GSoC 2015 RPi USB Support

Yurii Shevtsov ungetch at gmail.com
Fri Jun 26 14:05:10 UTC 2015


2015-06-25 16:00 GMT+03:00 Sebastian Huber <sebastian.huber at embedded-brains.de>:
> I would set a break point to nexus_probe(). In this loop
>
>     SET_FOREACH(nd, nexus) {
>         device_add_child(dev, nd->name, nd->unit);
>     }
>
> your device must get added. I would also set break points to the probe and
> attach functions of your device.

Added printfs()

    printf("before setforeach\n");

    SET_FOREACH(nd, nexus) {
        printf("setforeach: %s\n", nd->name);
        device_add_child(dev, nd->name, nd->unit);
    }

Got only 'before setforeach' in console. So it doesn't step into loop.
Any ideas? Also I already had printfs in my driver's probe and attach,
also got no output.

> On 25/06/15 14:50, Yurii Shevtsov wrote:
>>
>> This is ping message, with small update: the problem is not on the
>> linking stage, driver is linked to testsuite (checked with objdump)
>>
>> 2015-06-21 17:57 GMT+03:00 Yurii Shevtsov <ungetch at gmail.com>:
>>>
>>> Hello)
>>> Now I have apps from libbsd testsuite running. But DWC OTG driver doesn't
>>> loads.
>>> I added this lines to init01/test_main.c:
>>>
>>> +SYSINIT_NEED_USB_CORE;
>>> +SYSINIT_DRIVER_REFERENCE(bcm283x_dwcotg, nexus);
>>>
>>> (I know it's bad hardcode)
>>>
>>> If I run it. I get only this:
>>>    nexus0: <RTEMS Nexus device>
>>>    devctl: +nexus0 at   on root0
>>>    devctl: !system=IFNET subsystem=lo0 type=ATTACH
>>>
>>> Of course, I modified rtemsbsd/include/machine/rtems-bsd-sysinit.h and
>>> rtemsbsd/include/bsp/nexus-devices.h (took vlues from working DTS) and
>>> did other nexus-related changes to drivers. You can find changes in my
>>> repo https://github.com/gtament/rtems-libbsd/
>>> So I need some kind of code review, please.
>>> P.S. All testsuites (netshell01, usb01) with shell hangs without any
>>> output.
>>>
>>> Thanks in advance!
>>
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>
>
> --
> Sebastian Huber, embedded brains GmbH
>
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