From 014fbffa25a7729864ed59b085a6b340e13df475 Mon Sep 17 00:00:00 2001 From: Peng Fan Date: Mon, 24 Jul 2023 15:58:30 +0800 Subject: [PATCH] arm64: dts: imx8ulp-evk: enable CM33 node Enable CM33 node to support rpmsg feature. To use rpmsg, also need to enable mu node for mailbox doorbell and reserved memory node for vring, and data buffer. And reserved a piece DRAM memory for case that m33 images loaded in DRAM. Signed-off-by: Peng Fan Signed-off-by: Shawn Guo --- arch/arm64/boot/dts/freescale/imx8ulp-evk.dts | 50 +++++++++++++++++++ 1 file changed, 50 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts b/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts index e171390a18882..d66e31cf83fe6 100644 --- a/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts @@ -31,6 +31,42 @@ size = <0 0x28000000>; linux,cma-default; }; + + m33_reserved: noncacheable-section@a8600000 { + reg = <0 0xa8600000 0 0x1000000>; + no-map; + }; + + rsc_table: rsc-table@1fff8000{ + reg = <0 0x1fff8000 0 0x1000>; + no-map; + }; + + vdev0vring0: vdev0vring0@aff00000 { + reg = <0 0xaff00000 0 0x8000>; + no-map; + }; + + vdev0vring1: vdev0vring1@aff08000 { + reg = <0 0xaff08000 0 0x8000>; + no-map; + }; + + vdev1vring0: vdev1vring0@aff10000 { + reg = <0 0xaff10000 0 0x8000>; + no-map; + }; + + vdev1vring1: vdev1vring1@aff18000 { + reg = <0 0xaff18000 0 0x8000>; + no-map; + }; + + vdevbuffer: vdevbuffer@a8400000 { + compatible = "shared-dma-pool"; + reg = <0 0xa8400000 0 0x100000>; + no-map; + }; }; clock_ext_rmii: clock-ext-rmii { @@ -49,6 +85,16 @@ }; }; +&cm33 { + mbox-names = "tx", "rx", "rxdb"; + mboxes = <&mu 0 1>, + <&mu 1 1>, + <&mu 3 1>; + memory-region = <&vdevbuffer>, <&vdev0vring0>, <&vdev0vring1>, + <&vdev1vring0>, <&vdev1vring1>, <&rsc_table>; + status = "okay"; +}; + &lpuart5 { /* console */ pinctrl-names = "default", "sleep"; @@ -92,6 +138,10 @@ }; }; +&mu { + status = "okay"; +}; + &iomuxc1 { pinctrl_enet: enetgrp { fsl,pins = < -- 2.30.2