upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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785 lines
18 KiB
785 lines
18 KiB
/*
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* Copyright (C) 2016 Marvell International Ltd.
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*
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* SPDX-License-Identifier: GPL-2.0
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* https://spdx.org/licenses
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*/
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#include <config.h>
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#include <common.h>
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#include <command.h>
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#include <vsprintf.h>
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#include <errno.h>
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#include <dm.h>
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#include <spi_flash.h>
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#include <spi.h>
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#include <nand.h>
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#include <usb.h>
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#include <fs.h>
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#include <mmc.h>
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#ifdef CONFIG_BLK
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#include <blk.h>
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#endif
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#include <u-boot/sha1.h>
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#include <u-boot/sha256.h>
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#ifndef CONFIG_SYS_MMC_ENV_DEV
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#define CONFIG_SYS_MMC_ENV_DEV 0
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#endif
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#if defined(CONFIG_ARMADA_8K)
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#define MAIN_HDR_MAGIC 0xB105B002
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struct mvebu_image_header {
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u32 magic; /* 0-3 */
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u32 prolog_size; /* 4-7 */
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u32 prolog_checksum; /* 8-11 */
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u32 boot_image_size; /* 12-15 */
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u32 boot_image_checksum; /* 16-19 */
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u32 rsrvd0; /* 20-23 */
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u32 load_addr; /* 24-27 */
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u32 exec_addr; /* 28-31 */
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u8 uart_cfg; /* 32 */
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u8 baudrate; /* 33 */
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u8 ext_count; /* 34 */
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u8 aux_flags; /* 35 */
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u32 io_arg_0; /* 36-39 */
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u32 io_arg_1; /* 40-43 */
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u32 io_arg_2; /* 43-47 */
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u32 io_arg_3; /* 48-51 */
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u32 rsrvd1; /* 52-55 */
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u32 rsrvd2; /* 56-59 */
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u32 rsrvd3; /* 60-63 */
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};
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#elif defined(CONFIG_ARMADA_3700) /* A3700 */
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#define HASH_SUM_LEN 16
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#define IMAGE_VERSION_3_6_0 0x030600
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#define IMAGE_VERSION_3_5_0 0x030500
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struct common_tim_data {
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u32 version;
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u32 identifier;
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u32 trusted;
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u32 issue_date;
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u32 oem_unique_id;
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u32 reserved[5]; /* Reserve 20 bytes */
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u32 boot_flash_sign;
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u32 num_images;
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u32 num_keys;
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u32 size_of_reserved;
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};
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struct mvebu_image_info {
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u32 image_id;
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u32 next_image_id;
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u32 flash_entry_addr;
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u32 load_addr;
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u32 image_size;
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u32 image_size_to_hash;
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u32 hash_algorithm_id;
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u32 hash[HASH_SUM_LEN]; /* Reserve 512 bits for the hash */
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u32 partition_number;
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u32 enc_algorithm_id;
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u32 encrypt_start_offset;
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u32 encrypt_size;
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};
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#endif /* CONFIG_ARMADA_XXX */
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struct bubt_dev {
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char name[8];
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size_t (*read)(const char *file_name);
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int (*write)(size_t image_size);
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int (*active)(void);
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};
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static ulong get_load_addr(void)
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{
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const char *addr_str;
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unsigned long addr;
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addr_str = env_get("loadaddr");
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if (addr_str)
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addr = simple_strtoul(addr_str, NULL, 16);
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else
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addr = CONFIG_SYS_LOAD_ADDR;
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return addr;
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}
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/********************************************************************
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* eMMC services
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********************************************************************/
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#ifdef CONFIG_DM_MMC
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static int mmc_burn_image(size_t image_size)
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{
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struct mmc *mmc;
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lbaint_t start_lba;
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lbaint_t blk_count;
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ulong blk_written;
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int err;
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const u8 mmc_dev_num = CONFIG_SYS_MMC_ENV_DEV;
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#ifdef CONFIG_BLK
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struct blk_desc *blk_desc;
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#endif
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mmc = find_mmc_device(mmc_dev_num);
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if (!mmc) {
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printf("No SD/MMC/eMMC card found\n");
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return -ENOMEDIUM;
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}
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err = mmc_init(mmc);
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if (err) {
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printf("%s(%d) init failed\n", IS_SD(mmc) ? "SD" : "MMC",
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mmc_dev_num);
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return err;
