[PATCH 1/2] arm64: dts: imx8mq: add remoteproc m4 support

[Mathieu Poirier]

Same for this set - I need Peng to add his RB _and_ TB tags to it before I
consider for review.  Also, please start adding cover letters to your patchsets.

Thanks,
Mathieu

On Thu, Aug 05, 2021 at 05:12:17PM +0800, Dong Aisheng wrote:
> Add cm4 remoteproc which supports rpmsg naming service.
> It needs vdevbuffer and a pair of vrings and 16MB reserved memory.
> 
> Signed-off-by: Dong Aisheng <aisheng.dong at nxp.com>
> ---
>  arch/arm64/boot/dts/freescale/Makefile        |  1 +
>  .../boot/dts/freescale/imx8mq-evk-rpmsg.dts   | 72 +++++++++++++++++++
>  2 files changed, 73 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/freescale/imx8mq-evk-rpmsg.dts
> 
> diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
> index 4b4785d86324..687ad9d68a85 100644
> --- a/arch/arm64/boot/dts/freescale/Makefile
> +++ b/arch/arm64/boot/dts/freescale/Makefile
> @@ -49,6 +49,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mn-var-som-symphony.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx8mp-evk.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx8mp-phyboard-pollux-rdk.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx8mq-evk.dtb
> +dtb-$(CONFIG_ARCH_MXC) += imx8mq-evk-rpmsg.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx8mq-hummingboard-pulse.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx8mq-kontron-pitx-imx8m.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx8mq-librem5-devkit.dtb
> diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk-rpmsg.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk-rpmsg.dts
> new file mode 100644
> index 000000000000..4a8911087e5f
> --- /dev/null
> +++ b/arch/arm64/boot/dts/freescale/imx8mq-evk-rpmsg.dts
> @@ -0,0 +1,72 @@
> +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> +/*
> + * Copyright 2019-2021 NXP
> + */
> +
> +#include "imx8mq-evk.dts"
> +
> +/ {
> +	reserved-memory {
> +		#address-cells = <2>;
> +		#size-cells = <2>;
> +		ranges;
> +
> +		vdev0vring0: vdev0vring0 at b8000000 {
> +			reg = <0 0xb8000000 0 0x8000>;
> +			no-map;
> +		};
> +
> +		vdev0vring1: vdev0vring1 at b8008000 {
> +			reg = <0 0xb8008000 0 0x8000>;
> +			no-map;
> +		};
> +
> +		rsc_table: rsc-table at b80ff000 {
> +			reg = <0 0xb80ff000 0 0x1000>;
> +			no-map;
> +		};
> +
> +		vdevbuffer: vdevbuffer at b8400000 {
> +			compatible = "shared-dma-pool";
> +			reg = <0 0xb8400000 0 0x100000>;
> +			no-map;
> +		};
> +
> +		remoteproc at 80000000 {
> +			reg = <0 0x80000000 0 0x1000000>;
> +			no-map;
> +		};
> +	};
> +
> +	imx8mq-cm4 {
> +		compatible = "fsl,imx8mq-cm4";
> +		clocks = <&clk IMX8MQ_CLK_M4_DIV>;
> +		mbox-names = "tx", "rx", "rxdb";
> +		mboxes = <&mu 0 1
> +			  &mu 1 1
> +			  &mu 3 1>;
> +		memory-region = <&vdevbuffer>, <&vdev0vring0>, <&vdev0vring1>,
> +				<&rsc_table>;
> +		syscon = <&src>;
> +	};
> +};
> +
> +/*
> + * Below devices are allocated on remoteproc
> + */
> +
> +&i2c2 {
> +	status = "disabled";
> +};
> +
> +&pwm4 {
> +	status = "disabled";
> +};
> +
> +&tmu {
> +	status = "disabled";
> +};
> +
> +&uart2 {
> +	status = "disabled";
> +};
> -- 
> 2.25.1
>