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 <config.h>
   9 #include <clk.h>
  10 #include <dm.h>
  11 #include <environment.h>
  12 #include <g_dnl.h>
  13 #include <generic-phy.h>
  14 #include <i2c.h>
  15 #include <led.h>
  16 #include <misc.h>
  17 #include <mtd.h>
  18 #include <mtd_node.h>
  19 #include <phy.h>
  20 #include <reset.h>
  21 #include <syscon.h>
  22 #include <usb.h>
  23 #include <asm/io.h>
  24 #include <asm/gpio.h>
  25 #include <asm/arch/stm32.h>
  26 #include <asm/arch/sys_proto.h>
  27 #include <jffs2/load_kernel.h>
  28 #include <power/regulator.h>
  29 #include <usb/dwc2_udc.h>
  30
  31 /* SYSCFG registers */
  32 #define SYSCFG_BOOTR            0x00
  33 #define SYSCFG_PMCSETR          0x04
  34 #define SYSCFG_IOCTRLSETR       0x18
  35 #define SYSCFG_ICNR             0x1C
  36 #define SYSCFG_CMPCR            0x20
  37 #define SYSCFG_CMPENSETR        0x24
  38 #define SYSCFG_PMCCLRR          0x44
  39
  40 #define SYSCFG_BOOTR_BOOT_MASK          GENMASK(2, 0)
  41 #define SYSCFG_BOOTR_BOOTPD_SHIFT       4
  42
  43 #define SYSCFG_IOCTRLSETR_HSLVEN_TRACE          BIT(0)
  44 #define SYSCFG_IOCTRLSETR_HSLVEN_QUADSPI        BIT(1)
  45 #define SYSCFG_IOCTRLSETR_HSLVEN_ETH            BIT(2)
  46 #define SYSCFG_IOCTRLSETR_HSLVEN_SDMMC          BIT(3)
  47 #define SYSCFG_IOCTRLSETR_HSLVEN_SPI            BIT(4)
  48
  49 #define SYSCFG_CMPCR_SW_CTRL            BIT(1)
  50 #define SYSCFG_CMPCR_READY              BIT(8)
  51
  52 #define SYSCFG_CMPENSETR_MPU_EN         BIT(0)
  53
  54 #define SYSCFG_PMCSETR_ETH_CLK_SEL      BIT(16)
  55 #define SYSCFG_PMCSETR_ETH_REF_CLK_SEL  BIT(17)
  56
  57 #define SYSCFG_PMCSETR_ETH_SELMII       BIT(20)
  58
  59 #define SYSCFG_PMCSETR_ETH_SEL_MASK     GENMASK(23, 21)
  60 #define SYSCFG_PMCSETR_ETH_SEL_GMII_MII 0
  61 #define SYSCFG_PMCSETR_ETH_SEL_RGMII    BIT(21)
  62 #define SYSCFG_PMCSETR_ETH_SEL_RMII     BIT(23)
  63
  64 /*
  65  * Get a global data pointer
  66  */
  67 DECLARE_GLOBAL_DATA_PTR;
  68
  69 #define USB_LOW_THRESHOLD_UV            200000
  70 #define USB_WARNING_LOW_THRESHOLD_UV    660000
  71 #define USB_START_LOW_THRESHOLD_UV      1230000
  72 #define USB_START_HIGH_THRESHOLD_UV     2150000
  73
  74 int checkboard(void)
  75 {
  76         int ret;
  77         char *mode;
  78         u32 otp;
  79         struct udevice *dev;
  80         const char *fdt_compat;
  81         int fdt_compat_len;
  82
  83         if (IS_ENABLED(CONFIG_STM32MP1_OPTEE))
  84                 mode = "trusted with OP-TEE";
  85         else if (IS_ENABLED(CONFIG_STM32MP1_TRUSTED))
  86                 mode = "trusted";
  87         else
  88                 mode = "basic";
  89
  90         printf("Board: stm32mp1 in %s mode", mode);
  91         fdt_compat = fdt_getprop(gd->fdt_blob, 0, "compatible",
  92                                  &fdt_compat_len);
  93         if (fdt_compat && fdt_compat_len)
  94                 printf(" (%s)", fdt_compat);
  95         puts("\n");
  96
  97         ret = uclass_get_device_by_driver(UCLASS_MISC,
  98                                           DM_GET_DRIVER(stm32mp_bsec),
  99                                           &dev);
 100
 101         if (!ret)
 102                 ret = misc_read(dev, STM32_BSEC_SHADOW(BSEC_OTP_BOARD),
 103                                 &otp, sizeof(otp));
 104         if (!ret && otp) {
