Re: [PATCH 2/5] configs: am62a: move stack and heap to HSM RAM

Tom Rini
2023-01-11T02:18:00Z

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On Fri, Dec 23, 2022 at 07:15:22PM -0600, Bryan Brattlof wrote:

> Texas Instruments has begun enabling security setting on the SoCs they
> produce to instruct ROM and TIFS to begin protecting the Security
> Management Subsystem (SMS) from other binaries we load into the chip by
> default.
>
> One way ROM does this is by enabling firewalls to protect the OCSRAM
> region it's using during bootup. Only after TIFS has started (and had
> time to disable the OCSRAM firewall region) will we have write access to
> the region.
>
> This means we will need to move the stack & heap from OCSRAM to HSM RAM
> and reduce the size of BSS and the SPL to allow it to fit properly.
>
> Signed-off-by: Bryan Brattlof <bb@ti.com>

Applied to u-boot/master, thanks!

--
Tom

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