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crypto: ccree - add support for CryptoCell 713

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Add support for Arm TrustZone CryptoCell 713.
Note that this patch just enables using a 713 in backwards compatible mode
to 712. Newer 713 specific features will follow.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Gilad Ben-Yossef
2018-10-29 09:50:12 +00:00
committed by Herbert Xu
parent 913a3aa07d
commit e40fdb500b
3 changed files with 19 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
drivers/crypto/ccree/cc_driver.c
View File

@@ -43,6 +43,10 @@ struct cc_hw_data {
/* Hardware revisions defs. */
static const struct cc_hw_data cc713_hw = {
.name = "713", .rev = CC_HW_REV_713
};
static const struct cc_hw_data cc712_hw = {
.name = "712", .rev = CC_HW_REV_712, .sig = 0xDCC71200U
};
@@ -56,6 +60,7 @@ static const struct cc_hw_data cc630p_hw = {
};
static const struct of_device_id arm_ccree_dev_of_match[] = {
{ .compatible = "arm,cryptocell-713-ree", .data = &cc713_hw },
{ .compatible = "arm,cryptocell-712-ree", .data = &cc712_hw },
{ .compatible = "arm,cryptocell-710-ree", .data = &cc710_hw },
{ .compatible = "arm,cryptocell-630p-ree", .data = &cc630p_hw },
@@ -297,15 +302,17 @@ static int init_cc_resources(struct platform_device *plat_dev)
return rc;
}
/* Verify correct mapping */
signature_val = cc_ioread(new_drvdata, new_drvdata->sig_offset);
if (signature_val != hw_rev->sig) {
dev_err(dev, "Invalid CC signature: SIGNATURE=0x%08X != expected=0x%08X\n",
signature_val, hw_rev->sig);
rc = -EINVAL;
goto post_clk_err;
if (hw_rev->rev <= CC_HW_REV_712) {
/* Verify correct mapping */
signature_val = cc_ioread(new_drvdata, new_drvdata->sig_offset);
if (signature_val != hw_rev->sig) {
dev_err(dev, "Invalid CC signature: SIGNATURE=0x%08X != expected=0x%08X\n",
signature_val, hw_rev->sig);
rc = -EINVAL;
goto post_clk_err;
}
dev_dbg(dev, "CC SIGNATURE=0x%08X\n", signature_val);
}
dev_dbg(dev, "CC SIGNATURE=0x%08X\n", signature_val);
/* Display HW versions */
dev_info(dev, "ARM CryptoCell %s Driver: HW version 0x%08X, Driver version %s\n",

5
drivers/crypto/ccree/cc_driver.h
View File

@@ -36,12 +36,13 @@
extern bool cc_dump_desc;
extern bool cc_dump_bytes;
#define DRV_MODULE_VERSION "4.0"
#define DRV_MODULE_VERSION "5.0"
enum cc_hw_rev {
CC_HW_REV_630 = 630,
CC_HW_REV_710 = 710,
CC_HW_REV_712 = 712
CC_HW_REV_712 = 712,
CC_HW_REV_713 = 713
};
#define CC_COHERENT_CACHE_PARAMS 0xEEE