We have built a new board based on the PPC440EPx. We are using an SMII-mode phy for the ethernet.
The .dts file started as the one for Sequoia, and I have changed the phy specifier to phy-mode = "smii" - I've also removed the has-mdio property from RGMII0. The ethernet is working in U-Boot, but when Linux tries to start the emac I get: PPC 4xx OCP EMAC driver, version 3.54 MAL v2 /plb/mcmal, 2 TX channels, 2 RX channels ZMII /plb/opb/emac-z...@ef600d00 initialized RGMII /plb/opb/emac-rg...@ef601000 initialized without MDIO support /plb/opb/emac-z...@ef600d00: bridge in SMII mode /plb/opb/emac-rg...@ef601000: unsupported settings ! /plb/opb/emac-rg...@ef601000: unsupported settings ! and the ethernet is not functional. I don't see any example .dts files for smii mode. If anyone can tell me what the .dts settings should be for this configuration, I'd appreciate it. The kernel version is 2.6.28.7 - I know that is a bit old now, but hopefully I can still make progress with it. Here is the whole .dts section for reference: ZMII0: emac-z...@ef600d00 { compatible = "ibm,zmii-440epx", "ibm,zmii"; reg = <0xef600d00 0x0000000c>; }; RGMII0: emac-rg...@ef601000 { compatible = "ibm,rgmii-440epx", "ibm,rgmii"; reg = <0xef601000 0x00000008>; /* has-mdio; */ }; EMAC0: ether...@ef600e00 { device_type = "network"; compatible = "ibm,emac-440epx", "ibm,emac4"; interrupt-parent = <&EMAC0>; interrupts = <0x0 0x1>; #interrupt-cells = <1>; #address-cells = <0>; #size-cells = <0>; interrupt-map = </*Status*/ 0x0 &UIC0 0x18 0x4 /*Wake*/ 0x1 &UIC1 0x1d 0x4>; reg = <0xef600e00 0x00000074>; local-mac-address = [000000000000]; mal-device = <&MAL0>; mal-tx-channel = <0>; mal-rx-channel = <0>; cell-index = <0>; max-frame-size = <9000>; rx-fifo-size = <4096>; tx-fifo-size = <2048>; phy-mode = "smii"; phy-map = <0x00000000>; zmii-device = <&ZMII0>; zmii-channel = <0>; rgmii-device = <&RGMII0>; rgmii-channel = <0>; has-inverted-stacr-oc; has-new-stacr-staopc; }; _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev