arch/arm/mach-k3/j721e_init.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * J721E: SoC specific initialization
   4  *
   5  * Copyright (C) 2018-2019 Texas Instruments Incorporated - http://www.ti.com/
   6  *      Lokesh Vutla <lokeshvutla@ti.com>
   7  */
   8
   9 #include <common.h>
  10 #include <spl.h>
  11 #include <asm/io.h>
  12 #include <asm/armv7_mpu.h>
  13 #include <asm/arch/hardware.h>
  14 #include <asm/arch/sysfw-loader.h>
  15 #include "common.h"
  16 #include <asm/arch/sys_proto.h>
  17 #include <linux/soc/ti/ti_sci_protocol.h>
  18 #include <dm.h>
  19 #include <dm/uclass-internal.h>
  20 #include <dm/pinctrl.h>
  21 #include <mmc.h>
  22 #include <remoteproc.h>
  23
  24 #ifdef CONFIG_SPL_BUILD
  25 #ifdef CONFIG_K3_LOAD_SYSFW
  26 #ifdef CONFIG_TI_SECURE_DEVICE
  27 struct fwl_data cbass_hc_cfg0_fwls[] = {
  28         { "PCIE0_CFG", 2560, 8 },
  29         { "PCIE1_CFG", 2561, 8 },
  30         { "USB3SS0_CORE", 2568, 4 },
  31         { "USB3SS1_CORE", 2570, 4 },
  32         { "EMMC8SS0_CFG", 2576, 4 },
  33         { "UFS_HCI0_CFG", 2580, 4 },
  34         { "SERDES0", 2584, 1 },
  35         { "SERDES1", 2585, 1 },
  36 }, cbass_hc0_fwls[] = {
  37         { "PCIE0_HP", 2528, 24 },
  38         { "PCIE0_LP", 2529, 24 },
  39         { "PCIE1_HP", 2530, 24 },
  40         { "PCIE1_LP", 2531, 24 },
  41 }, cbass_rc_cfg0_fwls[] = {
  42         { "EMMCSD4SS0_CFG", 2380, 4 },
  43 }, cbass_rc0_fwls[] = {
  44         { "GPMC0", 2310, 8 },
  45 }, infra_cbass0_fwls[] = {
  46         { "PLL_MMR0", 8, 26 },
  47         { "CTRL_MMR0", 9, 16 },
  48 }, mcu_cbass0_fwls[] = {
  49         { "MCU_R5FSS0_CORE0", 1024, 4 },
  50         { "MCU_R5FSS0_CORE0_CFG", 1025, 2 },
  51         { "MCU_R5FSS0_CORE1", 1028, 4 },
  52         { "MCU_FSS0_CFG", 1032, 12 },
  53         { "MCU_FSS0_S1", 1033, 8 },
  54         { "MCU_FSS0_S0", 1036, 8 },
  55         { "MCU_PSROM49152X32", 1048, 1 },
  56         { "MCU_MSRAM128KX64", 1050, 8 },
  57         { "MCU_CTRL_MMR0", 1200, 8 },
  58         { "MCU_PLL_MMR0", 1201, 3 },
  59         { "MCU_CPSW0", 1220, 2 },
  60 }, wkup_cbass0_fwls[] = {
  61         { "WKUP_CTRL_MMR0", 131, 16 },
  62 };
  63 #endif
  64 #endif
  65
  66 static void mmr_unlock(u32 base, u32 partition)
  67 {
  68         /* Translate the base address */
  69         phys_addr_t part_base = base + partition * CTRL_MMR0_PARTITION_SIZE;
  70
  71         /* Unlock the requested partition if locked using two-step sequence */
  72         writel(CTRLMMR_LOCK_KICK0_UNLOCK_VAL, part_base + CTRLMMR_LOCK_KICK0);
  73         writel(CTRLMMR_LOCK_KICK1_UNLOCK_VAL, part_base + CTRLMMR_LOCK_KICK1);
  74 }
  75
  76 static void ctrl_mmr_unlock(void)
  77 {
  78         /* Unlock all WKUP_CTRL_MMR0 module registers */
  79         mmr_unlock(WKUP_CTRL_MMR0_BASE, 0);
  80         mmr_unlock(WKUP_CTRL_MMR0_BASE, 1);
  81         mmr_unlock(WKUP_CTRL_MMR0_BASE, 2);
  82         mmr_unlock(WKUP_CTRL_MMR0_BASE, 3);
  83         mmr_unlock(WKUP_CTRL_MMR0_BASE, 4);
  84         mmr_unlock(WKUP_CTRL_MMR0_BASE, 6);
  85         mmr_unlock(WKUP_CTRL_MMR0_BASE, 7);
  86
  87         /* Unlock all MCU_CTRL_MMR0 module registers */
  88         mmr_unlock(MCU_CTRL_MMR0_BASE, 0);
  89         mmr_unlock(MCU_CTRL_MMR0_BASE, 1);
  90         mmr_unlock(MCU_CTRL_MMR0_BASE, 2);
