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 <fdt_support.h>
  14 #include <g_dnl.h>
  15 #include <generic-phy.h>
  16 #include <hang.h>
  17 #include <i2c.h>
  18 #include <init.h>
  19 #include <led.h>
  20 #include <log.h>
  21 #include <malloc.h>
  22 #include <misc.h>
  23 #include <mtd_node.h>
  24 #include <net.h>
  25 #include <netdev.h>
  26 #include <phy.h>
  27 #include <remoteproc.h>
  28 #include <reset.h>
  29 #include <syscon.h>
  30 #include <usb.h>
  31 #include <watchdog.h>
  32 #include <asm/io.h>
  33 #include <asm/gpio.h>
  34 #include <asm/arch/stm32.h>
  35 #include <asm/arch/sys_proto.h>
  36 #include <jffs2/load_kernel.h>
  37 #include <linux/delay.h>
  38 #include <linux/err.h>
  39 #include <linux/iopoll.h>
  40 #include <power/regulator.h>
  41 #include <usb/dwc2_udc.h>
  42
  43 /* SYSCFG registers */
  44 #define SYSCFG_BOOTR            0x00
  45 #define SYSCFG_PMCSETR          0x04
  46 #define SYSCFG_IOCTRLSETR       0x18
  47 #define SYSCFG_ICNR             0x1C
  48 #define SYSCFG_CMPCR            0x20
  49 #define SYSCFG_CMPENSETR        0x24
  50 #define SYSCFG_PMCCLRR          0x44
  51
  52 #define SYSCFG_BOOTR_BOOT_MASK          GENMASK(2, 0)
  53 #define SYSCFG_BOOTR_BOOTPD_SHIFT       4
  54
  55 #define SYSCFG_IOCTRLSETR_HSLVEN_TRACE          BIT(0)
  56 #define SYSCFG_IOCTRLSETR_HSLVEN_QUADSPI        BIT(1)
  57 #define SYSCFG_IOCTRLSETR_HSLVEN_ETH            BIT(2)
  58 #define SYSCFG_IOCTRLSETR_HSLVEN_SDMMC          BIT(3)
  59 #define SYSCFG_IOCTRLSETR_HSLVEN_SPI            BIT(4)
  60
  61 #define SYSCFG_CMPCR_SW_CTRL            BIT(1)
  62 #define SYSCFG_CMPCR_READY              BIT(8)
  63
  64 #define SYSCFG_CMPENSETR_MPU_EN         BIT(0)
  65
  66 #define SYSCFG_PMCSETR_ETH_CLK_SEL      BIT(16)
  67 #define SYSCFG_PMCSETR_ETH_REF_CLK_SEL  BIT(17)
  68
  69 #define SYSCFG_PMCSETR_ETH_SELMII       BIT(20)
  70
  71 #define SYSCFG_PMCSETR_ETH_SEL_MASK     GENMASK(23, 21)
  72 #define SYSCFG_PMCSETR_ETH_SEL_GMII_MII 0
  73 #define SYSCFG_PMCSETR_ETH_SEL_RGMII    BIT(21)
  74 #define SYSCFG_PMCSETR_ETH_SEL_RMII     BIT(23)
  75
  76 /*
  77  * Get a global data pointer
  78  */
  79 DECLARE_GLOBAL_DATA_PTR;
  80
  81 #define USB_LOW_THRESHOLD_UV            200000
  82 #define USB_WARNING_LOW_THRESHOLD_UV    660000
  83 #define USB_START_LOW_THRESHOLD_UV      1230000
  84 #define USB_START_HIGH_THRESHOLD_UV     2150000
  85
  86 int checkboard(void)
  87 {
  88         int ret;
  89         char *mode;
  90         u32 otp;
  91         struct udevice *dev;
  92         const char *fdt_compat;
  93         int fdt_compat_len;
  94
  95         if (IS_ENABLED(CONFIG_TFABOOT))
  96                 mode = "trusted";
  97         else
  98                 mode = "basic";
  99
 100         printf("Board: stm32mp1 in %s mode", mode);
 101         fdt_compat = fdt_getprop(gd->fdt_blob, 0, "compatible",
 102                                  &fdt_compat_len);
 103         if (fdt_compat && fdt_compat_len)
 104                 printf(" (%s)", fdt_compat);
 105         puts("\n");
 106
 107         /* display the STMicroelectronics board identification */
 108         if (CONFIG_IS_ENABLED(CMD_STBOARD)) {
 109                 ret = uclass_get_device_by_driver(UCLASS_MISC,
 110                                                   DM_GET_DRIVER(stm32mp_bsec),
 111                                                   &dev);
 112                 if (!ret)
 113                         ret = misc_read(dev, STM32_BSEC_SHADOW(BSEC_OTP_BOARD),
 114                                         &otp, sizeof(otp));
 115                 if (ret > 0 && otp)
 116                         printf("Board: MB%04x Var%d.%d Rev.%c-%02d\n",
 117                                otp >> 16,
 118                                (otp >> 12) & 0xF,
 119                                (otp >> 4) & 0xF,
 120                                ((otp >> 8) & 0xF) - 1 + 'A',
 121                                otp & 0xF);
 122         }
 123
 124         return 0;
 125 }
 126
 127 static void board_key_check(void)
 128 {
 129 #if defined(CONFIG_FASTBOOT) || defined(CONFIG_CMD_STM32PROG)
 130         ofnode node;
 131         struct gpio_desc gpio;
 132         enum forced_boot_mode boot_mode = BOOT_NORMAL;
