[PATCH net-next v2 8/8] arch: arm64: dts: k3-am64*: Add rpmsg-eth node

MD Danish Anwar
2025-09-02T09:08:47Z

Add rpmsg-eth node to main_r5fss0_core0. This node describes the memory
region to be used for rpmsg ethernet communication. The commit adds
below changes,

- Adding new reserved memory region main_r5fss0_core0_memory_region_shm
- Adding rpmsg-eth node to main_r5fss0_core0 with memory-region as
main_r5fss0_core0_memory_region_shm

Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
---
arch/arm64/boot/dts/ti/k3-am642-evm.dts | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
index e01866372293..1e5ee9ac9966 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
@@ -61,7 +61,13 @@ main_r5fss0_core0_dma_memory_region: r5f-dma-memory@a0000000 {

main_r5fss0_core0_memory_region: r5f-memory@a0100000 {
compatible = "shared-dma-pool";
- reg = <0x00 0xa0100000 0x00 0xf00000>;
+ reg = <0x00 0xa0100000 0x00 0x300000>;
+ no-map;
+ };
+
+ main_r5fss0_core0_memory_region_shm: r5f-shm-memory@a0400000 {
+ compatible = "shared-dma-pool";
+ reg = <0x00 0xa0400000 0x00 0xc00000>;
no-map;
};

@@ -768,6 +774,9 @@ &main_r5fss0_core0 {
mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
memory-region = <&main_r5fss0_core0_dma_memory_region>,
<&main_r5fss0_core0_memory_region>;
+ rpmsg-eth {
+ memory-region = <&main_r5fss0_core0_memory_region_shm>;
+ };
};

&main_r5fss0_core1 {
--
2.34.1