crypto: sun8i-ce - handle endianness of t_common_ctl

[ Upstream commit 87f34260f5e09a4578132ad1c05aef2d707dd4bf ]

t_common_ctl is LE32 so we need to convert its value before using it.
This value is only used on H6 (ignored on other SoCs) and not handling
the endianness cause failure on xRNG/hashes operations on H6 when running BE.

Fixes: 06f751b61329 ("crypto: allwinner - Add sun8i-ce Crypto Engine")
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c
index b957061424a1f735f6640ed6919e766851c5298d..8f3d6d31da52f42f1a6fedef74318b6d793d57b5 100644 (file)
--- a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c
+++ b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c
@@ -120,7 +120,10 @@ int sun8i_ce_run_task(struct sun8i_ce_dev *ce, int flow, const char *name)
        /* Be sure all data is written before enabling the task */
        wmb();
 
-       v = 1 | (ce->chanlist[flow].tl->t_common_ctl & 0x7F) << 8;
+       /* Only H6 needs to write a part of t_common_ctl along with "1", but since it is ignored
+        * on older SoCs, we have no reason to complicate things.
+        */
+       v = 1 | ((le32_to_cpu(ce->chanlist[flow].tl->t_common_ctl) & 0x7F) << 8);
        writel(v, ce->base + CE_TLR);
        mutex_unlock(&ce->mlock);