LXR uboot/arch/arm/cpu/armv8/fsl-layerscape/cpu.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright 2017 NXP
   4 * Copyright 2014-2015 Freescale Semiconductor, Inc.
   5 */
   6
   7#include <common.h>
   8#include <fsl_ddr_sdram.h>
   9#include <asm/io.h>
  10#include <linux/errno.h>
  11#include <asm/system.h>
  12#include <fm_eth.h>
  13#include <asm/armv8/mmu.h>
  14#include <asm/io.h>
  15#include <asm/arch/fsl_serdes.h>
  16#include <asm/arch/soc.h>
  17#include <asm/arch/cpu.h>
  18#include <asm/arch/speed.h>
  19#include <fsl_immap.h>
  20#include <asm/arch/mp.h>
  21#include <efi_loader.h>
  22#include <fsl-mc/fsl_mc.h>
  23#ifdef CONFIG_FSL_ESDHC
  24#include <fsl_esdhc.h>
  25#endif
  26#include <asm/armv8/sec_firmware.h>
  27#ifdef CONFIG_SYS_FSL_DDR
  28#include <fsl_ddr.h>
  29#endif
  30#include <asm/arch/clock.h>
  31#include <hwconfig.h>
  32#include <fsl_qbman.h>
  33
  34DECLARE_GLOBAL_DATA_PTR;
  35
  36struct mm_region *mem_map = early_map;
  37
  38void cpu_name(char *name)
  39{
  40        struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
  41        unsigned int i, svr, ver;
  42
  43        svr = gur_in32(&gur->svr);
  44        ver = SVR_SOC_VER(svr);
  45
  46        for (i = 0; i < ARRAY_SIZE(cpu_type_list); i++)
  47                if ((cpu_type_list[i].soc_ver & SVR_WO_E) == ver) {
  48                        strcpy(name, cpu_type_list[i].name);
  49
  50                        if (IS_E_PROCESSOR(svr))
  51                                strcat(name, "E");
  52
  53                        sprintf(name + strlen(name), " Rev%d.%d",
  54                                SVR_MAJ(svr), SVR_MIN(svr));
  55                        break;
  56                }
  57
  58        if (i == ARRAY_SIZE(cpu_type_list))
  59                strcpy(name, "unknown");
  60}
  61
  62#ifndef CONFIG_SYS_DCACHE_OFF
  63/*
  64 * To start MMU before DDR is available, we create MMU table in SRAM.
  65 * The base address of SRAM is CONFIG_SYS_FSL_OCRAM_BASE. We use three
  66 * levels of translation tables here to cover 40-bit address space.
  67 * We use 4KB granule size, with 40 bits physical address, T0SZ=24
  68 * Address above EARLY_PGTABLE_SIZE (0x5000) is free for other purpose.
  69 * Note, the debug print in cache_v8.c is not usable for debugging
  70 * these early MMU tables because UART is not yet available.
  71 */
  72static inline void early_mmu_setup(void)
  73{
  74        unsigned int el = current_el();
  75
  76        /* global data is already setup, no allocation yet */
  77        gd->arch.tlb_addr = CONFIG_SYS_FSL_OCRAM_BASE;
  78        gd->arch.tlb_fillptr = gd->arch.tlb_addr;
  79        gd->arch.tlb_size = EARLY_PGTABLE_SIZE;
  80
  81        /* Create early page tables */
  82        setup_pgtables();
  83
  84        /* point TTBR to the new table */
  85        set_ttbr_tcr_mair(el, gd->arch.tlb_addr,
  86                          get_tcr(el, NULL, NULL) &
  87                          ~(TCR_ORGN_MASK | TCR_IRGN_MASK),
  88                          MEMORY_ATTRIBUTES);
  89
  90        set_sctlr(get_sctlr() | CR_M);
  91}
  92
  93static void fix_pcie_mmu_map(void)
  94{
  95#ifdef CONFIG_ARCH_LS2080A
  96        unsigned int i;
  97        u32 svr, ver;
  98        struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
  99
 100        svr = gur_in32(&gur->svr);
 101        ver = SVR_SOC_VER(svr);
 102
 103        /* Fix PCIE base and size for LS2088A */
 104        if ((ver == SVR_LS2088A) || (ver == SVR_LS2084A) ||
 105            (ver == SVR_LS2048A) || (ver == SVR_LS2044A) ||
 106            (ver == SVR_LS2081A) || (ver == SVR_LS2041A)) {
 107                for (i = 0; i < ARRAY_SIZE(final_map); i++) {
 108                        switch (final_map[i].phys) {
 109                        case CONFIG_SYS_PCIE1_PHYS_ADDR:
 110                                final_map[i].phys = 0x2000000000ULL;
 111                                final_map[i].virt = 0x2000000000ULL;
 112                                final_map[i].size = 0x800000000ULL;
 113                                break;
 114                        case CONFIG_SYS_PCIE2_PHYS_ADDR:
 115                                final_map[i].phys = 0x2800000000ULL;
 116                                final_map[i].virt = 0x2800000000ULL;
 117                                final_map[i].size = 0x800000000ULL;
 118                                break;
 119                        case CONFIG_SYS_PCIE3_PHYS_ADDR:
 120                                final_map[i].phys = 0x3000000000ULL;
 121                                final_map[i].virt = 0x3000000000ULL;
 122                                final_map[i].size = 0x800000000ULL;
 123                                break;
 124                        case CONFIG_SYS_PCIE4_PHYS_ADDR:
 125                                final_map[i].phys = 0x3800000000ULL;
 126                                final_map[i].virt = 0x3800000000ULL;
 127                                final_map[i].size = 0x800000000ULL;
 128                                break;
 129                        default:
 130                                break;
 131                        }
 132                }
 133        }
 134#endif
 135}
 136
 137/*
 138 * The final tables look similar to early tables, but different in detail.
