Re: [PATCH v2 1/4] arm64: dts: ti: k3-am62-phycore-som: Enable Co-processors

Wadim Egorov
2025-05-06T15:17:31Z

Am 06.05.25 um 16:36 schrieb Daniel Schultz:
> For every remote processor, set up dedicated memory regions and
> associate the required mailbox channels. Allocate two memory areas
> per remote core: one 1MB region for vring shared buffers, and
> another for external memory used by the remote processor for its
> resource table and trace buffer.
>
> Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
Reviewed-by: Wadim Egorov <w.egorov@phytec.de>

> ---
> .../boot/dts/ti/k3-am62-phycore-som.dtsi | 35 +++++++++++++++----
> 1 file changed, 29 insertions(+), 6 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
> index 55ed418c023b..3075979935d5 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
> @@ -64,6 +64,18 @@ mcu_m4fss_memory_region: m4f-memory@9cc00000 {
> no-map;
> };
>
> + wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@9da00000 {
> + compatible = "shared-dma-pool";
> + reg = <0x00 0x9da00000 0x00 0x100000>;
> + no-map;
> + };
> +
> + wkup_r5fss0_core0_memory_region: r5f-memory@9db00000 {
> + compatible = "shared-dma-pool";
> + reg = <0x00 0x9db00000 0x00 0xc00000>;
> + no-map;
> + };
> +
> secure_tfa_ddr: tfa@9e780000 {
> reg = <0x00 0x9e780000 0x00 0x80000>;
> alignment = <0x1000>;
> @@ -75,12 +87,6 @@ secure_ddr: optee@9e800000 {
> alignment = <0x1000>;
> no-map;
> };
> -
> - wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@9db00000 {
> - compatible = "shared-dma-pool";
> - reg = <0x00 0x9db00000 0x00 0x00c00000>;
> - no-map;
> - };
> };
>
> vcc_5v0_som: regulator-vcc-5v0-som {
> @@ -240,10 +246,17 @@ cpsw3g_phy1: ethernet-phy@1 {
> };
>
> &mailbox0_cluster0 {
> + status = "okay";
> +
> mbox_m4_0: mbox-m4-0 {
> ti,mbox-rx = <0 0 0>;
> ti,mbox-tx = <1 0 0>;
> };
> +
> + mbox_r5_0: mbox-r5-0 {
> + ti,mbox-rx = <2 0 0>;
> + ti,mbox-tx = <3 0 0>;
> + };
> };
>
> &main_pktdma {
> @@ -386,3 +399,13 @@ &sdhci0 {
> bootph-all;
> status = "okay";
> };
> +
> +&wkup_r5fss0 {
> + status = "okay";
> +};
> +
> +&wkup_r5fss0_core0 {
> + mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
> + memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
> + <&wkup_r5fss0_core0_memory_region>;
> +};