 133
 134         node = ofnode_path("/config");
 135         if (!ofnode_valid(node)) {
 136                 debug("%s: no /config node?\n", __func__);
 137                 return;
 138         }
 139 #ifdef CONFIG_FASTBOOT
 140         if (gpio_request_by_name_nodev(node, "st,fastboot-gpios", 0,
 141                                        &gpio, GPIOD_IS_IN)) {
 142                 debug("%s: could not find a /config/st,fastboot-gpios\n",
 143                       __func__);
 144         } else {
 145                 if (dm_gpio_get_value(&gpio)) {
 146                         puts("Fastboot key pressed, ");
 147                         boot_mode = BOOT_FASTBOOT;
 148                 }
 149
 150                 dm_gpio_free(NULL, &gpio);
 151         }
 152 #endif
 153 #ifdef CONFIG_CMD_STM32PROG
 154         if (gpio_request_by_name_nodev(node, "st,stm32prog-gpios", 0,
 155                                        &gpio, GPIOD_IS_IN)) {
 156                 debug("%s: could not find a /config/st,stm32prog-gpios\n",
 157                       __func__);
 158         } else {
 159                 if (dm_gpio_get_value(&gpio)) {
 160                         puts("STM32Programmer key pressed, ");
 161                         boot_mode = BOOT_STM32PROG;
 162                 }
 163                 dm_gpio_free(NULL, &gpio);
 164         }
 165 #endif
 166
 167         if (boot_mode != BOOT_NORMAL) {
 168                 puts("entering download mode...\n");
 169                 clrsetbits_le32(TAMP_BOOT_CONTEXT,
 170                                 TAMP_BOOT_FORCED_MASK,
 171                                 boot_mode);
 172         }
 173 #endif
 174 }
 175
 176 #if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG)
 177
 178 /* STMicroelectronics STUSB1600 Type-C controller */
 179 #define STUSB1600_CC_CONNECTION_STATUS          0x0E
 180
 181 /* STUSB1600_CC_CONNECTION_STATUS bitfields */
 182 #define STUSB1600_CC_ATTACH                     BIT(0)
 183
 184 static int stusb1600_init(struct udevice **dev_stusb1600)
 185 {
 186         ofnode node;
 187         struct udevice *dev, *bus;
 188         int ret;
 189         u32 chip_addr;
 190
 191         *dev_stusb1600 = NULL;
 192
 193         /* if node stusb1600 is present, means DK1 or DK2 board */
 194         node = ofnode_by_compatible(ofnode_null(), "st,stusb1600");
 195         if (!ofnode_valid(node))
 196                 return -ENODEV;
 197
 198         ret = ofnode_read_u32(node, "reg", &chip_addr);
 199         if (ret)
 200                 return -EINVAL;
 201
 202         ret = uclass_get_device_by_ofnode(UCLASS_I2C, ofnode_get_parent(node),
 203                                           &bus);
 204         if (ret) {
 205                 printf("bus for stusb1600 not found\n");
 206                 return -ENODEV;
 207         }
 208
 209         ret = dm_i2c_probe(bus, chip_addr, 0, &dev);
 210         if (!ret)
 211                 *dev_stusb1600 = dev;
 212
 213         return ret;
 214 }
 215
 216 static int stusb1600_cable_connected(struct udevice *dev)
 217 {
 218         u8 status;
 219
 220         if (dm_i2c_read(dev, STUSB1600_CC_CONNECTION_STATUS, &status, 1))
 221                 return 0;
 222
 223         return status & STUSB1600_CC_ATTACH;
 224 }
 225
 226 #include <usb/dwc2_udc.h>
 227 int g_dnl_board_usb_cable_connected(void)
 228 {
 229         struct udevice *stusb1600;
 230         struct udevice *dwc2_udc_otg;
 231         int ret;
 232
 233         if (!stusb1600_init(&stusb1600))
 234                 return stusb1600_cable_connected(stusb1600);
 235
 236         ret = uclass_get_device_by_driver(UCLASS_USB_GADGET_GENERIC,
 237                                           DM_GET_DRIVER(dwc2_udc_otg),
 238                                           &dwc2_udc_otg);
 239         if (!ret)
 240                 debug("dwc2_udc_otg init failed\n");
 241
 242         return dwc2_udc_B_session_valid(dwc2_udc_otg);
 243 }
 244
 245 #define STM32MP1_G_DNL_DFU_PRODUCT_NUM 0xdf11
 246 #define STM32MP1_G_DNL_FASTBOOT_PRODUCT_NUM 0x0afb
 247
 248 int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name)
 249 {
 250         if (!strcmp(name, "usb_dnl_dfu"))
