TDA4VM: PCIE Ep mode transaction Issue

Part Number: TDA4VM

Hi, experts:

linux sdk version:  Version: 08.00.01.10

we have a custom board based on TDA4,  which need to be configured as PCIe endpoint device.

I've followed the link

https://software-dl.ti.com/jacinto7/esd/processor-sdk-linux-jacinto7/08_00_00_08/exports/docs/linux/Foundational_Components/Kernel/Kernel_Drivers/PCIe/PCIe_End_Point.html

when  i config like this :

cd /sys/kernel/config/pci_ep/
mkdir functions/pci_epf_test/func1
echo 0x104c > functions/pci_epf_test/func1/vendorid
echo 0xb00d > functions/pci_epf_test/func1/deviceid
echo 32 > functions/pci_epf_test/func1/msi_interrupts
echo 2 > functions/pci_epf_test/func1/msix_interrupts
ln -s functions/pci_epf_test/func1 controllers/d000000.pcie-ep/
echo 1 > controllers/d000000.pcie-ep/start

s32g can detect the endpoint  device :

root@s32g254aevb:~# [   37.754737] 003: pcieport 0000:02:01.0: pciehp: Slot(2): Card present
[   37.754754] 003: pcieport 0000:02:01.0: pciehp: Slot(2): Link Up
[   37.890618] 003: pci 0000:04:00.0: [104d:b50d] type 00 class 0xff0000
[   37.891371] 003: pci 0000:04:00.0: reg 0x10: [mem 0x5800000000-0x58000000ff]
[   37.891497] 003: pci 0000:04:00.0: reg 0x14: [mem 0x5800000000-0x58000001ff]
[   37.891620] 003: pci 0000:04:00.0: reg 0x18: [mem 0x5800000000-0x58000003ff]
[   37.891744] 003: pci 0000:04:00.0: reg 0x1c: [mem 0x5800000000-0x5800003fff]
[   37.891868] 003: pci 0000:04:00.0: reg 0x20: [mem 0x5800000000-0x580001ffff]
[   37.891992] 003: pci 0000:04:00.0: reg 0x24: [mem 0x5800000000-0x58000fffff]
[   37.895773] 003: pci 0000:04:00.0: supports D1
[   37.895780] 003: pci 0000:04:00.0: PME# supported from D0 D1 D3hot
[   37.895837] 003: pci 0000:04:00.0: PME# disabled
[   37.899382] 003: pci 0000:04:00.0: BAR 5: assigned [mem 0x5801600000-0x58016fffff]
[   37.899453] 003: pci 0000:04:00.0: BAR 4: assigned [mem 0x5801700000-0x580171ffff]
[   37.899507] 003: pci 0000:04:00.0: BAR 3: assigned [mem 0x5801720000-0x5801723fff]
[   37.899561] 003: pci 0000:04:00.0: BAR 2: assigned [mem 0x5801724000-0x58017243ff]
[   37.899615] 003: pci 0000:04:00.0: BAR 1: assigned [mem 0x5801724400-0x58017245ff]
[   37.899669] 003: pci 0000:04:00.0: BAR 0: assigned [mem 0x5801724600-0x58017246ff]
[   37.899727] 003: pcieport 0000:02:01.0: PCI bridge to [bus 04]
[   37.899756] 003: pcieport 0000:02:01.0:   bridge window [io  0x2000-0x2fff]
[   37.899839] 003: pcieport 0000:02:01.0:   bridge window [mem 0x5801600000-0x58017fffff]
[   37.899942] 003: pcieport 0000:02:01.0:   bridge window [mem 0x5800600000-0x58007fffff 64bit pref]

My question is :

1.since the pci_test can only use in the host device , how to test peic ep in the ep side ?

2.how to config ep's outbound so that i can write/read from ep to rc?