uboot/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
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   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright 2014-2015 Freescale Semiconductor, Inc.
   4 */
   5
   6#include <common.h>
   7#include <efi_loader.h>
   8#include <linux/libfdt.h>
   9#include <fdt_support.h>
  10#include <phy.h>
  11#ifdef CONFIG_FSL_LSCH3
  12#include <asm/arch/fdt.h>
  13#endif
  14#ifdef CONFIG_FSL_ESDHC
  15#include <fsl_esdhc.h>
  16#endif
  17#ifdef CONFIG_SYS_DPAA_FMAN
  18#include <fsl_fman.h>
  19#endif
  20#ifdef CONFIG_MP
  21#include <asm/arch/mp.h>
  22#endif
  23#include <fsl_sec.h>
  24#include <asm/arch-fsl-layerscape/soc.h>
  25#ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT
  26#include <asm/armv8/sec_firmware.h>
  27#endif
  28#include <asm/arch/speed.h>
  29#include <fsl_qbman.h>
  30
  31int fdt_fixup_phy_connection(void *blob, int offset, phy_interface_t phyc)
  32{
  33        return fdt_setprop_string(blob, offset, "phy-connection-type",
  34                                         phy_string_for_interface(phyc));
  35}
  36
  37#ifdef CONFIG_MP
  38void ft_fixup_cpu(void *blob)
  39{
  40        int off;
  41        __maybe_unused u64 spin_tbl_addr = (u64)get_spin_tbl_addr();
  42        fdt32_t *reg;
  43        int addr_cells;
  44        u64 val, core_id;
  45        size_t *boot_code_size = &(__secondary_boot_code_size);
  46        u32 mask = cpu_pos_mask();
  47        int off_prev = -1;
  48
  49        off = fdt_path_offset(blob, "/cpus");
  50        if (off < 0) {
  51                puts("couldn't find /cpus node\n");
  52                return;
  53        }
  54
  55        fdt_support_default_count_cells(blob, off, &addr_cells, NULL);
  56
  57        off = fdt_node_offset_by_prop_value(blob, off_prev, "device_type",
  58                                            "cpu", 4);
  59        while (off != -FDT_ERR_NOTFOUND) {
  60                reg = (fdt32_t *)fdt_getprop(blob, off, "reg", 0);
  61                if (reg) {
  62                        core_id = fdt_read_number(reg, addr_cells);
  63                        if (!test_bit(id_to_core(core_id), &mask)) {
  64                                fdt_del_node(blob, off);
  65                                off = off_prev;
  66                        }
  67                }
  68                off_prev = off;
  69                off = fdt_node_offset_by_prop_value(blob, off_prev,
  70                                                    "device_type", "cpu", 4);
  71        }
  72
  73#if defined(CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT) && \
  74        defined(CONFIG_SEC_FIRMWARE_ARMV8_PSCI)
  75        int node;
  76        u32 psci_ver;
  77
  78        /* Check the psci version to determine if the psci is supported */
  79        psci_ver = sec_firmware_support_psci_version();
  80        if (psci_ver == 0xffffffff) {
  81                /* remove psci DT node */
  82                node = fdt_path_offset(blob, "/psci");
  83                if (node >= 0)
  84                        goto remove_psci_node;
  85
  86                node = fdt_node_offset_by_compatible(blob, -1, "arm,psci");
  87                if (node >= 0)
  88                        goto remove_psci_node;
  89
  90                node = fdt_node_offset_by_compatible(blob, -1, "arm,psci-0.2");
  91                if (node >= 0)
  92                        goto remove_psci_node;
  93
  94                node = fdt_node_offset_by_compatible(blob, -1, "arm,psci-1.0");
  95                if (node >= 0)
  96                        goto remove_psci_node;
  97
  98remove_psci_node:
  99                if (node >= 0)
 100                        fdt_del_node(blob, node);
 101        } else {
 102                return;
 103        }
 104#endif
 105        off = fdt_path_offset(blob, "/cpus");
 106        if (off < 0) {
 107                puts("couldn't find /cpus node\n");
 108                return;
 109        }
 110        fdt_support_default_count_cells(blob, off, &addr_cells, NULL);
 111
 112        off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
 113        while (off != -FDT_ERR_NOTFOUND) {
 114                reg = (fdt32_t *)fdt_getprop(blob, off, "reg", 0);
 115                if (reg) {
 116                        core_id = fdt_read_number(reg, addr_cells);
 117                        if (core_id  == 0 || (is_core_online(core_id))) {
 118                                val = spin_tbl_addr;
 119                                val += id_to_core(core_id) *
 120                                       SPIN_TABLE_ELEM_SIZE;
 121                                val = cpu_to_fdt64(val);
 122                                fdt_setprop_string(blob, off, "enable-method",
 123                                                   "spin-table");
 124                                fdt_setprop(blob, off, "cpu-release-addr",
 125                                            &val, sizeof(val));
 126                        } else {
 127                                debug("skipping offline core\n");
 128                        }
 129                } else {
 130                        puts("Warning: found cpu node without reg property\n");
 131                }
 132                off = fdt_node_offset_by_prop_value(blob, off, "device_type",
 133                                                    "cpu", 4);
 134        }
 135
 136        fdt_add_mem_rsv(blob, (uintptr_t)&secondary_boot_code,
 137                        *boot_code_size);
 138#if CONFIG_IS_ENABLED(EFI_LOADER)
 139        efi_add_memory_map((uintptr_t)&secondary_boot_code,
 140                           ALIGN(*boot_code_size, EFI_PAGE_SIZE) >> EFI_PAGE_SHIFT,
 141                           EFI_RESERVED_MEMORY_TYPE, false);
 142#endif
 143}
 144#endif
 145
 146void fsl_fdt_disable_usb(void *blob)
 147{
 148        int off;
 149        /*
 150         * SYSCLK is used as a reference clock for USB. When the USB
 151         * controller is used, SYSCLK must meet the additional requirement
 152         * of 100 MHz.
