DP83867IR: Driver

Hi Kai,

Is the SOC using Linux? We have driver for DP83867 which is available in mainline Linux.

-Regards,
Aniruddha

Hi Aniruddha 

Ambarella SDK Linux Driver information as below ,may I know DP83867 support this version of driver ?

 

AMBA S5L 1.5 SDK

Linux 4.9.63+

Hi Aniruddha

1. Due to SOC need a 125MHz Clock input (reference design use KSZ9031) ,May I know how to use CLK_OUT program 125MHz ?

2. If use CLK_OUT for 125MHz ,May I know the linux driver need to modify (KSZ9031 use pin strap to do)

3. If linux driver doesn't install ,May I know how to make sure H/W is workable? or how to make sure this issue is cause by linux driver ?

4. Below attached file is schematic and register ,could you help to double confirm any register need to modify 

Thanks

DP83867 Register.docx

DP83867 schematic.pdf

Hi Aniruddha,
Customer try lookback function below
1. Write register 0x001F to 0x8000 to apply a software reset.
2. Write register 0x0000 to 0x0140 to force 1000BASE-T operation.
3. Write register 0x0032 to 0x00D3 to enable RGMII.
4. Write register 0x0016 to 0x0004 to enable digital loopback.

They got status register read back below,
0x0000 -> 0140
0x0001 -> 794d
0x0004 -> 01e1
0x0005 -> 0000
0x000A -> 7000 <==
0x0010 -> 1048
0x0011 -> ac02
0x0016 -> 0004
0x0017 -> 0040
0x0071 -> 0000
0x0072 -> 0000
It shows both Local/Remote receiver is ok but Link partner not capable of 100Base-T Full/Half Duplex,
Do you have ideal?

Thanks & Regards

Eddie

HI Aniruddha

Please kindly help to check this issue again

Thanks

Hello Kai,

Since the original question was resolved, i would recommend opening a new thread to help with your debug questions. Please include information about the DP83867 setup, link partner setup, and the problem that you are facing. New thread will help us with tracking your questions efficiently.

-Regards,
Aniruddha