Prior instantiating RNG we have to ensure if the CAAM job rings are
available. Avoid hardcoded job ring max size and use the definition at
fsl_sec.h
Signed-off-by: Breno Lima <breno.lima@nxp.com>
Reviewed-by: Ye Li <ye.li@nxp.com>
(cherry picked from commit b81379d3d2228760cc061a56c3c610b4e9fa9783)
Prior calling sec_in32() we have to ensure CAAM clock is enabled, the
function sec_in32() is reading CAAM registers and if CAAM clock is disabled
the system will hang.
Signed-off-by: Breno Lima <breno.lima@nxp.com>
Reviewed-by: Ye Li <ye.li@nxp.com>
(cherry picked from commit c4da7540e7548f36c6ad90292db7057b828a7956)
The CAAM output ring size register offset is currently defined in fsl_sec.h
as FSL_CAAM_ORSR_JRa_OFFSET, use this definition to avoid hardcoded value in
i.MX common code.
Signed-off-by: Breno Lima <breno.lima@nxp.com>
Reviewed-by: Ye Li <ye.li@nxp.com>
(cherry picked from commit 9d381708210270a1cf9bf25924c8932c436967e8)
This code was originally developed by Raul Cardenas <raul.casas@nxp.com>
and modified to be applied in U-Boot imx_v2017.03.
More information about the initial submission can be seen
in the link below:
https://lists.denx.de/pipermail/u-boot/2016-February/245273.html
i.MX7D has an a protection feature for Manufacturing process.
This feature uses asymmetric encryption to sign and verify
authenticated software handled between parties. This command
enables the use of such feature.
The private key is unique and generated once per device.
And it is stored in secure memory and only accessible by CAAM.
Therefore, the public key generation and signature functions
are the only functions available for the user.
The manufacturing-protection authentication process can be used to
authenticate the chip to the OEM's server.
Command usage:
Print the public key for the device.
- mfgprot pubk
Generates Signature over given data.
- mfgprot sign <data_address> <data_size>
Signed-off-by: Raul Ulises Cardenas <raul.casas@nxp.com>
Signed-off-by: Breno Lima <breno.lima@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Ye Li <ye.li@nxp.com>
(cherry picked from commit db2dbf622d3c711b2fbd85e6814992e023479dad)
Breno Lima