  91         mmr_unlock(MCU_CTRL_MMR0_BASE, 3);
  92         mmr_unlock(MCU_CTRL_MMR0_BASE, 4);
  93
  94         /* Unlock all CTRL_MMR0 module registers */
  95         mmr_unlock(CTRL_MMR0_BASE, 0);
  96         mmr_unlock(CTRL_MMR0_BASE, 1);
  97         mmr_unlock(CTRL_MMR0_BASE, 2);
  98         mmr_unlock(CTRL_MMR0_BASE, 3);
  99         mmr_unlock(CTRL_MMR0_BASE, 4);
 100         mmr_unlock(CTRL_MMR0_BASE, 5);
 101         mmr_unlock(CTRL_MMR0_BASE, 6);
 102         mmr_unlock(CTRL_MMR0_BASE, 7);
 103 }
 104
 105 #if defined(CONFIG_K3_LOAD_SYSFW)
 106 void k3_mmc_stop_clock(void)
 107 {
 108         if (spl_boot_device() == BOOT_DEVICE_MMC1) {
 109                 struct mmc *mmc = find_mmc_device(0);
 110
 111                 if (!mmc)
 112                         return;
 113
 114                 mmc->saved_clock = mmc->clock;
 115                 mmc_set_clock(mmc, 0, true);
 116         }
 117 }
 118
 119 void k3_mmc_restart_clock(void)
 120 {
 121         if (spl_boot_device() == BOOT_DEVICE_MMC1) {
 122                 struct mmc *mmc = find_mmc_device(0);
 123
 124                 if (!mmc)
 125                         return;
 126
 127                 mmc_set_clock(mmc, mmc->saved_clock, false);
 128         }
 129 }
 130 #endif
 131
 132 /*
 133  * This uninitialized global variable would normal end up in the .bss section,
 134  * but the .bss is cleared between writing and reading this variable, so move
 135  * it to the .data section.
 136  */
 137 u32 bootindex __attribute__((section(".data")));
 138
 139 static void store_boot_index_from_rom(void)
 140 {
 141         bootindex = *(u32 *)(CONFIG_SYS_K3_BOOT_PARAM_TABLE_INDEX);
 142 }
 143
 144 void board_init_f(ulong dummy)
 145 {
 146 #if defined(CONFIG_K3_J721E_DDRSS) || defined(CONFIG_K3_LOAD_SYSFW)
 147         struct udevice *dev;
 148         int ret;
 149 #endif
 150         /*
 151          * Cannot delay this further as there is a chance that
 152          * K3_BOOT_PARAM_TABLE_INDEX can be over written by SPL MALLOC section.
 153          */
 154         store_boot_index_from_rom();
 155
 156         /* Make all control module registers accessible */
 157         ctrl_mmr_unlock();
 158
 159 #ifdef CONFIG_CPU_V7R
 160         disable_linefill_optimization();
 161         setup_k3_mpu_regions();
 162 #endif
 163
 164         /* Init DM early */
 165         spl_early_init();
 166
 167 #ifdef CONFIG_K3_LOAD_SYSFW
 168         /*
 169          * Process pinctrl for the serial0 a.k.a. MCU_UART0 module and continue
 170          * regardless of the result of pinctrl. Do this without probing the
 171          * device, but instead by searching the device that would request the
 172          * given sequence number if probed. The UART will be used by the system
 173          * firmware (SYSFW) image for various purposes and SYSFW depends on us
 174          * to initialize its pin settings.
 175          */
 176         ret = uclass_find_device_by_seq(UCLASS_SERIAL, 0, true, &dev);
 177         if (!ret)
 178                 pinctrl_select_state(dev, "default");
 179
 180         /*
 181          * Load, start up, and configure system controller firmware. Provide
 182          * the U-Boot console init function to the SYSFW post-PM configuration
 183          * callback hook, effectively switching on (or over) the console
 184          * output.