 251                 put_unaligned(STM32MP1_G_DNL_DFU_PRODUCT_NUM, &dev->idProduct);
 252         else if (!strcmp(name, "usb_dnl_fastboot"))
 253                 put_unaligned(STM32MP1_G_DNL_FASTBOOT_PRODUCT_NUM,
 254                               &dev->idProduct);
 255         else
 256                 put_unaligned(CONFIG_USB_GADGET_PRODUCT_NUM, &dev->idProduct);
 257
 258         return 0;
 259 }
 260
 261 #endif /* CONFIG_USB_GADGET */
 262
 263 static int get_led(struct udevice **dev, char *led_string)
 264 {
 265         char *led_name;
 266         int ret;
 267
 268         led_name = fdtdec_get_config_string(gd->fdt_blob, led_string);
 269         if (!led_name) {
 270                 pr_debug("%s: could not find %s config string\n",
 271                          __func__, led_string);
 272                 return -ENOENT;
 273         }
 274         ret = led_get_by_label(led_name, dev);
 275         if (ret) {
 276                 debug("%s: get=%d\n", __func__, ret);
 277                 return ret;
 278         }
 279
 280         return 0;
 281 }
 282
 283 static int setup_led(enum led_state_t cmd)
 284 {
 285         struct udevice *dev;
 286         int ret;
 287
 288         if (!CONFIG_IS_ENABLED(LED))
 289                 return 0;
 290
 291         ret = get_led(&dev, "u-boot,boot-led");
 292         if (ret)
 293                 return ret;
 294
 295         ret = led_set_state(dev, cmd);
 296         return ret;
 297 }
 298
 299 static void __maybe_unused led_error_blink(u32 nb_blink)
 300 {
 301         int ret;
 302         struct udevice *led;
 303         u32 i;
 304
 305         if (!nb_blink)
 306                 return;
 307
 308         if (CONFIG_IS_ENABLED(LED)) {
 309                 ret = get_led(&led, "u-boot,error-led");
 310                 if (!ret) {
 311                         /* make u-boot,error-led blinking */
 312                         /* if U32_MAX and 125ms interval, for 17.02 years */
 313                         for (i = 0; i < 2 * nb_blink; i++) {
 314                                 led_set_state(led, LEDST_TOGGLE);
 315                                 mdelay(125);
 316                                 WATCHDOG_RESET();
 317                         }
 318                         led_set_state(led, LEDST_ON);
 319                 }
 320         }
 321
 322         /* infinite: the boot process must be stopped */
 323         if (nb_blink == U32_MAX)
 324                 hang();
 325 }
 326
 327 #ifdef CONFIG_ADC
 328 static int board_check_usb_power(void)
 329 {
 330         struct ofnode_phandle_args adc_args;
 331         struct udevice *adc;
 332         ofnode node;
 333         unsigned int raw;
 334         int max_uV = 0;
 335         int min_uV = USB_START_HIGH_THRESHOLD_UV;
 336         int ret, uV, adc_count;
 337         u32 nb_blink;
 338         u8 i;
 339         node = ofnode_path("/config");
 340         if (!ofnode_valid(node)) {
 341                 debug("%s: no /config node?\n", __func__);
 342                 return -ENOENT;
 343         }
 344
 345         /*
 346          * Retrieve the ADC channels devices and get measurement
 347          * for each of them
 348          */
 349         adc_count = ofnode_count_phandle_with_args(node, "st,adc_usb_pd",
 350                                                    "#io-channel-cells");
 351         if (adc_count < 0) {
 352                 if (adc_count == -ENOENT)
 353                         return 0;
 354
 355                 pr_err("%s: can't find adc channel (%d)\n", __func__,
 356                        adc_count);
 357
 358                 return adc_count;
 359         }
 360
 361         for (i = 0; i < adc_count; i++) {
 362                 if (ofnode_parse_phandle_with_args(node, "st,adc_usb_pd",
 363                                                    "#io-channel-cells", 0, i,
 364                                                    &adc_args)) {
 365                         pr_debug("%s: can't find /config/st,adc_usb_pd\n",
 366                                  __func__);
 367                         return 0;
 368                 }
 369
 370                 ret = uclass_get_device_by_ofnode(UCLASS_ADC, adc_args.node,
 371                                                   &adc);
 372
