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
   6 #define LOG_CATEGORY LOGC_BOARD
   7
   8 #include <common.h>
   9 #include <adc.h>
  10 #include <bootm.h>
  11 #include <clk.h>
  12 #include <config.h>
  13 #include <dm.h>
  14 #include <env.h>
  15 #include <env_internal.h>
  16 #include <fdt_support.h>
  17 #include <g_dnl.h>
  18 #include <generic-phy.h>
  19 #include <hang.h>
  20 #include <i2c.h>
  21 #include <init.h>
  22 #include <led.h>
  23 #include <log.h>
  24 #include <malloc.h>
  25 #include <misc.h>
  26 #include <mtd_node.h>
  27 #include <net.h>
  28 #include <netdev.h>
  29 #include <phy.h>
  30 #include <remoteproc.h>
  31 #include <reset.h>
  32 #include <syscon.h>
  33 #include <usb.h>
  34 #include <watchdog.h>
  35 #include <asm/global_data.h>
  36 #include <asm/io.h>
  37 #include <asm/gpio.h>
  38 #include <asm/arch/stm32.h>
  39 #include <asm/arch/sys_proto.h>
  40 #include <dm/ofnode.h>
  41 #include <jffs2/load_kernel.h>
  42 #include <linux/bitops.h>
  43 #include <linux/delay.h>
  44 #include <linux/err.h>
  45 #include <linux/iopoll.h>
  46 #include <power/regulator.h>
  47 #include <usb/dwc2_udc.h>
  48
  49 #include "../../st/common/stusb160x.h"
  50
  51 /* SYSCFG registers */
  52 #define SYSCFG_BOOTR            0x00
  53 #define SYSCFG_PMCSETR          0x04
  54 #define SYSCFG_IOCTRLSETR       0x18
  55 #define SYSCFG_ICNR             0x1C
  56 #define SYSCFG_CMPCR            0x20
  57 #define SYSCFG_CMPENSETR        0x24
  58 #define SYSCFG_PMCCLRR          0x44
  59
  60 #define SYSCFG_BOOTR_BOOT_MASK          GENMASK(2, 0)
  61 #define SYSCFG_BOOTR_BOOTPD_SHIFT       4
  62
  63 #define SYSCFG_IOCTRLSETR_HSLVEN_TRACE          BIT(0)
  64 #define SYSCFG_IOCTRLSETR_HSLVEN_QUADSPI        BIT(1)
  65 #define SYSCFG_IOCTRLSETR_HSLVEN_ETH            BIT(2)
  66 #define SYSCFG_IOCTRLSETR_HSLVEN_SDMMC          BIT(3)
  67 #define SYSCFG_IOCTRLSETR_HSLVEN_SPI            BIT(4)
  68
  69 #define SYSCFG_CMPCR_SW_CTRL            BIT(1)
  70 #define SYSCFG_CMPCR_READY              BIT(8)
  71
  72 #define SYSCFG_CMPENSETR_MPU_EN         BIT(0)
  73
  74 #define SYSCFG_PMCSETR_ETH_CLK_SEL      BIT(16)
  75 #define SYSCFG_PMCSETR_ETH_REF_CLK_SEL  BIT(17)
  76
  77 #define SYSCFG_PMCSETR_ETH_SELMII       BIT(20)
  78
  79 #define SYSCFG_PMCSETR_ETH_SEL_MASK     GENMASK(23, 21)
  80 #define SYSCFG_PMCSETR_ETH_SEL_GMII_MII 0
  81 #define SYSCFG_PMCSETR_ETH_SEL_RGMII    BIT(21)
  82 #define SYSCFG_PMCSETR_ETH_SEL_RMII     BIT(23)
  83
  84 /*
  85  * Get a global data pointer
  86  */
  87 DECLARE_GLOBAL_DATA_PTR;
  88
  89 #define USB_LOW_THRESHOLD_UV            200000
  90 #define USB_WARNING_LOW_THRESHOLD_UV    660000
  91 #define USB_START_LOW_THRESHOLD_UV      1230000
  92 #define USB_START_HIGH_THRESHOLD_UV     2150000
  93
  94 int board_early_init_f(void)
  95 {
  96         /* nothing to do, only used in SPL */
  97         return 0;
  98 }
  99
 100 int checkboard(void)
 101 {
 102         int ret;
 103         char *mode;
 104         u32 otp;
 105         struct udevice *dev;
 106         const char *fdt_compat;
 107         int fdt_compat_len;
 108
 109         if (IS_ENABLED(CONFIG_TFABOOT)) {
 110                 if (IS_ENABLED(CONFIG_STM32MP15x_STM32IMAGE))
 111                         mode = "trusted - stm32image";
 112                 else
 113                         mode = "trusted";
 114         } else {
 115                 mode = "basic";
 116         }
 117
 118         fdt_compat = fdt_getprop(gd->fdt_blob, 0, "compatible",
 119                                  &fdt_compat_len);
 120
 121         log_info("Board: stm32mp1 in %s mode (%s)\n", mode,
 122                  fdt_compat && fdt_compat_len ? fdt_compat : "");
 123
 124         /* display the STMicroelectronics board identification */
 125         if (CONFIG_IS_ENABLED(CMD_STBOARD)) {
 126                 ret = uclass_get_device_by_driver(UCLASS_MISC,
 127                                                   DM_DRIVER_GET(stm32mp_bsec),
 128                                                   &dev);
 129                 if (!ret)
 130                         ret = misc_read(dev, STM32_BSEC_SHADOW(BSEC_OTP_BOARD),
 131                                         &otp, sizeof(otp));
