc_args;
 323         struct udevice *adc;
 324         ofnode node;
 325         unsigned int raw;
 326         int max_uV = 0;
 327         int min_uV = USB_START_HIGH_THRESHOLD_UV;
 328         int ret, uV, adc_count;
 329         u32 nb_blink;
 330         u8 i;
 331         node = ofnode_path("/config");
 332         if (!ofnode_valid(node)) {
 333                 debug("%s: no /config node?\n", __func__);
 334                 return -ENOENT;
 335         }
 336
 337         /*
 338          * Retrieve the ADC channels devices and get measurement
 339          * for each of them
 340          */
 341         adc_count = ofnode_count_phandle_with_args(node, "st,adc_usb_pd",
 342                                                    "#io-channel-cells");
 343         if (adc_count < 0) {
 344                 if (adc_count == -ENOENT)
 345                         return 0;
 346
 347                 pr_err("%s: can't find adc channel (%d)\n", __func__,
 348                        adc_count);
 349
 350                 return adc_count;
 351         }
 352
 353         for (i = 0; i < adc_count; i++) {
 354                 if (ofnode_parse_phandle_with_args(node, "st,adc_usb_pd",
 355                                                    "#io-channel-cells", 0, i,
 356                                                    &adc_args)) {
 357                         pr_debug("%s: can't find /config/st,adc_usb_pd\n",
 358                                  __func__);
 359                         return 0;
 360                 }
 361
 362                 ret = uclass_get_device_by_ofnode(UCLASS_ADC, adc_args.node,
 363                                                   &adc);
 364
 365                 if (ret) {
 366                         pr_err("%s: Can't get adc device(%d)\n", __func__,
 367                                ret);
 368                         return ret;
 369                 }
 370
 371                 ret = adc_channel_single_shot(adc->name, adc_args.args[0],
 372                                               &raw);
 373                 if (ret) {
 374                         pr_err("%s: single shot failed for %s[%d]!\n",
 375                                __func__, adc->name, adc_args.args[0]);
 376                         return ret;
 377                 }
 378                 /* Convert to uV */
 379                 if (!adc_raw_to_uV(adc, raw, &uV)) {
 380                         if (uV > max_uV)
 381                                 max_uV = uV;
 382                         if (uV < min_uV)
 383                                 min_uV = uV;
 384                         pr_debug("%s: %s[%02d] = %u, %d uV\n", __func__,
 385                                  adc->name, adc_args.args[0], raw, uV);
 386                 } else {
 387                         pr_err("%s: Can't get uV value for %s[%d]\n",
 388                                __func__, adc->name, adc_args.args[0]);
 389                 }
 390         }
 391
 392         /*
 393          * If highest value is inside 1.23 Volts and 2.10 Volts, that means
 394          * board is plugged on an USB-C 3A power supply and boot process can
 395          * continue.
 396          */
 397         if (max_uV > USB_START_LOW_THRESHOLD_UV &&
 398             max_uV <= USB_START_HIGH_THRESHOLD_UV &&
 399             min_uV <= USB_LOW_THRESHOLD_UV)
 400                 return 0;
 401
 402         pr_err("****************************************************\n");
 403
 404         /*
 405          * If highest and lowest value are either both below
 406          * USB_LOW_THRESHOLD_UV or both above USB_LOW_THRESHOLD_UV, that
 407          * means USB TYPE-C is in unattached mode, this is an issue, make
 408          * u-boot,error-led blinking and stop boot process.