 105                 printf("Board: MB%04x Var%d Rev.%c-%02d\n",
 106                        otp >> 16,
 107                        (otp >> 12) & 0xF,
 108                        ((otp >> 8) & 0xF) - 1 + 'A',
 109                        otp & 0xF);
 110         }
 111
 112         return 0;
 113 }
 114
 115 static void board_key_check(void)
 116 {
 117 #if defined(CONFIG_FASTBOOT) || defined(CONFIG_CMD_STM32PROG)
 118         ofnode node;
 119         struct gpio_desc gpio;
 120         enum forced_boot_mode boot_mode = BOOT_NORMAL;
 121
 122         node = ofnode_path("/config");
 123         if (!ofnode_valid(node)) {
 124                 debug("%s: no /config node?\n", __func__);
 125                 return;
 126         }
 127 #ifdef CONFIG_FASTBOOT
 128         if (gpio_request_by_name_nodev(node, "st,fastboot-gpios", 0,
 129                                        &gpio, GPIOD_IS_IN)) {
 130                 debug("%s: could not find a /config/st,fastboot-gpios\n",
 131                       __func__);
 132         } else {
 133                 if (dm_gpio_get_value(&gpio)) {
 134                         puts("Fastboot key pressed, ");
 135                         boot_mode = BOOT_FASTBOOT;
 136                 }
 137
 138                 dm_gpio_free(NULL, &gpio);
 139         }
 140 #endif
 141 #ifdef CONFIG_CMD_STM32PROG
 142         if (gpio_request_by_name_nodev(node, "st,stm32prog-gpios", 0,
 143                                        &gpio, GPIOD_IS_IN)) {
 144                 debug("%s: could not find a /config/st,stm32prog-gpios\n",
 145                       __func__);
 146         } else {
 147                 if (dm_gpio_get_value(&gpio)) {
 148                         puts("STM32Programmer key pressed, ");
 149                         boot_mode = BOOT_STM32PROG;
 150                 }
 151                 dm_gpio_free(NULL, &gpio);
 152         }
 153 #endif
 154
 155         if (boot_mode != BOOT_NORMAL) {
 156                 puts("entering download mode...\n");
 157                 clrsetbits_le32(TAMP_BOOT_CONTEXT,
 158                                 TAMP_BOOT_FORCED_MASK,
 159                                 boot_mode);
 160         }
 161 #endif
 162 }
 163
 164 #if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG)
 165
 166 /* STMicroelectronics STUSB1600 Type-C controller */
 167 #define STUSB1600_CC_CONNECTION_STATUS          0x0E
 168
 169 /* STUSB1600_CC_CONNECTION_STATUS bitfields */
 170 #define STUSB1600_CC_ATTACH                     BIT(0)
 171
 172 static int stusb1600_init(struct udevice **dev_stusb1600)
 173 {
 174         ofnode node;
 175         struct udevice *dev, *bus;
 176         int ret;
 177         u32 chip_addr;
 178
 179         *dev_stusb1600 = NULL;
 180
 181         /* if node stusb1600 is present, means DK1 or DK2 board */
 182         node = ofnode_by_compatible(ofnode_null(), "st,stusb1600");
 183         if (!ofnode_valid(node))
 184                 return -ENODEV;
 185
 186         ret = ofnode_read_u32(node, "reg", &chip_addr);
 187         if (ret)
 188                 return -EINVAL;
 189
 190         ret = uclass_get_device_by_ofnode(UCLASS_I2C, ofnode_get_parent(node),
 191                                           &bus);
 192         if (ret) {
 193                 printf("bus for stusb1600 not found\n");
 194                 return -ENODEV;
 195         }
 196
 197         ret = dm_i2c_probe(bus, chip_addr, 0, &dev);