 132                 if (ret > 0 && otp)
 133                         log_info("Board: MB%04x Var%d.%d Rev.%c-%02d\n",
 134                                  otp >> 16,
 135                                  (otp >> 12) & 0xF,
 136                                  (otp >> 4) & 0xF,
 137                                  ((otp >> 8) & 0xF) - 1 + 'A',
 138                                  otp & 0xF);
 139         }
 140
 141         return 0;
 142 }
 143
 144 static void board_key_check(void)
 145 {
 146         ofnode node;
 147         struct gpio_desc gpio;
 148         enum forced_boot_mode boot_mode = BOOT_NORMAL;
 149
 150         if (!IS_ENABLED(CONFIG_FASTBOOT) && !IS_ENABLED(CONFIG_CMD_STM32PROG))
 151                 return;
 152
 153         node = ofnode_path("/config");
 154         if (!ofnode_valid(node)) {
 155                 log_debug("no /config node?\n");
 156                 return;
 157         }
 158         if (IS_ENABLED(CONFIG_FASTBOOT)) {
 159                 if (gpio_request_by_name_nodev(node, "st,fastboot-gpios", 0,
 160                                                &gpio, GPIOD_IS_IN)) {
 161                         log_debug("could not find a /config/st,fastboot-gpios\n");
 162                 } else {
 163                         udelay(20);
 164                         if (dm_gpio_get_value(&gpio)) {
 165                                 log_notice("Fastboot key pressed, ");
 166                                 boot_mode = BOOT_FASTBOOT;
 167                         }
 168
 169                         dm_gpio_free(NULL, &gpio);
 170                 }
 171         }
 172         if (IS_ENABLED(CONFIG_CMD_STM32PROG)) {
 173                 if (gpio_request_by_name_nodev(node, "st,stm32prog-gpios", 0,
 174                                                &gpio, GPIOD_IS_IN)) {
 175                         log_debug("could not find a /config/st,stm32prog-gpios\n");
 176                 } else {
 177                         udelay(20);
 178                         if (dm_gpio_get_value(&gpio)) {
 179                                 log_notice("STM32Programmer key pressed, ");
 180                                 boot_mode = BOOT_STM32PROG;
 181                         }
 182                         dm_gpio_free(NULL, &gpio);
 183                 }
 184         }
 185         if (boot_mode != BOOT_NORMAL) {
 186                 log_notice("entering download mode...\n");
 187                 clrsetbits_le32(TAMP_BOOT_CONTEXT,
 188                                 TAMP_BOOT_FORCED_MASK,
 189                                 boot_mode);
 190         }
 191 }
 192
 193 int g_dnl_board_usb_cable_connected(void)
 194 {
 195         struct udevice *dwc2_udc_otg;
 196         int ret;
 197
 198         if (!IS_ENABLED(CONFIG_USB_GADGET_DWC2_OTG))
 199                 return -ENODEV;
 200
 201         /* if typec stusb160x is present, means DK1 or DK2 board */
 202         ret = stusb160x_cable_connected();
 203         if (ret >= 0)
 204                 return ret;
 205
 206         ret = uclass_get_device_by_driver(UCLASS_USB_GADGET_GENERIC,
 207                                           DM_DRIVER_GET(dwc2_udc_otg),
 208                                           &dwc2_udc_otg);
 209         if (ret) {
 210                 log_debug("dwc2_udc_otg init failed\n");
 211                 return ret;
 212         }
 213
 214         return dwc2_udc_B_session_valid(dwc2_udc_otg);
 215 }
 216
 217 #ifdef CONFIG_USB_GADGET_DOWNLOAD
 218 #define STM32MP1_G_DNL_DFU_PRODUCT_NUM 0xdf11
 219 #define STM32MP1_G_DNL_FASTBOOT_PRODUCT_NUM 0x0afb
 220
 221 int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name)
 222 {
 223         if (IS_ENABLED(CONFIG_DFU_OVER_USB) &&
 224             !strcmp(name, "usb_dnl_dfu"))
 225                 put_unaligned(STM32MP1_G_DNL_DFU_PRODUCT_NUM, &dev->idProduct);
 226         else if (IS_ENABLED(CONFIG_FASTBOOT) &&
 227                  !strcmp(name, "usb_dnl_fastboot"))
 228                 put_unaligned(STM32MP1_G_DNL_FASTBOOT_PRODUCT_NUM,
 229                               &dev->idProduct);
 230         else
 231                 put_unaligned(CONFIG_USB_GADGET_PRODUCT_NUM, &dev->idProduct);
 232
 233         return 0;
 234 }
 235 #endif /* CONFIG_USB_GADGET_DOWNLOAD */
 236