 373                 if (ret) {
 374                         pr_err("%s: Can't get adc device(%d)\n", __func__,
 375                                ret);
 376                         return ret;
 377                 }
 378
 379                 ret = adc_channel_single_shot(adc->name, adc_args.args[0],
 380                                               &raw);
 381                 if (ret) {
 382                         pr_err("%s: single shot failed for %s[%d]!\n",
 383                                __func__, adc->name, adc_args.args[0]);
 384                         return ret;
 385                 }
 386                 /* Convert to uV */
 387                 if (!adc_raw_to_uV(adc, raw, &uV)) {
 388                         if (uV > max_uV)
 389                                 max_uV = uV;
 390                         if (uV < min_uV)
 391                                 min_uV = uV;
 392                         pr_debug("%s: %s[%02d] = %u, %d uV\n", __func__,
 393                                  adc->name, adc_args.args[0], raw, uV);
 394                 } else {
 395                         pr_err("%s: Can't get uV value for %s[%d]\n",
 396                                __func__, adc->name, adc_args.args[0]);
 397                 }
 398         }
 399
 400         /*
 401          * If highest value is inside 1.23 Volts and 2.10 Volts, that means
 402          * board is plugged on an USB-C 3A power supply and boot process can
 403          * continue.
 404          */
 405         if (max_uV > USB_START_LOW_THRESHOLD_UV &&
 406             max_uV <= USB_START_HIGH_THRESHOLD_UV &&
 407             min_uV <= USB_LOW_THRESHOLD_UV)
 408                 return 0;
 409
 410         pr_err("****************************************************\n");
 411
 412         /*
 413          * If highest and lowest value are either both below
 414          * USB_LOW_THRESHOLD_UV or both above USB_LOW_THRESHOLD_UV, that
 415          * means USB TYPE-C is in unattached mode, this is an issue, make
 416          * u-boot,error-led blinking and stop boot process.
 417          */
 418         if ((max_uV > USB_LOW_THRESHOLD_UV &&
 419              min_uV > USB_LOW_THRESHOLD_UV) ||
 420              (max_uV <= USB_LOW_THRESHOLD_UV &&
 421              min_uV <= USB_LOW_THRESHOLD_UV)) {
 422                 pr_err("* ERROR USB TYPE-C connection in unattached mode   *\n");
 423                 pr_err("* Check that USB TYPE-C cable is correctly plugged *\n");
 424                 /* with 125ms interval, led will blink for 17.02 years ....*/
 425                 nb_blink = U32_MAX;
 426         }
 427
 428         if (max_uV > USB_LOW_THRESHOLD_UV &&
 429             max_uV <= USB_WARNING_LOW_THRESHOLD_UV &&
 430             min_uV <= USB_LOW_THRESHOLD_UV) {
 431                 pr_err("*        WARNING 500mA power supply detected       *\n");
 432                 nb_blink = 2;
 433         }
 434
 435         if (max_uV > USB_WARNING_LOW_THRESHOLD_UV &&
 436             max_uV <= USB_START_LOW_THRESHOLD_UV &&
 437             min_uV <= USB_LOW_THRESHOLD_UV) {
 438                 pr_err("*       WARNING 1.5A power supply detected        *\n");
 439                 nb_blink = 3;
 440         }
 441
 442         /*
 443          * If highest value is above 2.15 Volts that means that the USB TypeC
 444          * supplies more than 3 Amp, this is not compliant with TypeC specification
 445          */
 446         if (max_uV > USB_START_HIGH_THRESHOLD_UV) {
 447                 pr_err("*      USB TYPE-C charger not compliant with       *\n");
 448                 pr_err("*                   specification                  *\n");
 449                 pr_err("****************************************************\n\n");
 450                 /* with 125ms interval, led will blink for 17.02 years ....*/
 451                 nb_blink = U32_MAX;
 452         } else {
 453                 pr_err("*     Current too low, use a 3A power supply!      *\n");
 454                 pr_err("****************************************************\n\n");
 455         }
 456
 457         led_error_blink(nb_blink);
 458
 459         return 0;
 460 }
 461 #endif /* CONFIG_ADC */
 462
 463 static void sysconf_init(void)
 464 {
 465 #ifndef CONFIG_TFABOOT
