Use DM_HASH to perform hashing operations if supported. Thus either SW or HW-assisted hashing could be leveraged.

Signed-off-by: Chia-Wei Wang chiawei_wang@aspeedtech.com --- lib/hash-checksum.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+)

diff --git a/lib/hash-checksum.c b/lib/hash-checksum.c index d732ecc38f..f30873db38 100644 --- a/lib/hash-checksum.c +++ b/lib/hash-checksum.c @@ -10,6 +10,10 @@ #include <linux/errno.h> #include <asm/unaligned.h> #include <hash.h> +#if defined(CONFIG_DM_HASH) +#include <dm.h> +#include <u-boot/hash.h> +#endif #else #include "fdt_host.h" #endif @@ -20,6 +24,38 @@ int hash_calculate(const char *name, const struct image_region region[], int region_count, uint8_t *checksum) { +#if !defined(USE_HOSTCC) && defined(CONFIG_DM_HASH) + int i, rc; + enum HASH_ALGO hash_algo; + struct udevice *dev; + void *ctx; + + rc = uclass_get_device(UCLASS_HASH, 0, &dev); + if (rc) { + debug("failed to get hash device, rc=%d\n", rc); + return -1; + } + + hash_algo = hash_algo_lookup_by_name(name); + if (hash_algo == HASH_ALGO_INVALID) { + debug("Unsupported hash algorithm\n"); + return -1; + }; + + rc = hash_init(dev, hash_algo, &ctx); + if (rc) + return rc; + + for (i = 0; i < region_count; i++) { + rc = hash_update(dev, ctx, region[i].data, region[i].size); + if (rc) + return rc; + } + + rc = hash_finish(dev, ctx, checksum); + if (rc) + return rc; +#else struct hash_algo *algo; int ret = 0; void *ctx; @@ -47,6 +83,7 @@ int hash_calculate(const char *name, ret = algo->hash_finish(algo, ctx, checksum, algo->digest_size); if (ret) return ret; +#endif

return 0; }