 409          */
 410         if ((max_uV > USB_LOW_THRESHOLD_UV &&
 411              min_uV > USB_LOW_THRESHOLD_UV) ||
 412              (max_uV <= USB_LOW_THRESHOLD_UV &&
 413              min_uV <= USB_LOW_THRESHOLD_UV)) {
 414                 pr_err("* ERROR USB TYPE-C connection in unattached mode   *\n");
 415                 pr_err("* Check that USB TYPE-C cable is correctly plugged *\n");
 416                 /* with 125ms interval, led will blink for 17.02 years ....*/
 417                 nb_blink = U32_MAX;
 418         }
 419
 420         if (max_uV > USB_LOW_THRESHOLD_UV &&
 421             max_uV <= USB_WARNING_LOW_THRESHOLD_UV &&
 422             min_uV <= USB_LOW_THRESHOLD_UV) {
 423                 pr_err("*        WARNING 500mA power supply detected       *\n");
 424                 nb_blink = 2;
 425         }
 426
 427         if (max_uV > USB_WARNING_LOW_THRESHOLD_UV &&
 428             max_uV <= USB_START_LOW_THRESHOLD_UV &&
 429             min_uV <= USB_LOW_THRESHOLD_UV) {
 430                 pr_err("*       WARNING 1.5mA power supply detected        *\n");
 431                 nb_blink = 3;
 432         }
 433
 434         /*
 435          * If highest value is above 2.15 Volts that means that the USB TypeC
 436          * supplies more than 3 Amp, this is not compliant with TypeC specification
 437          */
 438         if (max_uV > USB_START_HIGH_THRESHOLD_UV) {
 439                 pr_err("*      USB TYPE-C charger not compliant with       *\n");
 440                 pr_err("*                   specification                  *\n");
 441                 pr_err("****************************************************\n\n");
 442                 /* with 125ms interval, led will blink for 17.02 years ....*/
 443                 nb_blink = U32_MAX;
 444         } else {
 445                 pr_err("*     Current too low, use a 3A power supply!      *\n");
 446                 pr_err("****************************************************\n\n");
 447         }
 448
 449         led_error_blink(nb_blink);
 450
 451         return 0;
 452 }
 453 #endif /* CONFIG_ADC */
 454
 455 static void sysconf_init(void)
 456 {
 457 #ifndef CONFIG_STM32MP1_TRUSTED
 458         u8 *syscfg;
 459 #ifdef CONFIG_DM_REGULATOR
 460         struct udevice *pwr_dev;
 461         struct udevice *pwr_reg;
 462         struct udevice *dev;
 463         int ret;
 464         u32 otp = 0;
 465 #endif
 466         u32 bootr;
 467
 468         syscfg = (u8 *)syscon_get_first_range(STM32MP_SYSCON_SYSCFG);
 469
 470         /* interconnect update : select master using the port 1 */
 471         /* LTDC = AXI_M9 */
 472         /* GPU  = AXI_M8 */
 473         /* today information is hardcoded in U-Boot */
 474         writel(BIT(9), syscfg + SYSCFG_ICNR);
 475
 476         /* disable Pull-Down for boot pin connected to VDD */
 477         bootr = readl(syscfg + SYSCFG_BOOTR);
 478         bootr &= ~(SYSCFG_BOOTR_BOOT_MASK << SYSCFG_BOOTR_BOOTPD_SHIFT);
 479         bootr |= (bootr & SYSCFG_BOOTR_BOOT_MASK) << SYSCFG_BOOTR_BOOTPD_SHIFT;
 480         writel(bootr, syscfg + SYSCFG_BOOTR);
 481
 482 #ifdef CONFIG_DM_REGULATOR
 483         /* High Speed Low Voltage Pad mode Enable for SPI, SDMMC, ETH, QSPI
 484          * and TRACE. Needed above ~50MHz and conditioned by AFMUX selection.
 485          * The customer will have to disable this for low frequencies
 486          * or if AFMUX is selected but the function not used, typically for
 487          * TRACE. Otherwise, impact on power consumption.
 488          *
 489          * WARNING:
 490          *   enabling High Speed mode while VDD>2.7V
 491          *   with the OTP product_below_2v5 (OTP 18, BIT 13)
 492          *   erroneously set to 1 can damage the IC!
