[U-Boot] [PATCH 0/2] Fix CAAM for TrustZone enable for warp7
Bryan O'Donoghue
bryan.odonoghue at linaro.org
Wed Jan 24 19:41:52 UTC 2018
On 24/01/18 17:41, Auer, Lukas wrote:
> Thanks for adding me to the CC list.
> I have experienced the same thing regarding the dec0 registers.
> However, I don't understand why you want to detect secure mode in the
> kernel driver to skip RNG instantiation instead of instantiating all
> RNG state handles in the u-boot driver.
That's what we are doing though.
This set instantiates everything in u-boot and then detects and skips in
the kernel if-and-only if
1. Trust zone is detected
2. It looks to the Linux CAAM driver as if u-boot has initialised the h/w
For #2 I actually have to variants
1. Which passes a DT parameter which indicates the kernel should skip
RNG init
2. A module parameter which indicates the kernel should skip rng init
Could we discuss the kernel changes in the kernel thread ?
I believe we agree the u-boot side is right ?
More information about the U-Boot
mailing list