how to power on CAAM in OPTEE

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how to power on CAAM in OPTEE

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jiankang
Contributor III

hello,

I'm working on imx8 serial products.

I try to build OPTEE from branch:lf-5.10.y_2.0.0

but TEE boot up failed with the error below:

UE/TC:0 0 sc_seco_start_rng:101 Unable to start RNG or get RNG status

E/TC:0 0 sc_seco_start_rng:102 sc_error code is: 7

E/TC:0 0 caam_hal_rng_instantiated:20 RNG instantiation failed

E/TC:0 0 crypto_driver_init:56 caam_rng_init() (1)

E/TC:0 0 crypto_driver_init:172 CAAM Driver initialization (0xffff0000)

E/TC:0 0 Panic at core/drivers/crypto/caam/caam_ctrl.c:173 <crypto_driver_init>

E/TC:0 0 TEE load address @ 0xfe000000

E/TC:0 0 Call stack:

E/TC:0 0 0x00000000fe008f50+

error code 7 indicates CAAM didn't power on.

so how can I power on CAAM in OPTEE or somewhere else ?

 

thanks a lot.

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igorpadykov
NXP Employee
NXP Employee

Hi Jiankang

 

one can try to use Linux 5.10.9_1.0.0 (Documentation) and follow sect.5.6.10 OP-TEE enablement

IMX_YOCTO_PROJECT_USERS_GUIDE.pdf included in documentation package.

 

Best regards
igor

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