DP83867IR: Not working in u-boot.

Hi GukHyun,

What is the intended speed of operation?

Can you please let me know why Mirror mode is enabled and aneg is disabled on your custom board?

Can you please share a block diagram/image of your connections?

--
Regards

Thank you for reply.

I already attached a schematics pdf in first question. →  ETHERNET.pdf

Do you need another document such as a block diagram/image? 

How did you know the the mirror mode state or aneg state?

From register picture I showed?

I don't know the intended speed.. I just connected it in RGMII.

Do you mean that I should configure something in registers or strap for speed of operation?

Really thanks!!

Hi GukHyun,

I was able to see that the mirror mode is enabled from the schematic.

I couldn't completely understand how and where you have connected DP83867 and how you are reading the registers. A block diagram or a detailed explanation of connections will help.

--
Regards,
Gokul.

Hi, Koraganji.

Oh, I found the mirror mode in my schematic.

Let me give some time to check if the mirror mode is a problem.

Thank you.

Hi GukHyun,

Please get back to me here when you see any other issue.

--
Regards,
Gokul.

Hi Gokul,

Thank you for your commnet.

I configured a register (0x0031 [0]) to disable mirror mode in u-boot instead of modifying the circuit and it works.

For a next step, when I connect ethernet cable from PC to the board, I checked establishing the auto-negotiation and linking up.

After configuring the ipaddr and netmask, I tried to send ping to a PC, but it failed like:

The view of wireshark is:

The 0f:a3:be:e8:6c:d0 is am335x's mac address, I guess.

I know that before sending PING packet, there should be a APR exchange for building MAC table.

But the packet is not a ARP and it is not even clear protocol.

Could you give me a help?

In fact, I am not sure the issues are included in your interface team.

Otherwise, please forward to processor team.. 

Really thanks for your comment!!.

Regards,

LEE.

Hi Gokul,

I had a little progress.

In 100Mbps, I can check in wireshark that the board sends ARP packet and the PC replied for it.

(I guess it may be an impedance matching issue. I will check it later..)

But, I think the board cannot receive the ARP packet sent from PC.

 So, I wonder if there are some problems in my DTS file and board.c file.

Please check it...

I have one DP83867 PHY to EMAC1, and no PHY connected to EMAC0

The one DP83867 PHY's phy address is 0, which is shown in schematic.

&mac {
        pinctrl-names = "default", "sleep";
        pinctrl-0 = <&cpsw_default>;
        pinctrl-1 = <&cpsw_sleep>;
        dual_emac = <1>;
        status = "okay";
};

&davinci_mdio {
        pinctrl-names = "default", "sleep";
        pinctrl-0 = <&davinci_mdio_default>;
        pinctrl-1 = <&davinci_mdio_sleep>;
        status = "okay";

        ethphy0: ethernet-phy@1 {
                reg = <0>;
        };

        ethphy1: ethernet-phy@0 {
                reg = <0>;
        };
};

&cpsw_emac0 {
        phy-handle = <&ethphy0>;
        phy-mode = "rgmii-id";
        dual_emac_res_vlan = <1>;
};

&cpsw_emac1 { 
        phy-handle = <&ethphy1>;
        phy-mode = "rgmii-id";
        dual_emac_res_vlan = <2>;
};

struct cpsw_slave_data slave_data[] = {
        {
                .slave_reg_ofs  = CPSW_SLAVE0_OFFSET,
                .sliver_reg_ofs = CPSW_SLIVER0_OFFSET,
                .phy_addr       = 1,
        },
        {
                .slave_reg_ofs  = CPSW_SLAVE1_OFFSET,
                .sliver_reg_ofs = CPSW_SLIVER1_OFFSET,
                .phy_addr       = 0,
        },
};

In other hand, When I see the APR request in detail, the mac address was 30:e2:03:c6:06:a5.

But, when I printed 'ethaddr' which is emac0's MAC and 'eth1addr' which is emac1's MAC, it is shown like:

ethaddr=30:e2:83:c6:06:a5 

eth1addr=30:e2:83:c6:06:a7

I guess the emac0 sends ARP packet.

I am confused..

Really thanks..

Regards, Lee

Hi Lee,

This can be supports by our peers in the processors team. Please let me loop-in them.

--
Regards,
Gokul.

Hi! The subject owner is currently out of the office. Please allow a couple of days for a response. Thanks.

Yes, I will wait.

Thanks

Hi, I'm looping in my colleague on his input.