 139 * These tables are in DRAM. Sub tables are added to enable cache for
 140 * QBMan and OCRAM.
 141 *
 142 * Put the MMU table in secure memory if gd->arch.secure_ram is valid.
 143 * OCRAM will be not used for this purpose so gd->arch.secure_ram can't be 0.
 144 */
 145static inline void final_mmu_setup(void)
 146{
 147        u64 tlb_addr_save = gd->arch.tlb_addr;
 148        unsigned int el = current_el();
 149        int index;
 150
 151        /* fix the final_map before filling in the block entries */
 152        fix_pcie_mmu_map();
 153
 154        mem_map = final_map;
 155
 156        /* Update mapping for DDR to actual size */
 157        for (index = 0; index < ARRAY_SIZE(final_map) - 2; index++) {
 158                /*
 159                 * Find the entry for DDR mapping and update the address and
 160                 * size. Zero-sized mapping will be skipped when creating MMU
 161                 * table.
 162                 */
 163                switch (final_map[index].virt) {
 164                case CONFIG_SYS_FSL_DRAM_BASE1:
 165                        final_map[index].virt = gd->bd->bi_dram[0].start;
 166                        final_map[index].phys = gd->bd->bi_dram[0].start;
 167                        final_map[index].size = gd->bd->bi_dram[0].size;
 168                        break;
 169#ifdef CONFIG_SYS_FSL_DRAM_BASE2
 170                case CONFIG_SYS_FSL_DRAM_BASE2:
 171#if (CONFIG_NR_DRAM_BANKS >= 2)
 172                        final_map[index].virt = gd->bd->bi_dram[1].start;
 173                        final_map[index].phys = gd->bd->bi_dram[1].start;
 174                        final_map[index].size = gd->bd->bi_dram[1].size;
 175#else
 176                        final_map[index].size = 0;
 177#endif
 178                break;
 179#endif
 180#ifdef CONFIG_SYS_FSL_DRAM_BASE3
 181                case CONFIG_SYS_FSL_DRAM_BASE3:
 182#if (CONFIG_NR_DRAM_BANKS >= 3)
 183                        final_map[index].virt = gd->bd->bi_dram[2].start;
 184                        final_map[index].phys = gd->bd->bi_dram[2].start;
 185                        final_map[index].size = gd->bd->bi_dram[2].size;
 186#else
 187                        final_map[index].size = 0;
 188#endif
 189                break;
 190#endif
 191                default:
 192                        break;
 193                }
 194        }
 195
 196#ifdef CONFIG_SYS_MEM_RESERVE_SECURE
 197        if (gd->arch.secure_ram & MEM_RESERVE_SECURE_MAINTAINED) {
 198                if (el == 3) {
 199                        /*
 200                         * Only use gd->arch.secure_ram if the address is
 201                         * recalculated. Align to 4KB for MMU table.
 202                         */
 203                        /* put page tables in secure ram */
 204                        index = ARRAY_SIZE(final_map) - 2;
 205                        gd->arch.tlb_addr = gd->arch.secure_ram & ~0xfff;
 206                        final_map[index].virt = gd->arch.secure_ram & ~0x3;
 207                        final_map[index].phys = final_map[index].virt;
 208                        final_map[index].size = CONFIG_SYS_MEM_RESERVE_SECURE;
 209                        final_map[index].attrs = PTE_BLOCK_OUTER_SHARE;
 210                        gd->arch.secure_ram |= MEM_RESERVE_SECURE_SECURED;
 211                        tlb_addr_save = gd->arch.tlb_addr;
 212                } else {
 213                        /* Use allocated (board_f.c) memory for TLB */
 214                        tlb_addr_save = gd->arch.tlb_allocated;
 215                        gd->arch.tlb_addr = tlb_addr_save;
 216                }
 217        }
 218#endif
 219
 220        /* Reset the fill ptr */
 221        gd->arch.tlb_fillptr = tlb_addr_save;
 222
 223        /* Create normal system page tables */
 224        setup_pgtables();
 225
 226        /* Create emergency page tables */
 227        gd->arch.tlb_addr = gd->arch.tlb_fillptr;
 228        gd->arch.tlb_emerg = gd->arch.tlb_addr;
 229        setup_pgtables();
 230        gd->arch.tlb_addr = tlb_addr_save;
 231
 232        /* Disable cache and MMU */
 233        dcache_disable();       /* TLBs are invalidated */
 234        invalidate_icache_all();
 235
 236        /* point TTBR to the new table */
 237        set_ttbr_tcr_mair(el, gd->arch.tlb_addr, get_tcr(el, NULL, NULL),
 238                          MEMORY_ATTRIBUTES);
 239
 240        set_sctlr(get_sctlr() | CR_M);
 241}
 242
 243u64 get_page_table_size(void)
 244{
 245        return 0x10000;
 246}
 247
 248int arch_cpu_init(void)
 249{
 250        /*
 251         * This function is called before U-Boot relocates itself to speed up
 252         * on system running. It is not necessary to run if performance is not
 253         * critical. Skip if MMU is already enabled by SPL or other means.
