OpenWrt Forum Archive

Topic: Porting router with MT7620a + RTL8367RB

The content of this topic has been archived on 2 May 2018. There are no obvious gaps in this topic, but there may still be some posts missing at the end.

Post #1
13hakta
11 Oct 2016, 11:17

Hello!

Please help in writing correct device tree for Zyxel Keenetic Viva. I can't make external switch working.
As I know it has MT7620a SoC and ethernet switch RTL8367RB connected to 5-th port of internal switch MT7530.
It's managed with MDIO.

Currently I have this code for device tree.

/dts-v1/;

#include "mt7620a.dtsi"

/ {
    compatible = "ralink,mt7620a-eval-board", "ralink,mt7620a-soc";
    model = "ZyXEL Keenetic Viva";

    gpio-leds {
        compatible = "gpio-leds";

        power {
            label = "kng_rc:green:power";
            gpios = <&gpio0 14 1>;
        };

        power_alert {
            label = "kng_rc:red:power";
            gpios = <&gpio0 10 1>;
        };

        wan {
            label = "kng_rc:green:wan";
            gpios = <&gpio0 7 1>;
        };

        wifi {
            label = "kng_rc:green:wifi";
            gpios = <&gpio0 11 1>;
        };

        usb {
            label = "kng_rc:green:usb";
            gpios = <&gpio0 8 1>;
        };
    };

    gpio-keys-polled {
        compatible = "gpio-keys";
        #address-cells = <1>;
        #size-cells = <0>;
        poll-interval = <20>;

        reset {
            label = "reset";
            gpios = <&gpio0 1 1>;
            linux,code = <0x101>;
        };

        wps {
            label = "wps";
            gpios = <&gpio0 2 1>;
            linux,code = <0x100>;
        };

        fn {
            label = "fn";
            gpios = <&gpio0 9 1>;
            linux,code = <0x102>;
        };
    };

    rtl8367rb {
        compatible = "realtek,rtl8367b";
        realtek,extif0 = <1 0 1 1 1 1 1 1 2>;
        gpio-sck = <&gpio0 1 0>;
        gpio-sda = <&gpio0 2 0>;
    };
};

&spi0 {
    status = "okay";

    m25p80@0 {
        #address-cells = <1>;
        #size-cells = <1>;
        compatible = "jedec,spi-nor";
        reg = <0>;
        linux,modalias = "m25p80", "en25q64";
        spi-max-frequency = <10000000>;

        partition@0 {
            label = "u-boot";
            reg = <0x0 0x30000>;
            read-only;
        };

        partition@30000 {
            label = "u-boot-env";
            reg = <0x30000 0x10000>;
            read-only;
        };

        factory: partition@40000 {
            label = "factory";
            reg = <0x40000 0x10000>;
            read-only;
        };

        partition@50000 {
            label = "firmware";
            reg = <0x50000 0xda0000>;
        };

        partition@df0000 {
            label = "config";
            reg = <0xdf0000 0x10000>;
        };

        partition@e00000 {
            label = "storage";
            reg = <0xe00000 0x200000>;
        };

        backup@50000 {
            label = "backup";
            reg = <0x50000 0xfb0000>;
            read-only;
        };

        full@0 {
            label = "full";
            reg = <0x0 0x1000000>;
            read-only;
        };

    };
};

&pinctrl {
    state_default: pinctrl0 {
        gpio {
            ralink,group = "i2c", "uartf", "rgmii1", "rgmii2";
            ralink,function = "gpio";
        };
    };
};

&ethernet {
    status = "okay";
    pinctrl-names = "default";
    pinctrl-0 = <&rgmii1_pins &rgmii2_pins>;
    mtd-mac-address = <&factory 0x00004>;

    port@5 {
        status = "okay";
        mediatek,fixed-link = <1000 1 1 1>;
        phy-mode = "rgmii";
        phy-handle = <&phy5>;
    };

    mdio-bus {
        status = "okay";

        phy5: ethernet-phy@5 {
            reg = <5>;
            phy-mode = "rgmii";
        };
    };
};

&gsw {
    mediatek,port4 = "gmac";
};

&wmac {
    ralink,mtd-eeprom = <&factory 0>;
};

&sdhci {
    status = "okay";
};

&ehci {
    status = "okay";
};

&ohci {
    status = "okay";
};

&pcie {
    status = "disabled";
};
Post #2
elektroman
11 Oct 2016, 18:00 
    ethernet@10100000 {
        status = "okay";
        mtd-mac-address = <&factory 0x4>;
        pinctrl-names = "default";
        pinctrl-0 = <&rgmii1_pins &rgmii2_pins &mdio_pins>;

        ...
Post #3
13hakta
11 Oct 2016, 20:57
elektroman wrote:
    ethernet@10100000 {
        status = "okay";
        mtd-mac-address = <&factory 0x4>;
        pinctrl-names = "default";
        pinctrl-0 = <&rgmii1_pins &rgmii2_pins &mdio_pins>;

        ...

still not working.

Post #5
elektroman
12 Oct 2016, 20:32

@yoq
Thanks for the hint for this ...
I actually stumbled across the same issue on my device Edimax BR-6478AC V2,
which was advertised in some wiki with a mt7530 switch and will not cooperate.
GBit links shwo up as 100MBit, after reading the SDK my device is also using this switch chip.

Post #6
13hakta
13 Oct 2016, 17:15

Well, so soon I'll begin to adapt driver present in current openwrt trunk to make it working with mdio.

Post #7
13hakta
29 Oct 2016, 12:53

Made working driver. Soon will publish.

Post #8
lawrencelin
15 Apr 2017, 19:50
13hakta wrote:

Made working driver. Soon will publish.


Hi, 13 hakta

Have any new update?

I have TRENDnet TEW-752DRU ,

TRENDnet TEW-752DRU
FCC ID: XU8TEW752DRU
wireless router    abgn   
MediaTek MT7620A @ 580 MHz    8 MiB    64 MiB   
MediaTek MT7620A 2x2:2, bgn   
Ralink RT5592EP 2x2:2, an Ant. conn: U.FL   
Realtek RTL8367RB    10/100/1000
4 LAN 1 WAN    USB 2.0    1 USB

Not one can make it work with openwrt, Please .help

Post #9
13hakta
16 Apr 2017, 10:28

Currently hosting code on github at 13hakta/source/tree/staging
One issue is remaining with determining exclusion for unattached port.

The discussion might have continued from here.