On 6/16/21 11:38 AM, Aswath Govindraju wrote:
> The final 128KB in SRAM is reserved by default for DMSC-lite code and
> secure proxy communication buffer. The memory region used for DMSC-lite
> code can be optionally freed up by secure firmware API[1]. However, the
> buffer for secure proxy communication is not configurable. This default
> hardware configuration is unique for AM64.
>
> Therefore, indicate the area reserved for DMSC-lite code and secure proxy
> communication buffer in the oc_sram device tree node.
>
> [1] -
> http://downloads.ti.com/tisci/esd/latest/6_topic_user_guides/security_handover.html#triggering-security-handover
>
> Signed-off-by: Aswath Govindraju <a-govindr...@ti.com>
Acked-by: Suman Anna <s-a...@ti.com>
You may actually want to reorder so that this patch is first.
regards
Suman
> ---
> arch/arm/dts/k3-am64-main.dtsi | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/arch/arm/dts/k3-am64-main.dtsi b/arch/arm/dts/k3-am64-main.dtsi
> index f68b969a2e9b..c5af2ffb8ee1 100644
> --- a/arch/arm/dts/k3-am64-main.dtsi
> +++ b/arch/arm/dts/k3-am64-main.dtsi
> @@ -16,6 +16,14 @@
> tfa-sram@1c0000 {
> reg = <0x1c0000 0x20000>;
> };
> +
> + dmsc-sram@1e0000 {
> + reg = <0x1e0000 0x1c000>;
> + };
> +
> + sproxy-sram@1fc000 {
> + reg = <0x1fc000 0x4000>;
> + };
> };
>
> gic500: interrupt-controller@1800000 {
>