 493          *   => U-Boot set the register only if VDD < 2.7V (in DT)
 494          *      but this value need to be consistent with board design
 495          */
 496         ret = uclass_get_device_by_driver(UCLASS_PMIC,
 497                                           DM_GET_DRIVER(stm32mp_pwr_pmic),
 498                                           &pwr_dev);
 499         if (!ret) {
 500                 ret = uclass_get_device_by_driver(UCLASS_MISC,
 501                                                   DM_GET_DRIVER(stm32mp_bsec),
 502                                                   &dev);
 503                 if (ret) {
 504                         pr_err("Can't find stm32mp_bsec driver\n");
 505                         return;
 506                 }
 507
 508                 ret = misc_read(dev, STM32_BSEC_SHADOW(18), &otp, 4);
 509                 if (ret > 0)
 510                         otp = otp & BIT(13);
 511
 512                 /* get VDD = vdd-supply */
 513                 ret = device_get_supply_regulator(pwr_dev, "vdd-supply",
 514                                                   &pwr_reg);
 515
 516                 /* check if VDD is Low Voltage */
 517                 if (!ret) {
 518                         if (regulator_get_value(pwr_reg) < 2700000) {
 519                                 writel(SYSCFG_IOCTRLSETR_HSLVEN_TRACE |
 520                                        SYSCFG_IOCTRLSETR_HSLVEN_QUADSPI |
 521                                        SYSCFG_IOCTRLSETR_HSLVEN_ETH |
 522                                        SYSCFG_IOCTRLSETR_HSLVEN_SDMMC |
 523                                        SYSCFG_IOCTRLSETR_HSLVEN_SPI,
 524                                        syscfg + SYSCFG_IOCTRLSETR);
 525
 526                                 if (!otp)
 527                                         pr_err("product_below_2v5=0: HSLVEN protected by HW\n");
 528                         } else {
 529                                 if (otp)
 530                                         pr_err("product_below_2v5=1: HSLVEN update is destructive, no update as VDD>2.7V\n");
 531                         }
 532                 } else {
 533                         debug("VDD unknown");
 534                 }
 535         }
 536 #endif
 537
 538         /* activate automatic I/O compensation
 539          * warning: need to ensure CSI enabled and ready in clock driver
 540          */
 541         writel(SYSCFG_CMPENSETR_MPU_EN, syscfg + SYSCFG_CMPENSETR);
 542
 543         while (!(readl(syscfg + SYSCFG_CMPCR) & SYSCFG_CMPCR_READY))
 544                 ;
 545         clrbits_le32(syscfg + SYSCFG_CMPCR, SYSCFG_CMPCR_SW_CTRL);
 546 #endif
 547 }
 548
 549 #ifdef CONFIG_DM_REGULATOR
 550 /* Fix to make I2C1 usable on DK2 for touchscreen usage in kernel */
 551 static int dk2_i2c1_fix(void)
 552 {
 553         ofnode node;
 554         struct gpio_desc hdmi, audio;
 555         int ret = 0;
 556
 557         node = ofnode_path("/soc/i2c@40012000/hdmi-transmitter@39");
 558         if (!ofnode_valid(node)) {
 559                 pr_debug("%s: no hdmi-transmitter@39 ?\n", __func__);
 560                 return -ENOENT;
 561         }
 562
 563         if (gpio_request_by_name_nodev(node, "reset-gpios", 0,
 564                                        &hdmi, GPIOD_IS_OUT)) {
 565                 pr_debug("%s: could not find reset-gpios\n",
 566                          __func__);
 567                 return -ENOENT;
 568         }
 569
 570         node = ofnode_path("/soc/i2c@40012000/cs42l51@4a");
 571         if (!ofnode_valid(node)) {
 572                 pr_debug("%s: no cs42l51@4a ?\n", __func__);
 573                 return -ENOENT;
 574         }
 575
 576         if (gpio_request_by_name_nodev(node, "reset-gpios", 0,
 577                                        &audio, GPIOD_IS_OUT)) {
 578                 pr_debug("%s: could not find reset-gpios\n",
 579                          __func__);
 580                 return -ENOENT;
 581         }
 582
 583         /* before power up, insure that HDMI and AUDIO IC is under reset */
 584         ret = dm_gpio_set_value(&hdmi, 1);
 585         if (ret) {
 586                 pr_err("%s: can't set_value for hdmi_nrst gpio", __func__);
 587                 goto error;
