Re: [EXTERNAL] Re: BeagleBone Black Networking (wifi and/or wired)
Device Tree overays are a method used to update the Device Tree. Given a device tree that describes all the devices, let's say you add a new SPI device, you can update the device tree with a (blob) device tree overlay. I should ask (without Googling), What is the Device Tree Overlay mechanism in RTEMS? Regards, -- * Amalaye Oyake, NASA / Jet Propulsion Laboratory. */\ * * Jet Propulsion Laboratory, Pasadena *|| * * CA/||\ * *^^*** On 6/7/19, 6:17 PM, "users on behalf of Chris Johns" wrote: On 8/6/19 1:53 am, Vijay Kumar Banerjee wrote: > > I would like to add that in two projects of this year( I2C and PRU-ICSS drivers) we > are using our own device tree overlays that make our drivers work. Where to add > the device > tree related stuff seems like an important question. What are device tree overlays? Chris ___ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users ___ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users
Re: BeagleBone Black Networking (wifi and/or wired)
On 8/6/19 1:53 am, Vijay Kumar Banerjee wrote: > > I would like to add that in two projects of this year( I2C and PRU-ICSS > drivers) we > are using our own device tree overlays that make our drivers work. Where to > add > the device > tree related stuff seems like an important question. What are device tree overlays? Chris ___ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users
Re: BeagleBone Black Networking (wifi and/or wired)
On 8/6/19 1:43 am, Vijay Kumar Banerjee wrote: > > I recently wrote a blog post about running RTEMS on BBB: > https://blog.thelunatic.dev/getting-started-bbb-2/ > Thanks for mentioning this. I have been using it. > Some of it can be a part of the documentation I think. I would like to > help with the documentation on Beagle BSP. :-) Excellent and thanks. Chris ___ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users
Re: BeagleBone Black Networking (wifi and/or wired)
On Fri, Jun 7, 2019 at 9:15 PM Christian Mauderer < christian.maude...@embedded-brains.de> wrote: > > > - Ursprüngliche Mail - > > Von: "Chris Johns" > > An: "Christian Mauderer" , > "RTEMS Users" > > Gesendet: Freitag, 7. Juni 2019 14:23:51 > > Betreff: Re: BeagleBone Black Networking (wifi and/or wired) > > > On 7/6/19 7:41 pm, Christian Mauderer wrote: > >> On 07/06/2019 11:19, Chris Johns wrote: > >>> On 7/6/19 7:18 pm, Christian Mauderer wrote: > >>> > >>> Which FDT blob do I need to load? > >>> > >> > >> I usually use the one from either the official Linux or the one from > >> FreeBSD. Alternatively you can build your own from > >> > >>git://xenbits.xen.org/people/ianc/device-tree-rebasing.git > >> > > > > Thanks. I have found them and I can build the default one on FreeBSD. It > does > > not build on MacOS, the `cpp` from clang does not like command line. > > > > I wonder if we should include the dts source from FreeBSD in > rtems-libbsp and > > maybe some blobs. This stuff is pretty nerdy and makes libbsd awkward to > use. > > Crashing if not present is not friendly. > > > > Chris > > Note that basically all device tree files that I have found yet are forked > from the Linux ones. They are all GPL. I think it was Sichen Zhao during > 2017 GSoC who wanted to add some to the RTEMS repository and it has been > rejected due to the license. I don't really object to adding them > somewhere. But we should think exactly about where we want that stuff. > > I would like to add that in two projects of this year( I2C and PRU-ICSS drivers) we are using our own device tree overlays that make our drivers work. Where to add the device tree related stuff seems like an important question. > Regards > > Christian > -- > > embedded brains GmbH > Christian Mauderer > Dornierstr. 4 > D-82178 Puchheim > Germany > email: christian.maude...@embedded-brains.de > Phone: +49-89-18 94 741 - 18 > Fax: +49-89-18 94 741 - 08 > PGP: Public key available on request. > > Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG. > ___ > users mailing list > users@rtems.org > http://lists.rtems.org/mailman/listinfo/users ___ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users
