| /* |
| * (C) Copyright 2010 |
| * Texas Instruments, <www.ti.com> |
| * |
| * Aneesh V <aneesh@ti.com> |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| #include <common.h> |
| #include <dm.h> |
| #include <spl.h> |
| #include <linux/compiler.h> |
| #include <errno.h> |
| #include <asm/u-boot.h> |
| #include <errno.h> |
| #include <mmc.h> |
| #include <image.h> |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| static int mmc_load_legacy(struct mmc *mmc, ulong sector, |
| struct image_header *header) |
| { |
| u32 image_size_sectors; |
| unsigned long count; |
| int ret; |
| |
| ret = spl_parse_image_header(header); |
| if (ret) |
| return ret; |
| |
| /* convert size to sectors - round up */ |
| image_size_sectors = (spl_image.size + mmc->read_bl_len - 1) / |
| mmc->read_bl_len; |
| |
| /* Read the header too to avoid extra memcpy */ |
| count = blk_dread(mmc_get_blk_desc(mmc), sector, image_size_sectors, |
| (void *)(ulong)spl_image.load_addr); |
| debug("read %x sectors to %x\n", image_size_sectors, |
| spl_image.load_addr); |
| if (count != image_size_sectors) |
| return -EIO; |
| |
| return 0; |
| } |
| |
| static ulong h_spl_load_read(struct spl_load_info *load, ulong sector, |
| ulong count, void *buf) |
| { |
| struct mmc *mmc = load->dev; |
| |
| return blk_dread(mmc_get_blk_desc(mmc), sector, count, buf); |
| } |
| |
| static int mmc_load_image_raw_sector(struct mmc *mmc, unsigned long sector) |
| { |
| unsigned long count; |
| struct image_header *header; |
| int ret = 0; |
| |
| header = (struct image_header *)(CONFIG_SYS_TEXT_BASE - |
| sizeof(struct image_header)); |
| |
| /* read image header to find the image size & load address */ |
| count = blk_dread(mmc_get_blk_desc(mmc), sector, 1, header); |
| debug("hdr read sector %lx, count=%lu\n", sector, count); |
| if (count == 0) { |
| ret = -EIO; |
| goto end; |
| } |
| |
| if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) && |
| image_get_magic(header) == FDT_MAGIC) { |
| struct spl_load_info load; |
| |
| debug("Found FIT\n"); |
| load.dev = mmc; |
| load.priv = NULL; |
| load.filename = NULL; |
| load.bl_len = mmc->read_bl_len; |
| load.read = h_spl_load_read; |
| ret = spl_load_simple_fit(&load, sector, header); |
| } else { |
| ret = mmc_load_legacy(mmc, sector, header); |
| } |
| |
| end: |
| if (ret) { |
| #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT |
| puts("mmc_load_image_raw_sector: mmc block read error\n"); |
| #endif |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| int spl_mmc_get_device_index(u32 boot_device) |
| { |
| switch (boot_device) { |
| case BOOT_DEVICE_MMC1: |
| return 0; |
| case BOOT_DEVICE_MMC2: |
| case BOOT_DEVICE_MMC2_2: |
| return 1; |
| } |
| |
| #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT |
| printf("spl: unsupported mmc boot device.\n"); |
| #endif |
| |
| return -ENODEV; |
| } |
| |
| static int spl_mmc_find_device(struct mmc **mmcp, u32 boot_device) |
| { |
| #ifdef CONFIG_DM_MMC |
| struct udevice *dev; |
| #endif |
| int err, mmc_dev; |
| |
| mmc_dev = spl_mmc_get_device_index(boot_device); |
| if (mmc_dev < 0) |
| return mmc_dev; |
| |
| err = mmc_initialize(NULL); |
| if (err) { |
| #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT |
| printf("spl: could not initialize mmc. error: %d\n", err); |
| #endif |
| return err; |
| } |
| |
| #ifdef CONFIG_DM_MMC |
| err = uclass_get_device(UCLASS_MMC, mmc_dev, &dev); |
| if (!err) |
| *mmcp = mmc_get_mmc_dev(dev); |
| #else |
| *mmcp = find_mmc_device(mmc_dev); |
| err = *mmcp ? 0 : -ENODEV; |
| #endif |
| if (err) { |
| #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT |
| printf("spl: could not find mmc device. error: %d\n", err); |
| #endif |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION |
| static int mmc_load_image_raw_partition(struct mmc *mmc, int partition) |
| { |
| disk_partition_t info; |
| int err; |
| |
| err = part_get_info(mmc_get_blk_desc(mmc), partition, &info); |
| if (err) { |
| #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT |
| puts("spl: partition error\n"); |
| #endif |
| return -1; |
| } |
| |
| #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR |
| return mmc_load_image_raw_sector(mmc, info.start + |
| CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR); |
| #else |
| return mmc_load_image_raw_sector(mmc, info.start); |
