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

["Vladimir 'φ-coder/phcoder' Serbinenko" <phcoder@gmail.com>]

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 <starous@volny.cz
>>> <mailto:starous@volny.cz>> 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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>>
>>
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