Re: BeagleBone Black Networking (wifi and/or wired)
- Ursprüngliche Mail - > Von: "Chris Johns" > An: "Christian Mauderer" , "RTEMS > Users" > Gesendet: Freitag, 7. Juni 2019 14:23:51 > Betreff: Re: BeagleBone Black Networking (wifi and/or wired) > On 7/6/19 7:41 pm, Christian Mauderer wrote: >> On 07/06/2019 11:19, Chris Johns wrote: >>> On 7/6/19 7:18 pm, Christian Mauderer wrote: >>> >>> Which FDT blob do I need to load? >>> >> >> I usually use the one from either the official Linux or the one from >> FreeBSD. Alternatively you can build your own from >> >>git://xenbits.xen.org/people/ianc/device-tree-rebasing.git >> > > Thanks. I have found them and I can build the default one on FreeBSD. It does > not build on MacOS, the `cpp` from clang does not like command line. > > I wonder if we should include the dts source from FreeBSD in rtems-libbsp and > maybe some blobs. This stuff is pretty nerdy and makes libbsd awkward to use. > Crashing if not present is not friendly. > > Chris Note that basically all device tree files that I have found yet are forked from the Linux ones. They are all GPL. I think it was Sichen Zhao during 2017 GSoC who wanted to add some to the RTEMS repository and it has been rejected due to the license. I don't really object to adding them somewhere. But we should think exactly about where we want that stuff. Regards Christian -- embedded brains GmbH Christian Mauderer Dornierstr. 4 D-82178 Puchheim Germany email: christian.maude...@embedded-brains.de Phone: +49-89-18 94 741 - 18 Fax: +49-89-18 94 741 - 08 PGP: Public key available on request. Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG. ___ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users
Re: BeagleBone Black Networking (wifi and/or wired)
On Fri, Jun 7, 2019 at 6:09 PM Chris Johns wrote: > On 7/6/19 10:32 pm, Sebastian Huber wrote: > > On 07/06/2019 14:23, Chris Johns wrote: > >> On 7/6/19 7:41 pm, Christian Mauderer wrote: > >>> On 07/06/2019 11:19, Chris Johns wrote: > On 7/6/19 7:18 pm, Christian Mauderer wrote: > > Which FDT blob do I need to load? > > >>> > >>> I usually use the one from either the official Linux or the one from > >>> FreeBSD. Alternatively you can build your own from > >>> > >>> git://xenbits.xen.org/people/ianc/device-tree-rebasing.git > >>> > >> > >> Thanks. I have found them and I can build the default one on FreeBSD. > It does > >> not build on MacOS, the `cpp` from clang does not like command line. > >> > >> I wonder if we should include the dts source from FreeBSD in > rtems-libbsp and > >> maybe some blobs. This stuff is pretty nerdy and makes libbsd awkward > to use. > >> Crashing if not present is not friendly. > > > > For a start some documentation would be helpful too: > > > > https://docs.rtems.org/branches/master/user/bsps/bsps-arm.html#beagle > > > > I agree, I saw this after checking there first. Once I figure out what I am > doing I will add some. I am still assembling all the pieces. > > Hello Chris, I recently wrote a blog post about running RTEMS on BBB: https://blog.thelunatic.dev/getting-started-bbb-2/ Some of it can be a part of the documentation I think. I would like to help with the documentation on Beagle BSP. :-) Thanks > Chris > ___ > users mailing list > users@rtems.org > http://lists.rtems.org/mailman/listinfo/users ___ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users
Re: BeagleBone Black Networking (wifi and/or wired)
On 07/06/2019 14:23, Chris Johns wrote: On 7/6/19 7:41 pm, Christian Mauderer wrote: On 07/06/2019 11:19, Chris Johns wrote: On 7/6/19 7:18 pm, Christian Mauderer wrote: Which FDT blob do I need to load? I usually use the one from either the official Linux or the one from FreeBSD. Alternatively you can build your own from git://xenbits.xen.org/people/ianc/device-tree-rebasing.git Thanks. I have found them and I can build the default one on FreeBSD. It does not build on MacOS, the `cpp` from clang does not like command line. I wonder if we should include the dts source from FreeBSD in rtems-libbsp and maybe some blobs. This stuff is pretty nerdy and makes libbsd awkward to use. Crashing if not present is not friendly. For a start some documentation would be helpful too: https://docs.rtems.org/branches/master/user/bsps/bsps-arm.html#beagle -- 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.hu...@embedded-brains.de PGP : Public key available on request. Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG. ___ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users
