[PATCH 2/2] arm64: dts: imx8mp: add reserve-memory nodes for DSP
Marco Felsch
m.felsch at pengutronix.de
Tue Sep 12 04:42:00 PDT 2023
On 23-09-12, Iuliana Prodan wrote:
> On 9/12/2023 2:30 PM, Marco Felsch wrote:
> > Hi Iuliana,
> >
> > On 23-09-12, Iuliana Prodan (OSS) wrote:
> > > From: Iuliana Prodan <iuliana.prodan at nxp.com>
> > >
> > > Add the reserve-memory nodes used by DSP when the rpmsg
> > > feature is enabled.
> > > These can be later used in a dsp node, like:
> > > dsp: dsp at 3b6e8000 {
> > > compatible = "fsl,imx8mp-dsp";
> > > reg = <0x3b6e8000 0x88000>;
> > > mbox-names = "tx0", "rx0", "rxdb0";
> > > mboxes = <&mu2 2 0>, <&mu2 2 1>,
> > > <&mu2 3 0>, <&mu2 3 1>;
> > > memory-region = <&dsp_vdev0buffer>, <&dsp_vdev0vring0>,
> > > <&dsp_vdev0vring1>, <&dsp_reserved>;
> > > status = "okay";
> > > };
> > >
> > > Signed-off-by: Iuliana Prodan <iuliana.prodan at nxp.com>
> > > ---
> > > arch/arm64/boot/dts/freescale/imx8mp.dtsi | 12 ++++++++++++
> > > 1 file changed, 12 insertions(+)
> > >
> > > diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> > > index cc406bb338fe..eedc1921af62 100644
> > > --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> > > +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> > > @@ -210,6 +210,18 @@
> > > dsp_reserved: dsp at 92400000 {
> > > reg = <0 0x92400000 0 0x2000000>;
> > > no-map;
> > This seems broken.
>
>
> You're right.
> Already answered to this here:
> https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg2558691.html
Sorry, saw it to late..
Regards,
Marco
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