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Message-ID: <3f0002df-7ff0-4fd8-b8df-105ae9a5b051@ti.com>
Date: Mon, 26 Aug 2024 10:30:18 +0530
From: "Kumar, Udit" <u-kumar1@...com>
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: <tony@...mide.com>, <bb@...com>, <d-gole@...com>, <afd@...com>,
<hnagalla@...com>, <linux-arm-kernel@...ts.infradead.org>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<u-kumar1@...com>
Subject: Re: [PATCH v3 5/5] arm64: dts: ti: k3-j722s: Change timer nodes
status to reserved
On 8/16/2024 1:09 PM, Beleswar Padhi wrote:
> The remoteproc firmware like of R5F and DSPs in the MAIN voltage domain
> use timers. Therefore, change the status of the timer nodes to
> "reserved" to avoid any clash. Usage is described as below:
>
> +===================+=============+
> | Remoteproc Node | Timer Node |
> +===================+=============+
> | main_r5fss0_core0 | main_timer0 |
> +-------------------+-------------+
> | c7x_0 | main_timer1 |
> +-------------------+-------------+
> | c7x_1 | main_timer2 |
> +-------------------+-------------+
>
> Fixes: 29075cc09f43 ("arm64: dts: ti: Introduce AM62P5 family of SoCs")
> Signed-off-by: Beleswar Padhi <b-padhi@...com>
> ---
> arch/arm64/boot/dts/ti/k3-j722s-evm.dts | 13 +++++++++++++
> 1 file changed, 13 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
> index dd3b5f7039d7..e03beb0b5aad 100644
> --- a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
> +++ b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
> @@ -566,3 +566,16 @@ &mcasp1 {
> 0 0 0 0
> >;
> };
> +
> +/* Timers are used by Remoteproc firmware */
> +&main_timer0 {
> + status = "reserved";
> +};
> +
> +&main_timer1 {
> + status = "reserved";
> +};
> +
> +&main_timer2 {
> + status = "reserved";
> +};
Since IPC is not up-streamed for J722S , So I suggest to drop this patch
from this series
and include this when you upstream IPC support for J722S board .
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