DP83640: DP83640 - linux device tree support

Prabhakar K

Part Number: DP83640

Hi,
We are using DP83640 PHY chip for our ATMEL SAMA5D36 board ( for eth0 and eth1 )

The kernel output log:

macb f0028000.ethernet: invalid hw address, using random
libphy: MACB_mii_bus: probed
pps pps0: new PPS source ptp0
macb f0028000.ethernet eth0: Cadence GEM rev 0x00020119 at 0xf0028000 irq 51 ......
macb f0028000.ethernet eth0: attached PHY driver [NatSemi DP83640] (mii_bus:phy)

macb f802c000.ethernet: invalid hw address, using random
libphy: MACB_mii_bus: probed
pps pps1: new PPS source ptp1
macb f802c000.ethernet eth1: Cadence MACB rev 0x0001010c at 0xf802c000 irq 52 ....
macb f802c000.ethernet eth1: attached PHY driver [NatSemi DP83640] (mii_bus:phy)

Kindly guide us on how to use/update dp83640 related configuration with the device tree. Basically we are planning to implement PTP with PHP support..We require relevant support to update and configure php with linux...

thanks

Prabhakar,k

over 4 years ago

+1 Prabhakar K over 4 years ago

Prodigy 50 points

Updated log for the above said issue...

macb f0028000.ethernet: invalid hw address, using random
libphy: MACB_mii_bus: probed
pps pps0: new PPS source ptp0
macb f0028000.ethernet eth0: Cadence GEM rev 0x00020119 at 0xf0028000 irq 51 (5e:6c:b0:c1:a4:8b)
macb f0028000.ethernet eth0: attached PHY driver [NatSemi DP83640] (mii_bus:phy_addr=f0028000.etherne:01, irq=-1)

macb f802c000.ethernet: invalid hw address, using random
libphy: MACB_mii_bus: probed
pps pps1: new PPS source ptp1
macb f802c000.ethernet eth1: Cadence MACB rev 0x0001010c at 0xf802c000 irq 52 (be:00:92:fd:15:0b)
macb f802c000.ethernet eth1: attached PHY driver [NatSemi DP83640] (mii_bus:phy_addr=f802c000.etherne:05, irq=-1)

Kindly guide us on how to use/update dp83640 related configuration with the device tree. Basically we are planning to implement PTP with PPS support..We require relevant support to update and configure PTP in linux...

0 Lucas Wolter over 4 years ago in reply to Prabhakar K

TI__Mastermind 28110 points

Hi Prabhakar,

Please refer to this thread for examples of how to implement PTP: https://e2e.ti.com/support/interface-group/interface/f/interface-forum/189289/ptpd2-driver-for-dp83630

Thanks,

Lucas

All information in this correspondence and in any related correspondence is provided “as is” and “with all faults”, and it is subject to TI’s Important Notice (http://www.ti.com/corp/docs/legal/important-notice.shtml).

0 Prabhakar K over 4 years ago in reply to Lucas Wolter

Prodigy 50 points

Hi Lucas,

As per the data of DP83640, We can achieve to PTP implementation in linux. But we could able to find the procedure to implement same in linux, No application notes available..

PPS input support enabling to DP83640 driver
PPS output from DP83640 to check the accuracy.
Testing the accuracy of sub-30 ns compliance to the PTP.

thanks

Prabhakar.k

0 Lucas Wolter over 4 years ago in reply to Prabhakar K

TI__Mastermind 28110 points

Hi Prabhakar,

Here is a software design guide for the DP83640: https://www.ti.com/tool/DP83640SW-LIB

Thanks,

Lucas

0 Lucas Wolter over 4 years ago in reply to Lucas Wolter

TI__Mastermind 28110 points

Hi Prabhakar,

I haven't heard back from you in a while so I'll be closing this thread. Please open a new thread if you have further questions.

Thanks,

Lucas

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DP83640: DP83640 - linux device tree support