[U-Boot] MACB TX timeout

[U-Boot] MACB TX timeout

[Jason Fu]

Hi,

I'm working on sama5d36 evaluation kit. From u-boot, I have set mac, ip. When I try to ping a ip address on LAN. I get "TX timeout". I can ping the ip successful with gmac0, but couldn't with macb0.
Did anyone find this issue before?

Log:
U-Boot> ping 192.168.10.11
macb0: PHY present at 0
macb0: Starting autonegotiation...
macb0: Autonegotiation complete
macb0: link up, 100Mbps full-duplex (lpa: 0xcd81)
Using macb0 device
macb0: TX timeout
macb0: TX timeout
ping failed; host 192.168.10.11 is not alive
U-Boot> ping 192.168.10.11
macb0: PHY present at 0
macb0:0 is connected to macb0.  Reconnecting to macb0
macb0: Starting autonegotiation...
macb0: Autonegotiation timed out (status=0x7849)
macb0: link down (status: 0x7849)
gmac0: PHY present at 7
gmac0: Starting autonegotiation...
gmac0: Autonegotiation complete
gmac0: link up, 100Mbps full-duplex (lpa: 0xcd81)
Using gmac0 device
host 192.168.10.11 is alive

Thanks,
Jason

[U-Boot] MACB TX timeout

[Andreas Bießmann]

Hi Jason,

On 08.02.15 07:52, Jason Fu wrote:
> Hi,
> 
> I'm working on sama5d36 evaluation kit. From u-boot, I have set mac, ip. When I try to ping a ip address on LAN. I get "TX timeout". I can ping the ip successful with gmac0, but couldn't with macb0.
> Did anyone find this issue before?

have you checked your errata notice [1] in chapter 7.1.1? If you have a
rev C base board you should add the impedance mismatch fix mentioned there.

Best regards

Andreas Bie?mann

[1]
http://www.atmel.com/Images/Atmel_11180_32-bit-Cortex-A5-Microcontroller_SAMA5D3-Series-EK_User-Guide.pdf

[U-Boot] : MACB TX timeout

[Jagan Teki]

Hi,

Did anyone find this TX timeout issue on macb(gmac)?
I observed this issue when i enable d-cache.

Log:
----
zynq-uboot> ping 10.10.70.101
gmac0: PHY present at 7
gmac0: link up, 1000Mbps full-duplex (lpa: 0x3800)
Using gmac0 device
gmac0: TX timeout
gmac0: TX timeout
ping failed; host 10.10.70.101 is not alive

Any help.!

--
Thanks,
Jagan.

[U-Boot] : MACB TX timeout

[Bo Shen]

Hi Jagan Teki,

On 7/5/2013 03:36, Jagan Teki wrote:
> Hi,
>
> Did anyone find this TX timeout issue on macb(gmac)?
> I observed this issue when i enable d-cache.
>
> Log:
> ----
> zynq-uboot> ping 10.10.70.101
> gmac0: PHY present at 7
> gmac0: link up, 1000Mbps full-duplex (lpa: 0x3800)
> Using gmac0 device
> gmac0: TX timeout
> gmac0: TX timeout
> ping failed; host 10.10.70.101 is not alive

Sure, this will happen, as the macb driver is not worked with d-cache 
enabled.
If you want to let the macb work with d-cache enable, you should modify 
the driver.

BTW, if you want to enable d-cache, the MMU must be enabled.

> Any help.!
>
> --
> Thanks,
> Jagan.

Best Regards,
Bo Shen

[U-Boot] : MACB TX timeout

[Jagan Teki]

Hi Bo Shen,

Thanks for your info.

On Fri, Jul 5, 2013 at 7:04 AM, Bo Shen <voice.shen@atmel.com> wrote:
> Hi Jagan Teki,
>
>
> On 7/5/2013 03:36, Jagan Teki wrote:
>>
>> Hi,
>>
>> Did anyone find this TX timeout issue on macb(gmac)?
>> I observed this issue when i enable d-cache.
>>
>> Log:
>> ----
>> zynq-uboot> ping 10.10.70.101
>> gmac0: PHY present at 7
>> gmac0: link up, 1000Mbps full-duplex (lpa: 0x3800)
>> Using gmac0 device
>> gmac0: TX timeout
>> gmac0: TX timeout
>> ping failed; host 10.10.70.101 is not alive
>
>
> Sure, this will happen, as the macb driver is not worked with d-cache
> enabled.
Can you point any existing driver that have a d-cache working.

> If you want to let the macb work with d-cache enable, you should modify the
> driver.
>
> BTW, if you want to enable d-cache, the MMU must be enabled.
Specific setup to enable to MMU, please point.
I see that we need to write dram_bank_mmu_setup() and
arm_init_domains() on d-cache enable code in
soc folders is that true? please let me know your views.

--
Thanks,
Jagan.

[U-Boot] : MACB TX timeout

[Bo Shen]

Hi Jagan,

On 7/5/2013 10:48, Jagan Teki wrote:
> Hi Bo Shen,
>
> Thanks for your info.
>
> On Fri, Jul 5, 2013 at 7:04 AM, Bo Shen <voice.shen@atmel.com> wrote:
>> Hi Jagan Teki,
>>
>>
>> On 7/5/2013 03:36, Jagan Teki wrote:
>>>
>>> Hi,
>>>
>>> Did anyone find this TX timeout issue on macb(gmac)?
>>> I observed this issue when i enable d-cache.
>>>
>>> Log:
>>> ----
>>> zynq-uboot> ping 10.10.70.101
>>> gmac0: PHY present at 7
>>> gmac0: link up, 1000Mbps full-duplex (lpa: 0x3800)
>>> Using gmac0 device
>>> gmac0: TX timeout
>>> gmac0: TX timeout
>>> ping failed; host 10.10.70.101 is not alive
>>
>>
>> Sure, this will happen, as the macb driver is not worked with d-cache
>> enabled.
> Can you point any existing driver that have a d-cache working.

I see the driver of ftgmac100 is doing the thing, but I am not sure 
whether the code is merged.

>> If you want to let the macb work with d-cache enable, you should modify the
>> driver.
>>
>> BTW, if you want to enable d-cache, the MMU must be enabled.
> Specific setup to enable to MMU, please point.
> I see that we need to write dram_bank_mmu_setup() and
> arm_init_domains() on d-cache enable code in
> soc folders is that true? please let me know your views.

I am sorry, no information can share with you at this moment.

> --
> Thanks,
> Jagan.
>

Best Regards,
Bo Shen