From: Show Man <therealshowman@yahoo•ca>
To: linuxppc-embedded@ozlabs•org
Subject: MPC8272 FCC2 MDIO on Port D and FS_ENET
Date: Mon, 11 Feb 2008 14:45:27 -0500 (EST) [thread overview]
Message-ID: <399508.89089.qm@web32709.mail.mud.yahoo.com> (raw)
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As part of the port of our device (MPC8271 based) from 2.6.23 using arch/ppc to 2.6.24 arch/powerpc, I've hit a road block in the past few days in trying to make FS_ENET (freescale)/CPM2 recognize the BCM5221 PHY, which means I can't get eth0 up and running.
It worked fine in 2.26.23 arch/ppc when configured as FEC_ENET.
As far as I can tell, the "dts" is fine for FCC2 (see below), with the proper pins connected to the device/phy:
mdio@10d60 {
device_type = "mdio";
compatible = "fsl,mpc8272ads-mdio-bitbang",
"fsl,mpc8272-mdio-bitbang",
"fsl,cpm2-mdio-bitbang";
reg = <10d60 14>;
#address-cells = <1>;
#size-cells = <0>;
fsl,mdio-pin = <1d>;
fsl,mdc-pin = <17>;
PHY0: ethernet-phy@0 {
interrupt-parent = <&PIC>;
interrupts = <31 8>;
reg = <4>;
device_type = "ethernet-phy";
};
};
ethernet@11320 {
device_type = "network";
compatible = "fsl,mpc8272-fcc-enet",
"fsl,cpm2-fcc-enet";
reg = <11320 20 8500 100 113b0 1>;
local-mac-address = [ 00 00 00 00 00 00 ];
interrupts = <21 8>;
interrupt-parent = <&PIC>;
phy-handle = <&PHY0>;
linux,network-index = <0>;
fsl,cpm-command = <16200300>;
};
During my debugging, it appears to be that the PHY is not detected during
drivers/net/phy/phy_device.c: get_phy_device(..)
Basically, the phy_id is 0xFFFFFFFF.
I'm going to try to put a probe on the MDIO/MDC lines later on, but I was wondering whether anyone would have any ideas as to what could be wrong.
thanks
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next reply other threads:[~2008-02-11 19:52 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-11 19:45 Show Man [this message]
2008-02-11 21:26 ` MPC8272 FCC2 MDIO on Port D and FS_ENET NM
2008-02-11 21:39 ` Scott Wood
2008-02-11 22:04 ` NM
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