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 for barebox@lists.infradead.org; Mon, 05 Oct 2020 12:05:51 +0000
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From: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Date: Mon, 05 Oct 2020 14:05:47 +0200
In-Reply-To: <20201005095346.27957-7-s.hauer@pengutronix.de>
References: <20201005095346.27957-1-s.hauer@pengutronix.de>
 <20201005095346.27957-7-s.hauer@pengutronix.de>
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Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org
Subject: Re: [PATCH 6/7] ARM: dts: i.MX8MQ: Add Cortex-M4 Coprocessor node
To: Sascha Hauer <s.hauer@pengutronix.de>, Barebox List <barebox@lists.infradead.org>

On Mon, 2020-10-05 at 11:53 +0200, Sascha Hauer wrote:
> The i.MX8MQ has a Cortex-M7 Coprocessor. Add a node for controlling 
Copy paste error from MX8MP ^ schould be Cortex-M4.

> it.
> To make use of it the board has to provide the reserved memory nodes,
> for example:
> 
> reserved-memory {
> 	#address-cells = <2>;
> 	#size-cells = <2>;
> 	ranges;
> 
> 	m4_reserved: m7@0x40000000 {
> 		no-map;
> 		reg = <0 0x40000000 0 0x1000000>;
> 	};
> 
> 	m4_reserved_sysmem3: rproc@80000000 {
> 		reg = <0 0x80000000 0 0x800000>;
> 		no-map;
> 	};
> };
> 
> &remoteproc_cm4 {
> 	memory-region = <&m4_reserved>, <&m4_reserved_sysmem3>;
> };
> 
> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
> ---
>  arch/arm/dts/imx8mq.dtsi | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/arch/arm/dts/imx8mq.dtsi b/arch/arm/dts/imx8mq.dtsi
> index 5f2df35bc9..ec8347f38f 100644
> --- a/arch/arm/dts/imx8mq.dtsi
> +++ b/arch/arm/dts/imx8mq.dtsi
> @@ -4,6 +4,14 @@
>   * Copyright (C) 2017 Pengutronix, Lucas Stach <
> kernel@pengutronix.de>
>   */
>  
> +/ {
> +	remoteproc_cm4: remoteproc-cm4 {
> +		compatible = "fsl,imx8mq-cm4";
> +		clocks = <&clk IMX8MQ_CLK_M4_CORE>;
> +		syscon = <&src>;
> +	};
> +};
> +
>  &clk {
>  	assigned-clocks = <&clk IMX8MQ_CLK_USDHC1>,
>  			  <&clk IMX8MQ_CLK_USDHC2>,

Regards,
Rouven


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