[U-Boot] [PATCH] Add CONFIG_GMAC_TX_DELAY=4 for OlinuXino Lime2

[Michael Haas]

Am 22. März 2016 09:57:16 MEZ, schrieb Hans de Goede <hdegoede at redhat.com>:
>Hi,
>
>On 22-03-16 09:46, Peter Korsgaard wrote:
>>>>>>> "Hans" == Hans de Goede <hdegoede at redhat.com> writes:
>>
>> Hi,
>>
>>   > Oh good catch, so I believe that we should submit a patch to the
>u-boot
>>   > realtek phy driver which:
>>
>>   > 1) Adds a seperate init function for the RTL8211C
>>   > 2) In that function set the force master mode bit and then
>>   >    call the init function currently used for RTL8211C and others,
>>   >    this assumes that the more generic init function will not
>reset
>>   >    the force master mode bit.
>>
>> So what happens if you connect two of these boards together without a
>> switch in between? Will they be able to autonegotiate?
>
>Likely not, but without this fix, they would and they would have an
>unreliable connection. Arguably no connection is better then an
>unreliable one.
>
>Regards,
>
>Hans

I assume that forcing the link to 100mbps would work for this case. After all, the fix should only apply for GBit mode.