P2040:How to access TBI-SGMII registers in linux?

[gouravjain]

Hi all,

In my custom board, which is based on P2040rdb, i want to change some TBI registers in linux. In order to disable TBI-phy autonegotiation. But i'm not getting how to access TBI registers. Basically serdes initialization should happen in dtsec_init_phy () before of_phy_connect () function  ["drivers/net/ethernet/freescale/dpa/mac-api.c"]

I have done changes in u-boot  function called: dtsec_configure_serdes () ["drivers/net/fm/eth.c"]

Can any one pls tell me any where is the equivalent function of dtsec_configure_serdes () in linux ?? or how to access TBI registers from linux.

Note: SDK: Linux-3.8.13-rt9-QorIQ-SDK-V1.4

Any help would be highly appreciated.

--

Gourav 

[yipingwang]

Hello Gourav,

Please refer to the section "/* Configure the TBI PHY Control Register */" in the function "DtsecInit" in Linux  Kernel source file drivers/net/ethernet/freescale/sdk_fman/Peripherals/FM/MAC/dtsec.c.

Have a great day,
TIC

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[gouravjain]

Hello Yiping,

Thanks for your help. This thread is bit old, and issue has been fixed already.

regards,

Gourav