mtkhnat loaded but no ppe was found

[system1357]

Device is Arcadyan WG630223, nearly identical with MTK MT7621+MT7915 DBDC reference design.
I've tried to patch the dts and uci defaults as you've suggested
But after boot the module doesn't detect PPE, and no hwnat acceleration at all (CPU goes to 100% at 400Mbps), please help

WAN is at port4, LAN at port 2 and 3

dmesg:

[ 542.782005] mediatek_soc_hnat 1e100000.hnat: wan = eth1
[ 542.787547] mediatek_soc_hnat 1e100000.hnat: lan = eth0
[ 542.792758] mediatek_soc_hnat 1e100000.hnat: ppd = eth0
[ 542.798341] mediatek_soc_hnat 1e100000.hnat: gmac num = 2
[ 542.809524] mediatek_soc_hnat 1e100000.hnat: ext devices = wlan0
[ 542.815335] mediatek_soc_hnat 1e100000.hnat: ext devices = wlan1
[ 542.851014] mediatek_soc_hnat 1e100000.hnat: FOE entry number = 16384
[ 542.870583] mediatek_soc_hnat 1e100000.hnat: hwnat start

Original dts looks like this:

&gmac0 {
	nvmem-cells = <&macaddr_factory_fff0>;
	nvmem-cell-names = "mac-address";
};

&gmac1 {
	status = "okay";
	label = "wan";
	phy-handle = <&ethphy4>;

	nvmem-cells = <&macaddr_factory_fff0>;
	nvmem-cell-names = "mac-address";
};

&mdio {
	ethphy4: ethernet-phy@4 {
		reg = <4>;
	};
};

&switch0 {
	ports {
		port@2 {
			status = "okay";
			label = "lan2";
		};

		port@3 {
			status = "okay";
			label = "lan1";
		};
[hwnat_dts.txt](https://github.com/padavanonly/immortalwrt/files/10083579/hwnat_dts.txt)

	};
};
[orig_openwrt_dts.txt](https://github.com/padavanonly/immortalwrt/files/10083575/orig_openwrt_dts.txt)
[stockfw_dts.txt](https://github.com/padavanonly/immortalwrt/files/10083576/stockfw_dts.txt)

After patching:

&gmac0 {
	nvmem-cells = <&macaddr_factory_fff0>;
	nvmem-cell-names = "mac-address";
};

&gmac1 {
	nvmem-cells = <&macaddr_factory_fff0>;
	nvmem-cell-names = "mac-address";
};

&hnat {
        mtketh-wan = "eth1";
        mtketh-ppd = "eth0";
        mtketh-lan = "eth0";
	ext-devices = "wlan0","wlan1";
        mtketh-max-gmac = <2>;
        status = "okay";
};

&gsw {
	mediatek,mdio = <&mdio>;
	mediatek,portmap = "llllw";
	mediatek,mcm;
	mt7530,direct-phy-access;

	resets = <&rstctrl 2>;
	reset-names = "mcm";

	port5: port@5 {
		compatible = "mediatek,mt753x-port";
		reg = <5>;
		phy-mode = "rgmii";
		fixed-link {
			speed = <1000>;
			full-duplex;
		};
	};

	port6: port@6 {
		compatible = "mediatek,mt753x-port";
		reg = <6>;
		phy-mode = "trgmii";
		fixed-link {
			speed = <1000>;
			full-duplex;
		};
	};

	mdio-bus {
		#address-cells = <1>;
		#size-cells = <0>;
	};
};

&switch0 {
	/* must delete compatible property */
	/delete-property/ compatible;
};