 153         */
 154        if (CONFIG_SYS_CLK_FREQ != 100000000) {
 155                off = fdt_node_offset_by_compatible(blob, -1, "snps,dwc3");
 156                while (off != -FDT_ERR_NOTFOUND) {
 157                        fdt_status_disabled(blob, off);
 158                        off = fdt_node_offset_by_compatible(blob, off,
 159                                                            "snps,dwc3");
 160                }
 161        }
 162}
 163
 164#ifdef CONFIG_HAS_FEATURE_GIC64K_ALIGN
 165static void fdt_fixup_gic(void *blob)
 166{
 167        int offset, err;
 168        u64 reg[8];
 169        struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 170        unsigned int val;
 171        struct ccsr_scfg __iomem *scfg = (void *)CONFIG_SYS_FSL_SCFG_ADDR;
 172        int align_64k = 0;
 173
 174        val = gur_in32(&gur->svr);
 175
 176        if (!IS_SVR_DEV(val, SVR_DEV(SVR_LS1043A))) {
 177                align_64k = 1;
 178        } else if (SVR_REV(val) != REV1_0) {
 179                val = scfg_in32(&scfg->gic_align) & (0x01 << GIC_ADDR_BIT);
 180                if (!val)
 181                        align_64k = 1;
 182        }
 183
 184        offset = fdt_subnode_offset(blob, 0, "interrupt-controller@1400000");
 185        if (offset < 0) {
 186                printf("WARNING: fdt_subnode_offset can't find node %s: %s\n",
 187                       "interrupt-controller@1400000", fdt_strerror(offset));
 188                return;
 189        }
 190
 191        /* Fixup gic node align with 64K */
 192        if (align_64k) {
 193                reg[0] = cpu_to_fdt64(GICD_BASE_64K);
 194                reg[1] = cpu_to_fdt64(GICD_SIZE_64K);
 195                reg[2] = cpu_to_fdt64(GICC_BASE_64K);
 196                reg[3] = cpu_to_fdt64(GICC_SIZE_64K);
 197                reg[4] = cpu_to_fdt64(GICH_BASE_64K);
 198                reg[5] = cpu_to_fdt64(GICH_SIZE_64K);
 199                reg[6] = cpu_to_fdt64(GICV_BASE_64K);
 200                reg[7] = cpu_to_fdt64(GICV_SIZE_64K);
 201        } else {
 202        /* Fixup gic node align with default */
 203                reg[0] = cpu_to_fdt64(GICD_BASE);
 204                reg[1] = cpu_to_fdt64(GICD_SIZE);
 205                reg[2] = cpu_to_fdt64(GICC_BASE);
 206                reg[3] = cpu_to_fdt64(GICC_SIZE);
 207                reg[4] = cpu_to_fdt64(GICH_BASE);
 208                reg[5] = cpu_to_fdt64(GICH_SIZE);
 209                reg[6] = cpu_to_fdt64(GICV_BASE);
 210                reg[7] = cpu_to_fdt64(GICV_SIZE);
 211        }
 212
 213        err = fdt_setprop(blob, offset, "reg", reg, sizeof(reg));
 214        if (err < 0) {
 215                printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
 216                       "reg", "interrupt-controller@1400000",
 217                       fdt_strerror(err));
 218                return;
 219        }
 220
 221        return;
 222}
 223#endif
 224
 225#ifdef CONFIG_HAS_FEATURE_ENHANCED_MSI
 226static int _fdt_fixup_msi_node(void *blob, const char *name,
 227                                  int irq_0, int irq_1, int rev)
 228{
 229        int err, offset, len;
 230        u32 tmp[4][3];
 231        void *p;
 232
 233        offset = fdt_path_offset(blob, name);
 234        if (offset < 0) {
 235                printf("WARNING: fdt_path_offset can't find path %s: %s\n",
 236                       name, fdt_strerror(offset));
 237                return 0;
 238        }
 239
 240        /*fixup the property of interrupts*/
 241
 242        tmp[0][0] = cpu_to_fdt32(0x0);
 243        tmp[0][1] = cpu_to_fdt32(irq_0);
 244        tmp[0][2] = cpu_to_fdt32(0x4);
 245
 246        if (rev > REV1_0) {
 247                tmp[1][0] = cpu_to_fdt32(0x0);
 248                tmp[1][1] = cpu_to_fdt32(irq_1);
 249                tmp[1][2] = cpu_to_fdt32(0x4);