 254         */
 255        if (get_sctlr() & CR_M)
 256                return 0;
 257
 258        icache_enable();
 259        __asm_invalidate_dcache_all();
 260        __asm_invalidate_tlb_all();
 261        early_mmu_setup();
 262        set_sctlr(get_sctlr() | CR_C);
 263        return 0;
 264}
 265
 266void mmu_setup(void)
 267{
 268        final_mmu_setup();
 269}
 270
 271/*
 272 * This function is called from common/board_r.c.
 273 * It recreates MMU table in main memory.
 274 */
 275void enable_caches(void)
 276{
 277        mmu_setup();
 278        __asm_invalidate_tlb_all();
 279        icache_enable();
 280        dcache_enable();
 281}
 282#endif
 283
 284u32 initiator_type(u32 cluster, int init_id)
 285{
 286        struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 287        u32 idx = (cluster >> (init_id * 8)) & TP_CLUSTER_INIT_MASK;
 288        u32 type = 0;
 289
 290        type = gur_in32(&gur->tp_ityp[idx]);
 291        if (type & TP_ITYP_AV)
 292                return type;
 293
 294        return 0;
 295}
 296
 297u32 cpu_pos_mask(void)
 298{
 299        struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 300        int i = 0;
 301        u32 cluster, type, mask = 0;
 302
 303        do {
 304                int j;
 305
 306                cluster = gur_in32(&gur->tp_cluster[i].lower);
 307                for (j = 0; j < TP_INIT_PER_CLUSTER; j++) {
 308                        type = initiator_type(cluster, j);
 309                        if (type && (TP_ITYP_TYPE(type) == TP_ITYP_TYPE_ARM))
 310                                mask |= 1 << (i * TP_INIT_PER_CLUSTER + j);
 311                }
 312                i++;
 313        } while ((cluster & TP_CLUSTER_EOC) == 0x0);
 314
 315        return mask;
 316}
 317
 318u32 cpu_mask(void)
 319{
 320        struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 321        int i = 0, count = 0;
 322        u32 cluster, type, mask = 0;
 323
 324        do {
 325                int j;
 326
 327                cluster = gur_in32(&gur->tp_cluster[i].lower);
 328                for (j = 0; j < TP_INIT_PER_CLUSTER; j++) {
 329                        type = initiator_type(cluster, j);
 330                        if (type) {
 331                                if (TP_ITYP_TYPE(type) == TP_ITYP_TYPE_ARM)
 332                                        mask |= 1 << count;
 333                                count++;
 334                        }
 335                }
 336                i++;
 337        } while ((cluster & TP_CLUSTER_EOC) == 0x0);
 338
 339        return mask;
 340}
 341
 342/*
 343 * Return the number of cores on this SOC.