 185          */
 186         k3_sysfw_loader(k3_mmc_stop_clock, k3_mmc_restart_clock);
 187
 188         /* Prepare console output */
 189         preloader_console_init();
 190
 191         /* Disable ROM configured firewalls right after loading sysfw */
 192 #ifdef CONFIG_TI_SECURE_DEVICE
 193         remove_fwl_configs(cbass_hc_cfg0_fwls, ARRAY_SIZE(cbass_hc_cfg0_fwls));
 194         remove_fwl_configs(cbass_hc0_fwls, ARRAY_SIZE(cbass_hc0_fwls));
 195         remove_fwl_configs(cbass_rc_cfg0_fwls, ARRAY_SIZE(cbass_rc_cfg0_fwls));
 196         remove_fwl_configs(cbass_rc0_fwls, ARRAY_SIZE(cbass_rc0_fwls));
 197         remove_fwl_configs(infra_cbass0_fwls, ARRAY_SIZE(infra_cbass0_fwls));
 198         remove_fwl_configs(mcu_cbass0_fwls, ARRAY_SIZE(mcu_cbass0_fwls));
 199         remove_fwl_configs(wkup_cbass0_fwls, ARRAY_SIZE(wkup_cbass0_fwls));
 200 #endif
 201 #else
 202         /* Prepare console output */
 203         preloader_console_init();
 204 #endif
 205
 206         /* Output System Firmware version info */
 207         k3_sysfw_print_ver();
 208
 209         /* Perform EEPROM-based board detection */
 210         do_board_detect();
 211
 212 #if defined(CONFIG_CPU_V7R) && defined(CONFIG_K3_AVS0)
 213         ret = uclass_get_device_by_driver(UCLASS_MISC, DM_GET_DRIVER(k3_avs),
 214                                           &dev);
 215         if (ret)
 216                 printf("AVS init failed: %d\n", ret);
 217 #endif
 218
 219 #if defined(CONFIG_K3_J721E_DDRSS)
 220         ret = uclass_get_device(UCLASS_RAM, 0, &dev);
 221         if (ret)
 222                 panic("DRAM init failed: %d\n", ret);
 223 #endif
 224 }
 225
 226 u32 spl_mmc_boot_mode(const u32 boot_device)
 227 {
 228         switch (boot_device) {
 229         case BOOT_DEVICE_MMC1:
 230                 return MMCSD_MODE_EMMCBOOT;
 231         case BOOT_DEVICE_MMC2:
 232                 return MMCSD_MODE_FS;
 233         default:
 234                 return MMCSD_MODE_RAW;
 235         }
 236 }
 237
 238 static u32 __get_backup_bootmedia(u32 main_devstat)
 239 {
 240         u32 bkup_boot = (main_devstat & MAIN_DEVSTAT_BKUP_BOOTMODE_MASK) >>
 241                         MAIN_DEVSTAT_BKUP_BOOTMODE_SHIFT;
 242
 243         switch (bkup_boot) {
 244         case BACKUP_BOOT_DEVICE_USB:
 245                 return BOOT_DEVICE_DFU;
 246         case BACKUP_BOOT_DEVICE_UART:
 247                 return BOOT_DEVICE_UART;
 248         case BACKUP_BOOT_DEVICE_ETHERNET:
 249                 return BOOT_DEVICE_ETHERNET;
 250         case BACKUP_BOOT_DEVICE_MMC2:
 251         {
 252                 u32 port = (main_devstat & MAIN_DEVSTAT_BKUP_MMC_PORT_MASK) >>
 253                             MAIN_DEVSTAT_BKUP_MMC_PORT_SHIFT;
 254                 if (port == 0x0)
 255                         return BOOT_DEVICE_MMC1;
 256                 return BOOT_DEVICE_MMC2;
 257         }
 258         case BACKUP_BOOT_DEVICE_SPI:
 259                 return BOOT_DEVICE_SPI;
 260         case BACKUP_BOOT_DEVICE_I2C:
 261                 return BOOT_DEVICE_I2C;
 262         }
 263
 264         return BOOT_DEVICE_RAM;
 265 }
 266
 267 static u32 __get_primary_bootmedia(u32 main_devstat, u32 wkup_devstat)
 268 {
 269
 270         u32 bootmode = (wkup_devstat & WKUP_DEVSTAT_PRIMARY_BOOTMODE_MASK) >>
 271                         WKUP_DEVSTAT_PRIMARY_BOOTMODE_SHIFT;
 272
 273         bootmode |= (main_devstat & MAIN_DEVSTAT_BOOT_MODE_B_MASK) <<
 274                         BOOT_MODE_B_SHIFT;
 275
 276         if (bootmode == BOOT_DEVICE_OSPI || bootmode == BOOT_DEVICE_QSPI)
 277                 bootmode = BOOT_DEVICE_SPI;
 278
 279         if (bootmode == BOOT_DEVICE_MMC2) {
 280                 u32 port = (main_devstat &
 281                             MAIN_DEVSTAT_PRIM_BOOTMODE_MMC_PORT_MASK) >>
 282                            MAIN_DEVSTAT_PRIM_BOOTMODE_PORT_SHIFT;