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}
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#ifdef CONFIG_SYS_MMC_ENV_PART
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if (mmc->part_num != CONFIG_SYS_MMC_ENV_PART) {
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err = mmc_switch_part(mmc_dev_num, CONFIG_SYS_MMC_ENV_PART);
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if (err) {
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printf("MMC partition switch failed\n");
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return err;
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}
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}
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#endif
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/* SD reserves LBA-0 for MBR and boots from LBA-1,
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* MMC/eMMC boots from LBA-0
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*/
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start_lba = IS_SD(mmc) ? 1 : 0;
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#ifdef CONFIG_BLK
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blk_count = image_size / mmc->write_bl_len;
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if (image_size % mmc->write_bl_len)
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blk_count += 1;
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blk_desc = mmc_get_blk_desc(mmc);
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if (!blk_desc) {
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printf("Error - failed to obtain block descriptor\n");
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return -ENODEV;
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}
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blk_written = blk_dwrite(blk_desc, start_lba, blk_count,
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(void *)get_load_addr());
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#else
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blk_count = image_size / mmc->block_dev.blksz;
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if (image_size % mmc->block_dev.blksz)
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blk_count += 1;
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blk_written = mmc->block_dev.block_write(mmc_dev_num,
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start_lba, blk_count,
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(void *)get_load_addr());
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#endif /* CONFIG_BLK */
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if (blk_written != blk_count) {
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printf("Error - written %#lx blocks\n", blk_written);
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return -ENOSPC;
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}
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printf("Done!\n");
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#ifdef CONFIG_SYS_MMC_ENV_PART
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if (mmc->part_num != CONFIG_SYS_MMC_ENV_PART)
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mmc_switch_part(mmc_dev_num, mmc->part_num);
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#endif
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return 0;
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}
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static size_t mmc_read_file(const char *file_name)
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{
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loff_t act_read = 0;
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int rc;
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struct mmc *mmc;
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const u8 mmc_dev_num = CONFIG_SYS_MMC_ENV_DEV;
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mmc = find_mmc_device(mmc_dev_num);
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if (!mmc) {
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printf("No SD/MMC/eMMC card found\n");
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return 0;
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}
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if (mmc_init(mmc)) {
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printf("%s(%d) init failed\n", IS_SD(mmc) ? "SD" : "MMC",
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mmc_dev_num);
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return 0;
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}
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/* Load from data partition (0) */
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if (fs_set_blk_dev("mmc", "0", FS_TYPE_ANY)) {
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printf("Error: MMC 0 not found\n");
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return 0;
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}
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/* Perfrom file read */
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rc = fs_read(file_name, get_load_addr(), 0, 0, &act_read);
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if (rc)
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return 0;
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return act_read;
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}
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static int is_mmc_active(void)
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{
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return 1;
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}
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#else /* CONFIG_DM_MMC */
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static int mmc_burn_image(size_t image_size)
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{
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return -ENODEV;
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}
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static size_t mmc_read_file(const char *file_name)
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{
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return 0;
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}
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static int is_mmc_active(void)
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{
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return 0;
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}
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#endif /* CONFIG_DM_MMC */
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/********************************************************************
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* SPI services
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********************************************************************/
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#ifdef CONFIG_SPI_FLASH
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static int spi_burn_image(size_t image_size)
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{
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int ret;
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struct spi_flash *flash;
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u32 erase_bytes;
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/* Probe the SPI bus to get the flash device */
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flash = spi_flash_probe(CONFIG_ENV_SPI_BUS,
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CONFIG_ENV_SPI_CS,
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CONFIG_SF_DEFAULT_SPEED,
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CONFIG_SF_DEFAULT_MODE);
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if (!flash) {
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printf("Failed to probe SPI Flash\n");
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return -ENOMEDIUM;
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}
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#ifdef CONFIG_SPI_FLASH_PROTECTION
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spi_flash_protect(flash, 0);
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#endif
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erase_bytes = image_size +
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(flash->erase_size - image_size % flash->erase_size);
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printf("Erasing %d bytes (%d blocks) at offset 0 ...",
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erase_bytes, erase_bytes / flash->erase_size);
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ret = spi_flash_erase(flash, 0, erase_bytes);
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if (ret)
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printf("Error!\n");
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else
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printf("Done!\n");
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printf("Writing %d bytes from 0x%lx to offset 0 ...",
