The CAAM driver in u-boot will use JR0 by default, but for
imx8q, both JR0 and JR1 are assigned to SECO and A core
should never access them.
Power on the JR3 in this patchset and use it to complete
the CAAM operations for imx8q.
Test: CAAM self test cases pass for imx8q.
Change-Id: Ie3d77d1f2910e7f4c257c797c12b5c8a30ad936a
Signed-off-by: Ji Luo <ji.luo@nxp.com>
The TRNG as used in RNG4, used in CAAM has a documentation issue. The
effect is that it is possible that the entropy used to instantiate the
DRBG may be old entropy, rather than newly generated entropy. There is
proper programming guidance, but it is not in the documentation.
Signed-off-by: Aymen Sghaier <aymen.sghaier@nxp.com>
Blob buffer size is 48 bytes larger than the plain text buffer,
set correct range when flush the dcache. Also use cache aligned
buffer for the blob/plain_text to avoid failure in CAAM.
Change-Id: I3b377cfeb8f5bd9c76233827b2c9c7bd0d788c9b
Signed-off-by: Ji Luo <ji.luo@nxp.com>
The following reasons lead to instantiate the TRNG into U-Boot/SPL:
- On some i.MX platforms Linux Kernel could not instantiate RNG
- RNG could be used/needed by M4/M0 cores before Kernel stage
- Having the RNG instantiation implemented only once for
almost i.MX platforms
Signed-off-by: Aymen Sghaier <aymen.sghaier@nxp.com>
Add the fsl CAAM driver and new commands to implement DEK blob operations,
like "caam genblob" to generate encrypted blob and "caam decap" to output
orignal plain data.
Signed-off-by: Ye Li <ye.li@nxp.com>
Ji Luo
Aymen Sghaier
Ye Li