 344 */
 345int cpu_numcores(void)
 346{
 347        return hweight32(cpu_mask());
 348}
 349
 350int fsl_qoriq_core_to_cluster(unsigned int core)
 351{
 352        struct ccsr_gur __iomem *gur =
 353                (void __iomem *)(CONFIG_SYS_FSL_GUTS_ADDR);
 354        int i = 0, count = 0;
 355        u32 cluster;
 356
 357        do {
 358                int j;
 359
 360                cluster = gur_in32(&gur->tp_cluster[i].lower);
 361                for (j = 0; j < TP_INIT_PER_CLUSTER; j++) {
 362                        if (initiator_type(cluster, j)) {
 363                                if (count == core)
 364                                        return i;
 365                                count++;
 366                        }
 367                }
 368                i++;
 369        } while ((cluster & TP_CLUSTER_EOC) == 0x0);
 370
 371        return -1;      /* cannot identify the cluster */
 372}
 373
 374u32 fsl_qoriq_core_to_type(unsigned int core)
 375{
 376        struct ccsr_gur __iomem *gur =
 377                (void __iomem *)(CONFIG_SYS_FSL_GUTS_ADDR);
 378        int i = 0, count = 0;
 379        u32 cluster, type;
 380
 381        do {
 382                int j;
 383
 384                cluster = gur_in32(&gur->tp_cluster[i].lower);
 385                for (j = 0; j < TP_INIT_PER_CLUSTER; j++) {
 386                        type = initiator_type(cluster, j);
 387                        if (type) {
 388                                if (count == core)
 389                                        return type;
 390                                count++;
 391                        }
 392                }
 393                i++;
 394        } while ((cluster & TP_CLUSTER_EOC) == 0x0);
 395
 396        return -1;      /* cannot identify the cluster */
 397}
 398
 399#ifndef CONFIG_FSL_LSCH3
 400uint get_svr(void)
 401{
 402        struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 403
 404        return gur_in32(&gur->svr);
 405}
 406#endif
 407
 408#ifdef CONFIG_DISPLAY_CPUINFO
 409int print_cpuinfo(void)
 410{
 411        struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 412        struct sys_info sysinfo;
 413        char buf[32];
 414        unsigned int i, core;
 415        u32 type, rcw, svr = gur_in32(&gur->svr);
 416
 417        puts("SoC: ");
 418
 419        cpu_name(buf);
 420        printf(" %s (0x%x)\n", buf, svr);
 421        memset((u8 *)buf, 0x00, ARRAY_SIZE(buf));
 422        get_sys_info(&sysinfo);
 423        puts("Clock Configuration:");
 424        for_each_cpu(i, core, cpu_numcores(), cpu_mask()) {
 425                if (!(i % 3))
 426                        puts("\n       ");
 427                type = TP_ITYP_VER(fsl_qoriq_core_to_type(core));
 428                printf("CPU%d(%s):%-4s MHz  ", core,
 429                       type == TY_ITYP_VER_A7 ? "A7 " :
 430                       (type == TY_ITYP_VER_A53 ? "A53" :
 431                       (type == TY_ITYP_VER_A57 ? "A57" :
 432                       (type == TY_ITYP_VER_A72 ? "A72" : "   "))),
 433                       strmhz(buf, sysinfo.freq_processor[core]));
 434        }
 435        /* Display platform clock as Bus frequency. */
 436        printf("\n       Bus:      %-4s MHz  ",
 437               strmhz(buf, sysinfo.freq_systembus / CONFIG_SYS_FSL_PCLK_DIV));
 438        printf("DDR:      %-4s MT/s", strmhz(buf, sysinfo.freq_ddrbus));
 439#ifdef CONFIG_SYS_DPAA_FMAN
 440        printf("  FMAN:     %-4s MHz", strmhz(buf, sysinfo.freq_fman[0]));
 441#endif
 442#ifdef CONFIG_SYS_FSL_HAS_DP_DDR
 443        if (soc_has_dp_ddr()) {
 444                printf("     DP-DDR:   %-4s MT/s",
 445                       strmhz(buf, sysinfo.freq_ddrbus2));
 446        }
 447#endif
 448        puts("\n");
 449
 450        /*
 451         * Display the RCW, so that no one gets confused as to what RCW
 452         * we're actually using for this boot.
 453         */
 454        puts("Reset Configuration Word (RCW):");
 455        for (i = 0; i < ARRAY_SIZE(gur->rcwsr); i++) {
 456                rcw = gur_in32(&gur->rcwsr[i]);
 457                if ((i % 4) == 0)
 458                        printf("\n       %08x:", i * 4);
 459                printf(" %08x", rcw);
 460        }
 461        puts("\n");
 462
 463        return 0;
 464}
 465#endif
 466
 467#ifdef CONFIG_FSL_ESDHC
 468int cpu_mmc_init(bd_t *bis)
 469{
 470        return fsl_esdhc_mmc_init(bis);
 471}
 472#endif
 473
 474int cpu_eth_init(bd_t *bis)
 475{
 476        int error = 0;
 477
 478#if defined(CONFIG_FSL_MC_ENET) && !defined(CONFIG_SPL_BUILD)