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(int)image_size, get_load_addr());
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ret = spi_flash_write(flash, 0, image_size, (void *)get_load_addr());
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if (ret)
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printf("Error!\n");
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else
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printf("Done!\n");
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#ifdef CONFIG_SPI_FLASH_PROTECTION
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spi_flash_protect(flash, 1);
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#endif
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return ret;
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}
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static int is_spi_active(void)
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{
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return 1;
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}
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#else /* CONFIG_SPI_FLASH */
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static int spi_burn_image(size_t image_size)
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{
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return -ENODEV;
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}
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static int is_spi_active(void)
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{
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return 0;
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}
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#endif /* CONFIG_SPI_FLASH */
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/********************************************************************
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* NAND services
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********************************************************************/
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#ifdef CONFIG_CMD_NAND
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static int nand_burn_image(size_t image_size)
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{
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int ret;
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uint32_t block_size;
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struct mtd_info *mtd;
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mtd = get_nand_dev_by_index(nand_curr_device);
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if (!mtd) {
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puts("\nno devices available\n");
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return -ENOMEDIUM;
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}
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block_size = mtd->erasesize;
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/* Align U-Boot size to currently used blocksize */
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image_size = ((image_size + (block_size - 1)) & (~(block_size - 1)));
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/* Erase the U-BOOT image space */
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printf("Erasing 0x%x - 0x%x:...", 0, (int)image_size);
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ret = nand_erase(mtd, 0, image_size);
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if (ret) {
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printf("Error!\n");
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goto error;
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}
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printf("Done!\n");
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/* Write the image to flash */
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printf("Writing %d bytes from 0x%lx to offset 0 ... ",
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(int)image_size, get_load_addr());
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ret = nand_write(mtd, 0, &image_size, (void *)get_load_addr());
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if (ret)
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printf("Error!\n");
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else
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printf("Done!\n");
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error:
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return ret;
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}
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static int is_nand_active(void)
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{
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return 1;
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}
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#else /* CONFIG_CMD_NAND */
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static int nand_burn_image(size_t image_size)
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{
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return -ENODEV;
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}
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static int is_nand_active(void)
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{
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return 0;
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}
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#endif /* CONFIG_CMD_NAND */
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/********************************************************************
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* USB services
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********************************************************************/
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#if defined(CONFIG_USB_STORAGE) && defined(CONFIG_BLK)
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static size_t usb_read_file(const char *file_name)
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{
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loff_t act_read = 0;
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struct udevice *dev;
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int rc;
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usb_stop();
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if (usb_init() < 0) {
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printf("Error: usb_init failed\n");
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return 0;
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}
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/* Try to recognize storage devices immediately */
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blk_first_device(IF_TYPE_USB, &dev);
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if (!dev) {
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printf("Error: USB storage device not found\n");
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return 0;
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}
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/* Always load from usb 0 */
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if (fs_set_blk_dev("usb", "0", FS_TYPE_ANY)) {
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printf("Error: USB 0 not found\n");
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return 0;
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}
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/* Perfrom file read */
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rc = fs_read(file_name, get_load_addr(), 0, 0, &act_read);
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if (rc)
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return 0;
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return act_read;
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}
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static int is_usb_active(void)
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{
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return 1;
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}
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#else /* defined(CONFIG_USB_STORAGE) && defined (CONFIG_BLK) */
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static size_t usb_read_file(const char *file_name)
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{
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return 0;
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}
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static int is_usb_active(void)
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{
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return 0;
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}
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#endif /* defined(CONFIG_USB_STORAGE) && defined (CONFIG_BLK) */
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/********************************************************************
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* Network services
