Re: [PATCH 19/20] arm: dts: k3-j7200: Remove background firewall on DDR

["Kumar, Udit" <u-kumar1@ti.com>]

On 4/30/2026 11:00 PM, Andrew Davis wrote:
> On 4/30/26 3:44 AM, Richard Genoud (TI) wrote:
>> From: Prasanth Babu Mantena <p-mantena@ti.com>
>>
>> With updated TIFS version tag v11.02.06, the background firewall
>> for DDR firewalls are applied by the TIFS. This removes the
>> dependency of applying firewalls through binman.
>>
> 
> Does this then create a dependency on using a TIFS firmware
> equal or newer than v11.02.06 when using a new U-Boot?
> 
> Andrew
> 

I am not sure, how this will behave but we have to keep backward and
forward compatibility
>> Remove background firewall on the whole DDR, as this
>> background firewall is applied by the TIFS init for j7200
>> and j784s4. Modify for j7200 only, as there are no firewalls applied
>> for j784s4 from SPL.
>>
>> Signed-off-by: Prasanth Babu Mantena <p-mantena@ti.com>
>> ---
>>   arch/arm/dts/k3-j7200-binman.dtsi | 14 --------------
>>   1 file changed, 14 deletions(-)
>>
>> diff --git a/arch/arm/dts/k3-j7200-binman.dtsi b/arch/arm/dts/k3-
>> j7200-binman.dtsi
>> index b4e0ce8bfcf2..c2b86339d593 100644
>> --- a/arch/arm/dts/k3-j7200-binman.dtsi
>> +++ b/arch/arm/dts/k3-j7200-binman.dtsi
>> @@ -294,13 +294,6 @@
>>                               region = <2>;
>>                           };
>>   -                        firewall-4762-0 {
>> -                            /* nb_slv2__mem0 Background Firewall - 0 */
>> -                            insert-template = <&firewall_bg_3>;
>> -                            id = <4762>;
>> -                            region = <0>;
>> -                        };
>> -
>>                           firewall-4762-1 {
>>                               /* nb_slv2__mem0 Foreground Firewall */
>>                               insert-template =
>> <&firewall_armv8_optee_fg>;
>> @@ -308,13 +301,6 @@
>>                               region = <1>;
>>                           };
>>   -                        firewall-4763-0 {
>> -                            /* nb_slv3__mem0 Background Firewall - 0 */
>> -                            insert-template = <&firewall_bg_3>;
>> -                            id = <4763>;
>> -                            region = <0>;
>> -                        };
>> -
>>                           firewall-4763-1 {
>>                               /* nb_slv3__mem0 Foreground Firewall */
>>                               insert-template =
>> <&firewall_armv8_optee_fg>;
>