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charset="utf-8" From: Peng Fan 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 --- 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/boo= t/dts/freescale/imx8ulp-evk.dts index e171390a1888..d66e31cf83fe 100644 --- a/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts @@ -31,6 +31,42 @@ linux,cma { size =3D <0 0x28000000>; linux,cma-default; }; + + m33_reserved: noncacheable-section@a8600000 { + reg =3D <0 0xa8600000 0 0x1000000>; + no-map; + }; + + rsc_table: rsc-table@1fff8000{ + reg =3D <0 0x1fff8000 0 0x1000>; + no-map; + }; + + vdev0vring0: vdev0vring0@aff00000 { + reg =3D <0 0xaff00000 0 0x8000>; + no-map; + }; + + vdev0vring1: vdev0vring1@aff08000 { + reg =3D <0 0xaff08000 0 0x8000>; + no-map; + }; + + vdev1vring0: vdev1vring0@aff10000 { + reg =3D <0 0xaff10000 0 0x8000>; + no-map; + }; + + vdev1vring1: vdev1vring1@aff18000 { + reg =3D <0 0xaff18000 0 0x8000>; + no-map; + }; + + vdevbuffer: vdevbuffer@a8400000 { + compatible =3D "shared-dma-pool"; + reg =3D <0 0xa8400000 0 0x100000>; + no-map; + }; }; =20 clock_ext_rmii: clock-ext-rmii { @@ -49,6 +85,16 @@ clock_ext_ts: clock-ext-ts { }; }; =20 +&cm33 { + mbox-names =3D "tx", "rx", "rxdb"; + mboxes =3D <&mu 0 1>, + <&mu 1 1>, + <&mu 3 1>; + memory-region =3D <&vdevbuffer>, <&vdev0vring0>, <&vdev0vring1>, + <&vdev1vring0>, <&vdev1vring1>, <&rsc_table>; + status =3D "okay"; +}; + &lpuart5 { /* console */ pinctrl-names =3D "default", "sleep"; @@ -92,6 +138,10 @@ ethphy: ethernet-phy@1 { }; }; =20 +&mu { + status =3D "okay"; +}; + &iomuxc1 { pinctrl_enet: enetgrp { fsl,pins =3D < --=20 2.37.1