 237 static int get_led(struct udevice **dev, char *led_string)
 238 {
 239         const char *led_name;
 240         int ret;
 241
 242         led_name = ofnode_conf_read_str(led_string);
 243         if (!led_name) {
 244                 log_debug("could not find %s config string\n", led_string);
 245                 return -ENOENT;
 246         }
 247         ret = led_get_by_label(led_name, dev);
 248         if (ret) {
 249                 log_debug("get=%d\n", ret);
 250                 return ret;
 251         }
 252
 253         return 0;
 254 }
 255
 256 static int setup_led(enum led_state_t cmd)
 257 {
 258         struct udevice *dev;
 259         int ret;
 260
 261         if (!CONFIG_IS_ENABLED(LED))
 262                 return 0;
 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
 272 static void __maybe_unused led_error_blink(u32 nb_blink)
 273 {
 274         int ret;
 275         struct udevice *led;
 276         u32 i;
 277
 278         if (!nb_blink)
 279                 return;
 280
 281         if (CONFIG_IS_ENABLED(LED)) {
 282                 ret = get_led(&led, "u-boot,error-led");
 283                 if (!ret) {
 284                         /* make u-boot,error-led blinking */
 285                         /* if U32_MAX and 125ms interval, for 17.02 years */
 286                         for (i = 0; i < 2 * nb_blink; i++) {
 287                                 led_set_state(led, LEDST_TOGGLE);
 288                                 mdelay(125);
 289                                 WATCHDOG_RESET();
 290                         }
 291                         led_set_state(led, LEDST_ON);
 292                 }
 293         }
 294
 295         /* infinite: the boot process must be stopped */
 296         if (nb_blink == U32_MAX)
 297                 hang();
 298 }
 299
 300 static int adc_measurement(ofnode node, int adc_count, int *min_uV, int *max_uV)
 301 {
 302         struct ofnode_phandle_args adc_args;
 303         struct udevice *adc;
 304         unsigned int raw;
 305         int ret, uV;
 306         int i;
 307
 308         for (i = 0; i < adc_count; i++) {
 309                 if (ofnode_parse_phandle_with_args(node, "st,adc_usb_pd",
 310                                                    "#io-channel-cells", 0, i,
 311                                                    &adc_args)) {
 312                         log_debug("can't find /config/st,adc_usb_pd\n");
 313                         return 0;
 314                 }
 315
 316                 ret = uclass_get_device_by_ofnode(UCLASS_ADC, adc_args.node,
 317                                                   &adc);
 318
 319                 if (ret) {
 320                         log_err("Can't get adc device(%d)\n", ret);
 321                         return ret;
 322                 }
 323
 324                 ret = adc_channel_single_shot(adc->name, adc_args.args[0],
 325                                               &raw);
 326                 if (ret) {
 327                         log_err("single shot failed for %s[%d]!\n",
 328                                 adc->name, adc_args.args[0]);
 329                         return ret;
 330                 }
 331                 /* Convert to uV */
 332                 if (!adc_raw_to_uV(adc, raw, &uV)) {
 333                         if (uV > *max_uV)
 334                                 *max_uV = uV;
 335                         if (uV < *min_uV)
 336                                 *min_uV = uV;
 337                         log_debug("%s[%02d] = %u, %d uV\n",
 338                                   adc->name, adc_args.args[0], raw, uV);
 339                 } else {
 340                         log_err("Can't get uV value for %s[%d]\n",
 341                                 adc->name, adc_args.args[0]);
 342                 }
 343         }
 344
 345         return 0;
 346 }
 347
 348 static int board_check_usb_power(void)
 349 {
 350         ofnode node;
 351         int max_uV = 0;
 352         int min_uV = USB_START_HIGH_THRESHOLD_UV;
 353         int adc_count, ret;
 354         u32 nb_blink;
 355         u8 i;
 356
 357         if (!IS_ENABLED(CONFIG_ADC))
 358                 return -ENODEV;
 359
 360         node = ofnode_path("/config");
