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[PATCH 3/3] arm64: dts: Add phyBOARD-Pollux dts for rpmsg

Yashwanth Varakala posted 3 patches 1 year, 4 months ago
[PATCH 3/3] arm64: dts: Add phyBOARD-Pollux dts for rpmsg
Posted by Yashwanth Varakala 1 year, 4 months ago 
Adds a devicetree containing reserved memory regions used for intercore
communication between A53 and M7 cores.

Signed-off-by: Yashwanth Varakala <y.varakala@phytec.de>
---
 arch/arm64/boot/dts/freescale/Makefile        |  2 +
 .../dts/freescale/imx8mp-phycore-rpmsg.dtso   | 57 +++++++++++++++++++
 2 files changed, 59 insertions(+)
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-phycore-rpmsg.dtso

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index dedea4b5c319..80cc87d50301 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -177,9 +177,11 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-phyboard-pollux-rdk.dtb
 imx8mp-phyboard-pollux-rdk-no-eth-dtbs += imx8mp-phyboard-pollux-rdk.dtb imx8mp-phycore-no-eth.dtbo
 imx8mp-phyboard-pollux-rdk-no-rtc-dtbs += imx8mp-phyboard-pollux-rdk.dtb imx8mp-phycore-no-rtc.dtbo
 imx8mp-phyboard-pollux-rdk-no-spiflash-dtbs += imx8mp-phyboard-pollux-rdk.dtb imx8mp-phycore-no-spiflash.dtbo
+imx8mp-phyboard-pollux-rdk-rpmsg-dtbs += imx8mp-phyboard-pollux-rdk.dtb imx8mp-phycore-rpmsg.dtbo
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-phyboard-pollux-rdk-no-eth.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-phyboard-pollux-rdk-no-rtc.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-phyboard-pollux-rdk-no-spiflash.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mp-phyboard-pollux-rdk-rpmsg.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-skov-revb-hdmi.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-skov-revb-lt6.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mp-skov-revb-mi1010ait-1cp1.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-phycore-rpmsg.dtso b/arch/arm64/boot/dts/freescale/imx8mp-phycore-rpmsg.dtso
new file mode 100644
index 000000000000..a5694f3aecaa
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mp-phycore-rpmsg.dtso
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2024 PHYTEC Messtechnik GmbH
+ * Author: Dominik Haller <d.haller@phytec.de>
+ * 	   Cem Tenruh <c.tenruh@phytec.de>
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/clock/imx8mp-clock.h>
+
+&{/} {
+	imx8mp-cm7 {
+		compatible = "fsl,imx8mn-cm7";
+		clocks = <&clk IMX8MP_CLK_M7_DIV>;
+		mboxes = <&mu 0 1
+			&mu 1 1
+			&mu 3 1>;
+		mbox-names = "tx", "rx", "rxdb";
+		memory-region = <&vdevbuffer>, <&vdev0vring0>, <&vdev0vring1>, <&rsc_table>;
+		rsc-da = <0x55000000>;
+		status = "okay";
+	};
+
+	reserved-memory {
+		ranges;
+		#address-cells = <2>;
+		#size-cells = <2>;
+
+		m7_reserved: m7@0x80000000 {
+			no-map;
+			reg = <0 0x80000000 0 0x1000000>;
+		};
+
+		rsc_table: rsc_table@550ff000 {
+			no-map;
+			reg = <0 0x550ff000 0 0x1000>;
+		};
+
+		vdevbuffer: vdevbuffer@55400000 {
+			compatible = "shared-dma-pool";
+			no-map;
+			reg = <0 0x55400000 0 0x100000>;
+		};
+
+		vdev0vring0: vdev0vring0@55000000 {
+			no-map;
+			reg = <0 0x55000000 0 0x8000>;
+		};
+
+		vdev0vring1: vdev0vring1@55008000 {
+			no-map;
+			reg = <0 0x55008000 0 0x8000>;
+		};
+	};
+};
-- 
2.34.1
Re: [PATCH 3/3] arm64: dts: Add phyBOARD-Pollux dts for rpmsg