 466         u8 *syscfg;
 467 #ifdef CONFIG_DM_REGULATOR
 468         struct udevice *pwr_dev;
 469         struct udevice *pwr_reg;
 470         struct udevice *dev;
 471         u32 otp = 0;
 472 #endif
 473         int ret;
 474         u32 bootr, val;
 475
 476         syscfg = (u8 *)syscon_get_first_range(STM32MP_SYSCON_SYSCFG);
 477
 478         /* interconnect update : select master using the port 1 */
 479         /* LTDC = AXI_M9 */
 480         /* GPU  = AXI_M8 */
 481         /* today information is hardcoded in U-Boot */
 482         writel(BIT(9), syscfg + SYSCFG_ICNR);
 483
 484         /* disable Pull-Down for boot pin connected to VDD */
 485         bootr = readl(syscfg + SYSCFG_BOOTR);
 486         bootr &= ~(SYSCFG_BOOTR_BOOT_MASK << SYSCFG_BOOTR_BOOTPD_SHIFT);
 487         bootr |= (bootr & SYSCFG_BOOTR_BOOT_MASK) << SYSCFG_BOOTR_BOOTPD_SHIFT;
 488         writel(bootr, syscfg + SYSCFG_BOOTR);
 489
 490 #ifdef CONFIG_DM_REGULATOR
 491         /* High Speed Low Voltage Pad mode Enable for SPI, SDMMC, ETH, QSPI
 492          * and TRACE. Needed above ~50MHz and conditioned by AFMUX selection.
 493          * The customer will have to disable this for low frequencies
 494          * or if AFMUX is selected but the function not used, typically for
 495          * TRACE. Otherwise, impact on power consumption.
 496          *
 497          * WARNING:
 498          *   enabling High Speed mode while VDD>2.7V
 499          *   with the OTP product_below_2v5 (OTP 18, BIT 13)
 500          *   erroneously set to 1 can damage the IC!
 501          *   => U-Boot set the register only if VDD < 2.7V (in DT)
 502          *      but this value need to be consistent with board design
 503          */
 504         ret = uclass_get_device_by_driver(UCLASS_PMIC,
 505                                           DM_GET_DRIVER(stm32mp_pwr_pmic),
 506                                           &pwr_dev);
 507         if (!ret) {
 508                 ret = uclass_get_device_by_driver(UCLASS_MISC,
 509                                                   DM_GET_DRIVER(stm32mp_bsec),
 510                                                   &dev);
 511                 if (ret) {
 512                         pr_err("Can't find stm32mp_bsec driver\n");
 513                         return;
 514                 }
 515
 516                 ret = misc_read(dev, STM32_BSEC_SHADOW(18), &otp, 4);
 517                 if (ret > 0)
 518                         otp = otp & BIT(13);
 519
 520                 /* get VDD = vdd-supply */
 521                 ret = device_get_supply_regulator(pwr_dev, "vdd-supply",
 522                                                   &pwr_reg);
 523
 524                 /* check if VDD is Low Voltage */
 525                 if (!ret) {
 526                         if (regulator_get_value(pwr_reg) < 2700000) {
 527                                 writel(SYSCFG_IOCTRLSETR_HSLVEN_TRACE |
 528                                        SYSCFG_IOCTRLSETR_HSLVEN_QUADSPI |
 529                                        SYSCFG_IOCTRLSETR_HSLVEN_ETH |
 530                                        SYSCFG_IOCTRLSETR_HSLVEN_SDMMC |
 531                                        SYSCFG_IOCTRLSETR_HSLVEN_SPI,
 532                                        syscfg + SYSCFG_IOCTRLSETR);
 533
 534                                 if (!otp)
 535                                         pr_err("product_below_2v5=0: HSLVEN protected by HW\n");
 536                         } else {
 537                                 if (otp)
 538                                         pr_err("product_below_2v5=1: HSLVEN update is destructive, no update as VDD>2.7V\n");
 539                         }
 540                 } else {
 541                         debug("VDD unknown");
 542                 }
 543         }
 544 #endif
 545
 546         /* activate automatic I/O compensation
 547          * warning: need to ensure CSI enabled and ready in clock driver
 548          */
 549         writel(SYSCFG_CMPENSETR_MPU_EN, syscfg + SYSCFG_CMPENSETR);
 550
 551         /* poll until ready (1s timeout) */
 552         ret = readl_poll_timeout(syscfg + SYSCFG_CMPCR, val,
 553                                  val & SYSCFG_CMPCR_READY,
