Phy is Not comfortable

k.s shin

Other Parts Discussed in Thread: TCI6636K2H

Hello

I have a problem my custom board based on TCI6636K2H and SGII1 port is connected Marvell 88e111 Phy chip. not to use MDIO pin. and I use u-boot made for K2HK evm.

I set my u-boot Config has_mdio = 0, smgii0_link_type is 4(SGMII_LINK_MAC_PHY_FORCED) linked in this document. but u-boot network works not comfortable.

http://processors.wiki.ti.com/index.php/MCSDK_UG_Chapter_Exploring#Design.2FImplementation_Notes

-----------------------------------------------------------------------------------------------

Filename '//uImage-keystone-evm.bin'.

Load address: 0x88000000
Loading: ####T #############T #####T ###T ######T ####T ##############################
#################T ################################################
#T ############################T ##T #####T ####T ##T #######################
#################################################################
#######T #########################T ########T ##################T #######
#################T ##################T T #######T ###############T #######T #
###############################T ###########T ##T #####################
##################################T ###############################
###################T ##T ############################################
#####T ####T #############################################T ##########T ##
#########################T #############T #########################T ##
###################T ######T ###T ######################T ####T T ###########
16.6 KiB/s

-----------------------------------------------------

It have too many time out. and baud rate is very low. My board connected Linux Host on LAN port, directly.

I need your help.

Thank you

Regards.

over 11 years ago

0 Raja over 11 years ago

TI__Guru* 81335 points

Hi,

Have you tried booting the linux in nfs boot? Is it working fine?

I understand that you have connected board and linux host directly. Is my understanding correct?

I would suggest you to try with lower ethernet speed to check whether the issue persists or not.

Thank you.

0 k.s shin over 11 years ago in reply to Raja

Expert 2115 points

Hello

Yes. I want to use network boot mode.

I try to set several speed rate. I find good mode.

10Mb/Full duplex mode in my linux host is very good working.

and Can I use 1000Mb mode in my board??

Thank you.

Regards.

0 Raja over 11 years ago in reply to k.s shin

TI__Guru* 81335 points

Hi,

I mean to change the ethernet speed rate of EVM by building the u-boot source.

Thank you.

0 k.s shin over 11 years ago in reply to Raja

Expert 2115 points

Hello

I set gigabit mode on SGMII CONTROL REGISTER and MAC CONTROL REGISTER by forced. but the result is same.

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Phy is Not comfortable