 198         if (!ret)
 199                 *dev_stusb1600 = dev;
 200
 201         return ret;
 202 }
 203
 204 static int stusb1600_cable_connected(struct udevice *dev)
 205 {
 206         u8 status;
 207
 208         if (dm_i2c_read(dev, STUSB1600_CC_CONNECTION_STATUS, &status, 1))
 209                 return 0;
 210
 211         return status & STUSB1600_CC_ATTACH;
 212 }
 213
 214 #include <usb/dwc2_udc.h>
 215 int g_dnl_board_usb_cable_connected(void)
 216 {
 217         struct udevice *stusb1600;
 218         struct udevice *dwc2_udc_otg;
 219         int ret;
 220
 221         if (!stusb1600_init(&stusb1600))
 222                 return stusb1600_cable_connected(stusb1600);
 223
 224         ret = uclass_get_device_by_driver(UCLASS_USB_GADGET_GENERIC,
 225                                           DM_GET_DRIVER(dwc2_udc_otg),
 226                                           &dwc2_udc_otg);
 227         if (!ret)
 228                 debug("dwc2_udc_otg init failed\n");
 229
 230         return dwc2_udc_B_session_valid(dwc2_udc_otg);
 231 }
 232 #endif /* CONFIG_USB_GADGET */
 233
 234 static int get_led(struct udevice **dev, char *led_string)
 235 {
 236         char *led_name;
 237         int ret;
 238
 239         led_name = fdtdec_get_config_string(gd->fdt_blob, led_string);
 240         if (!led_name) {
 241                 pr_debug("%s: could not find %s config string\n",
 242                          __func__, led_string);
 243                 return -ENOENT;
 244         }
 245         ret = led_get_by_label(led_name, dev);
 246         if (ret) {
 247                 debug("%s: get=%d\n", __func__, ret);
 248                 return ret;
 249         }
 250
 251         return 0;
 252 }
 253
 254 static int setup_led(enum led_state_t cmd)
 255 {
 256         struct udevice *dev;
 257         int ret;
 258
 259         ret = get_led(&dev, "u-boot,boot-led");
 260         if (ret)
 261                 return ret;
 262
 263         ret = led_set_state(dev, cmd);
 264         return ret;
 265 }
 266
 267 static int board_check_usb_power(void)
 268 {
 269         struct ofnode_phandle_args adc_args;
 270         struct udevice *adc;
 271         struct udevice *led;
 272         ofnode node;
 273         unsigned int raw;
 274         int max_uV = 0;
 275         int min_uV = USB_START_HIGH_THRESHOLD_UV;
 276         int ret, uV, adc_count;
 277         u32 nb_blink;
 278         u8 i;
 279         node = ofnode_path("/config");
 280         if (!ofnode_valid(node)) {
 281                 debug("%s: no /config node?\n", __func__);
 282                 return -ENOENT;
 283         }
 284
 285         /*
 286          * Retrieve the ADC channels devices and get measurement
 287          * for each of them
 288          */
 289         adc_count = ofnode_count_phandle_with_args(node, "st,adc_usb_pd",
 290                                                    "#io-channel-cells");
 291         if (adc_count < 0) {
 292                 if (adc_count == -ENOENT)
 293                         return 0;
 294
 295                 pr_err("%s: can't find adc channel (%d)\n", __func__,
 296                        adc_count);
 297
 298                 return adc_count;
 299         }
 300
 301         for (i = 0; i < adc_count; i++) {
 302                 if (ofnode_parse_phandle_with_args(node, "st,adc_usb_pd",
