[PATCH 6/7] ARM: dts: i.MX8MQ: Add Cortex-M4 Coprocessor node

[Sascha Hauer]

On Mon, Oct 05, 2020 at 02:05:47PM +0200, Rouven Czerwinski wrote:
> 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.

Ok, fixed.

Sascha

> 
> > 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 at 0x40000000 {
> > 		no-map;
> > 		reg = <0 0x40000000 0 0x1000000>;
> > 	};
> > 
> > 	m4_reserved_sysmem3: rproc at 80000000 {
> > 		reg = <0 0x80000000 0 0x800000>;
> > 		no-map;
> > 	};
> > };
> > 
> > &remoteproc_cm4 {
> > 	memory-region = <&m4_reserved>, <&m4_reserved_sysmem3>;
> > };
> > 
> > Signed-off-by: Sascha Hauer <s.hauer at 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 at 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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