uboot/arch/arm/mach-imx/imx8/image.c
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   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright 2019 NXP
   4 */
   5
   6#include <common.h>
   7#include <errno.h>
   8#include <log.h>
   9#include <malloc.h>
  10#include <asm/io.h>
  11#include <mmc.h>
  12#include <spi_flash.h>
  13#include <nand.h>
  14#include <asm/arch/image.h>
  15#include <asm/arch/sys_proto.h>
  16#include <asm/mach-imx/boot_mode.h>
  17
  18#define MMC_DEV         0
  19#define QSPI_DEV        1
  20#define NAND_DEV        2
  21#define QSPI_NOR_DEV    3
  22
  23static int __get_container_size(ulong addr)
  24{
  25        struct container_hdr *phdr;
  26        struct boot_img_t *img_entry;
  27        struct signature_block_hdr *sign_hdr;
  28        u8 i = 0;
  29        u32 max_offset = 0, img_end;
  30
  31        phdr = (struct container_hdr *)addr;
  32        if (phdr->tag != 0x87 && phdr->version != 0x0) {
  33                debug("Wrong container header\n");
  34                return -EFAULT;
  35        }
  36
  37        max_offset = sizeof(struct container_hdr);
  38
  39        img_entry = (struct boot_img_t *)(addr + sizeof(struct container_hdr));
  40        for (i = 0; i < phdr->num_images; i++) {
  41                img_end = img_entry->offset + img_entry->size;
  42                if (img_end > max_offset)
  43                        max_offset = img_end;
  44
  45                debug("img[%u], end = 0x%x\n", i, img_end);
  46
  47                img_entry++;
  48        }
  49
  50        if (phdr->sig_blk_offset != 0) {
  51                sign_hdr = (struct signature_block_hdr *)(addr + phdr->sig_blk_offset);
  52                u16 len = sign_hdr->length_lsb + (sign_hdr->length_msb << 8);
  53
  54                if (phdr->sig_blk_offset + len > max_offset)
  55                        max_offset = phdr->sig_blk_offset + len;
  56
  57                debug("sigblk, end = 0x%x\n", phdr->sig_blk_offset + len);
  58        }
  59
  60        return max_offset;
  61}
  62
  63static int get_container_size(void *dev, int dev_type, unsigned long offset)
  64{
  65        u8 *buf = malloc(CONTAINER_HDR_ALIGNMENT);
  66        int ret = 0;
  67
  68        if (!buf) {
  69                printf("Malloc buffer failed\n");
  70                return -ENOMEM;
  71        }
  72
  73#ifdef CONFIG_SPL_MMC_SUPPORT
  74        if (dev_type == MMC_DEV) {
  75                unsigned long count = 0;
  76                struct mmc *mmc = (struct mmc *)dev;
  77
  78                count = blk_dread(mmc_get_blk_desc(mmc),
  79                                  offset / mmc->read_bl_len,
  80                                  CONTAINER_HDR_ALIGNMENT / mmc->read_bl_len,
  81                                  buf);
  82                if (count == 0) {
  83                        printf("Read container image from MMC/SD failed\n");
  84                        return -EIO;
  85                }
  86        }
  87#endif
  88
  89#ifdef CONFIG_SPL_SPI_LOAD
  90        if (dev_type == QSPI_DEV) {
  91                struct spi_flash *flash = (struct spi_flash *)dev;
  92
  93                ret = spi_flash_read(flash, offset,
  94                                     CONTAINER_HDR_ALIGNMENT, buf);
  95                if (ret != 0) {
  96                        printf("Read container image from QSPI failed\n");
  97                        return -EIO;
  98                }
  99        }
 100#endif
 101
 102#ifdef CONFIG_SPL_NAND_SUPPORT
 103        if (dev_type == NAND_DEV) {
 104                ret = nand_spl_load_image(offset, CONTAINER_HDR_ALIGNMENT,
 105                                          buf);
 106                if (ret != 0) {
 107                        printf("Read container image from NAND failed\n");
 108                        return -EIO;
 109                }
 110        }
 111#endif
 112
 113#ifdef CONFIG_SPL_NOR_SUPPORT
 114        if (dev_type == QSPI_NOR_DEV)
 115                memcpy(buf, (const void *)offset, CONTAINER_HDR_ALIGNMENT);
 116#endif
 117
 118        ret = __get_container_size((ulong)buf);
 119
 120        free(buf);
 121
 122        return ret;
 123}
 124
