linux-kernel - Re: [PATCH] arm64: dts: ti: k3-am62p: Fix memory ranges for GPU

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Message-Id: <DCZ5ETIF2Z99.39M5HLYLNMX44@kernel.org>
Date: Mon, 22 Sep 2025 09:25:16 +0200
From: "Michael Walle" <mwalle@...nel.org>
To: <rs@...com>, <afd@...com>, <conor+dt@...nel.org>,
 <frank.binns@...tec.com>, <kristo@...nel.org>, <krzk+dt@...nel.org>,
 <matt.coster@...tec.com>, <nm@...com>, <robh@...nel.org>, <vigneshr@...com>
Cc: <devicetree@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>,
 <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
 <detheridge@...com>
Subject: Re: [PATCH] arm64: dts: ti: k3-am62p: Fix memory ranges for GPU

Hi,

> Update the memory region listed in the k3-am62p.dtsi for the BXS-4-64
> GPU to match the Main Memory Map described in the TRM [1].
>
> [1] https://www.ti.com/lit/ug/spruj83b/spruj83b.pdf
>
> Fixes: 29075cc09f43 ("arm64: dts: ti: Introduce AM62P5 family of SoCs")
> Signed-off-by: Randolph Sapp <rs@...com>
> ---
>
> Requirement for the following series:
> https://lore.kernel.org/all/20250915143440.2362812-1-mwalle@kernel.org/

On a am62p. am67a/j722s works fine.

>  arch/arm64/boot/dts/ti/k3-am62p.dtsi | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am62p.dtsi b/arch/arm64/boot/dts/ti/k3-am62p.dtsi
> index 75a15c368c11..dd24c40c7965 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62p.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62p.dtsi
> @@ -59,7 +59,7 @@ cbass_main: bus@...00 {
>  			 <0x00 0x01000000 0x00 0x01000000 0x00 0x01b28400>, /* First peripheral window */
>  			 <0x00 0x08000000 0x00 0x08000000 0x00 0x00200000>, /* Main CPSW */
>  			 <0x00 0x0e000000 0x00 0x0e000000 0x00 0x01d20000>, /* Second peripheral window */
> -			 <0x00 0x0fd00000 0x00 0x0fd00000 0x00 0x00020000>, /* GPU */
> +			 <0x00 0x0fd80000 0x00 0x0fd80000 0x00 0x00080000>, /* GPU */
>  			 <0x00 0x20000000 0x00 0x20000000 0x00 0x0a008000>, /* Third peripheral window */
>  			 <0x00 0x30040000 0x00 0x30040000 0x00 0x00080000>, /* PRUSS-M */
>  			 <0x00 0x30101000 0x00 0x30101000 0x00 0x00010100>, /* CSI window */

Given the fact that the GPU node is in the shared
k3-am62p-j722s-common-main.dtsi:

Reviewed-by: Michael Walle <mwalle@...nel.org>

-michael

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