use caam in iMX8QM product

[jiankang]

Hello,

I'm working on iMX8QM product.

I need to use CAAM to derive key.

and I'm working on uboot of version :origin/lf_v2021.04.

As I checked, it doesn't support CAAM for iMX8 serial product.

I tried to apply previous patch to enable spl to access JR3.(as I heared JR1/ JR2 are used for seco)

but it failed to power on and initial step. with the codes below:

sc_pm_set_resource_power_mode(-1, SC_R_CAAM_JR3, SC_PM_PW_MODE_ON);

sc_pm_set_resource_power_mode(-1, SC_R_CAAM_JR3_OUT, SC_PM_PW_MODE_ON);

please help to check how to enable CAAM for iMX8 ?

BRs.

[igorpadykov]

Hi Jiankang

for caam usage one can look at AN12554 Demo Application to Generate Red/Black Blobs Using CAAM and Encrypt/Decrypt Data

https://source.codeaurora.org/external/imxsupport/imx_sec_apps/tree/demo-caam-blobs

Best regards
igor

[jiankang]

is there any document about how to config and use CAAM in SPL/Uboot stage ?

for imx8 serial products.

[igorpadykov]

>is there any document about how to config and use CAAM in SPL/Uboot stage ?

I am afraid not, sorry.

Best regards
igor