TDA4VM: PCIE HOST CAN START on psdk6.2？

Hi Experts:

I'm working on a custom board with TDA4VM，pcie0 is host，when kernel starting ，below messging

[    2.070987] cdns-pcie-host d000000.pcie: missing "mem"

[    2.076614] cdns-pcie-host d800000.pcie: missing "mem"

[    2.082225] cdns-pcie-host e000000.pcie: missing "mem"

i look the k3-j271e-main.dtsi,it have 

pcie0_rc: pcie@d000000 {

                     compatible = "ti,j721e-cdns-pcie-host";

                     reg = <0x00 0x0d000000 0x00 0x00800000>,

                           <0x00 0x10000000 0x00 0x00001000>;

                     reg-names = "reg", "cfg";

i look the /dirver/pci/controller/pcie-candence-host.c,it have this code, but the dts dont have "mem" reg.

 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mem");

    if (!res)

        dev_err(dev, "missing \"mem\"\n");

My question is:

1, Which version of SDK can start normally？

2，what does "reg", "cfg"  "mem" mean？