Re: [PATCH 0/2] add support for hs bootflows on am62 devices

[Tom Rini <trini@konsulko.com>]

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On Thu, Mar 16, 2023 at 04:05:06PM +0530, Kamlesh Gurudasani wrote:
> Bryan Brattlof <bb@ti.com> writes:
> 
> > Hi Kamlesh!
> >
> > On March  2, 2023 thus sayeth kamlesh@ti.com:
> >> From: Kamlesh Gurudasani <kamlesh@ti.com>
> >> 
> >> Add support for high security bootflow on am62 devices.
> >> 
> >> On HS devices, ROM and TIFS will protect the RAM regions with
> >> firewalls. This means the wakeup domain's SPL will need to move the
> >> stack and heap to HSM RAM to ensure it stays within its allotted
> >> memory regions.
> >> 
> >> Kamlesh Gurudasani (2):
> >>   arm: mach-k3: am62: move scratch board area to HSM RAM
> >>   configs: am62: move stack and heap to HSM RAM
> >> 
> >>  arch/arm/mach-k3/include/mach/am62_hardware.h |  3 +--
> >>  configs/am62x_evm_r5_defconfig                | 16 +++++++++++-----
> >>  2 files changed, 12 insertions(+), 7 deletions(-)
> >
> > Thanks for getting this fixed! Does TIFS drop the On Chip SRAM firewall 
> > completely once it's started? or only for the r5?
> >
> > Reviewed-by: Bryan Brattlof <bb@ti.com>
> >
> > ~Bryan
> Hi Tom,
> 
> Could you please review and merge this patches as these are bug fixes to
> get HS devices working.

Is this a regression fix vs v2023.01 or new feature support? Thanks.

-- 
Tom

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