Fixed PHY and MPC832x based boards don't work

Vitaly Bordug vitb at kernel.crashing.org
Mon May 14 06:36:33 EST 2007


On Sun, 13 May 2007 16:39:30 +0200
Joakim Tjernlund wrote:

> Trying to make the Fixed PHY work under my 832x based board on current
> linus tree without success. Earlier kernels with custom PHY code for
> ucc_geth work without any special tricks.
> 
> If I enable the FIXED_MII_100_FDX option I get:
> ls bus/mdio_bus/devices/
> fixed at 100:1@ 
> 
> but ucc_geth wants its PHYs under 
> ls -l bus/of_platform/devices/*phy*
> lrwxrwxrwx    1 root     root            0 May 12 17:32
> bus/of_platform/devices/ethernet-p hy.1
> -> ../../../devices/e0100000.qe/e0102320.mdio/ethernet-phy.1/
> lrwxrwxrwx    1 root     root            0 May 12 17:32
> bus/of_platform/devices/ethernet-p hy.3
> -> ../../../devices/e0100000.qe/e0102320.mdio/ethernet-phy.3/
> lrwxrwxrwx    1 root     root            0 May 12 17:32
> bus/of_platform/devices/fixed-phy. 2
> -> ../../../devices/e0100000.qe/e0102320.mdio/fixed-phy.2/ These are
> 3 PHYs I just added in the DTS tree:
> 
> 		mdio at 2320 {
> 			#address-cells = <1>;
> 			#size-cells = <0>;
> 			reg = <2320 18>;
> 			device_type = "mdio";
> 			compatible = "ucc_geth_phy";
> 
> 			phy1: ethernet-phy at 18 {
> 				linux,phandle = <212000>;
> 				reg = <18>; // 24
> 				device_type = "ethernet-phy";
> 				interface = <3>; //ENET_100_MII
> 			};
> 			phy2: fixed-phy at 64 {
> 				linux,phandle = <212001>;
> 				reg = <d#100>;
> 				device_type = "ethernet-phy";
> 			};
> 			phy3: ethernet-phy at 19 {
> 				linux,phandle = <212002>;
> 				interrupt-parent = <700>;
> 				interrupts = <12 2>;
> 				reg = <19>; // 25
> 				device_type = "ethernet-phy";
> 				interface = <3>; //ENET_100_MII
> 			};
> 		};
> 
> How do I add a fixed PHY so that ucc_geth finds it?
> 
well I guess ucc stuff follows gianfar trend in mdio bus specification for the phy.
So, it would look like %d:%d or something like that.

Can you please dump the whole dts here?
>  Jocke
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-- 
Sincerely, Vitaly




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