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********************************************************************/
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#ifdef CONFIG_CMD_NET
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static size_t tftp_read_file(const char *file_name)
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{
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/* update global variable load_addr before tftp file from network */
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load_addr = get_load_addr();
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return net_loop(TFTPGET);
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}
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static int is_tftp_active(void)
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{
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return 1;
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}
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#else
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static size_t tftp_read_file(const char *file_name)
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{
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return 0;
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}
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static int is_tftp_active(void)
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{
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return 0;
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}
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#endif /* CONFIG_CMD_NET */
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enum bubt_devices {
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BUBT_DEV_NET = 0,
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BUBT_DEV_USB,
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BUBT_DEV_MMC,
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BUBT_DEV_SPI,
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BUBT_DEV_NAND,
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BUBT_MAX_DEV
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};
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struct bubt_dev bubt_devs[BUBT_MAX_DEV] = {
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{"tftp", tftp_read_file, NULL, is_tftp_active},
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{"usb", usb_read_file, NULL, is_usb_active},
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{"mmc", mmc_read_file, mmc_burn_image, is_mmc_active},
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{"spi", NULL, spi_burn_image, is_spi_active},
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{"nand", NULL, nand_burn_image, is_nand_active},
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};
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static int bubt_write_file(struct bubt_dev *dst, size_t image_size)
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{
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if (!dst->write) {
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printf("Error: Write not supported on device %s\n", dst->name);
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return -ENOTSUPP;
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}
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return dst->write(image_size);
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}
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#if defined(CONFIG_ARMADA_8K)
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u32 do_checksum32(u32 *start, int32_t len)
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{
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u32 sum = 0;
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u32 *startp = start;
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do {
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sum += *startp;
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startp++;
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len -= 4;
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} while (len > 0);
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return sum;
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}
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static int check_image_header(void)
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{
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struct mvebu_image_header *hdr =
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(struct mvebu_image_header *)get_load_addr();
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u32 header_len = hdr->prolog_size;
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u32 checksum;
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u32 checksum_ref = hdr->prolog_checksum;
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/*
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* For now compare checksum, and magic. Later we can
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* verify more stuff on the header like interface type, etc
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*/
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if (hdr->magic != MAIN_HDR_MAGIC) {
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printf("ERROR: Bad MAGIC 0x%08x != 0x%08x\n",
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hdr->magic, MAIN_HDR_MAGIC);
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return -ENOEXEC;
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}
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/* The checksum value is discarded from checksum calculation */
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hdr->prolog_checksum = 0;
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checksum = do_checksum32((u32 *)hdr, header_len);
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if (checksum != checksum_ref) {
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printf("Error: Bad Image checksum. 0x%x != 0x%x\n",
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checksum, checksum_ref);
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return -ENOEXEC;
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}
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/* Restore the checksum before writing */
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hdr->prolog_checksum = checksum_ref;
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printf("Image checksum...OK!\n");
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return 0;
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}
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#elif defined(CONFIG_ARMADA_3700) /* Armada 3700 */
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static int check_image_header(void)
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{
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struct common_tim_data *hdr = (struct common_tim_data *)get_load_addr();
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int image_num;
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u8 hash_160_output[SHA1_SUM_LEN];
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u8 hash_256_output[SHA256_SUM_LEN];
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sha1_context hash1_text;
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sha256_context hash256_text;
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u8 *hash_output;
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u32 hash_algorithm_id;
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u32 image_size_to_hash;
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u32 flash_entry_addr;
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u32 *hash_value;
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u32 internal_hash[HASH_SUM_LEN];
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const u8 *buff;
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u32 num_of_image = hdr->num_images;
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u32 version = hdr->version;
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u32 trusted = hdr->trusted;
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/* bubt checksum validation only supports nontrusted images */
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|
if (trusted == 1) {
|
|
printf("bypass image validation, ");
|
|
printf("only untrusted image is supported now\n");
|
|
return 0;
|
|
}
|
|
/* only supports image version 3.5 and 3.6 */
|
|
if (version != IMAGE_VERSION_3_5_0 && version != IMAGE_VERSION_3_6_0) {
|
|
printf("Error: Unsupported Image version = 0x%08x\n", version);
|
|
return -ENOEXEC;
|
|
}
|
|
/* validate images hash value */
|
|
for (image_num = 0; image_num < num_of_image; image_num++) {
|
|
struct mvebu_image_info *info =
|
|
(struct mvebu_image_info *)(get_load_addr() +
|
|
sizeof(struct common_tim_data) +
|
|
image_num * sizeof(struct mvebu_image_info));
|
|
hash_algorithm_id = info->hash_algorithm_id;
|
|
image_size_to_hash = info->image_size_to_hash;
|
|
flash_entry_addr = info->flash_entry_addr;
|
|
hash_value = info->hash;
|
|
buff = (const u8 *)(get_load_addr() + flash_entry_addr);
|
|
|
|
if (image_num == 0) {
|
|
/*
|
|
* The first image includes hash values in its content.
