diff options
Diffstat (limited to 'drivers/crypto/omap-aes.c')
| -rw-r--r-- | drivers/crypto/omap-aes.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c index 54925d98b12f..35521b8b6886 100644 --- a/drivers/crypto/omap-aes.c +++ b/drivers/crypto/omap-aes.c @@ -63,6 +63,7 @@ #define AES_REG_CTRL_DIRECTION (1 << 2) #define AES_REG_CTRL_INPUT_READY (1 << 1) #define AES_REG_CTRL_OUTPUT_READY (1 << 0) +#define AES_REG_CTRL_MASK GENMASK(24, 2) #define AES_REG_DATA_N(dd, x) ((dd)->pdata->data_ofs + ((x) * 0x04)) @@ -254,7 +255,7 @@ static int omap_aes_write_ctrl(struct omap_aes_dev *dd) { unsigned int key32; int i, err; - u32 val, mask = 0; + u32 val; err = omap_aes_hw_init(dd); if (err) @@ -274,17 +275,13 @@ static int omap_aes_write_ctrl(struct omap_aes_dev *dd) val = FLD_VAL(((dd->ctx->keylen >> 3) - 1), 4, 3); if (dd->flags & FLAGS_CBC) val |= AES_REG_CTRL_CBC; - if (dd->flags & FLAGS_CTR) { + if (dd->flags & FLAGS_CTR) val |= AES_REG_CTRL_CTR | AES_REG_CTRL_CTR_WIDTH_128; - mask = AES_REG_CTRL_CTR | AES_REG_CTRL_CTR_WIDTH_MASK; - } + if (dd->flags & FLAGS_ENCRYPT) val |= AES_REG_CTRL_DIRECTION; - mask |= AES_REG_CTRL_CBC | AES_REG_CTRL_DIRECTION | - AES_REG_CTRL_KEY_SIZE; - - omap_aes_write_mask(dd, AES_REG_CTRL(dd), val, mask); + omap_aes_write_mask(dd, AES_REG_CTRL(dd), val, AES_REG_CTRL_MASK); return 0; } |