diff options
| author | Ye Li <ye.li@nxp.com> | 2022-09-28 15:49:02 +0530 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2022-10-21 11:54:13 +0200 |
| commit | eda25c11b887ae952da2205ed1c8db751dbf4d11 (patch) | |
| tree | 410b947f12a829ec5fb7ea03064585d82e1a7a41 /drivers/crypto | |
| parent | 7fe2408b829faeaf51101a8c9b1bc0c3957606c3 (diff) | |
crypto/fsl: fsl_rsa: Fix dcache issue in the driver
issue:
CAAM fails with key error when perform Modular Exponentiation
using PKHA Block in CAAM
Fix:
add flush and invalidate dcache for keys, signature
and output decrypted data processed by CAAM.
Fixes: 34276478f7 (DM: crypto/fsl - Add Freescale rsa DM driver)
Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Gaurav Jain <gaurav.jain@nxp.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/fsl/fsl_rsa.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/crypto/fsl/fsl_rsa.c b/drivers/crypto/fsl/fsl_rsa.c index 897ee855ead..335b7fe25ac 100644 --- a/drivers/crypto/fsl/fsl_rsa.c +++ b/drivers/crypto/fsl/fsl_rsa.c @@ -6,6 +6,7 @@ #include <config.h> #include <common.h> +#include <cpu_func.h> #include <dm.h> #include <log.h> #include <asm/types.h> @@ -36,12 +37,21 @@ int fsl_mod_exp(struct udevice *dev, const uint8_t *sig, uint32_t sig_len, inline_cnstr_jobdesc_pkha_rsaexp(desc, &pkin, out, sig_len); + flush_dcache_range((ulong)sig, (ulong)sig + sig_len); + flush_dcache_range((ulong)prop->modulus, (ulong)(prop->modulus) + keylen); + flush_dcache_range((ulong)prop->public_exponent, + (ulong)(prop->public_exponent) + prop->exp_len); + flush_dcache_range((ulong)desc, (ulong)desc + (sizeof(uint32_t) * MAX_CAAM_DESCSIZE)); + flush_dcache_range((ulong)out, (ulong)out + sig_len); + ret = run_descriptor_jr(desc); if (ret) { debug("%s: RSA failed to verify: %d\n", __func__, ret); return -EFAULT; } + invalidate_dcache_range((ulong)out, (ulong)out + sig_len); + return 0; } |