uboot/board/cavium/thunderx/atf.c
<<
>>
Prefs
   1// SPDX-License-Identifier: GPL-2.0+
   2/**
   3 * (C) Copyright 2014, Cavium Inc.
   4**/
   5
   6#include <common.h>
   7#include <command.h>
   8#include <asm/cache.h>
   9#include <asm/io.h>
  10#include <asm/ptrace.h>
  11
  12#include <asm/system.h>
  13#include <cavium/thunderx_svc.h>
  14#include <cavium/atf.h>
  15#include <cavium/atf_part.h>
  16
  17#include <asm/psci.h>
  18
  19#include <malloc.h>
  20
  21ssize_t atf_read_mmc(uintptr_t offset, void *buffer, size_t size)
  22{
  23        struct pt_regs regs;
  24        regs.regs[0] = THUNDERX_MMC_READ;
  25        regs.regs[1] = offset;
  26        regs.regs[2] = size;
  27        regs.regs[3] = (uintptr_t)buffer;
  28
  29        smc_call(&regs);
  30
  31        return regs.regs[0];
  32}
  33
  34ssize_t atf_read_nor(uintptr_t offset, void *buffer, size_t size)
  35{
  36        struct pt_regs regs;
  37        regs.regs[0] = THUNDERX_NOR_READ;
  38        regs.regs[1] = offset;
  39        regs.regs[2] = size;
  40        regs.regs[3] = (uintptr_t)buffer;
  41
  42        smc_call(&regs);
  43
  44        return regs.regs[0];
  45}
  46
  47ssize_t atf_get_pcount(void)
  48{
  49        struct pt_regs regs;
  50        regs.regs[0] = THUNDERX_PART_COUNT;
  51
  52        smc_call(&regs);
  53
  54        return regs.regs[0];
  55}
  56
  57ssize_t atf_get_part(struct storage_partition *part, unsigned int index)
  58{
  59        struct pt_regs regs;
  60        regs.regs[0] = THUNDERX_GET_PART;
  61        regs.regs[1] = (uintptr_t)part;
  62        regs.regs[2] = index;
  63
  64        smc_call(&regs);
  65
  66        return regs.regs[0];
  67}
  68
  69ssize_t atf_erase_nor(uintptr_t offset, size_t size)
  70{
  71        struct pt_regs regs;
  72
  73        regs.regs[0] = THUNDERX_NOR_ERASE;
  74        regs.regs[1] = offset;
  75
  76        smc_call(&regs);
  77
  78        return regs.regs[0];
  79}
  80
  81ssize_t atf_write_nor(uintptr_t offset, const void *buffer, size_t size)
  82{
  83        struct pt_regs regs;
  84
  85        regs.regs[0] = THUNDERX_NOR_WRITE;
  86        regs.regs[1] = offset;
  87        regs.regs[2] = size;
  88        regs.regs[3] = (uintptr_t)buffer;
  89
  90        smc_call(&regs);
  91
  92        return regs.regs[0];
  93}
  94
  95ssize_t atf_write_mmc(uintptr_t offset, const void *buffer, size_t size)
  96{
  97        struct pt_regs regs;
  98
  99        regs.regs[0] = THUNDERX_MMC_WRITE;
 100        regs.regs[1] = offset;
 101        regs.regs[2] = size;
 102        regs.regs[3] = (uintptr_t)buffer;
 103
 104        smc_call(&regs);
 105
 106        return regs.regs[0];
 107}
 108
 109ssize_t atf_dram_size(unsigned int node)
 110{
 111        struct pt_regs regs;
 112        regs.regs[0] = THUNDERX_DRAM_SIZE;
 113        regs.regs[1] = node;
 114
 115        smc_call(&regs);
 116
 117        return regs.regs[0];
 118}
 119
 120ssize_t atf_node_count(void)
 121{
 122        struct pt_regs regs;
 123        regs.regs[0] = THUNDERX_NODE_COUNT;
 124
 125        smc_call(&regs);
 126
 127        return regs.regs[0];
 128}
 129
 130ssize_t atf_env_count(void)
 131{
 132        struct pt_regs regs;
 133        regs.regs[0] = THUNDERX_ENV_COUNT;
 134
 135        smc_call(&regs);
 136
 137        return regs.regs[0];
 138}
 139
 140ssize_t atf_env_string(size_t index, char *str)
 141{
 142        uint64_t *buf = (void *)str;
 143        struct pt_regs regs;
 144        regs.regs[0] = THUNDERX_ENV_STRING;
 145        regs.regs[1] = index;
 146
 147        smc_call(&regs);
 148
 149        if (regs.regs > 0) {
 150                buf[0] = regs.regs[0];
 151                buf[1] = regs.regs[1];
 152                buf[2] = regs.regs[2];
 153                buf[3] = regs.regs[3];
 154
 155                return 1;
 156        } else {
 157                return regs.regs[0];
 158        }
 159}
 160
 161#ifdef CONFIG_CMD_ATF
 162
 163static void atf_print_ver(void)
 164{
 165        struct pt_regs regs;
 166        regs.regs[0] = ARM_STD_SVC_VERSION;
 167
 168        smc_call(&regs);
 169
 170        printf("ARM Std FW version: %ld.%ld\n", regs.regs[0], regs.regs[1]);
 171
 172        regs.regs[0] = THUNDERX_SVC_VERSION;
 173
 174        smc_call(&regs);
 175
 176        printf("ThunderX OEM ver: %ld.%ld\n", regs.regs[0], regs.regs[1]);
 177}
 178
 179static void atf_print_uid(void)
 180{
 181}
 182
 183static void atf_print_part_table(void)
 184{
 185        size_t pcount;
 186        unsigned long i;
 187        int ret;
 188        char *ptype;
 189
 190        struct storage_partition *part = (void *)CONFIG_SYS_LOWMEM_BASE;
 191
 192        pcount = atf_get_pcount();
 193
 194        printf("Partition count: %lu\n\n", pcount);
 195        printf("%10s %10s %10s\n", "Type", "Size", "Offset");
 196
 197        for (i = 0; i < pcount; i++) {
 198                ret = atf_get_part(part, i);
