On Mon, Apr 05, 2021 at 08:39:54PM +0200, Corentin Labbe wrote:
> mdio0: ethernet-phy {
Not relevant to the brokennes, but this should not be called
ethernet-phy. The example given in
Documentation/devicetree/bindings/net/mdio-gpio.txt is
mdio0: mdio
> compatible = "virtual,mdio-gpio";
> gpios = <&gpio0 22 GPIO_ACTIVE_HIGH>, /* MDC */
> <&gpio0 21 GPIO_ACTIVE_HIGH>; /* MDIO */
> #address-cells = <1>;
> #size-cells = <0>;
> phy0: ethernet-phy@1 {
> reg = <1>;
> device_type = "ethernet-phy";
> };
> };
So you are using a bit-banging MDIO bus.
> gpio0: gpio@4d000000 {
> pinctrl-names = "default";
> pinctrl-0 = <&gpio0_default_pins>;
> };
and here is the gpio controller.
> ethernet@60000000 {
> status = "okay";
> ethernet-port@0 {
> phy-mode = "rgmii";
> phy-handle = <&phy0>;
> };
> ethernet-port@1 {
> /* Not used in this platform */
> };
> };
and this look O.K.
> libphy: Fixed MDIO Bus: probed
> mdio-gpio ethernet-phy: failed to get alias id
That does not look too good. But it is just a warning.
if (pdev->dev.of_node) {
bus_id = of_alias_get_id(pdev->dev.of_node, "mdio-gpio");
if (bus_id < 0) {
dev_warn(&pdev->dev, "failed to get alias id\n");
bus_id = 0;
}
If you look at the example in the documentation, it has
aliases {
mdio-gpio0 = &mdio0;
};
If you add that, i guess this will go away.
> libphy: GPIO Bitbanged MDIO: probed
> tun: Universal TUN/TAP device driver, 1.6
> gmac-gemini 60000000.ethernet: Ethernet device ID: 0x000, revision 0x1
> gemini-ethernet-port 60008000.ethernet-port: probe 60008000.ethernet-port ID 0
> gemini-ethernet-port 60008000.ethernet-port: using a random ethernet address
> RTL8211B Gigabit Ethernet gpio-0:01: attached PHY driver
> (mii_bus:phy_addr=gpio-0:01, irq=POLL)
So a realtek PHY has been found on the MDIO bus. Good.
> gemini-ethernet-port 60008000.ethernet-port eth0: irq 30, DMA @ 0x0x60008000,
> GMAC @ 0x0x6000a000
and everything looks good.
> gemini-ethernet-port 6000c000.ethernet-port: probe 6000c000.ethernet-port ID 1
> gemini-ethernet-port 6000c000.ethernet-port: using a random ethernet address
> gemini-ethernet-port 6000c000.ethernet-port (unnamed net_device)
> (uninitialized): PHY init failed
And now it seems to of all gone horribly wrong :-(
This is the second Ethernet interface, the one you have commented as
/* Not used in this platform */
I _think_ you just need to delete the entry, otherwise it tried to
probe it. And then that probe fails, it looks like it also fails the
working interface :-(
> 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue qlen 1000
> link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
> inet 127.0.0.1/8 scope host lo
> valid_lft forever preferred_lft forever
> inet6 ::1/128 scope host
> valid_lft forever preferred_lft forever
> 2: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 1000
> link/ether b6:95:3c:18:98:62 brd ff:ff:ff:ff:ff:ff
> 3: sit0@NONE: <NOARP> mtu 1480 qdisc noop qlen 1000
> link/sit 0.0.0.0 brd 0.0.0.0
> # udhcpc -i eth0
> udhcpc: started, v1.33.0
> gmac-gemini 60000000.ethernet: allocate 512 pages for queue
> gemini-ethernet-port 60008000.ethernet-port eth0: Unsupported PHY speed (-1)
> on gpio-0:01
> gemini-ethernet-port 60008000.ethernet-port eth0: Link is Down
> gemini-ethernet-port 60008000.ethernet-port eth0: link flow control: none
> udhcpc: socket: Address family not supported by protocol
> # gemini-ethernet-port 60008000.ethernet-port eth0: Link is Up - 1Gbps/Full -
> flow control rx/tx
> gemini-ethernet-port 60008000.ethernet-port eth0: link flow control: tx
> IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
>
> # udhcpc -i eth0
> udhcpc: started, v1.33.0
> udhcpc: socket: Address family not supported by protocol
That suggests the kernel you have build does not have PF_PACKET.
Enable CONFIG_PACKET_DIAG.
Andrew