 303                                                    "#io-channel-cells", 0, i,
 304                                                    &adc_args)) {
 305                         pr_debug("%s: can't find /config/st,adc_usb_pd\n",
 306                                  __func__);
 307                         return 0;
 308                 }
 309
 310                 ret = uclass_get_device_by_ofnode(UCLASS_ADC, adc_args.node,
 311                                                   &adc);
 312
 313                 if (ret) {
 314                         pr_err("%s: Can't get adc device(%d)\n", __func__,
 315                                ret);
 316                         return ret;
 317                 }
 318
 319                 ret = adc_channel_single_shot(adc->name, adc_args.args[0],
 320                                               &raw);
 321                 if (ret) {
 322                         pr_err("%s: single shot failed for %s[%d]!\n",
 323                                __func__, adc->name, adc_args.args[0]);
 324                         return ret;
 325                 }
 326                 /* Convert to uV */
 327                 if (!adc_raw_to_uV(adc, raw, &uV)) {
 328                         if (uV > max_uV)
 329                                 max_uV = uV;
 330                         if (uV < min_uV)
 331                                 min_uV = uV;
 332                         pr_debug("%s: %s[%02d] = %u, %d uV\n", __func__,
 333                                  adc->name, adc_args.args[0], raw, uV);
 334                 } else {
 335                         pr_err("%s: Can't get uV value for %s[%d]\n",
 336                                __func__, adc->name, adc_args.args[0]);
 337                 }
 338         }
 339
 340         /*
 341          * If highest value is inside 1.23 Volts and 2.10 Volts, that means
 342          * board is plugged on an USB-C 3A power supply and boot process can
 343          * continue.
 344          */
 345         if (max_uV > USB_START_LOW_THRESHOLD_UV &&
 346             max_uV <= USB_START_HIGH_THRESHOLD_UV &&
 347             min_uV <= USB_LOW_THRESHOLD_UV)
 348                 return 0;
 349
 350         pr_err("****************************************************\n");
 351
 352         /*
 353          * If highest and lowest value are either both below
 354          * USB_LOW_THRESHOLD_UV or both above USB_LOW_THRESHOLD_UV, that
 355          * means USB TYPE-C is in unattached mode, this is an issue, make
 356          * u-boot,error-led blinking and stop boot process.
 357          */
 358         if ((max_uV > USB_LOW_THRESHOLD_UV &&
 359              min_uV > USB_LOW_THRESHOLD_UV) ||
 360              (max_uV <= USB_LOW_THRESHOLD_UV &&
 361              min_uV <= USB_LOW_THRESHOLD_UV)) {
 362                 pr_err("* ERROR USB TYPE-C connection in unattached mode   *\n");
 363                 pr_err("* Check that USB TYPE-C cable is correctly plugged *\n");
 364                 /* with 125ms interval, led will blink for 17.02 years ....*/
 365                 nb_blink = U32_MAX;
 366         }
 367
 368         if (max_uV > USB_LOW_THRESHOLD_UV &&
 369             max_uV <= USB_WARNING_LOW_THRESHOLD_UV &&
 370             min_uV <= USB_LOW_THRESHOLD_UV) {
 371                 pr_err("*        WARNING 500mA power supply detected       *\n");
 372                 nb_blink = 2;
 373         }