 588         }
 589         ret = dm_gpio_set_value(&audio, 1);
 590         if (ret) {
 591                 pr_err("%s: can't set_value for audio_nrst gpio", __func__);
 592                 goto error;
 593         }
 594
 595         /* power-up audio IC */
 596         regulator_autoset_by_name("v1v8_audio", NULL);
 597
 598         /* power-up HDMI IC */
 599         regulator_autoset_by_name("v1v2_hdmi", NULL);
 600         regulator_autoset_by_name("v3v3_hdmi", NULL);
 601
 602 error:
 603         return ret;
 604 }
 605
 606 static bool board_is_dk2(void)
 607 {
 608         if (CONFIG_IS_ENABLED(TARGET_STM32MP157C_DK2) &&
 609             of_machine_is_compatible("st,stm32mp157c-dk2"))
 610                 return true;
 611
 612         return false;
 613 }
 614 #endif
 615
 616 /* board dependent setup after realloc */
 617 int board_init(void)
 618 {
 619         struct udevice *dev;
 620
 621         /* address of boot parameters */
 622         gd->bd->bi_boot_params = STM32_DDR_BASE + 0x100;
 623
 624         /* probe all PINCTRL for hog */
 625         for (uclass_first_device(UCLASS_PINCTRL, &dev);
 626              dev;
 627              uclass_next_device(&dev)) {
 628                 pr_debug("probe pincontrol = %s\n", dev->name);
 629         }
 630
 631         board_key_check();
 632
 633 #ifdef CONFIG_DM_REGULATOR
 634         if (board_is_dk2())
 635                 dk2_i2c1_fix();
 636
 637         regulators_enable_boot_on(_DEBUG);
 638 #endif
 639
 640         sysconf_init();
 641
 642         if (CONFIG_IS_ENABLED(CONFIG_LED))
 643                 led_default_state();
 644
 645         return 0;
 646 }
 647
 648 int board_late_init(void)
 649 {
 650         char *boot_device;
 651 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 652         const void *fdt_compat;
 653         int fdt_compat_len;
 654         int ret;
 655         u32 otp;
 656         struct udevice *dev;
 657         char buf[10];
 658
 659         fdt_compat = fdt_getprop(gd->fdt_blob, 0, "compatible",
 660                                  &fdt_compat_len);
 661         if (fdt_compat && fdt_compat_len) {
 662                 if (strncmp(fdt_compat, "st,", 3) != 0)
 663                         env_set("board_name", fdt_compat);
 664                 else
 665                         env_set("board_name", fdt_compat + 3);
 666         }
 667         ret = uclass_get_device_by_driver(UCLASS_MISC,
 668                                           DM_GET_DRIVER(stm32mp_bsec),
 669                                           &dev);
 670
 671         if (!ret)
 672                 ret = misc_read(dev, STM32_BSEC_SHADOW(BSEC_OTP_BOARD),
 673                                 &otp, sizeof(otp));
 674         if (!ret && otp) {
 675                 snprintf(buf, sizeof(buf), "0x%04x", otp >> 16);
 676                 env_set("board_id", buf);
 677
 678                 snprintf(buf, sizeof(buf), "0x%04x",
 679                          ((otp >> 8) & 0xF) - 1 + 0xA);
 680                 env_set("board_rev", buf);
 681         }
 682 #endif
 683
 684 #ifdef CONFIG_ADC
 685         /* for DK1/DK2 boards */
 686         board_check_usb_power();
 687 #endif /* CONFIG_ADC */
 688
 689         /* Check the boot-source to disable bootdelay */
 690         boot_device = env_get("boot_device");
 691         if (!strcmp(boot_device, "serial") || !strcmp(boot_device, "usb"))
 692                 env_set("bootdelay", "0");
 693
 694         return 0;
 695 }
 696
 697 void board_quiesce_devices(void)
 698 {
 699 #ifdef CONFIG_LED
 700         setup_led(LEDST_OFF);
 701 #endif
 702 }
 703
 704 /* eth init function : weak called in eqos driver */
 705 int board_interface_eth_init(struct udevice *dev,
 706                              phy_interface_t interface_type)
 707 {
 708         u8 *syscfg;
 709         u32 value;
 710         bool eth_clk_sel_reg = false;
 711         bool eth_ref_clk_sel_reg = false;
 712
 713         /* Gigabit Ethernet 125MHz clock selection. */
 714         eth_clk_sel_reg = dev_read_bool(dev, "st,eth_clk_sel");
 715
 716         /* Ethernet 50Mhz RMII clock selection */
 717         eth_ref_clk_sel_reg =
 718                 dev_read_bool(dev, "st,eth_ref_clk_sel");
 719