 361         if (!ofnode_valid(node)) {
 362                 log_debug("no /config node?\n");
 363                 return -ENOENT;
 364         }
 365
 366         /*
 367          * Retrieve the ADC channels devices and get measurement
 368          * for each of them
 369          */
 370         adc_count = ofnode_count_phandle_with_args(node, "st,adc_usb_pd",
 371                                                    "#io-channel-cells", 0);
 372         if (adc_count < 0) {
 373                 if (adc_count == -ENOENT)
 374                         return 0;
 375
 376                 log_err("Can't find adc channel (%d)\n", adc_count);
 377
 378                 return adc_count;
 379         }
 380
 381         /* perform maximum of 2 ADC measurements to detect power supply current */
 382         for (i = 0; i < 2; i++) {
 383                 ret = adc_measurement(node, adc_count, &min_uV, &max_uV);
 384                 if (ret)
 385                         return ret;
 386
 387                 /*
 388                  * If highest value is inside 1.23 Volts and 2.10 Volts, that means
 389                  * board is plugged on an USB-C 3A power supply and boot process can
 390                  * continue.
 391                  */
 392                 if (max_uV > USB_START_LOW_THRESHOLD_UV &&
 393                     max_uV <= USB_START_HIGH_THRESHOLD_UV &&
 394                     min_uV <= USB_LOW_THRESHOLD_UV)
 395                         return 0;
 396
 397                 if (i == 0) {
 398                         log_err("Previous ADC measurements was not the one expected, retry in 20ms\n");
 399                         mdelay(20);  /* equal to max tPDDebounce duration (min 10ms - max 20ms) */
 400                 }
 401         }
 402
 403         log_notice("****************************************************\n");
 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                 log_notice("* ERROR USB TYPE-C connection in unattached mode   *\n");
 415                 log_notice("* 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                 log_notice("*        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                 log_notice("*       WARNING 1.5A 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                 log_notice("*      USB TYPE-C charger not compliant with       *\n");
 440                 log_notice("*                   specification                  *\n");
 441                 log_notice("****************************************************\n\n");
 442                 /* with 125ms interval, led will blink for 17.02 years ....*/
 443                 nb_blink = U32_MAX;
 444         } else {
 445                 log_notice("*     Current too low, use a 3A power supply!      *\n");
 446                 log_notice("****************************************************\n\n");
 447         }
 448
 449         led_error_blink(nb_blink);
 450
 451         return 0;
 452 }
 453
 454 static void sysconf_init(void)
 455 {
 456         u8 *syscfg;
 457         struct udevice *pwr_dev;
 458         struct udevice *pwr_reg;
 459         struct udevice *dev;
 460         u32 otp = 0;
 461         int ret;
 462         u32 bootr, val;
 463
 464         syscfg = (u8 *)syscon_get_first_range(STM32MP_SYSCON_SYSCFG);
 465
 466         /* interconnect update : select master using the port 1 */
 467         /* LTDC = AXI_M9 */
 468         /* GPU  = AXI_M8 */
 469         /* today information is hardcoded in U-Boot */
 470         writel(BIT(9), syscfg + SYSCFG_ICNR);
 471
 472         /* disable Pull-Down for boot pin connected to VDD */
 473         bootr = readl(syscfg + SYSCFG_BOOTR);
 474         bootr &= ~(SYSCFG_BOOTR_BOOT_MASK << SYSCFG_BOOTR_BOOTPD_SHIFT);
 475         bootr |= (bootr & SYSCFG_BOOTR_BOOT_MASK) << SYSCFG_BOOTR_BOOTPD_SHIFT;
 476         writel(bootr, syscfg + SYSCFG_BOOTR);
 477
 478         /* High Speed Low Voltage Pad mode Enable for SPI, SDMMC, ETH, QSPI
 479          * and TRACE. Needed above ~50MHz and conditioned by AFMUX selection.
 480          * The customer will have to disable this for low frequencies
 481          * or if AFMUX is selected but the function not used, typically for
 482          * TRACE. Otherwise, impact on power consumption.