 554                                  1000000);
 555         if (ret) {
 556                 pr_err("SYSCFG: I/O compensation failed, timeout.\n");
 557                 led_error_blink(10);
 558         }
 559
 560         clrbits_le32(syscfg + SYSCFG_CMPCR, SYSCFG_CMPCR_SW_CTRL);
 561 #endif
 562 }
 563
 564 #ifdef CONFIG_DM_REGULATOR
 565 /* Fix to make I2C1 usable on DK2 for touchscreen usage in kernel */
 566 static int dk2_i2c1_fix(void)
 567 {
 568         ofnode node;
 569         struct gpio_desc hdmi, audio;
 570         int ret = 0;
 571
 572         node = ofnode_path("/soc/i2c@40012000/hdmi-transmitter@39");
 573         if (!ofnode_valid(node)) {
 574                 pr_debug("%s: no hdmi-transmitter@39 ?\n", __func__);
 575                 return -ENOENT;
 576         }
 577
 578         if (gpio_request_by_name_nodev(node, "reset-gpios", 0,
 579                                        &hdmi, GPIOD_IS_OUT)) {
 580                 pr_debug("%s: could not find reset-gpios\n",
 581                          __func__);
 582                 return -ENOENT;
 583         }
 584
 585         node = ofnode_path("/soc/i2c@40012000/cs42l51@4a");
 586         if (!ofnode_valid(node)) {
 587                 pr_debug("%s: no cs42l51@4a ?\n", __func__);
 588                 return -ENOENT;
 589         }
 590
 591         if (gpio_request_by_name_nodev(node, "reset-gpios", 0,
 592                                        &audio, GPIOD_IS_OUT)) {
 593                 pr_debug("%s: could not find reset-gpios\n",
 594                          __func__);
 595                 return -ENOENT;
 596         }
 597
 598         /* before power up, insure that HDMI and AUDIO IC is under reset */
 599         ret = dm_gpio_set_value(&hdmi, 1);
 600         if (ret) {
 601                 pr_err("%s: can't set_value for hdmi_nrst gpio", __func__);
 602                 goto error;
 603         }
 604         ret = dm_gpio_set_value(&audio, 1);
 605         if (ret) {
 606                 pr_err("%s: can't set_value for audio_nrst gpio", __func__);
 607                 goto error;
 608         }
 609
 610         /* power-up audio IC */
 611         regulator_autoset_by_name("v1v8_audio", NULL);
 612
 613         /* power-up HDMI IC */
 614         regulator_autoset_by_name("v1v2_hdmi", NULL);
 615         regulator_autoset_by_name("v3v3_hdmi", NULL);
 616
 617 error:
 618         return ret;
 619 }
 620
 621 static bool board_is_dk2(void)
 622 {
 623         if (CONFIG_IS_ENABLED(TARGET_ST_STM32MP15x) &&
 624             of_machine_is_compatible("st,stm32mp157c-dk2"))
 625                 return true;
 626
 627         return false;
 628 }
 629 #endif
 630
 631 static bool board_is_ev1(void)
 632 {
 633         if (CONFIG_IS_ENABLED(TARGET_ST_STM32MP15x) &&
 634             (of_machine_is_compatible("st,stm32mp157a-ev1") ||
 635              of_machine_is_compatible("st,stm32mp157c-ev1") ||
 636              of_machine_is_compatible("st,stm32mp157d-ev1") ||
 637              of_machine_is_compatible("st,stm32mp157f-ev1")))
 638                 return true;
 639
 640         return false;
 641 }
 642
 643 /* touchscreen driver: only used for pincontrol configuration */
 644 static const struct udevice_id goodix_ids[] = {
 645         { .compatible = "goodix,gt9147", },
 646         { }
 647 };
 648
 649 U_BOOT_DRIVER(goodix) = {
 650         .name           = "goodix",
 651         .id             = UCLASS_NOP,
 652         .of_match       = goodix_ids,
 653 };
 654
 655 static void board_ev1_init(void)
 656 {
 657         struct udevice *dev;
 658
 659         /* configure IRQ line on EV1 for touchscreen before LCD reset */
 660         uclass_get_device_by_driver(UCLASS_NOP, DM_GET_DRIVER(goodix), &dev);
 661 }
 662
 663 /* board dependent setup after realloc */
 664 int board_init(void)
 665 {
 666         struct udevice *dev;
 667
 668         /* address of boot parameters */
 669         gd->bd->bi_boot_params = STM32_DDR_BASE + 0x100;
 670
 671         /* probe all PINCTRL for hog */
 672         for (uclass_first_device(UCLASS_PINCTRL, &dev);
 673              dev;
 674              uclass_next_device(&dev)) {
 675                 pr_debug("probe pincontrol = %s\n", dev->name);
 676         }
