[PATCH 01/02] USB driver bcm283x_dwcotg added.
Thomas Kim
thomas73.kim at gmail.com
Fri Aug 12 00:20:54 UTC 2016
Dear Deval Shah,
I found email thread(name: GSoC 2015 RPi USB Support) which is related with
my problem.
https://lists.rtems.org/pipermail/devel/2015-August/012218.html
Because rtems and libbsd version is not matched with last year version,
some description is not matched. but, this email thread's problem is same
with my case.
On referencing, I attached my modified code.
At this time, even though I changed according to GSoC 2015 RPi USB Support,
my problem is not resolved.
Current my idea is that I should modify linkscript for resolving this as
like below example.
.rtemsroset : ALIGN_WITH_INPUT {
/* Special FreeBSD linker set sections */
__start_set_sysctl_set = .;
*(set_sysctl_*);
__stop_set_sysctl_set = .;
*(set_domain_*);
*(set_pseudo_*);
#if 1 // Thomas added
__start_set_nexus = .;
/* some description should be added in here */
__stop_set_nexus = .;
#endif
...
But, I don't know that which description should be addded between
__start_set_nexus and __stop_set_nexus.
Is this right method ?
Please advise me.
Best Regards.
Thomas Kim
2016-08-11 19:01 GMT+09:00 Thomas Kim <thomas73.kim at gmail.com>:
> Dear Deval,
>
> No problem.
>
> If I find addtional something, I will let you know.
>
> Best Regards,
> Thomas Kim
>
> 2016-08-11 18:57 GMT+09:00 Deval Shah <deval.maker at gmail.com>:
>
>> Hello Thomas Kim,
>>
>> I am actually going out of station for a week. I will look when I get
>> some time.
>>
>> Sorry for not being able to help immediately.
>>
>> Deval Shah
>>
>> On Thursday 11 August 2016, Thomas Kim <thomas73.kim at gmail.com> wrote:
>>
>>> Dear Deval Shah,
>>>
>>> I found reason about "why dwcotg probe & attach function is not called".
>>>
>>> Even though DRIVER_MODULE is declared in below, _bsd__start_set_nexus &
>>> _bsd__stop_set_nexus is not initialized.
>>>
>>> DRIVER_MODULE(bcm283x_dwcotg, nexus, bcm283x_dwc_otg_driver,
>>> bcm283x_dwc_otg_devclass, 0, 0);
>>>
>>> I checked symbol information by arm-rtems4.12-nm command.
>>>
>>> 00225fac D _bsd__start_set_nexus
>>> 00225fac D _bsd__start_set_sysctl_set
>>> 0022ca10 D _bsd__start_set_sysinit_set
>>> 0022974c D _bsd_start_softclock_sys_init
>>> 00225fac D _bsd__stop_set_modmetadata_set
>>> 00225fac D _bsd__stop_set_nexus
>>> 002260a4 D _bsd__stop_set_sysctl_set
>>> 0022cb04 D _bsd__stop_set_sysinit_set
>>>
>>> But, I was failed for finding location for initializing
>>> _bsd__start_set_nexus and _bsd__stop_set_nexus.
>>>
>>> Please advise me.
>>>
>>> Best Regards,
>>> Thomas Kim.
>>>
>>> 2016-08-11 11:40 GMT+09:00 Thomas Kim <thomas73.kim at gmail.com>:
>>>
>>>> Dear Deval Shah,
>>>>
>>>> I found something.
>>>>
>>>> At this time, I am analyzing libbsd subsystem call procedure.
>>>> I added additional information on verbose log file for referencing
>>>> kernel.h (in rtems-libbsd/freebsd/sys/sys) and symbol file which is
>>>> generated by arm-rtems4.12-nm.
>>>> I attached this log file(libbsd-verbose-log.txt).
>>>>
>>>> As you see in this log file, my surmmary is below;
>>>>
>>>> 1) subsystem 310000 is SI_SUB_DRIVERS. also, I checked that
>>>> dwcotg_nexus_mod, usbus_ehci_mod, umass_uhub_mod, uhub_uhub_mod,
>>>> uhub_usbus_mod are registered by _bsd_module_register_init().
>>>> - I think that it is okay.
>>>>
>>>> 2) subsystem 3800000 is SI_SUB_CONFIGURE. I checked nexus_probe() in
>>>> rtems-kernel-nexus.c is called in this phase.
>>>> but, device_add_child() is not called in below step of nexus_probe().
>>>>
>>>> SET_FOREACH(nd, nexus) {
>>>> device_add_child(dev, nd->name, nd->unit);
>>>> }
>>>>
>>>> Finally, I am guessing that device_add_child() for DWCOTG should be
>>>> called.
>>>> At this time, I don't know why device_add_child() for DWCOTG controller
>>>> is not called.
>>>>
>>>> Please advise me.