 479        error = fsl_mc_ldpaa_init(bis);
 480#endif
 481#ifdef CONFIG_FMAN_ENET
 482        fm_standard_init(bis);
 483#endif
 484        return error;
 485}
 486
 487static inline int check_psci(void)
 488{
 489        unsigned int psci_ver;
 490
 491        psci_ver = sec_firmware_support_psci_version();
 492        if (psci_ver == PSCI_INVALID_VER)
 493                return 1;
 494
 495        return 0;
 496}
 497
 498static void config_core_prefetch(void)
 499{
 500        char *buf = NULL;
 501        char buffer[HWCONFIG_BUFFER_SIZE];
 502        const char *prefetch_arg = NULL;
 503        size_t arglen;
 504        unsigned int mask;
 505        struct pt_regs regs;
 506
 507        if (env_get_f("hwconfig", buffer, sizeof(buffer)) > 0)
 508                buf = buffer;
 509
 510        prefetch_arg = hwconfig_subarg_f("core_prefetch", "disable",
 511                                         &arglen, buf);
 512
 513        if (prefetch_arg) {
 514                mask = simple_strtoul(prefetch_arg, NULL, 0) & 0xff;
 515                if (mask & 0x1) {
 516                        printf("Core0 prefetch can't be disabled\n");
 517                        return;
 518                }
 519
 520#define SIP_PREFETCH_DISABLE_64 0xC200FF13
 521                regs.regs[0] = SIP_PREFETCH_DISABLE_64;
 522                regs.regs[1] = mask;
 523                smc_call(&regs);
 524
 525                if (regs.regs[0])
 526                        printf("Prefetch disable config failed for mask ");
 527                else
 528                        printf("Prefetch disable config passed for mask ");
 529                printf("0x%x\n", mask);
 530        }
 531}
 532
 533int arch_early_init_r(void)
 534{
 535#ifdef CONFIG_SYS_FSL_ERRATUM_A009635
 536        u32 svr_dev_id;
 537        /*
 538         * erratum A009635 is valid only for LS2080A SoC and
 539         * its personalitiesi
 540         */
 541        svr_dev_id = get_svr();
 542        if (IS_SVR_DEV(svr_dev_id, SVR_DEV(SVR_LS2080A)))
 543                erratum_a009635();
 544#endif
 545#if defined(CONFIG_SYS_FSL_ERRATUM_A009942) && defined(CONFIG_SYS_FSL_DDR)
 546        erratum_a009942_check_cpo();
 547#endif
 548        if (check_psci()) {
 549                debug("PSCI: PSCI does not exist.\n");
 550
 551                /* if PSCI does not exist, boot secondary cores here */
 552                if (fsl_layerscape_wake_seconday_cores())
 553                        printf("Did not wake secondary cores\n");
 554        }
 555
 556#ifdef CONFIG_SYS_FSL_HAS_RGMII
 557        fsl_rgmii_init();
 558#endif
 559
 560        config_core_prefetch();
 561
 562#ifdef CONFIG_SYS_HAS_SERDES
 563        fsl_serdes_init();
 564#endif
 565#ifdef CONFIG_FMAN_ENET
 566        fman_enet_init();
 567#endif
 568#ifdef CONFIG_SYS_DPAA_QBMAN
 569        setup_qbman_portals();
 570#endif
 571        return 0;
 572}
 573
 574int timer_init(void)
 575{
 576        u32 __iomem *cntcr = (u32 *)CONFIG_SYS_FSL_TIMER_ADDR;
 577#ifdef CONFIG_FSL_LSCH3
 578        u32 __iomem *cltbenr = (u32 *)CONFIG_SYS_FSL_PMU_CLTBENR;
 579#endif
 580#if defined(CONFIG_ARCH_LS2080A) || defined(CONFIG_ARCH_LS1088A)
 581        u32 __iomem *pctbenr = (u32 *)FSL_PMU_PCTBENR_OFFSET;
 582        u32 svr_dev_id;
 583#endif
 584#ifdef COUNTER_FREQUENCY_REAL
 585        unsigned long cntfrq = COUNTER_FREQUENCY_REAL;
 586
 587        /* Update with accurate clock frequency */
 588        if (current_el() == 3)
 589                asm volatile("msr cntfrq_el0, %0" : : "r" (cntfrq) : "memory");
 590#endif
 591
 592#ifdef CONFIG_FSL_LSCH3
 593        /* Enable timebase for all clusters.
 594         * It is safe to do so even some clusters are not enabled.
 595         */
 596        out_le32(cltbenr, 0xf);
 597#endif
 598
 599#if defined(CONFIG_ARCH_LS2080A) || defined(CONFIG_ARCH_LS1088A)
 600        /*
 601         * In certain Layerscape SoCs, the clock for each core's
 602         * has an enable bit in the PMU Physical Core Time Base Enable
 603         * Register (PCTBENR), which allows the watchdog to operate.
 604         */
 605        setbits_le32(pctbenr, 0xff);
 606        /*
 607         * For LS2080A SoC and its personalities, timer controller
 608         * offset is different
 609         */
 610        svr_dev_id = get_svr();
 611        if (IS_SVR_DEV(svr_dev_id, SVR_DEV(SVR_LS2080A)))
 612                cntcr = (u32 *)SYS_FSL_LS2080A_LS2085A_TIMER_ADDR;
 613
 614#endif
 615
 616        /* Enable clock for timer
 617         * This is a global setting.
