From: Sascha Hauer <s.hauer@pengutronix.de>
To: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Cc: Barebox List <barebox@lists.infradead.org>
Subject: Re: [PATCH 6/7] ARM: dts: i.MX8MQ: Add Cortex-M4 Coprocessor node
Date: Wed, 7 Oct 2020 09:07:48 +0200 [thread overview]
Message-ID: <20201007070748.GI11648@pengutronix.de> (raw)
In-Reply-To: <7fded9e8f5d18fd638f7d93e1bfdb95356372b0a.camel@pengutronix.de>
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@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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next prev parent reply other threads:[~2020-10-07 7:07 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-05 9:53 [PATCH 0/7] remoteproc: Add i.MX8M Cortex-M[47] support Sascha Hauer
2020-10-05 9:53 ` [PATCH 1/7] remoteproc: imx: Fix off-by-one error Sascha Hauer
2020-10-05 12:23 ` Lucas Stach
2020-10-07 7:06 ` Sascha Hauer
2020-10-05 9:53 ` [PATCH 2/7] remoteproc: imx: Change SoC order in code Sascha Hauer
2020-10-05 9:53 ` [PATCH 3/7] remoteproc: imx: use function hooks in SoC data Sascha Hauer
2020-10-05 9:53 ` [PATCH 4/7] remoteproc: imx: Add i.MX8M support Sascha Hauer
2020-10-05 9:53 ` [PATCH 5/7] clk: i.MX8MQ: Add Cortex-M4 clk Sascha Hauer
2020-10-05 9:53 ` [PATCH 6/7] ARM: dts: i.MX8MQ: Add Cortex-M4 Coprocessor node Sascha Hauer
2020-10-05 12:05 ` Rouven Czerwinski
2020-10-07 7:07 ` Sascha Hauer [this message]
2020-10-05 9:53 ` [PATCH 7/7] ARM: dts: i.MX8MP: Add Cortex-M7 " Sascha Hauer
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