 677
 678         board_key_check();
 679
 680         if (board_is_ev1())
 681                 board_ev1_init();
 682
 683 #ifdef CONFIG_DM_REGULATOR
 684         if (board_is_dk2())
 685                 dk2_i2c1_fix();
 686
 687         regulators_enable_boot_on(_DEBUG);
 688 #endif
 689
 690         sysconf_init();
 691
 692         if (CONFIG_IS_ENABLED(LED))
 693                 led_default_state();
 694
 695         setup_led(LEDST_ON);
 696
 697         return 0;
 698 }
 699
 700 int board_late_init(void)
 701 {
 702 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 703         const void *fdt_compat;
 704         int fdt_compat_len;
 705         int ret;
 706         u32 otp;
 707         struct udevice *dev;
 708         char buf[10];
 709
 710         fdt_compat = fdt_getprop(gd->fdt_blob, 0, "compatible",
 711                                  &fdt_compat_len);
 712         if (fdt_compat && fdt_compat_len) {
 713                 if (strncmp(fdt_compat, "st,", 3) != 0) {
 714                         env_set("board_name", fdt_compat);
 715                 } else {
 716                         char dtb_name[256];
 717                         int buf_len = sizeof(dtb_name);
 718
 719                         env_set("board_name", fdt_compat + 3);
 720
 721                         strncpy(dtb_name, fdt_compat + 3, buf_len);
 722                         buf_len -= strlen(fdt_compat + 3);
 723                         strncat(dtb_name, ".dtb", buf_len);
 724                         env_set("fdtfile", dtb_name);
 725                 }
 726         }
 727         ret = uclass_get_device_by_driver(UCLASS_MISC,
 728                                           DM_GET_DRIVER(stm32mp_bsec),
 729                                           &dev);
 730
 731         if (!ret)
 732                 ret = misc_read(dev, STM32_BSEC_SHADOW(BSEC_OTP_BOARD),
 733                                 &otp, sizeof(otp));
 734         if (!ret && otp) {
 735                 snprintf(buf, sizeof(buf), "0x%04x", otp >> 16);
 736                 env_set("board_id", buf);
 737
 738                 snprintf(buf, sizeof(buf), "0x%04x",
 739                          ((otp >> 8) & 0xF) - 1 + 0xA);
 740                 env_set("board_rev", buf);
 741         }
 742 #endif
 743
 744 #ifdef CONFIG_ADC
 745         /* for DK1/DK2 boards */
 746         board_check_usb_power();
 747 #endif /* CONFIG_ADC */
 748
 749         return 0;
 750 }
 751
 752 void board_quiesce_devices(void)
 753 {
 754         setup_led(LEDST_OFF);
 755 }
 756
 757 /* eth init function : weak called in eqos driver */
 758 int board_interface_eth_init(struct udevice *dev,
 759                              phy_interface_t interface_type)
 760 {
 761         u8 *syscfg;
 762         u32 value;
 763         bool eth_clk_sel_reg = false;
 764         bool eth_ref_clk_sel_reg = false;
 765
 766         /* Gigabit Ethernet 125MHz clock selection. */
 767         eth_clk_sel_reg = dev_read_bool(dev, "st,eth_clk_sel");
 768
 769         /* Ethernet 50Mhz RMII clock selection */
 770         eth_ref_clk_sel_reg =
 771                 dev_read_bool(dev, "st,eth_ref_clk_sel");
 772
 773         syscfg = (u8 *)syscon_get_first_range(STM32MP_SYSCON_SYSCFG);
 774
 775         if (!syscfg)
 776                 return -ENODEV;
 777
 778         switch (interface_type) {
 779         case PHY_INTERFACE_MODE_MII:
 780                 value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII |
 781                         SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
 782                 debug("%s: PHY_INTERFACE_MODE_MII\n", __func__);
 783                 break;
 784         case PHY_INTERFACE_MODE_GMII:
 785                 if (eth_clk_sel_reg)
 786                         value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII |
 787                                 SYSCFG_PMCSETR_ETH_CLK_SEL;
 788                 else
 789                         value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII;
 790                 debug("%s: PHY_INTERFACE_MODE_GMII\n", __func__);
 791                 break;
 792         case PHY_INTERFACE_MODE_RMII:
 793                 if (eth_ref_clk_sel_reg)
 794                         value = SYSCFG_PMCSETR_ETH_SEL_RMII |
