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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
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2
drivers/crypto/Kconfig
View File

@ -765,7 +765,7 @@ config CRYPTO_DEV_CCREE
help
Say 'Y' to enable a driver for the REE interface of the Arm
TrustZone CryptoCell family of processors. Currently the
CryptoCell 712, 710 and 630 are supported.
CryptoCell 713, 712, 710 and 630 are supported.
Choose this if you wish to use hardware acceleration of
cryptographic operations on the system REE.
If unsure say Y.

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