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Subject: Re: [PATCH v4 3/6] arm64: dts: ti: iot2050: Add/enabled mailboxes and
 carve-outs for R5F cores
To:     Jan Kiszka <jan.kiszka@siemens.com>, Nishanth Menon <nm@ti.com>,
        Tero Kristo <kristo@kernel.org>,
        Rob Herring <robh+dt@kernel.org>
CC:     <linux-arm-kernel@lists.infradead.org>,
        <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
        Bao Cheng Su <baocheng.su@siemens.com>,
        Chao Zeng <chao.zeng@siemens.com>
References: <cover.1631708830.git.jan.kiszka@siemens.com>
 <1a39e2efad70eefd548f38d7d5ea2333e0cfab59.1631708830.git.jan.kiszka@siemens.com>
From:   Suman Anna <s-anna@ti.com>
Message-ID: <0704f1bd-7c40-c08e-1cc2-a3b24f1b16e7@ti.com>
Date:   Tue, 21 Sep 2021 10:11:15 -0500
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On 9/15/21 7:27 AM, Jan Kiszka wrote:
> From: Jan Kiszka <jan.kiszka@siemens.com>
> 
> Analogously to the am654-base-board, configure the mailboxes for the two
> R5F cores, add them and the already existing memory carve-outs to the
> related MCU nodes. Allows to load applications under Linux onto the
> cores, e.g. the RTI watchdog firmware.
> 
> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>

Reviewed-by: Suman Anna <s-anna@ti.com>

> ---
>  .../boot/dts/ti/k3-am65-iot2050-common.dtsi   | 26 +++++++++++++++++--
>  1 file changed, 24 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
> index 58c8e64d5885..b29537088289 100644
> --- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
> @@ -658,11 +658,21 @@ &pcie1_ep {
>  };
>  
>  &mailbox0_cluster0 {
> -	status = "disabled";
> +	interrupts = <436>;
> +
> +	mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
> +		ti,mbox-tx = <1 0 0>;
> +		ti,mbox-rx = <0 0 0>;
> +	};
>  };
>  
>  &mailbox0_cluster1 {
> -	status = "disabled";
> +	interrupts = <432>;
> +
> +	mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
> +		ti,mbox-tx = <1 0 0>;
> +		ti,mbox-rx = <0 0 0>;
> +	};
>  };
>  
>  &mailbox0_cluster2 {
> @@ -705,6 +715,18 @@ &mailbox0_cluster11 {
>  	status = "disabled";
>  };
>  
> +&mcu_r5fss0_core0 {
> +	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
> +			<&mcu_r5fss0_core0_memory_region>;
> +	mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>;
> +};
> +
> +&mcu_r5fss0_core1 {
> +	memory-region = <&mcu_r5fss0_core1_dma_memory_region>,
> +			<&mcu_r5fss0_core1_memory_region>;
> +	mboxes = <&mailbox0_cluster1 &mbox_mcu_r5fss0_core1>;
> +};
> +
>  &icssg0_mdio {
>  	status = "disabled";
>  };
>