diff options
| author | Philippe Schenker <philippe.schenker@toradex.com> | 2022-08-11 13:53:14 +0200 |
|---|---|---|
| committer | Philippe Schenker <philippe.schenker@toradex.com> | 2022-08-11 15:55:47 +0200 |
| commit | ca7ac792f9bc6dfb83b40cbde6f40e5fc2bf9c15 (patch) | |
| tree | d91af856121b7d89e436f134518ece77299f7b4e | |
| parent | ee4bc9b0dc2426ba3aef50e2d0c254b4e8fbbb43 (diff) | |
verdin-imx8mm: add overlay to enable rpmsg
this commit adds an overlay which reserves memory for RPMSG
communication as well as the driver to communicate with the M4.
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
| -rw-r--r-- | overlays/Makefile | 1 | ||||
| -rw-r--r-- | overlays/verdin-imx8mm_hmp.dts | 63 |
2 files changed, 64 insertions, 0 deletions
diff --git a/overlays/Makefile b/overlays/Makefile index dccb107..24de7bf 100644 --- a/overlays/Makefile +++ b/overlays/Makefile @@ -50,6 +50,7 @@ dtb-y += touch-atmel-mxt_overlay.dtbo dtb-y += verdin-imx8mm_disable_can1.dtbo dtb-y += verdin-imx8mm_lt8912_overlay.dtbo dtb-y += verdin-imx8mm_ov5640_overlay.dtbo +dtb-y += verdin-imx8mm_hmp.dtbo dtb-y += verdin-imx8mm_sn65dsi84-lt170410_overlay.dtbo dtb-y += verdin-imx8mm_sn65dsi84_overlay.dtbo dtb-y += verdin-imx8mp_lt8912_overlay.dtbo diff --git a/overlays/verdin-imx8mm_hmp.dts b/overlays/verdin-imx8mm_hmp.dts new file mode 100644 index 0000000..c21c57c --- /dev/null +++ b/overlays/verdin-imx8mm_hmp.dts @@ -0,0 +1,63 @@ +// SPDX-License-Identifier: GPL-2.0-or-later OR MIT +/* + * Copyright 2022 Toradex + */ + +// Enable RPMSG and the M4 driver + +/dts-v1/; +/plugin/; + +#include <dt-bindings/clock/imx8mm-clock.h> + +/ { + compatible = "toradex,verdin-imx8mm"; + + imx8mm-cm4 { + compatible = "fsl,imx8mm-cm4"; + rsc-da = <0xb8000000>; + clocks = <&clk IMX8MM_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>; + }; +}; + +&uart4 { + status = "disabled"; +}; + +&resmem { + #address-cells = <2>; + #size-cells = <2>; + + m4_reserved: m4@0x80000000 { + no-map; + reg = <0 0x80000000 0 0x1000000>; + }; + + 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; + }; + +}; |