Re: [U-Boot] [PATCH 1/1] Secure Boot: Set NPSWA_EN bit for SNVS state transition to happen in EL2.

On 02/15/2017 04:23 AM, Udit Agarwal wrote:

For Layerscape chasis Gen 3 based platforms, during PPA execution exception level transition happens from EL3 to EL2. While in EL2 state SNVS state doesnot changes from secure to non secure state in case of ESBC failure.

So to enable the SNVS transition in EL2 state, NPSWA_EN bit has to be set when in EL3 state.

Wouldn't this be better implemented in PPA firmware?

York