[U-Boot] AR8031 Ethernet on mx6

[Dirk Behme <dirk.behme@de.bosch.com>]

On 15.09.2012 05:06, Fabio Estevam wrote:
> Hi Jason,
> 
> I don't have a mx6qarm2 and would like to ask you if you could please
> confirm that Ethernet is functional on mx6qarm2 running the latest
> U-boot.
> 
> I am trying to get Ethernet working on mx6qsabresd, which also uses
> the same AR8031 PHY, but it is not working yet.
> 
> AR8031 is supposed to output a 125MHz clock to mx6q, but I see a 25MHz
> clock instead.
> 
> I do the same PHY init as in mx6qarm2.
> 
> Any ideas/suggestions are appreciated.

Trying the recent mainline U-Boot (a6f0c4faa4c65a7b7048b) on an ARM2 
board we get [1] after manually setting an ethaddr and the IP addresses.

Sometimes U-Boot seems to hang after 'MMC:   FSL_SDHC: 0, FSL_SDHC: 1' 
but this might be an other issue.

Best regards

Dirk

[1]

U-Boot 2012.07-00490-ga6f0c4f (Sep 17 2012 - 10:01:46)

CPU:   Freescale i.MX6Q rev1.0 at 792 MHz
Reset cause: POR
Board: MX6Q-Armadillo2
DRAM:  2 GiB
WARNING: Caches not enabled
MMC:   FSL_SDHC: 0, FSL_SDHC: 1
In:    serial
Out:   serial
Err:   serial
Net:   FEC
Hit any key to stop autoboot:  0
MX6QARM2 U-Boot > printenv
baudrate=115200
bootargs=console=ttymxc3,115200 root=/dev/nfs ip=dhcp nfsroot=:,v3,tcp
bootcmd=mmc dev ${mmcdev};if mmc rescan ${mmcdev}; then if run 
loadbootscript; then run bootscript; else if run loi
bootdelay=3
bootscript=echo Running bootscript from mmc ...; source
console=ttymxc3
ethact=FEC
ethaddr=00:19:B8:00:E5:4E
fdt_high=0xffffffff
initrd_high=0xffffffff
ipaddr=172.17.0.1
loadaddr=0x10800000
loadbootscript=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};
loaduimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${uimage}
mmcargs=setenv bootargs console=${console},${baudrate} root=${mmcroot}
mmcboot=echo Booting from mmc ...; run mmcargs; bootm
mmcdev=1
mmcpart=2
mmcroot=/dev/mmcblk0p3 rootwait rw
netargs=setenv bootargs console=${console},${baudrate} root=/dev/nfs 
ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp
netboot=echo Booting from net ...; run netargs; dhcp ${uimage}; bootm
script=boot.scr
serverip=172.17.0.6
stderr=serial
stdin=serial
stdout=serial
uimage=uImage
Environment size: 1125/8188 bytes
MX6QARM2 U-Boot > tftpboot ${loadaddr} uImage
Using FEC device
TFTP from server 172.17.0.6; our IP address is 172.17.0.1
Filename 'uImage'.
Load address: 0x10800000
Loading: 
################################################################# 
   #################################################################
#################################################################
#############################################################
done
Bytes transferred = 3756664 (395278 hex)
MX6QARM2 U-Boot >