Re: [PATCH v2 13/15] arm64: dts: imx8mm-phycore-som: Add overlay for rproc
From: Shawn Guo <hidden>
Date: 2024-12-30 04:18:44
Also in:
imx, linux-devicetree, lkml
On Mon, Dec 02, 2024 at 08:20:50AM +0100, Andrej Picej wrote:
quoted hunk ↗ jump to hunk
From: Dominik Haller <redacted> Adds a devicetree overlay containing reserved memory regions used for intercore communication between A53 and M4 cores. Signed-off-by: Dominik Haller <redacted> Signed-off-by: Andrej Picej <redacted> --- Changes in v2: - no change. --- arch/arm64/boot/dts/freescale/Makefile | 2 + .../dts/freescale/imx8mm-phycore-rpmsg.dtso | 55 +++++++++++++++++++ 2 files changed, 57 insertions(+) create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-phycore-rpmsg.dtsodiff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile index 99be36a04db9..5bc083a7b778 100644 --- a/arch/arm64/boot/dts/freescale/Makefile +++ b/arch/arm64/boot/dts/freescale/Makefile@@ -125,9 +125,11 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mm-phyboard-polis-rdk.dtb imx8mm-phyboard-polis-peb-av-10-dtbs += imx8mm-phyboard-polis-rdk.dtb imx8mm-phyboard-polis-peb-av-10.dtbo imx8mm-phyboard-polis-peb-eval-01-dtbs += imx8mm-phyboard-polis-rdk.dtb imx8mm-phyboard-polis-peb-eval-01.dtbo +imx8mm-phycore-rpmsg-dtbs += imx8mm-phyboard-polis-rdk.dtb imx8mm-phycore-rpmsg.dtbo dtb-$(CONFIG_ARCH_MXC) += imx8mm-phyboard-polis-peb-av-10.dtb dtb-$(CONFIG_ARCH_MXC) += imx8mm-phyboard-polis-peb-eval-01.dtb +dtb-$(CONFIG_ARCH_MXC) += imx8mm-phycore-rpmsg.dtb dtb-$(CONFIG_ARCH_MXC) += imx8mm-phygate-tauri-l.dtb dtb-$(CONFIG_ARCH_MXC) += imx8mm-prt8mm.dtbdiff --git a/arch/arm64/boot/dts/freescale/imx8mm-phycore-rpmsg.dtso b/arch/arm64/boot/dts/freescale/imx8mm-phycore-rpmsg.dtso new file mode 100644 index 000000000000..0c61946f0cf8 --- /dev/null +++ b/arch/arm64/boot/dts/freescale/imx8mm-phycore-rpmsg.dtso@@ -0,0 +1,55 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2024 PHYTEC Messtechnik GmbH + * Author: Dominik Haller <d.haller@phytec.de> + */ + +/dts-v1/; +/plugin/; + +#include <dt-bindings/clock/imx8mm-clock.h> + +&{/} { + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges;
I'm getting this: arch/arm64/boot/dts/freescale/imx8mm-phycore-rpmsg.dtso:16.3-10: Warning (ranges_format): /fragment@0/__overlay__/reserved-memory:ranges: empty "ranges" property but its #size-cells (2) differs from /fragment@0/__overlay__ (1) arch/arm64/boot/dts/freescale/imx8mm-phycore-rpmsg.dtso:13.18-43.4: Warning (avoid_default_addr_size): /fragment@0/__overlay__/reserved-memory: Relying on default #address-cells value arch/arm64/boot/dts/freescale/imx8mm-phycore-rpmsg.dtso:13.18-43.4: Warning (avoid_default_addr_size): /fragment@0/__overlay__/reserved-memory: Relying on default #size-cells value Shawn
+
+ m4_reserved: m4@80000000 {
+ reg = <0 0x80000000 0 0x1000000>;
+ no-map;
+ };
+
+ vdev0vring0: vdev0vring0@b8000000 {
+ reg = <0 0xb8000000 0 0x8000>;
+ no-map;
+ };
+
+ vdev0vring1: vdev0vring1@b8008000 {
+ reg = <0 0xb8008000 0 0x8000>;
+ no-map;
+ };
+
+ rsc_table: rsc_table@b80ff000 {
+ reg = <0 0xb80ff000 0 0x1000>;
+ no-map;
+ };
+
+ vdevbuffer: vdevbuffer@b8400000 {
+ compatible = "shared-dma-pool";
+ reg = <0 0xb8400000 0 0x100000>;
+ no-map;
+ };
+ };
+
+ core-m4 {
+ compatible = "fsl,imx8mm-cm4";
+ clocks = <&clk IMX8MM_CLK_M4_DIV>;
+ mboxes = <&mu 0 1
+ &mu 1 1
+ &mu 3 1>;
+ mbox-names = "tx", "rx", "rxdb";
+ memory-region = <&vdevbuffer>, <&vdev0vring0>, <&vdev0vring1>, <&rsc_table>;
+ syscon = <&src>;
+ };
+};
--
2.34.1