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crypto: rockchip: v1: require update data length 4-byte aligned 

Only the last update data length can be any length.

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Change-Id: I4ee6c596575306799f562433e83323d805b59d32
This commit is contained in:
Joseph Chen 2019-12-09 20:08:48 +08:00
parent da2d9dd013
commit fb5bc6bbf9
1 changed files with 6 additions and 0 deletions
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6
drivers/crypto/rockchip/crypto_v1.c
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@ -17,6 +17,7 @@
struct rockchip_crypto_priv {
struct rk_crypto_reg *reg;
struct clk clk;
sha_context *ctx;
u32 frequency;
char *clocks;
u32 nclocks;
@ -47,6 +48,7 @@ static int rockchip_crypto_sha_init(struct udevice *dev, sha_context *ctx)
return -EINVAL;
}
priv->ctx = ctx;
priv->length = 0;
writel(ctx->length, &reg->crypto_hash_msg_len);
if (ctx->algo == CRYPTO_SHA256) {
@ -102,6 +104,10 @@ static int rockchip_crypto_sha_update(struct udevice *dev,
return -EINVAL;
priv->length += len;
if ((priv->length != priv->ctx->length) && !IS_ALIGNED(len, 4)) {
printf("Crypto-v1: require update data length 4-byte aligned\n");
return -EINVAL;
}
/* Must flush dcache before crypto DMA fetch data region */
aligned_input = round_down((ulong)input, CONFIG_SYS_CACHELINE_SIZE);