>>>>
>>>> Best Regards,
>>>> Thomas Kim
>>>>
>>>>
>>>> 2016-08-11 8:51 GMT+09:00 Thomas Kim <thomas73.kim at gmail.com>:
>>>>
>>>>> Dear Deval Shah,
>>>>>
>>>>> I checked my rasberry board. my board is rasberry Pi B+. (It is not
>>>>> RPI2 B+)
>>>>> I am sorry. I returned to rtems, libbsd version for Pi B+.
>>>>>
>>>>> Anyway, I guess that both bcm283x_dwc_otg_probe() and
>>>>> bcm283x_dwc_otg_attach() function should be called.
>>>>> I don't know how to call bcm283x_dwc_otg_probe() and
>>>>> bcm283x_dwc_otg_attach().
>>>>>
>>>>> Please advsie me.
>>>>>
>>>>> Best Regards,
>>>>> Thomas Kim.
>>>>>
>>>>> 2016-08-10 22:06 GMT+09:00 Deval Shah <deval.maker at gmail.com>:
>>>>>
>>>>>> I saw the files which you have attached. I found one quick mistake.
>>>>>>
>>>>>> In your nexus-devices.h file "RTEMS_BSD_DRIVER_BCM283X_DWCOTG(0x20980000,
>>>>>> 17);", base and irq used are wrong. I had corrected the irq in my
>>>>>> other commit. They will be 0x3F980000 (since you are using Raspberry pi 2)
>>>>>> and 9.
>>>>>>
>>>>>> It would be easier to use the macros. i.e.
>>>>>> RTEMS_BSD_DRIVER_BCM283X_DWCOTG(BCM2835_USB_BASE, BCM2835_IRQ_ID_USB
>>>>>> );
>>>>>>
>>>>>>
>>>>>> ᐧ
>>>>>>
>>>>>> On Wed, Aug 10, 2016 at 1:11 PM, Thomas Kim <thomas73.kim at gmail.com>
>>>>>> wrote:
>>>>>>
>>>>>>> Dear Deval Shah,
>>>>>>>
>>>>>>> Thank you very much for your reply.
>>>>>>> I checked this again.
>>>>>>> Because there is not your code in currrent git system, I patched
>>>>>>> your code in current libbsd code.
>>>>>>> As I know in current libbsd source tree, your nexus_devices.h should
>>>>>>> be sperated into rtems-bsd-nexus-bus.h. I attached this.
>>>>>>>
>>>>>>> First of all, I completed to test RTEMS testsuites/sample/ticker.exe
>>>>>>> on RPI2 B+ board.
>>>>>>> I am tring to test rtems-libbsd/rtemsbsd/testsuite/usb01.
>>>>>>> also, I try to test two cases in usb01/init.c
>>>>>>> case 1 does not include NEED_USB_EHCI. case 2 include NEED_USB_EHCI.
>>>>>>>
>>>>>>> #if defined(LIBBSP_ARM_LPC24XX_BSP_H) ||
>>>>>>> defined(LIBBSP_ARM_LPC32XX_BSP_H)
>>>>>>> #define NEED_USB_OHCI
>>>>>>> (CASE1) #elif defined(__GEN83xx_BSP_h) ||
>>>>>>> defined(LIBBSP_POWERPC_QORIQ_BSP_H)
>>>>>>> (CASE2) #elif defined(__GEN83xx_BSP_h) ||
>>>>>>> defined(LIBBSP_ARM_RASPBERRYPI_BSP_H)
>>>>>>> #define NEED_USB_EHCI
>>>>>>> #endif
>>>>>>> SYSINIT_NEED_USB_CORE;
>>>>>>> #ifdef NEED_USB_OHCI
>>>>>>> SYSINIT_NEED_USB_OHCI;
>>>>>>> #endif
>>>>>>> #ifdef NEED_USB_EHCI
>>>>>>> SYSINIT_NEED_USB_EHCI;
>>>>>>> #endif
>>>>>>>
>>>>>>> also, I added "#define VERBOSE_SYSINIT 1" in init_main.c for
>>>>>>> checking SYS_INIT functional call.
>>>>>>>
>>>>>>> At this time, usb_quirk_init() only is called when I test two cases.
>>>>>>> I attached serial log file, too.
>>>>>>>
>>>>>>> Please let me know my missing point.
>>>>>>>
>>>>>>> Best Regards,
>>>>>>> JunBeom
>>>>>>>
>>>>>>> 2016-08-10 5:31 GMT+09:00 Deval Shah <deval.maker at gmail.com>:
>>>>>>>
>>>>>>>> Hello Thomas Kim,
>>>>>>>>
>>>>>>>> It is the same code which you downloaded will work for the
>>>>>>>> raspberry pi. You can test the libbsd version of raspberry pi by
>>>>>>>> configuring waf with the following arguments.
