linux-kernel - Re: [PATCH 2/3] arm64: dts: ti: k3-am62p-j722s: enable the bxs-4-64

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Message-ID: <20250813151721.nc5fr3qmro5grlda@steam>
Date: Wed, 13 Aug 2025 10:17:21 -0500
From: Nishanth Menon <nm@...com>
To: <rs@...com>
CC: <vigneshr@...com>, <kristo@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>, <d-gole@...com>,
        <afd@...com>, <bb@...com>, <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <detheridge@...com>, <matt.coster@...tec.com>,
        Michael Walle
	<mwalle@...nel.org>
Subject: Re: [PATCH 2/3] arm64: dts: ti: k3-am62p-j722s: enable the bxs-4-64

On 18:25-20250808, rs@...com wrote:
> From: Randolph Sapp <rs@...com>
> 
> Add the relevant device tree node for Imagination's BXS-4-64 GPU.
> 
> These devices specifically do not set the dma-coherent bit because they
> do not use the same MSMC configuration as other BXS-4-64 enabled TI
> platforms.
> 
> Signed-off-by: Randolph Sapp <rs@...com>
> ---
>  .../boot/dts/ti/k3-am62p-j722s-common-main.dtsi     | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi
> index 2e5e25a8ca86..a51db8f9dff8 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-main.dtsi
> @@ -690,6 +690,19 @@ ospi0: spi@...0000 {
>  		};
>  	};
>  
> +	gpu: gpu@...0000 {
> +		compatible = "ti,j721s2-gpu", "img,img-bxs-4-64", "img,img-rogue";

Note the discussion in https://lore.kernel.org/linux-arm-kernel/DBE4UO2RGAYX.17V1DAF8MQYJM@kernel.org/

> +		reg = <0x00 0x0fd80000 0x00 0x80000>;
> +		clocks = <&k3_clks 237 1>;
> +		clock-names = "core";
> +		assigned-clocks = <&k3_clks 237 1>;
> +		assigned-clock-rates = <800000000>;
> +		interrupts = <GIC_SPI 241 IRQ_TYPE_LEVEL_HIGH>;
> +		power-domains = <&k3_pds 237 TI_SCI_PD_EXCLUSIVE>,
> +				<&k3_pds 242 TI_SCI_PD_EXCLUSIVE>;
> +		power-domain-names = "a", "b";
> +	};
> +
>  	cpsw3g: ethernet@...0000 {
>  		compatible = "ti,am642-cpsw-nuss";
>  		#address-cells = <2>;
> -- 
> 2.50.1
> 

Is the issue that Michael reported
https://lore.kernel.org/linux-arm-kernel/20250716134717.4085567-3-mwalle@kernel.org/
resolved?

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D
https://ti.com/opensource