From: Peng Fan <peng.fan@xxxxxxx>
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 <peng.fan@xxxxxxx>
---
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 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 = <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 @@ clock_ext_ts: clock-ext-ts {
};
};
+&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 @@ ethphy: ethernet-phy@1 {
};
};
+&mu {
+ status = "okay";
+};
+
&iomuxc1 {
pinctrl_enet: enetgrp {
fsl,pins = <
--
2.37.1