|
|
* For hash calculation, we need to save the original
|
|
* hash values to a local variable that will be
|
|
* copied back for comparsion and set all zeros to
|
|
* the orignal hash values for calculating new value.
|
|
* First image original format :
|
|
* x...x (datum1) x...x(orig. hash values) x...x(datum2)
|
|
* Replaced first image format :
|
|
* x...x (datum1) 0...0(hash values) x...x(datum2)
|
|
*/
|
|
memcpy(internal_hash, hash_value,
|
|
sizeof(internal_hash));
|
|
memset(hash_value, 0, sizeof(internal_hash));
|
|
}
|
|
if (image_size_to_hash == 0) {
|
|
printf("Warning: Image_%d hash checksum is disabled, ",
|
|
image_num);
|
|
printf("skip the image validation.\n");
|
|
continue;
|
|
}
|
|
switch (hash_algorithm_id) {
|
|
case SHA1_SUM_LEN:
|
|
sha1_starts(&hash1_text);
|
|
sha1_update(&hash1_text, buff, image_size_to_hash);
|
|
sha1_finish(&hash1_text, hash_160_output);
|
|
hash_output = hash_160_output;
|
|
break;
|
|
case SHA256_SUM_LEN:
|
|
sha256_starts(&hash256_text);
|
|
sha256_update(&hash256_text, buff, image_size_to_hash);
|
|
sha256_finish(&hash256_text, hash_256_output);
|
|
hash_output = hash_256_output;
|
|
break;
|
|
default:
|
|
printf("Error: Unsupported hash_algorithm_id = %d\n",
|
|
hash_algorithm_id);
|
|
return -ENOEXEC;
|
|
}
|
|
if (image_num == 0)
|
|
memcpy(hash_value, internal_hash,
|
|
sizeof(internal_hash));
|
|
if (memcmp(hash_value, hash_output, hash_algorithm_id) != 0) {
|
|
printf("Error: Image_%d checksum is not correct\n",
|
|
image_num);
|
|
return -ENOEXEC;
|
|
}
|
|
}
|
|
printf("Image checksum...OK!\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
#else /* Not ARMADA? */
|
|
static int check_image_header(void)
|
|
{
|
|
printf("bubt cmd does not support this SoC device or family!\n");
|
|
return -ENOEXEC;
|
|
}
|
|
#endif
|
|
|
|
static int bubt_verify(size_t image_size)
|
|
{
|
|
int err;
|
|
|
|
/* Check a correct image header exists */
|
|
err = check_image_header();
|
|
if (err) {
|
|
printf("Error: Image header verification failed\n");
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bubt_read_file(struct bubt_dev *src)
|
|
{
|
|
size_t image_size;
|
|
|
|
if (!src->read) {
|
|
printf("Error: Read not supported on device \"%s\"\n",
|
|
src->name);
|
|
return 0;
|
|
}
|
|
|
|
image_size = src->read(net_boot_file_name);
|
|
if (image_size <= 0) {
|
|
printf("Error: Failed to read file %s from %s\n",
|
|
net_boot_file_name, src->name);
|
|
return 0;
|
|
}
|
|
|
|
return image_size;
|
|
}
|
|
|
|
static int bubt_is_dev_active(struct bubt_dev *dev)
|
|
{
|
|
if (!dev->active) {
|
|
printf("Device \"%s\" not supported by U-BOOT image\n",
|
|
dev->name);
|
|
return 0;
|
|
}
|
|
|
|
if (!dev->active()) {
|
|
printf("Device \"%s\" is inactive\n", dev->name);
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
