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| author | LEROY Christophe <christophe.leroy@c-s.fr> | 2015-04-17 16:32:05 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-04-21 09:14:41 +0800 |
| commit | 21590888490ce2a46ff4703b1503f562f4a59571 (patch) | |
| tree | 294bb6fe792885dda4fa1074d9b46e2d8e629fdc | |
| parent | 5b841a65dcae3ac76dc34e56c948c629de48c1a3 (diff) | |
| download | linux-21590888490ce2a46ff4703b1503f562f4a59571.tar.gz linux-21590888490ce2a46ff4703b1503f562f4a59571.tar.bz2 linux-21590888490ce2a46ff4703b1503f562f4a59571.zip | |
crypto: talitos - Add a feature to tag SEC1
We add a new feature in the features field, to mark compatible
"fsl,sec1.0"
We also define a helper function called has_ftr_sec1() to help
functions quickly determine if they are running on SEC1 or SEC2+.
When only SEC1 or SEC2 is compiled in, has_ftr_sec1() return
trivial corresponding value. If both are compiled in, feature
field is checked.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | drivers/crypto/talitos.c | 3 | ||||
| -rw-r--r-- | drivers/crypto/talitos.h | 17 |
2 files changed, 20 insertions, 0 deletions
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index bca6dedb357d..db950236183d 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -2709,6 +2709,9 @@ static int talitos_probe(struct platform_device *ofdev) TALITOS_FTR_SHA224_HWINIT | TALITOS_FTR_HMAC_OK; + if (of_device_is_compatible(np, "fsl,sec1.0")) + priv->features |= TALITOS_FTR_SEC1; + priv->chan = kzalloc(sizeof(struct talitos_channel) * priv->num_channels, GFP_KERNEL); if (!priv->chan) { diff --git a/drivers/crypto/talitos.h b/drivers/crypto/talitos.h index f078da1d387a..b0bdb4ec79fc 100644 --- a/drivers/crypto/talitos.h +++ b/drivers/crypto/talitos.h @@ -156,6 +156,23 @@ extern int talitos_submit(struct device *dev, int ch, struct talitos_desc *desc, #define TALITOS_FTR_HW_AUTH_CHECK 0x00000002 #define TALITOS_FTR_SHA224_HWINIT 0x00000004 #define TALITOS_FTR_HMAC_OK 0x00000008 +#define TALITOS_FTR_SEC1 0x00000010 + +/* + * If both CONFIG_CRYPTO_DEV_TALITOS1 and CONFIG_CRYPTO_DEV_TALITOS2 are + * defined, we check the features which are set according to the device tree. + * Otherwise, we answer true or false directly + */ +static inline bool has_ftr_sec1(struct talitos_private *priv) +{ +#if defined(CONFIG_CRYPTO_DEV_TALITOS1) && defined(CONFIG_CRYPTO_DEV_TALITOS2) + return priv->features & TALITOS_FTR_SEC1 ? true : false; +#elif defined(CONFIG_CRYPTO_DEV_TALITOS1) + return true; +#else + return false; +#endif +} /* * TALITOS_xxx_LO addresses point to the low data bits (32-63) of the register |