linux-kernel - Re: [PATCH v2 18/33] arm64: dts: ti: k3-am64-phycore-som: Add missing cfg for TI IPC Firmware

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Message-ID: <b745deb3-b625-472b-b55a-468eebbdfb16@phytec.de>
Date: Thu, 28 Aug 2025 14:42:08 +0300
From: Wadim Egorov <w.egorov@...tec.de>
To: Beleswar Padhi <b-padhi@...com>, nm@...com, vigneshr@...com,
 kristo@...nel.org, robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org
Cc: afd@...com, u-kumar1@...com, hnagalla@...com, jm@...com,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, Matt McKee <mmckee@...tec.com>,
 Garrett Giordano <ggiordano@...tec.com>,
 Nathan Morrisson <nmorrisson@...tec.com>, John Ma <jma@...tec.com>,
 Logan Bristol <logan.bristol@...xas.edu>
Subject: Re: [PATCH v2 18/33] arm64: dts: ti: k3-am64-phycore-som: Add missing
 cfg for TI IPC Firmware



On 8/23/25 7:08 PM, Beleswar Padhi wrote:
> The k3-am64-phycore SoM enables all R5F and M4F remote processors.
> Reserve the MAIN domain timers that are used by R5F remote
> processors for ticks to avoid rproc crashes. This config aligns with
> other AM64 boards and can be refactored out later.
> 
> Signed-off-by: Beleswar Padhi <b-padhi@...com>

I am not sure you need this patch, because you are deleting everything 
you add in patch 32. But I tested the series on our hardware, so

Tested-by: Wadim Egorov <w.egorov@...tec.de>

> ---
> Cc: Wadim Egorov <w.egorov@...tec.de>
> Cc: Matt McKee <mmckee@...tec.com>
> Cc: Garrett Giordano <ggiordano@...tec.com>
> Cc: Nathan Morrisson <nmorrisson@...tec.com>
> Cc: John Ma <jma@...tec.com>
> Cc: Logan Bristol <logan.bristol@...xas.edu>
> Requesting for review/test of this patch.
> 
> v2: Changelog:
> 1. Re-ordered patch from [PATCH 28/33] to [PATCH v2 18/33].
> 
> Link to v1:
> https://lore.kernel.org/all/20250814223839.3256046-29-b-padhi@ti.com/
> 
>   .../boot/dts/ti/k3-am64-phycore-som.dtsi      | 24 +++++++++++++++++++
>   1 file changed, 24 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
> index 03c46d74ebb5..1efd547b2ba6 100644
> --- a/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
> @@ -275,6 +275,30 @@ mbox_m4_0: mbox-m4-0 {
>   	};
>   };
>   
> +/* main_timer8 is used by r5f0-0 */
> +&main_timer8 {
> +	status = "reserved";
> +};
> +
> +/* main_timer9 is used by r5f0-1 */
> +&main_timer9 {
> +	status = "reserved";
> +};
> +
> +/* main_timer10 is used by r5f1-0 */
> +&main_timer10 {
> +	status = "reserved";
> +};
> +
> +/* main_timer11 is used by r5f1-1 */
> +&main_timer11 {
> +	status = "reserved";
> +};
> +
> +&main_r5fss0 {
> +	status = "okay";
> +};
> +
>   &main_i2c0 {
>   	pinctrl-names = "default";
>   	pinctrl-0 = <&main_i2c0_pins_default>;