 618         */
 619        out_le32(cntcr, 0x1);
 620
 621        return 0;
 622}
 623
 624__efi_runtime_data u32 __iomem *rstcr = (u32 *)CONFIG_SYS_FSL_RST_ADDR;
 625
 626void __efi_runtime reset_cpu(ulong addr)
 627{
 628        u32 val;
 629
 630        /* Raise RESET_REQ_B */
 631        val = scfg_in32(rstcr);
 632        val |= 0x02;
 633        scfg_out32(rstcr, val);
 634}
 635
 636#ifdef CONFIG_EFI_LOADER
 637
 638void __efi_runtime EFIAPI efi_reset_system(
 639                       enum efi_reset_type reset_type,
 640                       efi_status_t reset_status,
 641                       unsigned long data_size, void *reset_data)
 642{
 643        switch (reset_type) {
 644        case EFI_RESET_COLD:
 645        case EFI_RESET_WARM:
 646        case EFI_RESET_PLATFORM_SPECIFIC:
 647                reset_cpu(0);
 648                break;
 649        case EFI_RESET_SHUTDOWN:
 650                /* Nothing we can do */
 651                break;
 652        }
 653
 654        while (1) { }
 655}
 656
 657efi_status_t efi_reset_system_init(void)
 658{
 659        return efi_add_runtime_mmio(&rstcr, sizeof(*rstcr));
 660}
 661
 662#endif
 663
 664/*
 665 * Calculate reserved memory with given memory bank
 666 * Return aligned memory size on success
 667 * Return (ram_size + needed size) for failure
 668 */
 669phys_size_t board_reserve_ram_top(phys_size_t ram_size)
 670{
 671        phys_size_t ram_top = ram_size;
 672
 673#if defined(CONFIG_FSL_MC_ENET) && !defined(CONFIG_SPL_BUILD)
 674        ram_top = mc_get_dram_block_size();
 675        if (ram_top > ram_size)
 676                return ram_size + ram_top;
 677
 678        ram_top = ram_size - ram_top;
 679        /* The start address of MC reserved memory needs to be aligned. */
 680        ram_top &= ~(CONFIG_SYS_MC_RSV_MEM_ALIGN - 1);
 681#endif
 682
 683        return ram_size - ram_top;
 684}
 685
 686phys_size_t get_effective_memsize(void)
 687{
 688        phys_size_t ea_size, rem = 0;
 689
 690        /*
 691         * For ARMv8 SoCs, DDR memory is split into two or three regions. The
 692         * first region is 2GB space at 0x8000_0000. Secure memory needs to
 693         * allocated from first region. If the memory extends to  the second
 694         * region (or the third region if applicable), Management Complex (MC)
 695         * memory should be put into the highest region, i.e. the end of DDR
 696         * memory. CONFIG_MAX_MEM_MAPPED is set to the size of first region so
 697         * U-Boot doesn't relocate itself into higher address. Should DDR be
 698         * configured to skip the first region, this function needs to be
 699         * adjusted.
 700         */
 701        if (gd->ram_size > CONFIG_MAX_MEM_MAPPED) {
 702                ea_size = CONFIG_MAX_MEM_MAPPED;
 703                rem = gd->ram_size - ea_size;
 704        } else {
 705                ea_size = gd->ram_size;
 706        }
 707
 708#ifdef CONFIG_SYS_MEM_RESERVE_SECURE
 709        /* Check if we have enough space for secure memory */
 710        if (ea_size > CONFIG_SYS_MEM_RESERVE_SECURE)
 711                ea_size -= CONFIG_SYS_MEM_RESERVE_SECURE;
 712        else
 713                printf("Error: No enough space for secure memory.\n");
 714#endif
 715        /* Check if we have enough memory for MC */
 716        if (rem < board_reserve_ram_top(rem)) {
 717                /* Not enough memory in high region to reserve */
 718                if (ea_size > board_reserve_ram_top(ea_size))
 719                        ea_size -= board_reserve_ram_top(ea_size);
 720                else
 721                        printf("Error: No enough space for reserved memory.\n");
 722        }
 723
 724        return ea_size;
 725}
 726
 727int dram_init_banksize(void)
 728{
 729#ifdef CONFIG_SYS_DP_DDR_BASE_PHY
 730        phys_size_t dp_ddr_size;
 731#endif
 732
 733        /*
 734         * gd->ram_size has the total size of DDR memory, less reserved secure
 735         * memory. The DDR extends from low region to high region(s) presuming
 736         * no hole is created with DDR configuration. gd->arch.secure_ram tracks
 737         * the location of secure memory. gd->arch.resv_ram tracks the location
 738         * of reserved memory for Management Complex (MC). Because gd->ram_size
 739         * is reduced by this function if secure memory is reserved, checking
 740         * gd->arch.secure_ram should be done to avoid running it repeatedly.