 374
 375         if (max_uV > USB_WARNING_LOW_THRESHOLD_UV &&
 376             max_uV <= USB_START_LOW_THRESHOLD_UV &&
 377             min_uV <= USB_LOW_THRESHOLD_UV) {
 378                 pr_err("*       WARNING 1.5mA power supply detected        *\n");
 379                 nb_blink = 3;
 380         }
 381
 382         /*
 383          * If highest value is above 2.15 Volts that means that the USB TypeC
 384          * supplies more than 3 Amp, this is not compliant with TypeC specification
 385          */
 386         if (max_uV > USB_START_HIGH_THRESHOLD_UV) {
 387                 pr_err("*      USB TYPE-C charger not compliant with       *\n");
 388                 pr_err("*                   specification                  *\n");
 389                 pr_err("****************************************************\n\n");
 390                 /* with 125ms interval, led will blink for 17.02 years ....*/
 391                 nb_blink = U32_MAX;
 392         } else {
 393                 pr_err("*     Current too low, use a 3A power supply!      *\n");
 394                 pr_err("****************************************************\n\n");
 395         }
 396
 397         ret = get_led(&led, "u-boot,error-led");
 398         if (ret) {
 399                 /* in unattached case, the boot process must be stopped */
 400                 if (nb_blink == U32_MAX)
 401                         hang();
 402                 return ret;
 403         }
 404
 405         /* make u-boot,error-led blinking */
 406         for (i = 0; i < nb_blink * 2; i++) {
 407                 led_set_state(led, LEDST_TOGGLE);
 408                 mdelay(125);
 409         }
 410         led_set_state(led, LEDST_ON);
 411
 412         return 0;
 413 }
 414
 415 static void sysconf_init(void)
 416 {
 417 #ifndef CONFIG_STM32MP1_TRUSTED
 418         u8 *syscfg;
 419 #ifdef CONFIG_DM_REGULATOR
 420         struct udevice *pwr_dev;
 421         struct udevice *pwr_reg;
 422         struct udevice *dev;
 423         int ret;
 424         u32 otp = 0;
 425 #endif
 426         u32 bootr;
 427
 428         syscfg = (u8 *)syscon_get_first_range(STM32MP_SYSCON_SYSCFG);
 429
 430         /* interconnect update : select master using the port 1 */
 431         /* LTDC = AXI_M9 */
 432         /* GPU  = AXI_M8 */
 433         /* today information is hardcoded in U-Boot */
 434         writel(BIT(9), syscfg + SYSCFG_ICNR);
 435
 436         /* disable Pull-Down for boot pin connected to VDD */
 437         bootr = readl(syscfg + SYSCFG_BOOTR);
 438         bootr &= ~(SYSCFG_BOOTR_BOOT_MASK << SYSCFG_BOOTR_BOOTPD_SHIFT);
 439         bootr |= (bootr & SYSCFG_BOOTR_BOOT_MASK) << SYSCFG_BOOTR_BOOTPD_SHIFT;
 440         writel(bootr, syscfg + SYSCFG_BOOTR);
 441
 442 #ifdef CONFIG_DM_REGULATOR
 443         /* High Speed Low Voltage Pad mode Enable for SPI, SDMMC, ETH, QSPI
 444          * and TRACE. Needed above ~50MHz and conditioned by AFMUX selection.
 445          * The customer will have to disable this for low frequencies
 446          * or if AFMUX is selected but the function not used, typically for
 447          * TRACE. Otherwise, impact on power consumption.
 448          *
 449          * WARNING:
 450          *   enabling High Speed mode while VDD>2.7V
 451          *   with the OTP product_below_2v5 (OTP 18, BIT 13)
 452          *   erroneously set to 1 can damage the IC!