 483          *
 484          * WARNING:
 485          *   enabling High Speed mode while VDD>2.7V
 486          *   with the OTP product_below_2v5 (OTP 18, BIT 13)
 487          *   erroneously set to 1 can damage the IC!
 488          *   => U-Boot set the register only if VDD < 2.7V (in DT)
 489          *      but this value need to be consistent with board design
 490          */
 491         ret = uclass_get_device_by_driver(UCLASS_PMIC,
 492                                           DM_DRIVER_GET(stm32mp_pwr_pmic),
 493                                           &pwr_dev);
 494         if (!ret && IS_ENABLED(CONFIG_DM_REGULATOR)) {
 495                 ret = uclass_get_device_by_driver(UCLASS_MISC,
 496                                                   DM_DRIVER_GET(stm32mp_bsec),
 497                                                   &dev);
 498                 if (ret) {
 499                         log_err("Can't find stm32mp_bsec driver\n");
 500                         return;
 501                 }
 502
 503                 ret = misc_read(dev, STM32_BSEC_SHADOW(18), &otp, 4);
 504                 if (ret > 0)
 505                         otp = otp & BIT(13);
 506
 507                 /* get VDD = vdd-supply */
 508                 ret = device_get_supply_regulator(pwr_dev, "vdd-supply",
 509                                                   &pwr_reg);
 510
 511                 /* check if VDD is Low Voltage */
 512                 if (!ret) {
 513                         if (regulator_get_value(pwr_reg) < 2700000) {
 514                                 writel(SYSCFG_IOCTRLSETR_HSLVEN_TRACE |
 515                                        SYSCFG_IOCTRLSETR_HSLVEN_QUADSPI |
 516                                        SYSCFG_IOCTRLSETR_HSLVEN_ETH |
 517                                        SYSCFG_IOCTRLSETR_HSLVEN_SDMMC |
 518                                        SYSCFG_IOCTRLSETR_HSLVEN_SPI,
 519                                        syscfg + SYSCFG_IOCTRLSETR);
 520
 521                                 if (!otp)
 522                                         log_err("product_below_2v5=0: HSLVEN protected by HW\n");
 523                         } else {
 524                                 if (otp)
 525                                         log_err("product_below_2v5=1: HSLVEN update is destructive, no update as VDD>2.7V\n");
 526                         }
 527                 } else {
 528                         log_debug("VDD unknown");
 529                 }
 530         }
 531
 532         /* activate automatic I/O compensation
 533          * warning: need to ensure CSI enabled and ready in clock driver
 534          */
 535         writel(SYSCFG_CMPENSETR_MPU_EN, syscfg + SYSCFG_CMPENSETR);
 536
 537         /* poll until ready (1s timeout) */
 538         ret = readl_poll_timeout(syscfg + SYSCFG_CMPCR, val,
 539                                  val & SYSCFG_CMPCR_READY,
 540                                  1000000);
 541         if (ret) {
 542                 log_err("SYSCFG: I/O compensation failed, timeout.\n");
 543                 led_error_blink(10);
 544         }
 545
 546         clrbits_le32(syscfg + SYSCFG_CMPCR, SYSCFG_CMPCR_SW_CTRL);
 547 }
 548
 549 /* Fix to make I2C1 usable on DK2 for touchscreen usage in kernel */
 550 static int dk2_i2c1_fix(void)
 551 {
 552         ofnode node;
 553         struct gpio_desc hdmi, audio;
 554         int ret = 0;
 555
 556         if (!IS_ENABLED(CONFIG_DM_REGULATOR))
 557                 return -ENODEV;
 558
 559         node = ofnode_path("/soc/i2c@40012000/hdmi-transmitter@39");
 560         if (!ofnode_valid(node)) {
 561                 log_debug("no hdmi-transmitter@39 ?\n");
 562                 return -ENOENT;
 563         }
 564
 565         if (gpio_request_by_name_nodev(node, "reset-gpios", 0,
 566                                        &hdmi, GPIOD_IS_OUT)) {
 567                 log_debug("could not find reset-gpios\n");
 568                 return -ENOENT;
 569         }
 570
 571         node = ofnode_path("/soc/i2c@40012000/cs42l51@4a");
 572         if (!ofnode_valid(node)) {
 573                 log_debug("no cs42l51@4a ?\n");
 574                 return -ENOENT;
 575         }
 576
 577         if (gpio_request_by_name_nodev(node, "reset-gpios", 0,