 741         */
 742
 743#ifdef CONFIG_SYS_MEM_RESERVE_SECURE
 744        if (gd->arch.secure_ram & MEM_RESERVE_SECURE_MAINTAINED) {
 745                debug("No need to run again, skip %s\n", __func__);
 746
 747                return 0;
 748        }
 749#endif
 750
 751        gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
 752        if (gd->ram_size > CONFIG_SYS_DDR_BLOCK1_SIZE) {
 753                gd->bd->bi_dram[0].size = CONFIG_SYS_DDR_BLOCK1_SIZE;
 754                gd->bd->bi_dram[1].start = CONFIG_SYS_DDR_BLOCK2_BASE;
 755                gd->bd->bi_dram[1].size = gd->ram_size -
 756                                          CONFIG_SYS_DDR_BLOCK1_SIZE;
 757#ifdef CONFIG_SYS_DDR_BLOCK3_BASE
 758                if (gd->bi_dram[1].size > CONFIG_SYS_DDR_BLOCK2_SIZE) {
 759                        gd->bd->bi_dram[2].start = CONFIG_SYS_DDR_BLOCK3_BASE;
 760                        gd->bd->bi_dram[2].size = gd->bd->bi_dram[1].size -
 761                                                  CONFIG_SYS_DDR_BLOCK2_SIZE;
 762                        gd->bd->bi_dram[1].size = CONFIG_SYS_DDR_BLOCK2_SIZE;
 763                }
 764#endif
 765        } else {
 766                gd->bd->bi_dram[0].size = gd->ram_size;
 767        }
 768#ifdef CONFIG_SYS_MEM_RESERVE_SECURE
 769        if (gd->bd->bi_dram[0].size >
 770                                CONFIG_SYS_MEM_RESERVE_SECURE) {
 771                gd->bd->bi_dram[0].size -=
 772                                CONFIG_SYS_MEM_RESERVE_SECURE;
 773                gd->arch.secure_ram = gd->bd->bi_dram[0].start +
 774                                      gd->bd->bi_dram[0].size;
 775                gd->arch.secure_ram |= MEM_RESERVE_SECURE_MAINTAINED;
 776                gd->ram_size -= CONFIG_SYS_MEM_RESERVE_SECURE;
 777        }
 778#endif  /* CONFIG_SYS_MEM_RESERVE_SECURE */
 779
 780#if defined(CONFIG_FSL_MC_ENET) && !defined(CONFIG_SPL_BUILD)
 781        /* Assign memory for MC */
 782#ifdef CONFIG_SYS_DDR_BLOCK3_BASE
 783        if (gd->bd->bi_dram[2].size >=
 784            board_reserve_ram_top(gd->bd->bi_dram[2].size)) {
 785                gd->arch.resv_ram = gd->bd->bi_dram[2].start +
 786                            gd->bd->bi_dram[2].size -
 787                            board_reserve_ram_top(gd->bd->bi_dram[2].size);
 788        } else
 789#endif
 790        {
 791                if (gd->bd->bi_dram[1].size >=
 792                    board_reserve_ram_top(gd->bd->bi_dram[1].size)) {
 793                        gd->arch.resv_ram = gd->bd->bi_dram[1].start +
 794                                gd->bd->bi_dram[1].size -
 795                                board_reserve_ram_top(gd->bd->bi_dram[1].size);
 796                } else if (gd->bd->bi_dram[0].size >
 797                           board_reserve_ram_top(gd->bd->bi_dram[0].size)) {
 798                        gd->arch.resv_ram = gd->bd->bi_dram[0].start +
 799                                gd->bd->bi_dram[0].size -
 800                                board_reserve_ram_top(gd->bd->bi_dram[0].size);
 801                }
 802        }
 803#endif  /* CONFIG_FSL_MC_ENET */
 804
 805#ifdef CONFIG_SYS_DP_DDR_BASE_PHY
 806#ifdef CONFIG_SYS_DDR_BLOCK3_BASE
 807#error "This SoC shouldn't have DP DDR"
 808#endif
 809        if (soc_has_dp_ddr()) {
 810                /* initialize DP-DDR here */
 811                puts("DP-DDR:  ");
 812                /*
 813                 * DDR controller use 0 as the base address for binding.
 814                 * It is mapped to CONFIG_SYS_DP_DDR_BASE for core to access.
