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

[Aleš Nesrsta]

Hi Vladimir,

thanks for the info.

I wanted to try some experiments with this new version, but, 
unfortunately, something is probably bad in trunk - there is no 
accessible any disk device after "insmod <driver>" ("ls" does not list 
any device, only empty line).

<driver> can be (maybe) anything, I tried ehci, uhci, ohci and (non USB 
driver) ahci.
I.e., problem is not related to USB drivers only.
For the first look it sounds like there is maybe something wrong with 
insmod command itself.
(I built GRUB from latest trunk on 64-bit Arch Linux.)

BR,
Ales

Dne 13.7.2013 10:13, Vladimir 'φ-coder/phcoder' Serbinenko napsal(a):
> 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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