 578                                        &audio, GPIOD_IS_OUT)) {
 579                 log_debug("could not find reset-gpios\n");
 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                 log_err("can't set_value for hdmi_nrst gpio");
 587                 goto error;
 588         }
 589         ret = dm_gpio_set_value(&audio, 1);
 590         if (ret) {
 591                 log_err("can't set_value for audio_nrst gpio");
 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_ST_STM32MP15x) &&
 609             of_machine_is_compatible("st,stm32mp157c-dk2"))
 610                 return true;
 611
 612         return false;
 613 }
 614
 615 static bool board_is_ev1(void)
 616 {
 617         if (CONFIG_IS_ENABLED(TARGET_ST_STM32MP15x) &&
 618             (of_machine_is_compatible("st,stm32mp157a-ev1") ||
 619              of_machine_is_compatible("st,stm32mp157c-ev1") ||
 620              of_machine_is_compatible("st,stm32mp157d-ev1") ||
 621              of_machine_is_compatible("st,stm32mp157f-ev1")))
 622                 return true;
 623
 624         return false;
 625 }
 626
 627 /* touchscreen driver: only used for pincontrol configuration */
 628 static const struct udevice_id goodix_ids[] = {
 629         { .compatible = "goodix,gt9147", },
 630         { }
 631 };
 632
 633 U_BOOT_DRIVER(goodix) = {
 634         .name           = "goodix",
 635         .id             = UCLASS_NOP,
 636         .of_match       = goodix_ids,
 637 };
 638
 639 static void board_ev1_init(void)
 640 {
 641         struct udevice *dev;
 642
 643         /* configure IRQ line on EV1 for touchscreen before LCD reset */
 644         uclass_get_device_by_driver(UCLASS_NOP, DM_DRIVER_GET(goodix), &dev);
 645 }
 646
 647 /* board dependent setup after realloc */
 648 int board_init(void)
 649 {
 650         board_key_check();
 651
 652         if (board_is_ev1())
 653                 board_ev1_init();
 654
 655         if (board_is_dk2())
 656                 dk2_i2c1_fix();
 657
 658         if (IS_ENABLED(CONFIG_DM_REGULATOR))
 659                 regulators_enable_boot_on(_DEBUG);
 660
 661         /*
 662          * sysconf initialisation done only when U-Boot is running in secure
 663          * done in TF-A for TFABOOT.
 664          */
 665         if (IS_ENABLED(CONFIG_ARMV7_NONSEC))
 666                 sysconf_init();
 667
 668         if (CONFIG_IS_ENABLED(LED))
 669                 led_default_state();
 670
 671         setup_led(LEDST_ON);
 672
 673         return 0;
 674 }
 675
 676 int board_late_init(void)
 677 {
 678         const void *fdt_compat;
 679         int fdt_compat_len;
 680         int ret;
 681         u32 otp;
 682         struct udevice *dev;
 683         char buf[10];
 684         char dtb_name[256];
 685         int buf_len;
 686
 687         if (IS_ENABLED(CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG)) {
 688                 fdt_compat = fdt_getprop(gd->fdt_blob, 0, "compatible",
 689                                          &fdt_compat_len);
 690                 if (fdt_compat && fdt_compat_len) {
 691                         if (strncmp(fdt_compat, "st,", 3) != 0) {
 692                                 env_set("board_name", fdt_compat);
 693                         } else {
 694                                 env_set("board_name", fdt_compat + 3);
 695
 696                                 buf_len = sizeof(dtb_name);
 697                                 strncpy(dtb_name, fdt_compat + 3, buf_len);
 698                                 buf_len -= strlen(fdt_compat + 3);
 699                                 strncat(dtb_name, ".dtb", buf_len);
 700                                 env_set("fdtfile", dtb_name);
 701                         }
 702                 }
 703                 ret = uclass_get_device_by_driver(UCLASS_MISC,
 704                                                   DM_DRIVER_GET(stm32mp_bsec),
 705                                                   &dev);
 706
 707                 if (!ret)
 708                         ret = misc_read(dev, STM32_BSEC_SHADOW(BSEC_OTP_BOARD),
 709                                         &otp, sizeof(otp));
 710                 if (ret > 0 && otp) {
 711                         snprintf(buf, sizeof(buf), "0x%04x", otp >> 16);