 815                 */
 816                dp_ddr_size = fsl_other_ddr_sdram(CONFIG_SYS_DP_DDR_BASE_PHY,
 817                                          CONFIG_DP_DDR_CTRL,
 818                                          CONFIG_DP_DDR_NUM_CTRLS,
 819                                          CONFIG_DP_DDR_DIMM_SLOTS_PER_CTLR,
 820                                          NULL, NULL, NULL);
 821                if (dp_ddr_size) {
 822                        gd->bd->bi_dram[2].start = CONFIG_SYS_DP_DDR_BASE;
 823                        gd->bd->bi_dram[2].size = dp_ddr_size;
 824                } else {
 825                        puts("Not detected");
 826                }
 827        }
 828#endif
 829
 830#ifdef CONFIG_SYS_MEM_RESERVE_SECURE
 831        debug("%s is called. gd->ram_size is reduced to %lu\n",
 832              __func__, (ulong)gd->ram_size);
 833#endif
 834
 835        return 0;
 836}
 837
 838#if defined(CONFIG_EFI_LOADER) && !defined(CONFIG_SPL_BUILD)
 839void efi_add_known_memory(void)
 840{
 841        int i;
 842        phys_addr_t ram_start, start;
 843        phys_size_t ram_size;
 844        u64 pages;
 845
 846        /* Add RAM */
 847        for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
 848#ifdef CONFIG_SYS_DP_DDR_BASE_PHY
 849#ifdef CONFIG_SYS_DDR_BLOCK3_BASE
 850#error "This SoC shouldn't have DP DDR"
 851#endif
 852                if (i == 2)
 853                        continue;       /* skip DP-DDR */
 854#endif
 855                ram_start = gd->bd->bi_dram[i].start;
 856                ram_size = gd->bd->bi_dram[i].size;
 857#ifdef CONFIG_RESV_RAM
 858                if (gd->arch.resv_ram >= ram_start &&
 859                    gd->arch.resv_ram < ram_start + ram_size)
 860                        ram_size = gd->arch.resv_ram - ram_start;
 861#endif
 862                start = (ram_start + EFI_PAGE_MASK) & ~EFI_PAGE_MASK;
 863                pages = (ram_size + EFI_PAGE_MASK) >> EFI_PAGE_SHIFT;
 864
 865                efi_add_memory_map(start, pages, EFI_CONVENTIONAL_MEMORY,
 866                                   false);
 867        }
 868}
 869#endif
 870
 871/*
 872 * Before DDR size is known, early MMU table have DDR mapped as device memory
 873 * to avoid speculative access. To relocate U-Boot to DDR, "normal memory"
 874 * needs to be set for these mappings.
 875 * If a special case configures DDR with holes in the mapping, the holes need
 876 * to be marked as invalid. This is not implemented in this function.
 877 */
 878void update_early_mmu_table(void)
 879{
 880        if (!gd->arch.tlb_addr)
 881                return;
 882
 883        if (gd->ram_size <= CONFIG_SYS_FSL_DRAM_SIZE1) {
 884                mmu_change_region_attr(
 885                                        CONFIG_SYS_SDRAM_BASE,
 886                                        gd->ram_size,
 887                                        PTE_BLOCK_MEMTYPE(MT_NORMAL)    |
 888                                        PTE_BLOCK_OUTER_SHARE           |
 889                                        PTE_BLOCK_NS                    |
 890                                        PTE_TYPE_VALID);
 891        } else {
 892                mmu_change_region_attr(
 893                                        CONFIG_SYS_SDRAM_BASE,
 894                                        CONFIG_SYS_DDR_BLOCK1_SIZE,
 895                                        PTE_BLOCK_MEMTYPE(MT_NORMAL)    |
 896                                        PTE_BLOCK_OUTER_SHARE           |
 897                                        PTE_BLOCK_NS                    |
 898                                        PTE_TYPE_VALID);
 899#ifdef CONFIG_SYS_DDR_BLOCK3_BASE
 900#ifndef CONFIG_SYS_DDR_BLOCK2_SIZE
 901#error "Missing CONFIG_SYS_DDR_BLOCK2_SIZE"
 902#endif
 903                if (gd->ram_size - CONFIG_SYS_DDR_BLOCK1_SIZE >
 904                    CONFIG_SYS_DDR_BLOCK2_SIZE) {
 905                        mmu_change_region_attr(
 906                                        CONFIG_SYS_DDR_BLOCK2_BASE,
 907                                        CONFIG_SYS_DDR_BLOCK2_SIZE,
 908                                        PTE_BLOCK_MEMTYPE(MT_NORMAL)    |
 909                                        PTE_BLOCK_OUTER_SHARE           |
 910                                        PTE_BLOCK_NS                    |
 911                                        PTE_TYPE_VALID);
 912                        mmu_change_region_attr(
 913                                        CONFIG_SYS_DDR_BLOCK3_BASE,
 914                                        gd->ram_size -
 915                                        CONFIG_SYS_DDR_BLOCK1_SIZE -
 916                                        CONFIG_SYS_DDR_BLOCK2_SIZE,
 917                                        PTE_BLOCK_MEMTYPE(MT_NORMAL)    |
 918                                        PTE_BLOCK_OUTER_SHARE           |
 919                                        PTE_BLOCK_NS                    |
 920                                        PTE_TYPE_VALID);
 921                } else
 922#endif
 923                {
 924                        mmu_change_region_attr(
 925                                        CONFIG_SYS_DDR_BLOCK2_BASE,
 926                                        gd->ram_size -
 927                                        CONFIG_SYS_DDR_BLOCK1_SIZE,
 928                                        PTE_BLOCK_MEMTYPE(MT_NORMAL)    |
 929                                        PTE_BLOCK_OUTER_SHARE           |
 930                                        PTE_BLOCK_NS                    |
 931                                        PTE_TYPE_VALID);
 932                }
 933        }
 934}
 935
 936__weak int dram_init(void)
 937{
 938        fsl_initdram();
 939#if !defined(CONFIG_SPL) || defined(CONFIG_SPL_BUILD)
 940        /* This will break-before-make MMU for DDR */
 941        update_early_mmu_table();
 942#endif
 943
 944        return 0;
 945}
 946