[U-Boot] Questions about loading U-Boot from ATF

[U-Boot] Questions about loading U-Boot from ATF

[York Sun]

Tom,

Can you help me (or point me to the proper persons) to understand the
long term flow of booting ARMv8 U-Boot with ATF? We are trying to make
changes. As you may know, we have been booting U-Boot for NXP ARMv8
platforms from EL3 and drop to EL2 with an in-house ATF-compatible
monitor. I have seen some boards in U-Boot using SPL to load ATF. I want
to see a flow of booting ATF first, then load U-Boot as BL33 image. Has
any board done that?

York

[U-Boot] Questions about loading U-Boot from ATF

[Tom Rini]

On Thu, Aug 02, 2018 at 09:07:15PM +0000, York Sun wrote:

> Tom,
> 
> Can you help me (or point me to the proper persons) to understand the
> long term flow of booting ARMv8 U-Boot with ATF? We are trying to make
> changes. As you may know, we have been booting U-Boot for NXP ARMv8
> platforms from EL3 and drop to EL2 with an in-house ATF-compatible
> monitor. I have seen some boards in U-Boot using SPL to load ATF. I want
> to see a flow of booting ATF first, then load U-Boot as BL33 image. Has
> any board done that?

With a quick grep around, I think at least the amlogic and hisilicon
platforms do this.

-- 
Tom
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