 712                         env_set("board_id", buf);
 713
 714                         snprintf(buf, sizeof(buf), "0x%04x",
 715                                  ((otp >> 8) & 0xF) - 1 + 0xA);
 716                         env_set("board_rev", buf);
 717                 }
 718         }
 719
 720         /* for DK1/DK2 boards */
 721         board_check_usb_power();
 722
 723         return 0;
 724 }
 725
 726 void board_quiesce_devices(void)
 727 {
 728         setup_led(LEDST_OFF);
 729 }
 730
 731 /* eth init function : weak called in eqos driver */
 732 int board_interface_eth_init(struct udevice *dev,
 733                              phy_interface_t interface_type)
 734 {
 735         u8 *syscfg;
 736         u32 value;
 737         bool eth_clk_sel_reg = false;
 738         bool eth_ref_clk_sel_reg = false;
 739
 740         /* Gigabit Ethernet 125MHz clock selection. */
 741         eth_clk_sel_reg = dev_read_bool(dev, "st,eth-clk-sel");
 742
 743         /* Ethernet 50Mhz RMII clock selection */
 744         eth_ref_clk_sel_reg =
 745                 dev_read_bool(dev, "st,eth-ref-clk-sel");
 746
 747         syscfg = (u8 *)syscon_get_first_range(STM32MP_SYSCON_SYSCFG);
 748
 749         if (!syscfg)
 750                 return -ENODEV;
 751
 752         switch (interface_type) {
 753         case PHY_INTERFACE_MODE_MII:
 754                 value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII |
 755                         SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
 756                 log_debug("PHY_INTERFACE_MODE_MII\n");
 757                 break;
 758         case PHY_INTERFACE_MODE_GMII:
 759                 if (eth_clk_sel_reg)
 760                         value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII |
 761                                 SYSCFG_PMCSETR_ETH_CLK_SEL;
 762                 else
 763                         value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII;
 764                 log_debug("PHY_INTERFACE_MODE_GMII\n");
 765                 break;
 766         case PHY_INTERFACE_MODE_RMII:
 767                 if (eth_ref_clk_sel_reg)
 768                         value = SYSCFG_PMCSETR_ETH_SEL_RMII |
 769                                 SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
 770                 else
 771                         value = SYSCFG_PMCSETR_ETH_SEL_RMII;
 772                 log_debug("PHY_INTERFACE_MODE_RMII\n");
 773                 break;
 774         case PHY_INTERFACE_MODE_RGMII:
 775         case PHY_INTERFACE_MODE_RGMII_ID:
 776         case PHY_INTERFACE_MODE_RGMII_RXID:
 777         case PHY_INTERFACE_MODE_RGMII_TXID:
 778                 if (eth_clk_sel_reg)
 779                         value = SYSCFG_PMCSETR_ETH_SEL_RGMII |
 780                                 SYSCFG_PMCSETR_ETH_CLK_SEL;
 781                 else
 782                         value = SYSCFG_PMCSETR_ETH_SEL_RGMII;
 783                 log_debug("PHY_INTERFACE_MODE_RGMII\n");
 784                 break;
 785         default:
 786                 log_debug("Do not manage %d interface\n",
 787                           interface_type);
 788                 /* Do not manage others interfaces */
 789                 return -EINVAL;
 790         }
 791
 792         /* clear and set ETH configuration bits */
 793         writel(SYSCFG_PMCSETR_ETH_SEL_MASK | SYSCFG_PMCSETR_ETH_SELMII |
 794                SYSCFG_PMCSETR_ETH_REF_CLK_SEL | SYSCFG_PMCSETR_ETH_CLK_SEL,
 795                syscfg + SYSCFG_PMCCLRR);
 796         writel(value, syscfg + SYSCFG_PMCSETR);
 797
 798         return 0;
 799 }
 800
 801 enum env_location env_get_location(enum env_operation op, int prio)
 802 {
 803         u32 bootmode = get_bootmode();
 804
 805         if (prio)
 806                 return ENVL_UNKNOWN;
 807
 808         switch (bootmode & TAMP_BOOT_DEVICE_MASK) {
 809         case BOOT_FLASH_SD:
 810         case BOOT_FLASH_EMMC:
 811                 if (CONFIG_IS_ENABLED(ENV_IS_IN_MMC))
 812                         return ENVL_MMC;
 813                 else if (CONFIG_IS_ENABLED(ENV_IS_IN_EXT4))
 814                         return ENVL_EXT4;
 815                 else
 816                         return ENVL_NOWHERE;
 817
 818         case BOOT_FLASH_NAND:
