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Message-ID: <1809eef3-7308-4ec5-9a31-6ae8ca1c8a57@ti.com>
Date: Tue, 20 Aug 2024 10:15:39 -0500
From: Andrew Davis <afd@...com>
To: Hari Nagalla <hnagalla@...com>, <vigneshr@...com>, <kristo@...nel.org>,
<robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
<conor+dt@...nel.org>, <nm@...com>, <bb@...com>
CC: <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
<devicetree@...r.kernel.org>
Subject: Re: [PATCH v4 4/4] arm64: dts: ti: k3-am62a7-sk: Enable ipc with
remote proc nodes
On 8/20/24 5:40 AM, Hari Nagalla wrote:
> From: Devarsh Thakkar <devarsht@...com>
>
> Reserve memory for remote rpoc IPC and bind the mailbox assignments
s/remote rpoc/Remoteproc
> for each remote proc. Two memory regions are reserved for each
> remote processor. The first region of 1MB of memory is used for Vring
> shared buffers and the second region is used as external memory to the
> remote processor, resource table and as tracebuffer.
>
> Signed-off-by: Devarsh Thakkar <devarsht@...com>
> Signed-off-by: Hari Nagalla <hnagalla@...com>
> ---
> arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 68 +++++++++++++++++++++++++
> 1 file changed, 68 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
> index 67faf46d7a35..fb350b578899 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
> @@ -61,11 +61,40 @@ secure_ddr: optee@...00000 {
> no-map;
> };
>
> + wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@...00000 {
> + compatible = "shared-dma-pool";
> + reg = <0x00 0x9c800000 0x00 0x100000>;
> + no-map;
> + };
> +
> wkup_r5fss0_core0_memory_region: r5f-dma-memory@...00000 {
> compatible = "shared-dma-pool";
> reg = <0x00 0x9c900000 0x00 0x01e00000>;
> no-map;
> };
newline
> + mcu_r5fss0_core0_dma_memory_region: r5f-dma-memory@...00000 {
> + compatible = "shared-dma-pool";
> + reg = <0x00 0x9b800000 0x00 0x100000>;
> + no-map;
> + };
> +
> + mcu_r5fss0_core0_memory_region: r5f-dma-memory@...00000 {
> + compatible = "shared-dma-pool";
> + reg = <0x00 0x9b900000 0x00 0x0f00000>;
> + no-map;
> + };
> +
> + c7x_0_dma_memory_region: c7x-dma-memory@...00000 {
> + compatible = "shared-dma-pool";
> + reg = <0x00 0x99800000 0x00 0x100000>;
> + no-map;
> + };
> +
> + c7x_0_memory_region: c7x-memory@...00000 {
> + compatible = "shared-dma-pool";
> + reg = <0x00 0x99900000 0x00 0x01f00000>;
> + no-map;
> + };
> };
>
> vmain_pd: regulator-0 {
> @@ -728,3 +757,42 @@ dpi1_out: endpoint {
> };
> };
> };
> +
> +&mailbox0_cluster0 {
> + mbox_r5_0: mbox-r5-0 {
> + ti,mbox-rx = <0 0 0>;
> + ti,mbox-tx = <1 0 0>;
> + };
> +};
> +
> +&mailbox0_cluster1 {
> + mbox_c7x_0: mbox-c7x-0 {
> + ti,mbox-rx = <0 0 0>;
> + ti,mbox-tx = <1 0 0>;
> + };
> +};
> +
> +&mailbox0_cluster2 {
> + mbox_mcu_r5_0: mbox-mcu-r5-0 {
> + ti,mbox-rx = <0 0 0>;
> + ti,mbox-tx = <1 0 0>;
> + };
> +};
> +
> +&c7x_0 {
These nodes are incomplete before this point and should have
been disabled when you added them in the dtsi, set their status
to "okay" here.
> + mboxes = <&mailbox0_cluster1>, <&mbox_c7x_0>;
Should be one item:
mboxes = <&mailbox0_cluster1 &mbox_c7x_0>;
Andrew
> + memory-region = <&c7x_0_dma_memory_region>,
> + <&c7x_0_memory_region>;
> +};
> +
> +&wkup_r5fss0_core0 {
> + mboxes = <&mailbox0_cluster0>, <&mbox_r5_0>;
> + memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
> + <&wkup_r5fss0_core0_memory_region>;
> +};
> +
> +&mcu_r5fss0_core0 {
> + mboxes = <&mailbox0_cluster2>, <&mbox_mcu_r5_0>;
> + memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
> + <&mcu_r5fss0_core0_memory_region>;
> +};
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