[U-Boot] [PATCH v3 0/9] From Simon:

[Simon Glass]

Hi Heiko,

On 30 November 2016 at 04:52, Heiko Stübner <heiko at sntech.de> wrote:
> Am Dienstag, 29. November 2016, 19:47:10 schrieb Simon Glass:
>> Hi Heiko,
>>
>> On 29 November 2016 at 16:45, Heiko Stübner <heiko at sntech.de> wrote:
>> > Hi Simon,
>> >
>> > Am Sonntag, 27. November 2016, 10:01:40 schrieb Simon Glass:
>> >> This v3 patch is an update on Sjoerd's original v2 series from Feburary.
>> >> I have dealt with the changes requested at the time, and adjusted the way
>> >> that the speed change is handled.
>> >>
>> >> Tested on firefly-rk3288, rock2.
>> >
>> > Tested on a firefly as well. Though I get mixed results in my netboot
>> > environment. At 100MBit (manually limited) everything seems fine:
>> >
>> > ----------------------
>> > Speed: 100, full duplex
>> > BOOTP broadcast 1
>> > BOOTP broadcast 2
>> > DHCP client bound to address 192.168.140.58 (269 ms)
>> > Using ethernet at ff290000 device
>> > TFTP from server 192.168.140.1; our IP address is 192.168.140.58
>> > Filename 'hstuebner/firefly.vmlinuz'.
>> > Load address: 0x4000000
>> > Loading: #################################################################
>> >
>> >          #################################################################
>> >          #################################################################
>> >          #################################################################
>> >          #################################################################
>> >          #################################################################
>> >          #################################################################
>> >          #########################
>> >          2.9 MiB/s
>> >
>> > done
>> > Bytes transferred = 7033483 (6b528b hex)
>> > ----------------------
>> >
>> > 5 out of 5 boots worked fine.
>> >
>> >
>> > but at 1000MHz I only get:
>> >
>> > ----------------------
>> > Speed: 1000, full duplex
>> > BOOTP broadcast 1
>> > BOOTP broadcast 2
>> > DHCP client bound to address 192.168.140.57 (270 ms)
>> > Using ethernet at ff290000 device
>> > TFTP from server 192.168.140.1; our IP address is 192.168.140.57
>> > Filename 'hstuebner/firefly.vmlinuz'.
>> > Load address: 0x4000000
>> > Loading: #####T #T #T ##T T #T #T T ####T #T ####
>> > Retry count exceeded; starting again
>> > ----------------------
>> >
>> > on 5 boots. 1 lonely boot also worked at 1000MBit for some unknown reason.
>> > I'm not sure if just my switch is some special snowflake (TL-SG1024 from
>> > TP- Link) or there is some other voodoo at work here.
>> >
>> > The rootfs over nfs seems to work fine on 1000MBit though.
>>
>> Yes I see some timeouts, although I don't think it is anything to do
>> with the driver conversion. Or does this not happen unless my patches
>> are applied?
>
> nope, really looks like some other parts are just not fast enough? And the
> setup of GRF and so on, look the same as in the linux kernel, so should be fine
> as well.

So to be clear, are you saying that the same problem happens on a
downstream tree that you tried, or not?

In terms of 'not fast enough' you could try turning off HDMI if that
is on. Also see veyron_init() and see if you can adapt that to firefly
to get the clock speed up?

Regards,
Simon