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crypto: ux500 - Cleanup hardware identification 

Don't use SOC specific functions to identify
which crypto hardware we are talking to and use
the ID provided in the module instead.

Signed-off-by: Andreas Westin <andreas.westin@stericsson.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Andreas Westin 2012-05-10 10:14:08 +02:00 committed by Herbert Xu
parent f7329e7162
commit d1cbb1447b
3 changed files with 4 additions and 17 deletions
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10
drivers/crypto/ux500/cryp/cryp.c
View File

@ -37,18 +37,16 @@ int cryp_check(struct cryp_device_data *device_data)
if (NULL == device_data)
return -EINVAL;
if (cpu_is_u8500())
peripheralid2 = CRYP_PERIPHERAL_ID2_DB8500;
else if (cpu_is_u5500())
peripheralid2 = CRYP_PERIPHERAL_ID2_DB5500;
peripheralid2 = readl_relaxed(&device_data->base->periphId2);
if (peripheralid2 != CRYP_PERIPHERAL_ID2_DB8500)
return -EPERM;
/* Check Peripheral and Pcell Id Register for CRYP */
if ((CRYP_PERIPHERAL_ID0 ==
readl_relaxed(&device_data->base->periphId0))
&& (CRYP_PERIPHERAL_ID1 ==
readl_relaxed(&device_data->base->periphId1))
&& (peripheralid2 ==
readl_relaxed(&device_data->base->periphId2))
&& (CRYP_PERIPHERAL_ID3 ==
readl_relaxed(&device_data->base->periphId3))
&& (CRYP_PCELL_ID0 ==

1
drivers/crypto/ux500/cryp/cryp_p.h
View File

@ -41,7 +41,6 @@
#define CRYP_PERIPHERAL_ID1 0x05
#define CRYP_PERIPHERAL_ID2_DB8500 0x28
#define CRYP_PERIPHERAL_ID2_DB5500 0x29
#define CRYP_PERIPHERAL_ID3 0x00
#define CRYP_PCELL_ID0 0x0D

10
drivers/crypto/ux500/hash/hash_core.c
View File

@ -574,15 +574,6 @@ static int hash_init(struct ahash_request *req)
memset(&req_ctx->state, 0, sizeof(struct hash_state));
req_ctx->updated = 0;
if (hash_mode == HASH_MODE_DMA) {
if ((ctx->config.oper_mode == HASH_OPER_MODE_HMAC) &&
cpu_is_u5500()) {
pr_debug(DEV_DBG_NAME " [%s] HMAC and DMA not working "
"on u5500, directing to CPU mode.",
__func__);
req_ctx->dma_mode = false; /* Don't use DMA */
goto out;
}
if (req->nbytes < HASH_DMA_ALIGN_SIZE) {
req_ctx->dma_mode = false; /* Don't use DMA */
@ -604,7 +595,6 @@ static int hash_init(struct ahash_request *req)
}
}
}
out:
return 0;
}