>>>>>>>>
>>>>>>>> waf configure --prefix=/opt/rtems/4.12/bsps \
>>>>>>>> --rtems=/opt/rtems/4.12/bsps \
>>>>>>>> --rtems-tools=/opt/rtems/4.12/tools \
>>>>>>>> --rtems-bsps=arm/raspberrypi
>>>>>>>>
>>>>>>>> You can find more at this link. https://git.rtems.org/rt
>>>>>>>> ems-libbsd/tree/README.waf
>>>>>>>>
>>>>>>>> Deval Shah
>>>>>>>>
>>>>>>>> ᐧ
>>>>>>>>
>>>>>>>> On Tue, Aug 9, 2016 at 11:48 AM, Thomas Kim <thomas73.kim at gmail.com
>>>>>>>> > wrote:
>>>>>>>>
>>>>>>>>> Dear Sir,
>>>>>>>>>
>>>>>>>>> I am sorry.
>>>>>>>>>
>>>>>>>>> I want to test this libbsd version for Rasberry Pi.
>>>>>>>>> When I check "git://git.rtems.org/rtems-libbsd.git", there is not
>>>>>>>>> any code for Rasberry pi.
>>>>>>>>>
>>>>>>>>> Please could you let me know git URL for downloading this libbsd
>>>>>>>>> version ?
>>>>>>>>>
>>>>>>>>> Best Regards,
>>>>>>>>> Thomas Kim
>>>>>>>>>
>>>>>>>>> 2016-08-09 14:52 GMT+09:00 Sebastian Huber <
>>>>>>>>> sebastian.huber at embedded-brains.de>:
>>>>>>>>>
>>>>>>>>>> From which FreeBSD version are these files?
>>>>>>>>>>
>>>>>>>>>> On 05/08/16 18:32, Deval Shah wrote:
>>>>>>>>>>
>>>>>>>>>>> ---
>>>>>>>>>>> freebsd/sys/arm/broadcom/bcm2835/bcm283x_dwc_fdt.c | 127
>>>>>>>>>>> ++++++++++++
>>>>>>>>>>> freebsd/sys/dev/usb/controller/dwc_otg_fdt.c | 228
>>>>>>>>>>> +++++++++++++++++++++
>>>>>>>>>>> freebsd/sys/dev/usb/controller/dwc_otg_fdt.h | 39 ++++
>>>>>>>>>>> libbsd.py | 3 +
>>>>>>>>>>> libbsd_waf.py | 4 +-
>>>>>>>>>>> rtemsbsd/include/bsp/nexus-devices.h | 21 ++
>>>>>>>>>>> 6 files changed, 421 insertions(+), 1 deletion(-)
>>>>>>>>>>> create mode 100644 freebsd/sys/arm/broadcom/bcm28
>>>>>>>>>>> 35/bcm283x_dwc_fdt.c
>>>>>>>>>>> create mode 100644 freebsd/sys/dev/usb/controller
>>>>>>>>>>> /dwc_otg_fdt.c
>>>>>>>>>>> create mode 100644 freebsd/sys/dev/usb/controller
>>>>>>>>>>> /dwc_otg_fdt.h
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> --
>>>>>>>>>> Sebastian Huber, embedded brains GmbH
>>>>>>>>>>
>>>>>>>>>> Address : Dornierstr. 4, D-82178 Puchheim, Germany
>>>>>>>>>> Phone : +49 89 189 47 41-16
>>>>>>>>>> Fax : +49 89 189 47 41-09
>>>>>>>>>> E-Mail : sebastian.huber at embedded-brains.de
>>>>>>>>>> PGP : Public key available on request.
>>>>>>>>>>
>>>>>>>>>> Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des
>>>>>>>>>> EHUG.
>>>>>>>>>>
>>>>>>>>>> _______________________________________________
>>>>>>>>>> devel mailing list
>>>>>>>>>> devel at rtems.org
>>>>>>>>>> http://lists.rtems.org/mailman/listinfo/devel
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> Deval Shah
>>>>>>>> Graduate Student,
>>>>>>>> B.E. (Hons.) Electrical and Electronics Engineering
>>>>>>>> BITS Pilani Hyderabad Campus
>>>>>>>> <http://www.bits-pilani.ac.in/hyderabad/>
>>>>>>>>
>>>>>>>> Github Profile <https://github.com/deval-maker>
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Deval Shah
>>>>>> Graduate Student,
>>>>>> B.E. (Hons.) Electrical and Electronics Engineering
>>>>>> BITS Pilani Hyderabad Campus
>>>>>> <http://www.bits-pilani.ac.in/hyderabad/>
>>>>>>
>>>>>> Github Profile <https://github.com/deval-maker>
>>>>>>
>>>>>
>>>>>
>>>>
>>>
>>
>> --
>> Deval Shah
>> Graduate Student,
>> B.E. (Hons.) Electrical and Electronics Engineering
>> BITS Pilani Hyderabad Campus <http://www.bits-pilani.ac.in/hyderabad/>
>>
>> Github Profile <https://github.com/deval-maker>
>>
>>
>
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