diff options
Diffstat (limited to 'drivers/firmware/xilinx')
| -rw-r--r-- | drivers/firmware/xilinx/zynqmp.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index ecc339d846de..1dea880b2397 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -707,6 +707,30 @@ static int zynqmp_pm_set_requirement(const u32 node, const u32 capabilities, qos, ack, NULL); } +/** + * zynqmp_pm_aes - Access AES hardware to encrypt/decrypt the data using + * AES-GCM core. + * @address: Address of the AesParams structure. + * @out: Returned output value + * + * Return: Returns status, either success or error code. + */ +static int zynqmp_pm_aes_engine(const u64 address, u32 *out) +{ + u32 ret_payload[PAYLOAD_ARG_CNT]; + int ret; + + if (!out) + return -EINVAL; + + ret = zynqmp_pm_invoke_fn(PM_SECURE_AES, upper_32_bits(address), + lower_32_bits(address), + 0, 0, ret_payload); + *out = ret_payload[1]; + + return ret; +} + static const struct zynqmp_eemi_ops eemi_ops = { .get_api_version = zynqmp_pm_get_api_version, .get_chipid = zynqmp_pm_get_chipid, @@ -730,6 +754,7 @@ static const struct zynqmp_eemi_ops eemi_ops = { .set_requirement = zynqmp_pm_set_requirement, .fpga_load = zynqmp_pm_fpga_load, .fpga_get_status = zynqmp_pm_fpga_get_status, + .aes = zynqmp_pm_aes_engine, }; /** |