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SubjectRe: [PATCH 2/4] arm64: dts: ti: k3-am62p: Add DMASS1 for CSI
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On 01/02/24 18:37, Jai Luthra wrote:
> On AM62P, CSI-RX uses a dedicated BCDMA instance (DMASS1) for
> transferring captured camera frames to DDR, so enable it.
>
> Signed-off-by: Jai Luthra <j-luthra@ti.com>
> ---
> arch/arm64/boot/dts/ti/k3-am62p-main.dtsi | 37 +++++++++++++++++++++++++++++++
> 1 file changed, 37 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
> index 4c51bae06b57..57ec4ef334e4 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
> @@ -158,6 +158,43 @@ main_pktdma: dma-controller@485c0000 {
> };
> };
>
> + dmss_csi: bus@4e000000 {
> + compatible = "simple-bus";
> + ranges = <0x00 0x4e000000 0x00 0x4e000000 0x00 0x408000>;
> + #address-cells = <2>;
> + #size-cells = <2>;
> + dma-ranges;
> + ti,sci-dev-id = <198>;
> +
> + inta_main_dmss_csi: interrupt-controller@4e400000 {
> + compatible = "ti,sci-inta";
> + reg = <0x00 0x4e400000 0x00 0x8000>;
> + #interrupt-cells = <0>;
> + interrupt-controller;
> + interrupt-parent = <&gic500>;
> + msi-controller;
> + power-domains = <&k3_pds 182 TI_SCI_PD_EXCLUSIVE>;
> + ti,sci = <&dmsc>;
> + ti,sci-dev-id = <200>;
> + ti,interrupt-ranges = <0 237 8>;
> + ti,unmapped-event-sources = <&main_bcdma_csi>;
> + };
> +
> + main_bcdma_csi: dma-controller@4e230000 {
> + compatible = "ti,am62a-dmss-bcdma-csirx";
> + reg = <0x00 0x4e230000 0x00 0x100>,
> + <0x00 0x4e180000 0x00 0x8000>,
> + <0x00 0x4e100000 0x00 0x10000>;
> + reg-names = "gcfg", "rchanrt", "ringrt";
> + #dma-cells = <3>;
> + msi-parent = <&inta_main_dmss_csi>;
> + power-domains = <&k3_pds 182 TI_SCI_PD_EXCLUSIVE>;
> + ti,sci = <&dmsc>;
> + ti,sci-dev-id = <199>;
> + ti,sci-rm-range-rchan = <0x21>;
> + };
> + };

Reviewed-by: Vaishnav Achath <vaishnav.a@ti.com>

> +
> dmsc: system-controller@44043000 {
> compatible = "ti,k2g-sci";
> ti,host-id = <12>;
>

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