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Subject: Re: [PATCH] arm64: dts: ti: k3-am65-mcu: Add RTI watchdog entry
To:     Jan Kiszka <jan.kiszka@web.de>, Nishanth Menon <nm@ti.com>,
        Tero Kristo <kristo@kernel.org>,
        Rob Herring <robh+dt@kernel.org>
CC:     devicetree <devicetree@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@lists.infradead.org>
References: <279c20fa-6e5e-4f88-9cd1-f76297a28a19@web.de>
From:   "Bajjuri, Praneeth" <praneeth@ti.com>
Message-ID: <9097f361-419f-995f-2f05-d17a949af1cb@ti.com>
Date:   Wed, 10 Mar 2021 19:36:20 -0600
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On 2/20/2021 6:49 AM, Jan Kiszka wrote:
> From: Jan Kiszka <jan.kiszka@siemens.com>
> 
> Add the DT entry for a watchdog based on RTI1.
> 
> On SR1.0 silicon, it requires additional firmware on the MCU R5F cores
> to handle the expiry, e.g. https://github.com/siemens/k3-rti-wdt. As
> this firmware will also lock the power domain to protect it against
> premature shutdown, mark it shared.
> 
> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>

Acked-by: Praneeth Bajjuri <praneeth@ti.com>

> ---
>   arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi | 9 +++++++++
>   1 file changed, 9 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
> index 7454c8cec0cc..903796bf7d64 100644
> --- a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
> @@ -308,4 +308,13 @@ mcu_r5fss0_core1: r5f@41400000 {
>   			ti,loczrama = <1>;
>   		};
>   	};
> +
> +	mcu_rti1: rti@40610000 {
> +		compatible = "ti,j7-rti-wdt";
> +		reg = <0x0 0x40610000 0x0 0x100>;
> +		clocks = <&k3_clks 135 0>;
> +		power-domains = <&k3_pds 135 TI_SCI_PD_SHARED>;
> +		assigned-clocks = <&k3_clks 135 0>;
> +		assigned-clock-parents = <&k3_clks 135 4>;
> +	};
>   };
> --
> 2.26.2
> 
> 
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