[Ltib] Changed from Realtek to Marvell Ethernet switch

[Todd Sampson]

On a MPC5200 board that was using a Realtek RTL8305SC Ethernet switch, we needed to change to a Marvell 88E6065-A1-LAJ1I000.

 

The file at: ltib/rpm/BUILD/linux-2.6.26.3/arch/powerpc//boot/dts/m9000.dts

 

Was, (for the old switch):

 

                              …address@hidden {

                                             device_type = "network";

                                             compatible = "fsl,mpc5200b-fec","fsl,mpc5200-fec";

                                             reg = <0x3000 0x400>;

                                             local-mac-address = [ 00 00 00 00 00 00 ];

                                             interrupts = <2 5 0>;

                                             interrupt-parent = <&mpc5200_pic>;

                                             phy-handle = <&phy0>;

                              };

 

                              address@hidden {

                                             #address-cells = <1>;

                                             #size-cells = <0>;

                                             compatible = "fsl,mpc5200b-mdio", "fsl,mpc5200-mdio";

                                             reg = <0x3000 0x400>;    // fec range, since we need to setup fec interrupts

                                             interrupts = <2 5 0>;        // these are for "mii command finished", not link changes & co.

                                             interrupt-parent = <&mpc5200_pic>;

 

                                             phy0: address@hidden {

                                                            device_type = "ethernet-phy";

                                                            reg = <5>;                                          // ATS. Was 0, changed to 5 per Realtek advise. Fixed issue where eth0 had to be live for other ports to work.

                                             };

                              };…

 

 

The board with the old, Realtek switch used to boot up with:

 

net eth0: attached phy 5 to driver Generic PHY.

 

Now, the board, with the new Marvell switch boots up saying:

 

net eth0: phy_connect failed

net eth0: mpc52xx_fec_init_phy failed

IP_Config: Failed to open eth0

 

 

From:  https://www.kernel.org/doc/Documentation/devicetree/bindings/powerpc/fsl/mpc5200.txt

 

fsl,mpc5200-fec nodes

---------------------

The FEC node can specify one of the following properties to configure

the MII link:

- fsl,7-wire-mode - An empty property that specifies the link uses 7-wire

                    mode instead of MII

- current-speed   - Specifies that the MII should be configured for a fixed

                    speed.  This property should contain two cells.  The

                    first cell specifies the speed in Mbps and the second

                    should be '0' for half duplex and '1' for full duplex

- phy-handle      - Contains a phandle to an Ethernet PHY.

 

 

QUESTION:

Could you point me in the right direction? We were hoping that the MII connection between the CPU and the switch would all be the same but it’s looking like maybe I need to edit the dts file.

 

Any direction or hints would be appreciated!

 

Thanks!