 250                tmp[2][0] = cpu_to_fdt32(0x0);
 251                tmp[2][1] = cpu_to_fdt32(irq_1 + 1);
 252                tmp[2][2] = cpu_to_fdt32(0x4);
 253                tmp[3][0] = cpu_to_fdt32(0x0);
 254                tmp[3][1] = cpu_to_fdt32(irq_1 + 2);
 255                tmp[3][2] = cpu_to_fdt32(0x4);
 256                len = sizeof(tmp);
 257        } else {
 258                len = sizeof(tmp[0]);
 259        }
 260
 261        err = fdt_setprop(blob, offset, "interrupts", tmp, len);
 262        if (err < 0) {
 263                printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
 264                       "interrupts", name, fdt_strerror(err));
 265                return 0;
 266        }
 267
 268        /*fixup the property of reg*/
 269        p = (char *)fdt_getprop(blob, offset, "reg", &len);
 270        if (!p) {
 271                printf("WARNING: fdt_getprop can't get %s from node %s\n",
 272                       "reg", name);
 273                return 0;
 274        }
 275
 276        memcpy((char *)tmp, p, len);
 277
 278        if (rev > REV1_0)
 279                *((u32 *)tmp + 3) = cpu_to_fdt32(0x1000);
 280        else
 281                *((u32 *)tmp + 3) = cpu_to_fdt32(0x8);
 282
 283        err = fdt_setprop(blob, offset, "reg", tmp, len);
 284        if (err < 0) {
 285                printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
 286                       "reg", name, fdt_strerror(err));
 287                return 0;
 288        }
 289
 290        /*fixup the property of compatible*/
 291        if (rev > REV1_0)
 292                err = fdt_setprop_string(blob, offset, "compatible",
 293                                         "fsl,ls1043a-v1.1-msi");
 294        else
 295                err = fdt_setprop_string(blob, offset, "compatible",
 296                                         "fsl,ls1043a-msi");
 297        if (err < 0) {
 298                printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
 299                       "compatible", name, fdt_strerror(err));
 300                return 0;
 301        }
 302
 303        return 1;
 304}
 305
 306static int _fdt_fixup_pci_msi(void *blob, const char *name, int rev)
 307{
 308        int offset, len, err;
 309        void *p;
 310        int val;
 311        u32 tmp[4][8];
 312
 313        offset = fdt_path_offset(blob, name);
 314        if (offset < 0) {
 315                printf("WARNING: fdt_path_offset can't find path %s: %s\n",
 316                       name, fdt_strerror(offset));
 317                return 0;
 318        }
 319
 320        p = (char *)fdt_getprop(blob, offset, "interrupt-map", &len);
 321        if (!p || len != sizeof(tmp)) {
 322                printf("WARNING: fdt_getprop can't get %s from node %s\n",
 323                       "interrupt-map", name);
 324                return 0;
 325        }
 326
 327        memcpy((char *)tmp, p, len);
 328
 329        val = fdt32_to_cpu(tmp[0][6]);
 330        if (rev == REV1_0) {
 331                tmp[1][6] = cpu_to_fdt32(val + 1);
 332                tmp[2][6] = cpu_to_fdt32(val + 2);
 333                tmp[3][6] = cpu_to_fdt32(val + 3);
 334        } else {
 335                tmp[1][6] = cpu_to_fdt32(val);
 336                tmp[2][6] = cpu_to_fdt32(val);
 337                tmp[3][6] = cpu_to_fdt32(val);
 338        }
 339
 340        err = fdt_setprop(blob, offset, "interrupt-map", tmp, sizeof(tmp));
 341        if (err < 0) {
 342                printf("WARNING: fdt_setprop can't set %s from node %s: %s.\n",
 343                       "interrupt-map", name, fdt_strerror(err));
 344                return 0;
 345        }
 346        return 1;
 347}
 348
 349/* Fixup msi node for ls1043a rev1.1*/
 350
 351static void fdt_fixup_msi(void *blob)
 352{
 353        struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 354        unsigned int rev;
