[U-Boot] Ethernet not detecting on Odroid u3

Tue Mar 14 11:26:14 UTC 2017

On Tue, 14 Mar 2017 18:01:11 +0900
Jaehoon Chung <jh80.chung at samsung.com> wrote:

> On 03/14/2017 04:52 PM, Siarhei Siamashka wrote:
> > On Mon, 6 Mar 2017 12:18:50 +0200
> > Siarhei Siamashka <siarhei.siamashka at gmail.com> wrote:
> >   
> >> On Thu, 12 Jan 2017 14:02:48 +0530
> >> Anand Moon <linux.amoon at gmail.com> wrote:
> >>  
> >>> Hi All,
> >>>
> >>> I tried to compile the latest u-boot for Odroid U3.
> >>> issue is that Ethernet is not able to detected.
> >>>
> >>> Please let me know what need to enable USB Ethernet
> >>> to support tftp boot.
> >>>
> >>> Best Regards
> >>> -Anand
> >>>
> >>> ------
> >>> U-Boot 2017.01-02075-g4386feb-dirty (Jan 12 2017 - 06:17:08 +0000)
> >>>
> >>> CPU:   Exynos4412 @ 1 GHz
> >>> Model: Odroid based on Exynos4412
> >>> Board: Odroid based on Exynos4412
> >>> Type:  u3
> >>> DRAM:  2 GiB
> >>> LDO20 at VDDQ_EMMC_1.8V: set 1800000 uV; enabling
> >>> LDO22 at VDDQ_EMMC_2.8V: set 2800000 uV; enabling
> >>> LDO21 at TFLASH_2.8V: set 2800000 uV; enabling
> >>> MMC:   SAMSUNG SDHCI: 0, EXYNOS DWMMC: 1
> >>> *** Warning - bad CRC, using default environment
> >>>
> >>> Net:   No ethernet found.
> >>> Hit any key to stop autoboot:  0
> >>> Odroid #
> >>> Odroid #
> >>> Odroid # usb start
> >>> starting USB...
> >>> USB0:   USB EHCI 1.00
> >>> scanning bus 0 for devices... 1 USB Device(s) found
> >>>        scanning usb for ethernet devices... 0 Ethernet Device(s) found
> >>> Odroid #
> >>> Odroid #
> >>> Odroid # setenv usbethaddr 02:DE:AD:BE:EF:FF
> >>> Odroid # usb start
> >>> Odroid # usb info
> >>> 1: Hub,  USB Revision 2.0
> >>>  - u-boot EHCI Host Controller
> >>>  - Class: Hub
> >>>  - PacketSize: 64  Configurations: 1
> >>>  - Vendor: 0x0000  Product 0x0000 Version 1.0
> >>>    Configuration: 1
> >>>    - Interfaces: 1 Self Powered 0mA
> >>>      Interface: 0
> >>>      - Alternate Setting 0, Endpoints: 1
> >>>      - Class Hub
> >>>      - Endpoint 1 In Interrupt MaxPacket 8 Interval 255ms
> >>>
> >>> Odroid # reset    
> >>
> >> Hi Anand,
> >>
> >> It's an old problem and we have identified its root cause a long
> >> time ago:
> >>
> >>     https://lists.denx.de/pipermail/u-boot/2015-October/231061.html
> >>
> >> Basically, a voltage regulator is not getting initialized because
> >> a call to the board_usb_init() function was lost during the DM
> >> conversion. You can try to compile U-Boot from my branch, it contains
> >> the rebased fixes which I have been using all this time on my ODROID-X
> >> board:
> >>
> >>     https://github.com/ssvb/u-boot/commits/20170306-unbreak-odroid
> >>
> >> I did all the initial investigation back in 2015, but tried to
> >> delegate the actual bugfixing work to the ODROID board maintainer(s).
> >> Apparently it did not fly and ODROID support is still broken.
> >>
> >> If you can test my branch and confirm that it works on your ODROID-U3,
> >> then I can maybe spend some time on making cleaner patches and ensuring
> >> that they reach the U-Boot git repository.
> >>
> >> Thanks!  
> > 
> > Hello again,
> > 
> > Anand Moon, considering no reply to my post, do I understand it
> > right that you are actually not very much interested in getting
> > this particular problem resolved in U-Boot?
> > 
> > These ODROID problems are relatively simple and don't require any
> > special skills or considerable efforts to resolve. The only issue
> > is that apparently almost nobody uses the mainline U-Boot on this
> > hardware and nobody gives rats about having it usable out of the
> > box.
> > 
> > I only have an ODROID-X board, which is a rather early and
> > short-lived revision. Again, if you or anybody else could step in
> > and take care of testing the fixes on other ODROID boards (X2 and
> > U3), then we could get ODROID boards working properly in the next
> > U-Boot release.
> > 
> > 
> > Jaehoon Chung, you seem to be listed as the current nominal ODROID
> > boards maintainer. But you don't seem to be doing anything other
> > than just making promises to check various things and then
> > disappearing for months/years:  
> 
> Actually, i had forgotten this mail...When i check the patches, first
> i'm looking at patchwork. And I'm remembering what i do and need.
> Right, it's my mistake for forgetting it.
> 
> Disappearing for months/years?

