Linux/PHYTC-3P-PHYCORE-AM335X: Link speed

i think i entered wrong part number but this board has am335x processor !!

Part Number: PROCESSOR-SDK-AM335X

Tool/software: Linux

PRCHECK# dhcp
link up on port 0, speed 10, half duplex
link up on port 0, speed 10, half duplex
BOOTP broadcast 1
BOOTP broadcast 2

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

PRCHECK# mii dump 1 0
0. (3100) -- PHY control register --
(8000:0000) 0.15 = 0 reset
(4000:0000) 0.14 = 0 loopback
(2040:2000) 0. 6,13 = b01 speed selection = 100 Mbps
(1000:1000) 0.12 = 1 A/N enable
(0800:0000) 0.11 = 0 power-down
(0400:0000) 0.10 = 0 isolate
(0200:0000) 0. 9 = 0 restart A/N
(0100:0100) 0. 8 = 1 duplex = full
(0080:0000) 0. 7 = 0 collision test enable
(003f:0000) 0. 5- 0 = 0 (reserved)

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

IP is not getting to board , i have to set it for speed 10, full duplex, how to set it ??

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

LOG :

[ 111.895312] libphy: PHY not found
[ 111.898758] net eth0: phy "" not found on slave 1, err -19
[ 111.910950] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 121.912955] Waiting up to 110 more seconds for network.
[ 131.912961] Waiting up to 100 more seconds for network.
[ 141.922957] Waiting up to 90 more seconds for network.
[ 151.922961] Waiting up to 80 more seconds for network.
[ 152.883719] cpsw 4a100000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 152.891916] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 152.906653] Sending DHCP requests .
[ 154.883608] cpsw 4a100000.ethernet eth0: Link is Down
[ 155.592915] ..
[ 164.883718] cpsw 4a100000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 166.883624] cpsw 4a100000.ethernet eth0: Link is Down
[ 168.512911] ..
[ 203.883700] cpsw 4a100000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 205.883584] cpsw 4a100000.ethernet eth0: Link is Down
[ 208.052918] .
[ 220.883699] cpsw 4a100000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 222.883581] cpsw 4a100000.ethernet eth0: Link is Down
[ 225.883719] cpsw 4a100000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 227.883578] cpsw 4a100000.ethernet eth0: Link is Down
[ 238.052918] timed out!
[ 238.090149] IP-Config: Retrying forever (NFS root)...
[ 238.095529] net eth0: initializing cpsw version 1.12 (0)
[ 238.100891] net eth0: initialized cpsw ale version 1.4
[ 238.106165] net eth0: ALE Table size 1024
[ 238.183312] net eth0: phy found : id is : 0x20005c90

Please post what Linux version you are using. Also complete this checklist and post the results here: processors.wiki.ti.com/.../5x_CPSW

Kernel version 4.4.32-gadde2ca9f8
Arago based filesytem

i have to boot from nfs
i used this commands
-------------------------------------------------------------------
setenv netboot 'echo Booting from network ...; setenv autoload no; run netloadimage; run netloadfdt; run netargs; bootz ${loadaddr} - ${fdtaddr}';
setenv netargs 'setenv bootargs console=${console} ${optargs} root=/dev/nfs nfsroot=<SERVERIP>:${rootpath},${nfsopts} rw ip=dhcp';
setenv bootfile zImage; setenv fdtfile am335x-prcheck.dtb;
setenv serverip <SERVERIP>;
setenv rootpath <FileSystem>;
run netboot
-------------------------------------------------------------------

to enter these commands i have to get IP of the device through "dhcp" command and it shows


-------------------------------------------------------------------
U-Boot 2016.05-g9c1d5f2-dirty (Nov 09 2018 - 16:17:20 -0500)

CPU : AM335X-GP rev 2.1
Model: TI AM335x EVM
Watchdog enabled
DRAM: 512 MiB
NAND: 512 MiB
MMC: initializing MMC : 0
probing MMCs
Probing MMC 2
return from mmc device -19
OMAP SD/MMC: 0, OMAP SD/MMC: 1
Doing preinit
Card did not respond to voltage select!
** Bad device mmc 0 **
Using default environment

<ethaddr> not set. Validating first E-fuse MAC
Net: RMII mode configure for PHY 1
cpsw, usb_ether
Press SPACE to abort autoboot in 2 seconds
PRCHECK# dhcp
cpsw Waiting for PHY auto negotiation to complete.. done
link up on port 0, speed 100, full duplex
link up on port 0, speed 100, full duplex
BOOTP broadcast 1
BOOTP broadcast 2
BOOTP broadcast 3
BOOTP broadcast 4
BOOTP broadcast 5
BOOTP broadcast 6
BOOTP broadcast 7
BOOTP broadcast 8
BOOTP broadcast 9
BOOTP broadcast 10
BOOTP broadcast 11
BOOTP broadcast 12
BOOTP broadcast 13
BOOTP broadcast 14
BOOTP broadcast 15
BOOTP broadcast 16
BOOTP broadcast 17
BOOTP broadcast 18
BOOTP broadcast 19
BOOTP broadcast 20
BOOTP broadcast 21
BOOTP broadcast 22
BOOTP broadcast 23
BOOTP broadcast 24
BOOTP broadcast 25
BOOTP broadcast 26
BOOTP broadcast 27
BOOTP broadcast 28
BOOTP broadcast 29

Retry time exceeded; starting again
-------------------------------------------------------------------
PRCHECK# mii info
PHY 0x01: OUI = 0x80017, Model = 0x09, Rev = 0x00, 10baseT, HDX
-------------------------------------------------------------------
PRCHECK# mii dump 1 0
0. (3100) -- PHY control register --
(8000:0000) 0.15 = 0 reset
(4000:0000) 0.14 = 0 loopback
(2040:2000) 0. 6,13 = b01 speed selection = 100 Mbps
(1000:1000) 0.12 = 1 A/N enable
(0800:0000) 0.11 = 0 power-down
(0400:0000) 0.10 = 0 isolate
(0200:0000) 0. 9 = 0 restart A/N
(0100:0100) 0. 8 = 1 duplex = full
(0080:0000) 0. 7 = 0 collision test enable
(003f:0000) 0. 5- 0 = 0 (reserved)
-------------------------------------------------------------------

I have to set it 10 mbps with full duplex

Hi,

The PHY is Auto-negotiating to 100Mbps. What is the need for 10Mbps?

You may be able to set the bit rate to 10Mbps but you will have do that configuration in the PHY driver code depending on the PHY you are using and have to restart the auto-negotiation process.

You could also redo the HW strapping that sets the configuration on the PHY.

Best Regards,
Schuyler

Hi,
Were you able to solve the issue?
Best Regards,
Schuyler