 283                 if (port == 0x0)
 284                         bootmode = BOOT_DEVICE_MMC1;
 285         }
 286
 287         return bootmode;
 288 }
 289
 290 u32 spl_boot_device(void)
 291 {
 292         u32 wkup_devstat = readl(CTRLMMR_WKUP_DEVSTAT);
 293         u32 main_devstat;
 294
 295         if (wkup_devstat & WKUP_DEVSTAT_MCU_OMLY_MASK) {
 296                 printf("ERROR: MCU only boot is not yet supported\n");
 297                 return BOOT_DEVICE_RAM;
 298         }
 299
 300         /* MAIN CTRL MMR can only be read if MCU ONLY is 0 */
 301         main_devstat = readl(CTRLMMR_MAIN_DEVSTAT);
 302
 303         if (bootindex == K3_PRIMARY_BOOTMODE)
 304                 return __get_primary_bootmedia(main_devstat, wkup_devstat);
 305         else
 306                 return __get_backup_bootmedia(main_devstat);
 307 }
 308 #endif
 309
 310 #ifdef CONFIG_SYS_K3_SPL_ATF
 311
 312 #define J721E_DEV_MCU_RTI0                      262
 313 #define J721E_DEV_MCU_RTI1                      263
 314 #define J721E_DEV_MCU_ARMSS0_CPU0               250
 315 #define J721E_DEV_MCU_ARMSS0_CPU1               251
 316
 317 void release_resources_for_core_shutdown(void)
 318 {
 319         struct ti_sci_handle *ti_sci;
 320         struct ti_sci_dev_ops *dev_ops;
 321         struct ti_sci_proc_ops *proc_ops;
 322         int ret;
 323         u32 i;
 324
 325         const u32 put_device_ids[] = {
 326                 J721E_DEV_MCU_RTI0,
 327                 J721E_DEV_MCU_RTI1,
 328         };
 329
 330         ti_sci = get_ti_sci_handle();
 331         dev_ops = &ti_sci->ops.dev_ops;
 332         proc_ops = &ti_sci->ops.proc_ops;
 333
 334         /* Iterate through list of devices to put (shutdown) */
 335         for (i = 0; i < ARRAY_SIZE(put_device_ids); i++) {
 336                 u32 id = put_device_ids[i];
 337
 338                 ret = dev_ops->put_device(ti_sci, id);
 339                 if (ret)
 340                         panic("Failed to put device %u (%d)\n", id, ret);
 341         }
 342
 343         const u32 put_core_ids[] = {
 344                 J721E_DEV_MCU_ARMSS0_CPU1,
 345                 J721E_DEV_MCU_ARMSS0_CPU0,      /* Handle CPU0 after CPU1 */
 346         };
 347
 348         /* Iterate through list of cores to put (shutdown) */
 349         for (i = 0; i < ARRAY_SIZE(put_core_ids); i++) {
 350                 u32 id = put_core_ids[i];
 351
 352                 /*
 353                  * Queue up the core shutdown request. Note that this call
 354                  * needs to be followed up by an actual invocation of an WFE
 355                  * or WFI CPU instruction.
 356                  */
 357                 ret = proc_ops->proc_shutdown_no_wait(ti_sci, id);
 358                 if (ret)
 359                         panic("Failed sending core %u shutdown message (%d)\n",
 360                               id, ret);
 361         }
 362 }
 363 #endif
 364
 365 #ifdef CONFIG_SYS_K3_SPL_ATF
 366 void start_non_linux_remote_cores(void)
 367 {
 368         int size = 0, ret;
 369         u32 loadaddr = 0;
 370
 371         size = load_firmware("name_mainr5f0_0fw", "addr_mainr5f0_0load",
 372                              &loadaddr);
 373         if (size <= 0)
 374                 goto err_load;
 375
 376         /* assuming remoteproc 2 is aliased for the needed remotecore */
 377         ret = rproc_load(2, loadaddr, size);
 378         if (ret) {
 379                 printf("Firmware failed to start on rproc (%d)\n", ret);
 380                 goto err_load;
 381         }
 382
 383         ret = rproc_start(2);
 384         if (ret) {
 385                 printf("Firmware init failed on rproc (%d)\n", ret);
 386                 goto err_load;
 387         }
 388
 389         printf("Remoteproc 2 started successfully\n");
 390
 391         return;
 392
 393 err_load:
 394         rproc_reset(2);
 395 }
 396 #endif