 355
 356        rev = gur_in32(&gur->svr);
 357
 358        if (!IS_SVR_DEV(rev, SVR_DEV(SVR_LS1043A)))
 359                return;
 360
 361        rev = SVR_REV(rev);
 362
 363        _fdt_fixup_msi_node(blob, "/soc/msi-controller1@1571000",
 364                            116, 111, rev);
 365        _fdt_fixup_msi_node(blob, "/soc/msi-controller2@1572000",
 366                            126, 121, rev);
 367        _fdt_fixup_msi_node(blob, "/soc/msi-controller3@1573000",
 368                            160, 155, rev);
 369
 370        _fdt_fixup_pci_msi(blob, "/soc/pcie@3400000", rev);
 371        _fdt_fixup_pci_msi(blob, "/soc/pcie@3500000", rev);
 372        _fdt_fixup_pci_msi(blob, "/soc/pcie@3600000", rev);
 373}
 374#endif
 375
 376#ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT
 377/* Remove JR node used by SEC firmware */
 378void fdt_fixup_remove_jr(void *blob)
 379{
 380        int jr_node, addr_cells, len;
 381        int crypto_node = fdt_path_offset(blob, "crypto");
 382        u64 jr_offset, used_jr;
 383        fdt32_t *reg;
 384
 385        used_jr = sec_firmware_used_jobring_offset();
 386        fdt_support_default_count_cells(blob, crypto_node, &addr_cells, NULL);
 387
 388        jr_node = fdt_node_offset_by_compatible(blob, crypto_node,
 389                                                "fsl,sec-v4.0-job-ring");
 390
 391        while (jr_node != -FDT_ERR_NOTFOUND) {
 392                reg = (fdt32_t *)fdt_getprop(blob, jr_node, "reg", &len);
 393                jr_offset = fdt_read_number(reg, addr_cells);
 394                if (jr_offset == used_jr) {
 395                        fdt_del_node(blob, jr_node);
 396                        break;
 397                }
 398                jr_node = fdt_node_offset_by_compatible(blob, jr_node,
 399                                                        "fsl,sec-v4.0-job-ring");
 400        }
 401}
 402#endif
 403
 404void ft_cpu_setup(void *blob, bd_t *bd)
 405{
 406        struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 407        unsigned int svr = gur_in32(&gur->svr);
 408
 409        /* delete crypto node if not on an E-processor */
 410        if (!IS_E_PROCESSOR(svr))
 411                fdt_fixup_crypto_node(blob, 0);
 412#if CONFIG_SYS_FSL_SEC_COMPAT >= 4
 413        else {
 414                ccsr_sec_t __iomem *sec;
 415
 416#ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT
 417                fdt_fixup_remove_jr(blob);
 418                fdt_fixup_kaslr(blob);
 419#endif
 420
 421                sec = (void __iomem *)CONFIG_SYS_FSL_SEC_ADDR;
 422                fdt_fixup_crypto_node(blob, sec_in32(&sec->secvid_ms));
 423        }
 424#endif
 425
 426#ifdef CONFIG_MP
 427        ft_fixup_cpu(blob);
 428#endif
 429
 430#ifdef CONFIG_SYS_NS16550
 431        do_fixup_by_compat_u32(blob, "fsl,ns16550",
 432                               "clock-frequency", CONFIG_SYS_NS16550_CLK, 1);
 433#endif
 434
 435        do_fixup_by_path_u32(blob, "/sysclk", "clock-frequency",
 436                             CONFIG_SYS_CLK_FREQ, 1);
 437
 438#ifdef CONFIG_PCI_LAYERSCAPE
 439        ft_pci_setup(blob, bd);
 440#endif
 441
 442#ifdef CONFIG_FSL_ESDHC
 443        fdt_fixup_esdhc(blob, bd);
 444#endif
 445
 446#ifdef CONFIG_SYS_DPAA_QBMAN
 447        fdt_fixup_bportals(blob);
 448        fdt_fixup_qportals(blob);
 449        do_fixup_by_compat_u32(blob, "fsl,qman",
 450                               "clock-frequency", get_qman_freq(), 1);
 451#endif
 452
 453#ifdef CONFIG_SYS_DPAA_FMAN
 454        fdt_fixup_fman_firmware(blob);
 455#endif
 456#ifndef CONFIG_ARCH_LS1012A
 457        fsl_fdt_disable_usb(blob);
 458#endif
 459#ifdef CONFIG_HAS_FEATURE_GIC64K_ALIGN
 460        fdt_fixup_gic(blob);
 461#endif
 462#ifdef CONFIG_HAS_FEATURE_ENHANCED_MSI
 463        fdt_fixup_msi(blob);
 464#endif
 465}
 466