struct bubt_dev *find_bubt_dev(char *dev_name)
|
|
{
|
|
int dev;
|
|
|
|
for (dev = 0; dev < BUBT_MAX_DEV; dev++) {
|
|
if (strcmp(bubt_devs[dev].name, dev_name) == 0)
|
|
return &bubt_devs[dev];
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define DEFAULT_BUBT_SRC "tftp"
|
|
|
|
#ifndef DEFAULT_BUBT_DST
|
|
#ifdef CONFIG_MVEBU_SPI_BOOT
|
|
#define DEFAULT_BUBT_DST "spi"
|
|
#elif defined(CONFIG_MVEBU_NAND_BOOT)
|
|
#define DEFAULT_BUBT_DST "nand"
|
|
#elif defined(CONFIG_MVEBU_MMC_BOOT)
|
|
#define DEFAULT_BUBT_DST "mmc"
|
|
else
|
|
#define DEFAULT_BUBT_DST "error"
|
|
#endif
|
|
#endif /* DEFAULT_BUBT_DST */
|
|
|
|
int do_bubt_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
struct bubt_dev *src, *dst;
|
|
size_t image_size;
|
|
char src_dev_name[8];
|
|
char dst_dev_name[8];
|
|
char *name;
|
|
int err;
|
|
|
|
if (argc < 2)
|
|
copy_filename(net_boot_file_name,
|
|
CONFIG_MVEBU_UBOOT_DFLT_NAME,
|
|
sizeof(net_boot_file_name));
|
|
else
|
|
copy_filename(net_boot_file_name, argv[1],
|
|
sizeof(net_boot_file_name));
|
|
|
|
if (argc >= 3) {
|
|
strncpy(dst_dev_name, argv[2], 8);
|
|
} else {
|
|
name = DEFAULT_BUBT_DST;
|
|
strncpy(dst_dev_name, name, 8);
|
|
}
|
|
|
|
if (argc >= 4)
|
|
strncpy(src_dev_name, argv[3], 8);
|
|
else
|
|
strncpy(src_dev_name, DEFAULT_BUBT_SRC, 8);
|
|
|
|
/* Figure out the destination device */
|
|
dst = find_bubt_dev(dst_dev_name);
|
|
if (!dst) {
|
|
printf("Error: Unknown destination \"%s\"\n", dst_dev_name);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!bubt_is_dev_active(dst))
|
|
return -ENODEV;
|
|
|
|
/* Figure out the source device */
|
|
src = find_bubt_dev(src_dev_name);
|
|
if (!src) {
|
|
printf("Error: Unknown source \"%s\"\n", src_dev_name);
|
|
return 1;
|
|
}
|
|
|
|
if (!bubt_is_dev_active(src))
|
|
return -ENODEV;
|
|
|
|
printf("Burning U-BOOT image \"%s\" from \"%s\" to \"%s\"\n",
|
|
net_boot_file_name, src->name, dst->name);
|
|
|
|
image_size = bubt_read_file(src);
|
|
if (!image_size)
|
|
return -EIO;
|
|
|
|
err = bubt_verify(image_size);
|
|
if (err)
|
|
return err;
|
|
|
|
err = bubt_write_file(dst, image_size);
|
|
if (err)
|
|
return err;
|
|
|
|
return 0;
|
|
}
|
|
|
|
U_BOOT_CMD(
|
|
bubt, 4, 0, do_bubt_cmd,
|
|
"Burn a u-boot image to flash",
|
|
"[file-name] [destination [source]]\n"
|
|
"\t-file-name The image file name to burn. Default = flash-image.bin\n"
|
|
"\t-destination Flash to burn to [spi, nand, mmc]. Default = active boot device\n"
|
|
"\t-source The source to load image from [tftp, usb, mmc]. Default = tftp\n"
|
|
"Examples:\n"
|
|
"\tbubt - Burn flash-image.bin from tftp to active boot device\n"
|
|
"\tbubt flash-image-new.bin nand - Burn flash-image-new.bin from tftp to NAND flash\n"
|
|
"\tbubt backup-flash-image.bin mmc usb - Burn backup-flash-image.bin from usb to MMC\n"
|
|
|
|
);
|
|
|