[PATCH 0/2] add support for hs bootflows on am62 devices
Tom Rini
trini at konsulko.com
Thu Mar 16 19:15:47 CET 2023
On Thu, Mar 16, 2023 at 04:05:06PM +0530, Kamlesh Gurudasani wrote:
> Bryan Brattlof <bb at ti.com> writes:
>
> > Hi Kamlesh!
> >
> > On March 2, 2023 thus sayeth kamlesh at ti.com:
> >> From: Kamlesh Gurudasani <kamlesh at 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 at 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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