Posted by Krzysztof Kozlowski 1 year, 4 months ago 
On 25/07/2024 11:44, Yashwanth Varakala wrote:
> Adds a devicetree containing reserved memory regions used for intercore
> communication between A53 and M7 cores.
> 
> Signed-off-by: Yashwanth Varakala <y.varakala@phytec.de>
> ---
>  arch/arm64/boot/dts/freescale/Makefile        |  2 +
>  .../dts/freescale/imx8mp-phycore-rpmsg.dtso   | 57 +++++++++++++++++++
>  2 files changed, 59 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-phycore-rpmsg.dtso
> 
> diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
> index dedea4b5c319..80cc87d50301 100644
> --- a/arch/arm64/boot/dts/freescale/Makefile
> +++ b/arch/arm64/boot/dts/freescale/Makefile
> @@ -177,9 +177,11 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-phyboard-pollux-rdk.dtb
>  imx8mp-phyboard-pollux-rdk-no-eth-dtbs += imx8mp-phyboard-pollux-rdk.dtb imx8mp-phycore-no-eth.dtbo
>  imx8mp-phyboard-pollux-rdk-no-rtc-dtbs += imx8mp-phyboard-pollux-rdk.dtb imx8mp-phycore-no-rtc.dtbo
>  imx8mp-phyboard-pollux-rdk-no-spiflash-dtbs += imx8mp-phyboard-pollux-rdk.dtb imx8mp-phycore-no-spiflash.dtbo
> +imx8mp-phyboard-pollux-rdk-rpmsg-dtbs += imx8mp-phyboard-pollux-rdk.dtb imx8mp-phycore-rpmsg.dtbo
>  dtb-$(CONFIG_ARCH_MXC) += imx8mp-phyboard-pollux-rdk-no-eth.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx8mp-phyboard-pollux-rdk-no-rtc.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx8mp-phyboard-pollux-rdk-no-spiflash.dtb
> +dtb-$(CONFIG_ARCH_MXC) += imx8mp-phyboard-pollux-rdk-rpmsg.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx8mp-skov-revb-hdmi.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx8mp-skov-revb-lt6.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx8mp-skov-revb-mi1010ait-1cp1.dtb
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-phycore-rpmsg.dtso b/arch/arm64/boot/dts/freescale/imx8mp-phycore-rpmsg.dtso
> new file mode 100644
> index 000000000000..a5694f3aecaa
> --- /dev/null
> +++ b/arch/arm64/boot/dts/freescale/imx8mp-phycore-rpmsg.dtso
> @@ -0,0 +1,57 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (C) 2024 PHYTEC Messtechnik GmbH
> + * Author: Dominik Haller <d.haller@phytec.de>
> + * 	   Cem Tenruh <c.tenruh@phytec.de>
> + */
> +
> +/dts-v1/;
> +/plugin/;
> +
> +#include <dt-bindings/clock/imx8mp-clock.h>
> +
> +&{/} {
> +	imx8mp-cm7 {

Node names should be generic. See also an explanation and list of
examples (not exhaustive) in DT specification:
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation


> +		compatible = "fsl,imx8mn-cm7";
> +		clocks = <&clk IMX8MP_CLK_M7_DIV>;
> +		mboxes = <&mu 0 1
> +			&mu 1 1
> +			&mu 3 1>;

That's one or there entries? look wrong.

> +		mbox-names = "tx", "rx", "rxdb";
> +		memory-region = <&vdevbuffer>, <&vdev0vring0>, <&vdev0vring1>, <&rsc_table>;
> +		rsc-da = <0x55000000>;
> +		status = "okay";

Why? Did you disable it anywhere? You add a new node.

> +	};
> +
> +	reserved-memory {
> +		ranges;
> +		#address-cells = <2>;
> +		#size-cells = <2>;
> +
> +		m7_reserved: m7@0x80000000 {
> +			no-map;
> +			reg = <0 0x80000000 0 0x1000000>;
> +		};
> +
> +		rsc_table: rsc_table@550ff000 {

Please follow DTS coding style... This applies to all your contributions.

Best regards,
Krzysztof

Patchew 2.1-devel-b67e4c2

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