Re: [grub-devel] loongson-2f mini-pc (fuloong) elf image generation.

[Vladimir 'φ-coder/phcoder' Serbinenko]

On 12.07.2013 18:25, Aleš Nesrsta wrote:
> Hi Vladimir,
>
> - what was the reason of the OHCI problem on Loongson?
> (I don't see any details of solution below nor the patch... ?)
It was bad handling of root ports. My standard system has only EHCI+RMH 
so root port isn't accessible and is never hotplugged. This was 
introduced by USB init speed-up series
> BR,
> Ales
>
> Dne 12.7.2013 16:02, Vladimir 'φ-coder/phcoder' Serbinenko napsal(a):
> > I fixed the usb keyboard bug on fuloong. Looks like some "antivirus"
> > software blocked my message with GRUB binary. Also thers is grub.elf
> > (from 2.00~rc1) in downloads section.
> > On 03.11.2012 22:34, Javier Vasquez wrote:
> > > On Tue, Oct 30, 2012 at 2:14 PM, Aleš Nesrsta <address@hidden
> > > <mailto:address@hidden>> wrote:
> > >
> > >     Javier Vasquez píše v Po 29. 10. 2012 v 17:03 -0600:
> > >      > > According to USB keyboard: Maybe it sounds funny, but try this,
> > >     please:
> > >      > > Unplug and plug again keyboard when GRUB is loaded.
> > >      > > Does it help?
> > >      > >
> > >      > > BR
> > >      > > Ales
> > >      >
> > >      >
> > >      > Thanks, I tried, and it didn't work, :-(
> > >      >
> > >      > BTW, forgot to menion that I also tried adding usb and
> > >     usb_keyboard as
> > >      > GRUB_PRELOAD_MODULES (grub.cfg has the corresponding insmod
> > >     statements
> > >      > at the beginning), and that didn't work.  That's the current
> > > setup
> > >      > actually...
> > >      >
> > >      > Thanks,
> > >      >
> > >     OK, so it will be some another case.
> > >
> > >     There will be helpful additional information - does work USB at all?
> > >     I.e. when You connect e.g. USB flasdisk, is it working, can You
> > > use it
> > >     in GRUB?
> > >     (Sorry if it is not possible to try such situation, I never seen
> > >     loongson (fuloong) mini-pc...)
> > >
> > >
> > > No, it does not work.  pmon handles it correctly, but grub provides the
> > > error disk not found, :-(
> > >
> > >
> > >     Another thing - You mentioned You used OHCI GRUB driver. As I see on
> > >     http://www.lemote.com/en/products/mini-computer/2010/0310/111.html ,
> > >     there is mentioned USB 2.0, i.e. it should be probably EHCI
> > > controller
> > >     - ?
> > >
> > >
> > > I also generated image including the ehci module, and it didn't make a
> > > change...
> > >
> > >     (OHCI is USB 1.1 controller - but it could be used together with
> > > USB 2.0
> > >     EHCI as so called companion controller).
> > >     Is it possible that Your Mini-PC has USB 2.0 only (i.e. EHCI)
> > > controller
> > >     (without companion controller)?
> > >     Are somewhere available more detailed information about Your
> > > loongson-2f
> > >     Mini-PC HW?
> > >
> > >
> > > I'm attaching more information about the mini-pc...  Notice dmesg
> > > indicates linux used ohci for this device without problems:
> > >
> > > % uname -a
> > > Linux mini-1 3.2.0-4-loongson-2f #1 Debian 3.2.32-1 mips64 GNU/Linux
> > >
> > > % dmesg
> > > ...
> > > [    6.820000] usb 2-2: new low-speed USB device number 3 using ohci_hcd
> > > [    7.048000] usb 2-2: New USB device found, idVendor=04d9,
> > > idProduct=1702
> > > [    7.052000] usb 2-2: New USB device strings: Mfr=1, Product=2,
> > > SerialNumber=0
> > > [    7.056000] usb 2-2: Product: USB Keyboard
> > > [    7.060000] usb 2-2: Manufacturer:
> > > [    7.100000] input:   USB Keyboard as
> > > /devices/pci0000:00/0000:00:0e.4/usb2/2-2/2-2:1.0/input/input1
> > > [    7.116000] generic-usb 0003:04D9:1702.0002: input,hidraw1: USB HID
> > > v1.10 Keyboard [  USB Keyboard] on usb-0000:00:0e.4-2/input0
> > > [    7.144000] input:   USB Keyboard as
> > > /devices/pci0000:00/0000:00:0e.4/usb2/2-2/2-2:1.1/input/input2
> > > [    7.152000] generic-usb 0003:04D9:1702.0003: input,hidraw2: USB HID
> > > v1.10 Device [  USB Keyboard] on usb-0000:00:0e.4-2/input1
> > > ...
> > >
> > > I'm attaching several logs and info, including dmsg output...
> > >
> > >
> > >     BR,
> > >     Ales
> > >
> > >
> > > Thanks,
> > >
> > > --
> > > Javier.
> > >
> > >
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