 453          *   => U-Boot set the register only if VDD < 2.7V (in DT)
 454          *      but this value need to be consistent with board design
 455          */
 456         ret = syscon_get_by_driver_data(STM32MP_SYSCON_PWR, &pwr_dev);
 457         if (!ret) {
 458                 ret = uclass_get_device_by_driver(UCLASS_MISC,
 459                                                   DM_GET_DRIVER(stm32mp_bsec),
 460                                                   &dev);
 461                 if (ret) {
 462                         pr_err("Can't find stm32mp_bsec driver\n");
 463                         return;
 464                 }
 465
 466                 ret = misc_read(dev, STM32_BSEC_SHADOW(18), &otp, 4);
 467                 if (!ret)
 468                         otp = otp & BIT(13);
 469
 470                 /* get VDD = pwr-supply */
 471                 ret = device_get_supply_regulator(pwr_dev, "pwr-supply",
 472                                                   &pwr_reg);
 473
 474                 /* check if VDD is Low Voltage */
 475                 if (!ret) {
 476                         if (regulator_get_value(pwr_reg) < 2700000) {
 477                                 writel(SYSCFG_IOCTRLSETR_HSLVEN_TRACE |
 478                                        SYSCFG_IOCTRLSETR_HSLVEN_QUADSPI |
 479                                        SYSCFG_IOCTRLSETR_HSLVEN_ETH |
 480                                        SYSCFG_IOCTRLSETR_HSLVEN_SDMMC |
 481                                        SYSCFG_IOCTRLSETR_HSLVEN_SPI,
 482                                        syscfg + SYSCFG_IOCTRLSETR);
 483
 484                                 if (!otp)
 485                                         pr_err("product_below_2v5=0: HSLVEN protected by HW\n");
 486                         } else {
 487                                 if (otp)
 488                                         pr_err("product_below_2v5=1: HSLVEN update is destructive, no update as VDD>2.7V\n");
 489                         }
 490                 } else {
 491                         debug("VDD unknown");
 492                 }
 493         }
 494 #endif
 495
 496         /* activate automatic I/O compensation
 497          * warning: need to ensure CSI enabled and ready in clock driver
 498          */
 499         writel(SYSCFG_CMPENSETR_MPU_EN, syscfg + SYSCFG_CMPENSETR);
 500
 501         while (!(readl(syscfg + SYSCFG_CMPCR) & SYSCFG_CMPCR_READY))
 502                 ;
 503         clrbits_le32(syscfg + SYSCFG_CMPCR, SYSCFG_CMPCR_SW_CTRL);
 504 #endif
 505 }
 506
 507 /* board dependent setup after realloc */
 508 int board_init(void)
 509 {
 510         struct udevice *dev;
 511
 512         /* address of boot parameters */
 513         gd->bd->bi_boot_params = STM32_DDR_BASE + 0x100;
 514
 515         /* probe all PINCTRL for hog */
 516         for (uclass_first_device(UCLASS_PINCTRL, &dev);
 517              dev;
 518              uclass_next_device(&dev)) {
 519                 pr_debug("probe pincontrol = %s\n", dev->name);
 520         }
 521
 522         board_key_check();
 523
 524 #ifdef CONFIG_DM_REGULATOR
 525         regulators_enable_boot_on(_DEBUG);
 526 #endif
 527
 528         sysconf_init();
 529
 530         if (IS_ENABLED(CONFIG_LED))
 531                 led_default_state();
 532
 533         return 0;
 534 }
 535
 536 int board_late_init(void)
 537 {
 538 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 539         const void *fdt_compat;
 540         int fdt_compat_len;
 541
 542         fdt_compat = fdt_getprop(gd->fdt_blob, 0, "compatible",
 543                                  &fdt_compat_len);
 544         if (fdt_compat && fdt_compat_len) {
 545                 if (strncmp(fdt_compat, "st,", 3) != 0)
 546                         env_set("board_name", fdt_compat);
 547                 else
 548                         env_set("board_name", fdt_compat + 3);
 549         }
 550 #endif
 551
 552         /* for DK1/DK2 boards */
 553         board_check_usb_power();
 554
 555         return 0;
 556 }
 557
 558 void board_quiesce_devices(void)
 559 {
 560         setup_led(LEDST_OFF);
 561 }
 562
 563 /* board interface eth init */
 564 /* this is a weak define that we are overriding */
 565 int board_interface_eth_init(phy_interface_t interface_type,