| #endif |
| } |
| #else |
| #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION -1 |
| static int mmc_load_image_raw_partition(struct mmc *mmc, int partition) |
| { |
| return -ENOSYS; |
| } |
| #endif |
| |
| #ifdef CONFIG_SPL_OS_BOOT |
| static int mmc_load_image_raw_os(struct mmc *mmc) |
| { |
| unsigned long count; |
| int ret; |
| |
| count = blk_dread(mmc_get_blk_desc(mmc), |
| CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR, |
| CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS, |
| (void *) CONFIG_SYS_SPL_ARGS_ADDR); |
| if (count == 0) { |
| #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT |
| puts("mmc_load_image_raw_os: mmc block read error\n"); |
| #endif |
| return -1; |
| } |
| |
| ret = mmc_load_image_raw_sector(mmc, |
| CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR); |
| if (ret) |
| return ret; |
| |
| if (spl_image.os != IH_OS_LINUX) { |
| puts("Expected Linux image is not found. Trying to start U-boot\n"); |
| return -ENOENT; |
| } |
| |
| return 0; |
| } |
| #else |
| int spl_start_uboot(void) |
| { |
| return 1; |
| } |
| static int mmc_load_image_raw_os(struct mmc *mmc) |
| { |
| return -ENOSYS; |
| } |
| #endif |
| |
| #ifdef CONFIG_SYS_MMCSD_FS_BOOT_PARTITION |
| int spl_mmc_do_fs_boot(struct mmc *mmc) |
| { |
| int err = -ENOSYS; |
| |
| #ifdef CONFIG_SPL_FAT_SUPPORT |
| if (!spl_start_uboot()) { |
| err = spl_load_image_fat_os(mmc_get_blk_desc(mmc), |
| CONFIG_SYS_MMCSD_FS_BOOT_PARTITION); |
| if (!err) |
| return err; |
| } |
| #ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME |
| err = spl_load_image_fat(mmc_get_blk_desc(mmc), |
| CONFIG_SYS_MMCSD_FS_BOOT_PARTITION, |
| CONFIG_SPL_FS_LOAD_PAYLOAD_NAME); |
| if (!err) |
| return err; |
| #endif |
| #endif |
| #ifdef CONFIG_SPL_EXT_SUPPORT |
| if (!spl_start_uboot()) { |
| err = spl_load_image_ext_os(&mmc->block_dev, |
| CONFIG_SYS_MMCSD_FS_BOOT_PARTITION); |
| if (!err) |
| return err; |
| } |
| #ifdef CONFIG_SPL_FS_LOAD_PAYLOAD_NAME |
| err = spl_load_image_ext(&mmc->block_dev, |
| CONFIG_SYS_MMCSD_FS_BOOT_PARTITION, |
| CONFIG_SPL_FS_LOAD_PAYLOAD_NAME); |
| if (!err) |
| return err; |
| #endif |
| #endif |
| |
| #if defined(CONFIG_SPL_FAT_SUPPORT) || defined(CONFIG_SPL_EXT_SUPPORT) |
| err = -ENOENT; |
| #endif |
| |
| return err; |
| } |
| #else |
| int spl_mmc_do_fs_boot(struct mmc *mmc) |
| { |
| return -ENOSYS; |
| } |
| #endif |
| |
| int spl_mmc_load_image(u32 boot_device) |
| { |
| struct mmc *mmc = NULL; |
| u32 boot_mode; |
| int err = 0; |
| __maybe_unused int part; |
| |
| err = spl_mmc_find_device(&mmc, boot_device); |
| if (err) |
| return err; |
| |
| err = mmc_init(mmc); |
| if (err) { |
| #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT |
| printf("spl: mmc init failed with error: %d\n", err); |
| #endif |
| return err; |
| } |
| |
| boot_mode = spl_boot_mode(boot_device); |
| err = -EINVAL; |
| switch (boot_mode) { |
| case MMCSD_MODE_EMMCBOOT: |
| /* |
| * We need to check what the partition is configured to. |
| * 1 and 2 match up to boot0 / boot1 and 7 is user data |
| * which is the first physical partition (0). |
| */ |
| part = (mmc->part_config >> 3) & PART_ACCESS_MASK; |
| |
| if (part == 7) |
| part = 0; |
| |
| err = blk_dselect_hwpart(mmc_get_blk_desc(mmc), part); |
| if (err) { |
| #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT |
| puts("spl: mmc partition switch failed\n"); |
| #endif |
| return err; |
| } |
| /* Fall through */ |
| case MMCSD_MODE_RAW: |
| debug("spl: mmc boot mode: raw\n"); |
| |
| if (!spl_start_uboot()) { |
| err = mmc_load_image_raw_os(mmc); |
| if (!err) |
| return err; |
| } |
| |
| err = mmc_load_image_raw_partition(mmc, |
| CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION); |
| if (!err) |
| return err; |
| #if defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR) |
| err = mmc_load_image_raw_sector(mmc, |
| CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR); |
| if (!err) |
| return err; |
| #endif |
| /* If RAW mode fails, try FS mode. */ |
| case MMCSD_MODE_FS: |
| debug("spl: mmc boot mode: fs\n"); |
| |
| err = spl_mmc_do_fs_boot(mmc); |
| if (!err) |
| return err; |
| |
| break; |
| case MMCSD_MODE_UNDEFINED: |
| #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT |
| default: |
| puts("spl: mmc: wrong boot mode\n"); |
| #endif |
| } |
| |
| return err; |
| } |