 125static unsigned long get_boot_device_offset(void *dev, int dev_type)
 126{
 127        unsigned long offset = 0;
 128
 129        if (dev_type == MMC_DEV) {
 130                struct mmc *mmc = (struct mmc *)dev;
 131
 132                if (IS_SD(mmc) || mmc->part_config == MMCPART_NOAVAILABLE) {
 133                        offset = CONTAINER_HDR_MMCSD_OFFSET;
 134                } else {
 135                        u8 part = EXT_CSD_EXTRACT_BOOT_PART(mmc->part_config);
 136
 137                        if (part == 1 || part == 2) {
 138                                if (is_imx8qxp() && is_soc_rev(CHIP_REV_B))
 139                                        offset = CONTAINER_HDR_MMCSD_OFFSET;
 140                                else
 141                                        offset = CONTAINER_HDR_EMMC_OFFSET;
 142                        } else {
 143                                offset = CONTAINER_HDR_MMCSD_OFFSET;
 144                        }
 145                }
 146        } else if (dev_type == QSPI_DEV) {
 147                offset = CONTAINER_HDR_QSPI_OFFSET;
 148        } else if (dev_type == NAND_DEV) {
 149                offset = CONTAINER_HDR_NAND_OFFSET;
 150        } else if (dev_type == QSPI_NOR_DEV) {
 151                offset = CONTAINER_HDR_QSPI_OFFSET + 0x08000000;
 152        }
 153
 154        return offset;
 155}
 156
 157static int get_imageset_end(void *dev, int dev_type)
 158{
 159        unsigned long offset1 = 0, offset2 = 0;
 160        int value_container[2];
 161
 162        offset1 = get_boot_device_offset(dev, dev_type);
 163        offset2 = CONTAINER_HDR_ALIGNMENT + offset1;
 164
 165        value_container[0] = get_container_size(dev, dev_type, offset1);
 166        if (value_container[0] < 0) {
 167                printf("Parse seco container failed %d\n", value_container[0]);
 168                return value_container[0];
 169        }
 170
 171        debug("seco container size 0x%x\n", value_container[0]);
 172
 173        value_container[1] = get_container_size(dev, dev_type, offset2);
 174        if (value_container[1] < 0) {
 175                debug("Parse scu container failed %d, only seco container\n",
 176                      value_container[1]);
 177                /* return seco container total size */
 178                return value_container[0] + offset1;
 179        }
 180
 181        debug("scu container size 0x%x\n", value_container[1]);
 182
 183        return value_container[1] + offset2;
 184}
 185
 186#ifdef CONFIG_SPL_SPI_LOAD
 187unsigned long spl_spi_get_uboot_offs(struct spi_flash *flash)
 188{
 189        int end;
 190
 191        end = get_imageset_end(flash, QSPI_DEV);
 192        end = ROUND(end, SZ_1K);
 193
 194        printf("Load image from QSPI 0x%x\n", end);
 195
 196        return end;
 197}
 198#endif
 199
 200#ifdef CONFIG_SPL_MMC_SUPPORT
 201unsigned long spl_mmc_get_uboot_raw_sector(struct mmc *mmc,
 202                                           unsigned long raw_sect)
 203{
 204        int end;
 205
 206        end = get_imageset_end(mmc, MMC_DEV);
 207        end = ROUND(end, SZ_1K);
 208
 209        printf("Load image from MMC/SD 0x%x\n", end);
 210
 211        return end / mmc->read_bl_len;
 212}
 213#endif
 214
 215#ifdef CONFIG_SPL_NAND_SUPPORT
 216uint32_t spl_nand_get_uboot_raw_page(void)
 217{
 218        int end;
 219
 220        end = get_imageset_end((void *)NULL, NAND_DEV);
 221        end = ROUND(end, SZ_16K);
 222
 223        printf("Load image from NAND 0x%x\n", end);
 224
 225        return end;
 226}
 227#endif
 228
 229#ifdef CONFIG_SPL_NOR_SUPPORT
 230unsigned long spl_nor_get_uboot_base(void)
 231{
 232        int end;
 233
 234        /* Calculate the image set end,
 235         * if it is less than CONFIG_SYS_UBOOT_BASE(0x8281000),
 236         * we use CONFIG_SYS_UBOOT_BASE
 237         * Otherwise, use the calculated address
 238         */
 239        end = get_imageset_end((void *)NULL, QSPI_NOR_DEV);
 240        if (end <= CONFIG_SYS_UBOOT_BASE)
 241                end = CONFIG_SYS_UBOOT_BASE;
 242        else
 243                end = ROUND(end, SZ_1K);
 244
 245        printf("Load image from NOR 0x%x\n", end);
 246
 247        return end;
 248}
 249#endif
 250