 566                              bool eth_clk_sel_reg, bool eth_ref_clk_sel_reg)
 567 {
 568         u8 *syscfg;
 569         u32 value;
 570
 571         syscfg = (u8 *)syscon_get_first_range(STM32MP_SYSCON_SYSCFG);
 572
 573         if (!syscfg)
 574                 return -ENODEV;
 575
 576         switch (interface_type) {
 577         case PHY_INTERFACE_MODE_MII:
 578                 value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII |
 579                         SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
 580                 debug("%s: PHY_INTERFACE_MODE_MII\n", __func__);
 581                 break;
 582         case PHY_INTERFACE_MODE_GMII:
 583                 if (eth_clk_sel_reg)
 584                         value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII |
 585                                 SYSCFG_PMCSETR_ETH_CLK_SEL;
 586                 else
 587                         value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII;
 588                 debug("%s: PHY_INTERFACE_MODE_GMII\n", __func__);
 589                 break;
 590         case PHY_INTERFACE_MODE_RMII:
 591                 if (eth_ref_clk_sel_reg)
 592                         value = SYSCFG_PMCSETR_ETH_SEL_RMII |
 593                                 SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
 594                 else
 595                         value = SYSCFG_PMCSETR_ETH_SEL_RMII;
 596                 debug("%s: PHY_INTERFACE_MODE_RMII\n", __func__);
 597                 break;
 598         case PHY_INTERFACE_MODE_RGMII:
 599         case PHY_INTERFACE_MODE_RGMII_ID:
 600         case PHY_INTERFACE_MODE_RGMII_RXID:
 601         case PHY_INTERFACE_MODE_RGMII_TXID:
 602                 if (eth_clk_sel_reg)
 603                         value = SYSCFG_PMCSETR_ETH_SEL_RGMII |
 604                                 SYSCFG_PMCSETR_ETH_CLK_SEL;
 605                 else
 606                         value = SYSCFG_PMCSETR_ETH_SEL_RGMII;
 607                 debug("%s: PHY_INTERFACE_MODE_RGMII\n", __func__);
 608                 break;
 609         default:
 610                 debug("%s: Do not manage %d interface\n",
 611                       __func__, interface_type);
 612                 /* Do not manage others interfaces */
 613                 return -EINVAL;
 614         }
 615
 616         /* clear and set ETH configuration bits */
 617         writel(SYSCFG_PMCSETR_ETH_SEL_MASK | SYSCFG_PMCSETR_ETH_SELMII |
 618                SYSCFG_PMCSETR_ETH_REF_CLK_SEL | SYSCFG_PMCSETR_ETH_CLK_SEL,
 619                syscfg + SYSCFG_PMCCLRR);
 620         writel(value, syscfg + SYSCFG_PMCSETR);
 621
 622         return 0;
 623 }
 624
 625 enum env_location env_get_location(enum env_operation op, int prio)
 626 {
 627         u32 bootmode = get_bootmode();
 628
 629         if (prio)
 630                 return ENVL_UNKNOWN;
 631
 632         switch (bootmode & TAMP_BOOT_DEVICE_MASK) {
 633 #ifdef CONFIG_ENV_IS_IN_EXT4
 634         case BOOT_FLASH_SD:
 635         case BOOT_FLASH_EMMC:
 636                 return ENVL_EXT4;
 637 #endif
 638 #ifdef CONFIG_ENV_IS_IN_UBI
 639         case BOOT_FLASH_NAND:
 640                 return ENVL_UBI;
 641 #endif
 642 #ifdef CONFIG_ENV_IS_IN_SPI_FLASH
 643         case BOOT_FLASH_NOR:
 644                 return ENVL_SPI_FLASH;
 645 #endif
 646         default:
 647                 return ENVL_NOWHERE;
 648         }
 649 }
 650
 651 #if defined(CONFIG_ENV_IS_IN_EXT4)
 652 const char *env_ext4_get_intf(void)
 653 {
 654         u32 bootmode = get_bootmode();
 655
 656         switch (bootmode & TAMP_BOOT_DEVICE_MASK) {
 657         case BOOT_FLASH_SD:
 658         case BOOT_FLASH_EMMC:
 659                 return "mmc";
 660         default:
 661                 return "";
 662         }
 663 }
 664
 665 const char *env_ext4_get_dev_part(void)
 666 {
 667         static char *const dev_part[] = {"0:auto", "1:auto", "2:auto"};
 668         u32 bootmode = get_bootmode();
 669
 670         return dev_part[(bootmode & TAMP_BOOT_INSTANCE_MASK) - 1];
 671 }
 672 #endif
 673
 674 #ifdef CONFIG_SYS_MTDPARTS_RUNTIME
 675
 676 #define MTDPARTS_LEN            256
 677 #define MTDIDS_LEN              128
 678
 679 /**
 680  * The mtdparts_nand0 and mtdparts_nor0 variable tends to be long.