 819         case BOOT_FLASH_SPINAND:
 820                 if (CONFIG_IS_ENABLED(ENV_IS_IN_UBI))
 821                         return ENVL_UBI;
 822                 else
 823                         return ENVL_NOWHERE;
 824
 825         case BOOT_FLASH_NOR:
 826                 if (CONFIG_IS_ENABLED(ENV_IS_IN_SPI_FLASH))
 827                         return ENVL_SPI_FLASH;
 828                 else
 829                         return ENVL_NOWHERE;
 830
 831         default:
 832                 return ENVL_NOWHERE;
 833         }
 834 }
 835
 836 const char *env_ext4_get_intf(void)
 837 {
 838         u32 bootmode = get_bootmode();
 839
 840         switch (bootmode & TAMP_BOOT_DEVICE_MASK) {
 841         case BOOT_FLASH_SD:
 842         case BOOT_FLASH_EMMC:
 843                 return "mmc";
 844         default:
 845                 return "";
 846         }
 847 }
 848
 849 int mmc_get_boot(void)
 850 {
 851         struct udevice *dev;
 852         u32 boot_mode = get_bootmode();
 853         unsigned int instance = (boot_mode & TAMP_BOOT_INSTANCE_MASK) - 1;
 854         char cmd[20];
 855         const u32 sdmmc_addr[] = {
 856                 STM32_SDMMC1_BASE,
 857                 STM32_SDMMC2_BASE,
 858                 STM32_SDMMC3_BASE
 859         };
 860
 861         if (instance > ARRAY_SIZE(sdmmc_addr))
 862                 return 0;
 863
 864         /* search associated sdmmc node in devicetree */
 865         snprintf(cmd, sizeof(cmd), "mmc@%x", sdmmc_addr[instance]);
 866         if (uclass_get_device_by_name(UCLASS_MMC, cmd, &dev)) {
 867                 log_err("mmc%d = %s not found in device tree!\n", instance, cmd);
 868                 return 0;
 869         }
 870
 871         return dev_seq(dev);
 872 };
 873
 874 const char *env_ext4_get_dev_part(void)
 875 {
 876         static char *const env_dev_part =
 877 #ifdef CONFIG_ENV_EXT4_DEVICE_AND_PART
 878                 CONFIG_ENV_EXT4_DEVICE_AND_PART;
 879 #else
 880                 "";
 881 #endif
 882         static char *const dev_part[] = {"0:auto", "1:auto", "2:auto"};
 883
 884         if (strlen(env_dev_part) > 0)
 885                 return env_dev_part;
 886
 887         return dev_part[mmc_get_boot()];
 888 }
 889
 890 int mmc_get_env_dev(void)
 891 {
 892         if (CONFIG_SYS_MMC_ENV_DEV >= 0)
 893                 return CONFIG_SYS_MMC_ENV_DEV;
 894
 895         /* use boot instance to select the correct mmc device identifier */
 896         return mmc_get_boot();
 897 }
 898
 899 #if defined(CONFIG_OF_BOARD_SETUP)
 900 int ft_board_setup(void *blob, struct bd_info *bd)
 901 {
 902         static const struct node_info nodes[] = {
 903                 { "st,stm32f469-qspi",          MTD_DEV_TYPE_NOR,  },
 904                 { "st,stm32f469-qspi",          MTD_DEV_TYPE_SPINAND},
 905                 { "st,stm32mp15-fmc2",          MTD_DEV_TYPE_NAND, },
 906                 { "st,stm32mp1-fmc2-nfc",       MTD_DEV_TYPE_NAND, },
 907         };
 908         char *boot_device;
 909
 910         /* Check the boot-source and don't update MTD for serial or usb boot */
 911         boot_device = env_get("boot_device");
 912         if (!boot_device ||
 913             (strcmp(boot_device, "serial") && strcmp(boot_device, "usb")))
 914                 if (IS_ENABLED(CONFIG_FDT_FIXUP_PARTITIONS))
 915                         fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
 916
 917         return 0;
 918 }
 919 #endif
 920
 921 static void board_copro_image_process(ulong fw_image, size_t fw_size)
 922 {
 923         int ret, id = 0; /* Copro id fixed to 0 as only one coproc on mp1 */
 924
 925         if (!rproc_is_initialized())
 926                 if (rproc_init()) {
 927                         log_err("Remote Processor %d initialization failed\n",
 928                                 id);
 929                         return;
 930                 }
 931
 932         ret = rproc_load(id, fw_image, fw_size);
 933         log_err("Load Remote Processor %d with data@addr=0x%08lx %u bytes:%s\n",
 934                 id, fw_image, fw_size, ret ? " Failed!" : " Success!");
 935
 936         if (!ret)
 937                 rproc_start(id);
 938 }
 939
 940 U_BOOT_FIT_LOADABLE_HANDLER(IH_TYPE_COPRO, board_copro_image_process);