diff options
| author | Gilad Ben-Yossef <gilad@benyossef.com> | 2018-02-19 15:51:23 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-03-02 17:03:16 +0100 |
| commit | 27b3b22dd98caef023cbaa4871b356e4596a81af (patch) | |
| tree | caeedee7405b5b9e1a885bf2b607aedee64c2534 /drivers/crypto/ccree/cc_sram_mgr.c | |
| parent | dt-bindings: Add DT bindings for ccree 710 and 630p (diff) | |
| download | linux-27b3b22dd98caef023cbaa4871b356e4596a81af.tar.xz linux-27b3b22dd98caef023cbaa4871b356e4596a81af.zip | |
crypto: ccree - add support for older HW revs
Add support for the legacy CryptoCell 630 and 710 revs.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/ccree/cc_sram_mgr.c')
| -rw-r--r-- | drivers/crypto/ccree/cc_sram_mgr.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/crypto/ccree/cc_sram_mgr.c b/drivers/crypto/ccree/cc_sram_mgr.c index fed877d35d3e..c8c276f6dee9 100644 --- a/drivers/crypto/ccree/cc_sram_mgr.c +++ b/drivers/crypto/ccree/cc_sram_mgr.c @@ -33,6 +33,19 @@ void cc_sram_mgr_fini(struct cc_drvdata *drvdata) int cc_sram_mgr_init(struct cc_drvdata *drvdata) { struct cc_sram_ctx *ctx; + dma_addr_t start = 0; + struct device *dev = drvdata_to_dev(drvdata); + + if (drvdata->hw_rev < CC_HW_REV_712) { + /* Pool starts after ROM bytes */ + start = (dma_addr_t)cc_ioread(drvdata, + CC_REG(HOST_SEP_SRAM_THRESHOLD)); + + if ((start & 0x3) != 0) { + dev_err(dev, "Invalid SRAM offset %pad\n", &start); + return -EINVAL; + } + } /* Allocate "this" context */ ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); @@ -40,6 +53,7 @@ int cc_sram_mgr_init(struct cc_drvdata *drvdata) if (!ctx) return -ENOMEM; + ctx->sram_free_offset = start; drvdata->sram_mgr_handle = ctx; return 0; |