 720         syscfg = (u8 *)syscon_get_first_range(STM32MP_SYSCON_SYSCFG);
 721
 722         if (!syscfg)
 723                 return -ENODEV;
 724
 725         switch (interface_type) {
 726         case PHY_INTERFACE_MODE_MII:
 727                 value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII |
 728                         SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
 729                 debug("%s: PHY_INTERFACE_MODE_MII\n", __func__);
 730                 break;
 731         case PHY_INTERFACE_MODE_GMII:
 732                 if (eth_clk_sel_reg)
 733                         value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII |
 734                                 SYSCFG_PMCSETR_ETH_CLK_SEL;
 735                 else
 736                         value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII;
 737                 debug("%s: PHY_INTERFACE_MODE_GMII\n", __func__);
 738                 break;
 739         case PHY_INTERFACE_MODE_RMII:
 740                 if (eth_ref_clk_sel_reg)
 741                         value = SYSCFG_PMCSETR_ETH_SEL_RMII |
 742                                 SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
 743                 else
 744                         value = SYSCFG_PMCSETR_ETH_SEL_RMII;
 745                 debug("%s: PHY_INTERFACE_MODE_RMII\n", __func__);
 746                 break;
 747         case PHY_INTERFACE_MODE_RGMII:
 748         case PHY_INTERFACE_MODE_RGMII_ID:
 749         case PHY_INTERFACE_MODE_RGMII_RXID:
 750         case PHY_INTERFACE_MODE_RGMII_TXID:
 751                 if (eth_clk_sel_reg)
 752                         value = SYSCFG_PMCSETR_ETH_SEL_RGMII |
 753                                 SYSCFG_PMCSETR_ETH_CLK_SEL;
 754                 else
 755                         value = SYSCFG_PMCSETR_ETH_SEL_RGMII;
 756                 debug("%s: PHY_INTERFACE_MODE_RGMII\n", __func__);
 757                 break;
 758         default:
 759                 debug("%s: Do not manage %d interface\n",
 760                       __func__, interface_type);
 761                 /* Do not manage others interfaces */
 762                 return -EINVAL;
 763         }
 764
 765         /* clear and set ETH configuration bits */
 766         writel(SYSCFG_PMCSETR_ETH_SEL_MASK | SYSCFG_PMCSETR_ETH_SELMII |
 767                SYSCFG_PMCSETR_ETH_REF_CLK_SEL | SYSCFG_PMCSETR_ETH_CLK_SEL,
 768                syscfg + SYSCFG_PMCCLRR);
 769         writel(value, syscfg + SYSCFG_PMCSETR);
 770
 771         return 0;
 772 }
 773
 774 enum env_location env_get_location(enum env_operation op, int prio)
 775 {
 776         u32 bootmode = get_bootmode();
 777
 778         if (prio)
 779                 return ENVL_UNKNOWN;
 780
 781         switch (bootmode & TAMP_BOOT_DEVICE_MASK) {
 782 #ifdef CONFIG_ENV_IS_IN_EXT4
 783         case BOOT_FLASH_SD:
 784         case BOOT_FLASH_EMMC:
 785                 return ENVL_EXT4;
 786 #endif
 787 #ifdef CONFIG_ENV_IS_IN_UBI
 788         case BOOT_FLASH_NAND:
 789                 return ENVL_UBI;
 790 #endif
 791 #ifdef CONFIG_ENV_IS_IN_SPI_FLASH
 792         case BOOT_FLASH_NOR:
 793                 return ENVL_SPI_FLASH;
 794 #endif
 795         default:
 796                 return ENVL_NOWHERE;
 797         }
 798 }
 799
 800 #if defined(CONFIG_ENV_IS_IN_EXT4)
 801 const char *env_ext4_get_intf(void)
 802 {
 803         u32 bootmode = get_bootmode();
 804
 805         switch (bootmode & TAMP_BOOT_DEVICE_MASK) {
 806         case BOOT_FLASH_SD:
 807         case BOOT_FLASH_EMMC:
 808                 return "mmc";
 809         default:
 810                 return "";
 811         }
 812 }
 813
 814 const char *env_ext4_get_dev_part(void)
 815 {
 816         static char *const dev_part[] = {"0:auto", "1:auto", "2:auto"};
 817         u32 bootmode = get_bootmode();
 818
 819         return dev_part[(bootmode & TAMP_BOOT_INSTANCE_MASK) - 1];
 820 }
 821 #endif
 822
 823 #ifdef CONFIG_SYS_MTDPARTS_RUNTIME
 824
 825 #define MTDPARTS_LEN            256
 826 #define MTDIDS_LEN              128
 827
 828 /**
 829  * The mtdparts_nand0 and mtdparts_nor0 variable tends to be long.
 830  * If we need to access it before the env is relocated, then we need
 831  * to use our own stack buffer. gd->env_buf will be too small.
