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

[Andrew Davis]

On 4/30/26 3:44 AM, Richard Genoud (TI) wrote:
> From: Prasanth Babu Mantena <p-mantena at 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

> 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 at 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>;