 795                                 SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
 796                 else
 797                         value = SYSCFG_PMCSETR_ETH_SEL_RMII;
 798                 debug("%s: PHY_INTERFACE_MODE_RMII\n", __func__);
 799                 break;
 800         case PHY_INTERFACE_MODE_RGMII:
 801         case PHY_INTERFACE_MODE_RGMII_ID:
 802         case PHY_INTERFACE_MODE_RGMII_RXID:
 803         case PHY_INTERFACE_MODE_RGMII_TXID:
 804                 if (eth_clk_sel_reg)
 805                         value = SYSCFG_PMCSETR_ETH_SEL_RGMII |
 806                                 SYSCFG_PMCSETR_ETH_CLK_SEL;
 807                 else
 808                         value = SYSCFG_PMCSETR_ETH_SEL_RGMII;
 809                 debug("%s: PHY_INTERFACE_MODE_RGMII\n", __func__);
 810                 break;
 811         default:
 812                 debug("%s: Do not manage %d interface\n",
 813                       __func__, interface_type);
 814                 /* Do not manage others interfaces */
 815                 return -EINVAL;
 816         }
 817
 818         /* clear and set ETH configuration bits */
 819         writel(SYSCFG_PMCSETR_ETH_SEL_MASK | SYSCFG_PMCSETR_ETH_SELMII |
 820                SYSCFG_PMCSETR_ETH_REF_CLK_SEL | SYSCFG_PMCSETR_ETH_CLK_SEL,
 821                syscfg + SYSCFG_PMCCLRR);
 822         writel(value, syscfg + SYSCFG_PMCSETR);
 823
 824         return 0;
 825 }
 826
 827 enum env_location env_get_location(enum env_operation op, int prio)
 828 {
 829         u32 bootmode = get_bootmode();
 830
 831         if (prio)
 832                 return ENVL_UNKNOWN;
 833
 834         switch (bootmode & TAMP_BOOT_DEVICE_MASK) {
 835 #ifdef CONFIG_ENV_IS_IN_EXT4
 836         case BOOT_FLASH_SD:
 837         case BOOT_FLASH_EMMC:
 838                 return ENVL_EXT4;
 839 #endif
 840 #ifdef CONFIG_ENV_IS_IN_UBI
 841         case BOOT_FLASH_NAND:
 842         case BOOT_FLASH_SPINAND:
 843                 return ENVL_UBI;
 844 #endif
 845 #ifdef CONFIG_ENV_IS_IN_SPI_FLASH
 846         case BOOT_FLASH_NOR:
 847                 return ENVL_SPI_FLASH;
 848 #endif
 849         default:
 850                 return ENVL_NOWHERE;
 851         }
 852 }
 853
 854 #if defined(CONFIG_ENV_IS_IN_EXT4)
 855 const char *env_ext4_get_intf(void)
 856 {
 857         u32 bootmode = get_bootmode();
 858
 859         switch (bootmode & TAMP_BOOT_DEVICE_MASK) {
 860         case BOOT_FLASH_SD:
 861         case BOOT_FLASH_EMMC:
 862                 return "mmc";
 863         default:
 864                 return "";
 865         }
 866 }
 867
 868 const char *env_ext4_get_dev_part(void)
 869 {
 870         static char *const dev_part[] = {"0:auto", "1:auto", "2:auto"};
 871         u32 bootmode = get_bootmode();
 872
 873         return dev_part[(bootmode & TAMP_BOOT_INSTANCE_MASK) - 1];
 874 }
 875 #endif
 876
 877 #if defined(CONFIG_OF_BOARD_SETUP)
 878 int ft_board_setup(void *blob, bd_t *bd)
 879 {
 880 #ifdef CONFIG_FDT_FIXUP_PARTITIONS
 881         struct node_info nodes[] = {
 882                 { "st,stm32f469-qspi",          MTD_DEV_TYPE_NOR,  },
 883                 { "st,stm32f469-qspi",          MTD_DEV_TYPE_SPINAND},
 884                 { "st,stm32mp15-fmc2",          MTD_DEV_TYPE_NAND, },
 885         };
 886         fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
 887 #endif
 888
 889         return 0;
 890 }
 891 #endif
 892
 893 static void board_copro_image_process(ulong fw_image, size_t fw_size)
 894 {
 895         int ret, id = 0; /* Copro id fixed to 0 as only one coproc on mp1 */
 896
 897         if (!rproc_is_initialized())
 898                 if (rproc_init()) {
 899                         printf("Remote Processor %d initialization failed\n",
 900                                id);
 901                         return;
 902                 }
 903
 904         ret = rproc_load(id, fw_image, fw_size);
 905         printf("Load Remote Processor %d with data@addr=0x%08lx %u bytes:%s\n",
 906                id, fw_image, fw_size, ret ? " Failed!" : " Success!");
 907
 908         if (!ret)
 909                 rproc_start(id);
 910 }
 911
 912 U_BOOT_FIT_LOADABLE_HANDLER(IH_TYPE_COPRO, board_copro_image_process);