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cmd: mvebu/bubt: Add support for sha512 checksum validation for Armada 3700

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Armada 3700 BootROM supports also images with sha512 checksums and
mox-imager tool [1] generates such bootable images. Without sha512 support
U-Boot bubt command just prints error message:

  Error: Unsupported hash_algorithm_id = 64
  Error: Image header verification failed

This patch adds support for sha512 checksum validation for Armada 3700
images. With it bubt prints:

  Image checksum...OK!

[1] - https://gitlab.nic.cz/turris/mox-boot-builder.git

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Pali Rohár 2022-07-26 16:11:58 +02:00 committed by Stefan Roese
parent 4b9521f242
commit 93c1358bcd
2 changed files with 10 additions and 0 deletions
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1
cmd/mvebu/Kconfig
View File

@ -4,6 +4,7 @@ depends on ARCH_MVEBU
config CMD_MVEBU_BUBT
bool "bubt"
select SHA256 if ARMADA_3700
select SHA512 if ARMADA_3700
help
bubt - Burn a u-boot image to flash
For details about bubt command please see the documentation

9
cmd/mvebu/bubt.c
View File

@ -26,6 +26,7 @@
#endif
#include <u-boot/sha1.h>
#include <u-boot/sha256.h>
#include <u-boot/sha512.h>
#if defined(CONFIG_ARMADA_8K)
#define MAIN_HDR_MAGIC 0xB105B002
@ -566,8 +567,10 @@ static int check_image_header(void)
int image_num;
u8 hash_160_output[SHA1_SUM_LEN];
u8 hash_256_output[SHA256_SUM_LEN];
u8 hash_512_output[SHA512_SUM_LEN];
sha1_context hash1_text;
sha256_context hash256_text;
sha512_context hash512_text;
u8 *hash_output;
u32 hash_algorithm_id;
u32 image_size_to_hash;
@ -637,6 +640,12 @@ static int check_image_header(void)
sha256_finish(&hash256_text, hash_256_output);
hash_output = hash_256_output;
break;
case SHA512_SUM_LEN:
sha512_starts(&hash512_text);
sha512_update(&hash512_text, buff, image_size_to_hash);
sha512_finish(&hash512_text, hash_512_output);
hash_output = hash_512_output;
break;
default:
printf("Error: Unsupported hash_algorithm_id = %d\n",
hash_algorithm_id);