 832  *
 833  * @param buf temporary buffer pointer MTDPARTS_LEN long
 834  * @return mtdparts variable string, NULL if not found
 835  */
 836 static const char *env_get_mtdparts(const char *str, char *buf)
 837 {
 838         if (gd->flags & GD_FLG_ENV_READY)
 839                 return env_get(str);
 840         if (env_get_f(str, buf, MTDPARTS_LEN) != -1)
 841                 return buf;
 842
 843         return NULL;
 844 }
 845
 846 /**
 847  * update the variables "mtdids" and "mtdparts" with content of mtdparts_<dev>
 848  */
 849 static void board_get_mtdparts(const char *dev,
 850                                char *mtdids,
 851                                char *mtdparts)
 852 {
 853         char env_name[32] = "mtdparts_";
 854         char tmp_mtdparts[MTDPARTS_LEN];
 855         const char *tmp;
 856
 857         /* name of env variable to read = mtdparts_<dev> */
 858         strcat(env_name, dev);
 859         tmp = env_get_mtdparts(env_name, tmp_mtdparts);
 860         if (tmp) {
 861                 /* mtdids: "<dev>=<dev>, ...." */
 862                 if (mtdids[0] != '\0')
 863                         strcat(mtdids, ",");
 864                 strcat(mtdids, dev);
 865                 strcat(mtdids, "=");
 866                 strcat(mtdids, dev);
 867
 868                 /* mtdparts: "mtdparts=<dev>:<mtdparts_<dev>>;..." */
 869                 if (mtdparts[0] != '\0')
 870                         strncat(mtdparts, ";", MTDPARTS_LEN);
 871                 else
 872                         strcat(mtdparts, "mtdparts=");
 873                 strncat(mtdparts, dev, MTDPARTS_LEN);
 874                 strncat(mtdparts, ":", MTDPARTS_LEN);
 875                 strncat(mtdparts, tmp, MTDPARTS_LEN);
 876         }
 877 }
 878
 879 void board_mtdparts_default(const char **mtdids, const char **mtdparts)
 880 {
 881         struct udevice *dev;
 882         static char parts[2 * MTDPARTS_LEN + 1];
 883         static char ids[MTDIDS_LEN + 1];
 884         static bool mtd_initialized;
 885
 886         if (mtd_initialized) {
 887                 *mtdids = ids;
 888                 *mtdparts = parts;
 889                 return;
 890         }
 891
 892         memset(parts, 0, sizeof(parts));
 893         memset(ids, 0, sizeof(ids));
 894
 895         if (!uclass_get_device(UCLASS_MTD, 0, &dev))
 896                 board_get_mtdparts("nand0", ids, parts);
 897
 898         if (!uclass_get_device(UCLASS_SPI_FLASH, 0, &dev))
 899                 board_get_mtdparts("nor0", ids, parts);
 900
 901         mtd_initialized = true;
 902         *mtdids = ids;
 903         *mtdparts = parts;
 904         debug("%s:mtdids=%s & mtdparts=%s\n", __func__, ids, parts);
 905 }
 906 #endif
 907
 908 #if defined(CONFIG_OF_BOARD_SETUP)
 909 int ft_board_setup(void *blob, bd_t *bd)
 910 {
 911 #ifdef CONFIG_FDT_FIXUP_PARTITIONS
 912         struct node_info nodes[] = {
 913                 { "st,stm32f469-qspi",          MTD_DEV_TYPE_NOR,  },
 914                 { "st,stm32mp15-fmc2",          MTD_DEV_TYPE_NAND, },
 915         };
 916         fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
 917 #endif
 918
 919         return 0;
 920 }
 921 #endif
 922
 923 static void board_copro_image_process(ulong fw_image, size_t fw_size)
 924 {
 925         int ret, id = 0; /* Copro id fixed to 0 as only one coproc on mp1 */
 926
 927         if (!rproc_is_initialized())
 928                 if (rproc_init()) {
 929                         printf("Remote Processor %d initialization failed\n",
 930                                id);
 931                         return;
 932                 }
 933
 934         ret = rproc_load(id, fw_image, fw_size);
 935         printf("Load Remote Processor %d with data@addr=0x%08lx %u bytes:%s\n",
 936                id, fw_image, fw_size, ret ? " Failed!" : " Success!");
 937
 938         if (!ret) {
 939                 rproc_start(id);
 940                 env_set("copro_state", "booted");
 941         }
 942 }
 943
 944 U_BOOT_FIT_LOADABLE_HANDLER(IH_TYPE_COPRO, board_copro_image_process);