@@ -41,6 +41,13 @@ static bool meson_cipher_need_fallback_sg(struct skcipher_request *areq,
static bool meson_cipher_need_fallback(struct skcipher_request *areq)
{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq);
+ struct meson_cipher_tfm_ctx *op = crypto_skcipher_ctx(tfm);
+ struct meson_dev *mc = op->mc;
+
+ if (op->keymode == DESC_MODE_AES_192 && !mc->pdata->support_192bit_key)
+ return true;
+
if (areq->cryptlen == 0)
return true;
@@ -206,6 +206,7 @@ static const struct meson_pdata meson_gxl_pdata = {
.descs_reg = 0x0,
.status_reg = 0x4,
.setup_desc_cnt = 3,
+ .support_192bit_key = true,
};
static const struct of_device_id meson_crypto_of_match_table[] = {
@@ -97,11 +97,13 @@ struct meson_flow {
* @reg_descs: offset to descriptors register
* @reg_status: offset to status register
* @setup_desc_cnt: number of setup descriptor to configure.
+ * @support_192bit_key: indicates whether platform support AES 192-bit key
*/
struct meson_pdata {
u32 descs_reg;
u32 status_reg;
u32 setup_desc_cnt;
+ bool support_192bit_key;
};
/*
Unforunately, not all Amlogic SoC's have a 192-bit key support for AES algo. In this case, use fallback. Signed-off-by: Alexey Romanov <avromanov@salutedevices.com> --- drivers/crypto/amlogic/amlogic-gxl-cipher.c | 7 +++++++ drivers/crypto/amlogic/amlogic-gxl-core.c | 1 + drivers/crypto/amlogic/amlogic-gxl.h | 2 ++ 3 files changed, 10 insertions(+)