 681  * If we need to access it before the env is relocated, then we need
 682  * to use our own stack buffer. gd->env_buf will be too small.
 683  *
 684  * @param buf temporary buffer pointer MTDPARTS_LEN long
 685  * @return mtdparts variable string, NULL if not found
 686  */
 687 static const char *env_get_mtdparts(const char *str, char *buf)
 688 {
 689         if (gd->flags & GD_FLG_ENV_READY)
 690                 return env_get(str);
 691         if (env_get_f(str, buf, MTDPARTS_LEN) != -1)
 692                 return buf;
 693
 694         return NULL;
 695 }
 696
 697 /**
 698  * update the variables "mtdids" and "mtdparts" with content of mtdparts_<dev>
 699  */
 700 static void board_get_mtdparts(const char *dev,
 701                                char *mtdids,
 702                                char *mtdparts)
 703 {
 704         char env_name[32] = "mtdparts_";
 705         char tmp_mtdparts[MTDPARTS_LEN];
 706         const char *tmp;
 707
 708         /* name of env variable to read = mtdparts_<dev> */
 709         strcat(env_name, dev);
 710         tmp = env_get_mtdparts(env_name, tmp_mtdparts);
 711         if (tmp) {
 712                 /* mtdids: "<dev>=<dev>, ...." */
 713                 if (mtdids[0] != '\0')
 714                         strcat(mtdids, ",");
 715                 strcat(mtdids, dev);
 716                 strcat(mtdids, "=");
 717                 strcat(mtdids, dev);
 718
 719                 /* mtdparts: "mtdparts=<dev>:<mtdparts_<dev>>;..." */
 720                 if (mtdparts[0] != '\0')
 721                         strncat(mtdparts, ";", MTDPARTS_LEN);
 722                 else
 723                         strcat(mtdparts, "mtdparts=");
 724                 strncat(mtdparts, dev, MTDPARTS_LEN);
 725                 strncat(mtdparts, ":", MTDPARTS_LEN);
 726                 strncat(mtdparts, tmp, MTDPARTS_LEN);
 727         }
 728 }
 729
 730 void board_mtdparts_default(const char **mtdids, const char **mtdparts)
 731 {
 732         struct udevice *dev;
 733         static char parts[2 * MTDPARTS_LEN + 1];
 734         static char ids[MTDIDS_LEN + 1];
 735         static bool mtd_initialized;
 736
 737         if (mtd_initialized) {
 738                 *mtdids = ids;
 739                 *mtdparts = parts;
 740                 return;
 741         }
 742
 743         memset(parts, 0, sizeof(parts));
 744         memset(ids, 0, sizeof(ids));
 745
 746         if (!uclass_get_device(UCLASS_MTD, 0, &dev))
 747                 board_get_mtdparts("nand0", ids, parts);
 748
 749         if (!uclass_get_device(UCLASS_SPI_FLASH, 0, &dev))
 750                 board_get_mtdparts("nor0", ids, parts);
 751
 752         mtd_initialized = true;
 753         *mtdids = ids;
 754         *mtdparts = parts;
 755         debug("%s:mtdids=%s & mtdparts=%s\n", __func__, ids, parts);
 756 }
 757 #endif
 758
 759 #if defined(CONFIG_OF_BOARD_SETUP)
 760 int ft_board_setup(void *blob, bd_t *bd)
 761 {
 762 #ifdef CONFIG_FDT_FIXUP_PARTITIONS
 763         struct node_info nodes[] = {
 764                 { "st,stm32f469-qspi",          MTD_DEV_TYPE_NOR,  },
 765                 { "st,stm32mp15-fmc2",          MTD_DEV_TYPE_NAND, },
 766         };
 767         fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
 768 #endif
 769
 770         return 0;
 771 }
 772 #endif