 199
 200                if (ret < 0) {
 201                        printf("Uknown error while reading partition: %d\n",
 202                               ret);
 203                        return;
 204                }
 205
 206                switch (part->type) {
 207                case PARTITION_NBL1FW_REST:
 208                        ptype = "NBL1FW";
 209                        break;
 210                case PARTITION_BL2_BL31:
 211                        ptype = "BL2_BL31";
 212                        break;
 213                case PARTITION_UBOOT:
 214                        ptype = "BOOTLDR";
 215                        break;
 216                case PARTITION_KERNEL:
 217                        ptype = "KERNEL";
 218                        break;
 219                case PARTITION_DEVICE_TREE:
 220                        ptype = "DEVTREE";
 221                        break;
 222                default:
 223                        ptype = "UNKNOWN";
 224                }
 225                printf("%10s %10d %10lx\n", ptype, part->size, part->offset);
 226        }
 227}
 228
 229int do_atf(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 230{
 231        ssize_t ret;
 232        size_t size, offset;
 233        void *buffer = 0;
 234        unsigned int index, node;
 235        char str[4 * sizeof(uint64_t)];
 236
 237        if ((argc == 5) && !strcmp(argv[1], "readmmc")) {
 238                buffer = (void *)hextoul(argv[2], NULL);
 239                offset = dectoul(argv[3], NULL);
 240                size = dectoul(argv[4], NULL);
 241
 242                ret = atf_read_mmc(offset, buffer, size);
 243        } else if ((argc == 5) && !strcmp(argv[1], "readnor")) {
 244                buffer = (void *)hextoul(argv[2], NULL);
 245                offset = dectoul(argv[3], NULL);
 246                size = dectoul(argv[4], NULL);
 247
 248                ret = atf_read_nor(offset, buffer, size);
 249        } else if ((argc == 5) && !strcmp(argv[1], "writemmc")) {
 250                buffer = (void *)hextoul(argv[2], NULL);
 251                offset = dectoul(argv[3], NULL);
 252                size = dectoul(argv[4], NULL);
 253
 254                ret = atf_write_mmc(offset, buffer, size);
 255        } else if ((argc == 5) && !strcmp(argv[1], "writenor")) {
 256                buffer = (void *)hextoul(argv[2], NULL);
 257                offset = dectoul(argv[3], NULL);
 258                size = dectoul(argv[4], NULL);
 259
 260                ret = atf_write_nor(offset, buffer, size);
 261        } else if ((argc == 2) && !strcmp(argv[1], "part")) {
 262                atf_print_part_table();
 263        } else if ((argc == 4) && !strcmp(argv[1], "erasenor")) {
 264                offset = dectoul(argv[2], NULL);
 265                size = dectoul(argv[3], NULL);
 266
 267                ret = atf_erase_nor(offset, size);
 268        } else if ((argc == 2) && !strcmp(argv[1], "envcount")) {
 269                ret = atf_env_count();
 270                printf("Number of environment strings: %zd\n", ret);
 271        } else if ((argc == 3) && !strcmp(argv[1], "envstring")) {
 272                index = dectoul(argv[2], NULL);
 273                ret = atf_env_string(index, str);
 274                if (ret > 0)
 275                        printf("Environment string %d: %s\n", index, str);
 276                else
 277                        printf("Return code: %zd\n", ret);
 278        } else if ((argc == 3) && !strcmp(argv[1], "dramsize")) {
 279                node = dectoul(argv[2], NULL);
 280                ret = atf_dram_size(node);
 281                printf("DRAM size: %zd Mbytes\n", ret >> 20);
 282        } else if ((argc == 2) && !strcmp(argv[1], "nodes")) {
 283                ret = atf_node_count();
 284                printf("Nodes count: %zd\n", ret);
 285        } else if ((argc == 2) && !strcmp(argv[1], "ver")) {
 286                atf_print_ver();
 287        } else if ((argc == 2) && !strcmp(argv[1], "uid")) {
 288                atf_print_uid();
 289        } else {
 290                return CMD_RET_USAGE;
 291        }
 292
 293        return 0;
 294}
 295
 296U_BOOT_CMD(
 297        atf,   10,   1,     do_atf,
 298        "issue calls to ATF",
 299        "\t readmmc addr offset size - read MMC card\n"
 300        "\t readnor addr offset size - read NOR flash\n"
 301        "\t writemmc addr offset size - write MMC card\n"
 302        "\t writenor addr offset size - write NOR flash\n"
 303        "\t erasenor offset size - erase NOR flash\n"
 304        "\t nodes - number of nodes\n"
 305        "\t dramsize node - size of DRAM attached to node\n"
 306        "\t envcount - number of environment strings\n"
 307        "\t envstring index - print the environment string\n"
 308        "\t part - print MMC partition table\n"
 309        "\t ver - print ATF call set versions\n"
 310);
 311
 312#endif
 313