Yes, exactly. And that's what has already happened twice.

"Once is happenstance, twice is coincidence, the third time it's
enemy action" ;-) But don't take it too seriously. I have
no intention to blame anybody because this is not moving us
anywhere.

> If i decided to do nothing, i might not reply anything to u-boot
> mailing list.

BTW, thanks for replying.

> If you send the polite reminding ping mail, maybe i will really
> apologize to you. but now i don't have those mind.
> You're regarding to me like nothing to do...
> > 
> >     https://lists.denx.de/pipermail/u-boot/2017-January/277954.html
> >     https://lists.denx.de/pipermail/u-boot/2015-October/231023.html  
> 
> I can't access this URL,,so i don't know what you added..

This URL is the official U-Boot mailing list archive. Can you
explain what's going on and why you can't access it? The mailing
list admin might be interested in resolving issues (if there
are any).

> > 
> > Could you please explain what's going on and what are your plans
> > regarding ODROID boards support in U-Boot?  
> 
> I'm preparing to covert to DM from legacy..For converting DM,
> I'm doing step by step for samsung SoCs.
> Goni -> Universal210 - > Trats -> Trats2 -> Odroid also..
> You can see my patches for goni, universal210, trats..

Well, looks like you have a lot on your plate. It's not
surprising that you have no time for maintaining Exynos
based ODROID boards.

Still it's only my opinion, but it looks like you got your
priorities wrong. The DM conversion is more like a refactoring
and code massaging activity. It offers exactly nothing to the
end users.

Yes, the idea is that these refactoring changes can make the
code cleaner, more reusable and easier to maintain, which may
result in better quality and reliability in the long run.
Yada yada bla bla bla.

However we have a bitrotten crap in the mainline U-Boot right
now (both MMC and USB are buggered on Exynos based ODROID boards)
and it has been this way since at least 2015. Yes, people are
already used to this and accept it as a norm, so they don't
complain much. I don't know what they are using right now on
their hardware. Maybe the Hardkernel's bootloader? Or an old
U-Boot release?

IMHO making sure that the *current* U-Boot release works
correctly should be the first priority of the ODROID boards
maintainer. Rather than entertaining himself with a fun DM
stuff...

> I'm not sure this problem is fixed or not..

You could just boot your ODROID-U3 board and easily check whether
the Ethernet bug is still there or not. That's what you have
actually promised back in January.

> if you want to fix it, i will do it..but not right now.
> I keep going my current task..

OK, I'll take care of it. But as I said, I would need
ODROID-X2 and ODROID-U3 owners to test the fixes because
I don't have a full set of hardware.

-- 
Best regards,
Siarhei Siamashka