[PATCH 0/2] add support for hs bootflows on am62 devices
Kamlesh Gurudasani
kamlesh at ti.com
Thu Mar 16 11:35:06 CET 2023
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.
Thanks.
~Kamlesh
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