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Message-ID: <9097f361-419f-995f-2f05-d17a949af1cb@ti.com>
Date: Wed, 10 Mar 2021 19:36:20 -0600
From: "Bajjuri, Praneeth" <praneeth@...com>
To: Jan Kiszka <jan.kiszka@....de>, Nishanth Menon <nm@...com>,
Tero Kristo <kristo@...nel.org>,
Rob Herring <robh+dt@...nel.org>
CC: devicetree <devicetree@...r.kernel.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] arm64: dts: ti: k3-am65-mcu: Add RTI watchdog entry
On 2/20/2021 6:49 AM, Jan Kiszka wrote:
> From: Jan Kiszka <jan.kiszka@...mens.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@...mens.com>
Acked-by: Praneeth Bajjuri <praneeth@...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@...00000 {
> ti,loczrama = <1>;
> };
> };
> +
> + mcu_rti1: rti@...10000 {
> + 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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> linux-arm-kernel@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>
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