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

[Heiko Stübner]

Am Mittwoch, 30. November 2016, 19:20:30 schrieb 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?

nope, didn't say that. The firefly actually is my first board using the internal 
ethernet. My other boards normally use usb-ethernet adapters as the arc-emac 
used in other socs isn't supported at all yet.


> 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?

Sadly not until after the 11th of december. But I guess we could just merge it 
now and hopefully fixup the special case later on. It seems to work always at 
100MBit and it seems also at 1000MBit on your side.


Heiko