i.mx8m plus, rpmsg , kick error -62

[RavenRen_sh]

Hi, senior software engineers, 
i.MX8M 
I'm try to run rpmsg pingpong demo on i.mx8mp, base on congatec-BSP 6.6.23-2.0.
always catch this error.
-------
[ 27.931613] imx_rpmsg_pingpong virtio0.rpmsg-openamp-demo-channel.-1.30: new channel: 0x400 -> 0x1e!
[ 28.033573] imx-rproc imx8mp-cm7: imx_rproc_kick: failed (1, err:-62)
[ 28.137571] imx-rproc imx8mp-cm7: imx_rproc_kick: failed (1, err:-62)
-------
the firmware is from yocto sdk origninal ,imx8mp_m7_TCM_rpmsg_lite_pingpong_rtos_linux_remote.bin. 
Any advice  may  guid me to running pingpong demo up?

Run this firmware from uboot via bootaux.
DTS major parts:

reserved-memory {

#address-cells = <2>;

#size-cells = <2>;

ranges;

                m7_reserved: m7@80000000 {

                        no-map;

                        reg = <0 0x80000000 0 0x1000000>;

                };

                vdev0vring0: vdev0vring0@55000000 {

                no-map;

                reg = <0 0x55000000 0 0x8000>;

                };

                vdev0vring1: vdev0vring1@55008000 {

                no-map;

                reg = <0 0x55008000 0 0x8000>;

                };

                vdev0buffer: vdev0buffer@55400000 {

                compatible = "shared-dma-pool";

                no-map;

                reg = <0 0x55400000 0 0x100000>;

                };

                rsc_table: rsc-table@550ff000 {

                no-map;

                reg = <0 0x550ff000 0 0x1000>;

                };

};

imx8mp-cm7 {
compatible = "fsl,imx8mn-cm7";

clocks = <&clk IMX8MP_CLK_M7_DIV>,
<&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_AUDPLL_ROOT>;
clock-names = "core", "audio";

mbox-names = "tx", "rx", "rxdb";
mboxes = <&mu 0 1
&mu 1 1
&mu 3 1>;

/*syscon = <&src>;*/

/* MUST match rsc_table region */
rsc-da = <0x550ff000>;

fsl,startup-delay-ms = <500>;

memory-region = <&m7_reserved>,<&vdev0buffer>,
<&vdev0vring0>,
<&vdev0vring1>,
<&rsc_table>;
status = "okay";
};

[RavenRen_sh]

dmesg | grep -E "rproc|rpmsg|virtio|mu|mailbox"
[ 0.000000] OF: reserved mem: initialized node mic_rpmsg@91000000, compatible id shared-dma-pool
[ 0.000000] OF: reserved mem: 0x0000000091000000..0x00000000910fffff (1024 KiB) nomap non-reusable mic_rpmsg@91000000
[ 0.000613] pid_max: default: 32768 minimum: 301
[ 0.041394] imx mu driver is registered.
[ 0.041413] imx rpmsg driver is registered.
[ 0.076492] iommu: Default domain type: Translated
[ 0.076498] iommu: DMA domain TLB invalidation policy: strict mode
[ 0.096977] kvm [1]: disabling GICv2 emulation
[ 2.196146] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 2.201466] Bluetooth: BNEP filters: protocol multicast
[ 2.211684] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
[ 2.644250] remoteproc remoteproc0: imx-rproc is available
[ 2.649842] remoteproc remoteproc0: attaching to imx-rproc
[ 2.665845] virtio_rpmsg_bus virtio0: rpmsg host is online
[ 2.679140] rproc-virtio rproc-virtio.1.auto: registered virtio0 (type 7)
[ 2.685941] remoteproc remoteproc0: remote processor imx-rproc is now attached
[ 3.667389] virtio_rpmsg_bus virtio0: creating channel rpmsg-openamp-demo-channel addr 0x1e
[ 38.533809] imx_rpmsg_pingpong virtio0.rpmsg-openamp-demo-channel.-1.30: new channel: 0x400 -> 0x1e!
[ 38.637604] imx-rproc imx8mp-cm7: imx_rproc_kick: failed (1, err:-62)
[ 38.741579] imx-rproc imx8mp-cm7: imx_rproc_kick: failed (1, err:-62)

[joanxie]

what's your test steps? if can reproduce this on the imx8mp evk board, pls tell me the detailed steps, let me reproduce this at first