Re: BeagleBone Black Networking (wifi and/or wired)
On 7/6/19 7:41 pm, Christian Mauderer wrote: > On 07/06/2019 11:19, Chris Johns wrote: >> On 7/6/19 7:18 pm, Christian Mauderer wrote: >> >> Which FDT blob do I need to load? >> > > I usually use the one from either the official Linux or the one from > FreeBSD. Alternatively you can build your own from > >git://xenbits.xen.org/people/ianc/device-tree-rebasing.git > Thanks. I have found them and I can build the default one on FreeBSD. It does not build on MacOS, the `cpp` from clang does not like command line. I wonder if we should include the dts source from FreeBSD in rtems-libbsp and maybe some blobs. This stuff is pretty nerdy and makes libbsd awkward to use. Crashing if not present is not friendly. Chris ___ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users
Re: BeagleBone Black Networking (wifi and/or wired)
On 07/06/2019 11:19, Chris Johns wrote: > On 7/6/19 7:18 pm, Christian Mauderer wrote: >> >> On 07/06/2019 11:16, Chris Johns wrote: >>> On 7/6/19 6:34 pm, Christian Mauderer wrote: On 07/06/2019 10:23, Chris Johns wrote: > Hi, > > I am looking for some information on doing either but I cannot find out > what I > need. I have run a few libbsd examples and some run and some crash. I am > wondering if I need an device tree installed but I cannot find out which > one and > from where. > > Any hints would be most welcome. > > Thanks > Chris Hello Chris, for wired network, you should be able to add libbsd and start the network similar like for all other boards. >>> >>> Nice. Do I need u-boot to load an FDT? I am not currently doing that. >> >> Yes. The libbsd drivers use the FDT. >> > > Which FDT blob do I need to load? > > Chris > I usually use the one from either the official Linux or the one from FreeBSD. Alternatively you can build your own from git://xenbits.xen.org/people/ianc/device-tree-rebasing.git -- embedded brains GmbH Herr Christian Mauderer Dornierstr. 4 D-82178 Puchheim Germany email: christian.maude...@embedded-brains.de Phone: +49-89-18 94 741 - 18 Fax: +49-89-18 94 741 - 08 PGP: Public key available on request. Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG. ___ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users
Re: BeagleBone Black Networking (wifi and/or wired)
On 7/6/19 7:18 pm, Christian Mauderer wrote: > > On 07/06/2019 11:16, Chris Johns wrote: >> On 7/6/19 6:34 pm, Christian Mauderer wrote: >>> On 07/06/2019 10:23, Chris Johns wrote: Hi, I am looking for some information on doing either but I cannot find out what I need. I have run a few libbsd examples and some run and some crash. I am wondering if I need an device tree installed but I cannot find out which one and from where. Any hints would be most welcome. Thanks Chris >>> >>> Hello Chris, >>> >>> for wired network, you should be able to add libbsd and start the >>> network similar like for all other boards. >> >> Nice. Do I need u-boot to load an FDT? I am not currently doing that. > > Yes. The libbsd drivers use the FDT. > Which FDT blob do I need to load? Chris ___ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users
Re: BeagleBone Black Networking (wifi and/or wired)
On 07/06/2019 11:16, Chris Johns wrote: > On 7/6/19 6:34 pm, Christian Mauderer wrote: >> On 07/06/2019 10:23, Chris Johns wrote: >>> Hi, >>> >>> I am looking for some information on doing either but I cannot find out >>> what I >>> need. I have run a few libbsd examples and some run and some crash. I am >>> wondering if I need an device tree installed but I cannot find out which >>> one and >>> from where. >>> >>> Any hints would be most welcome. >>> >>> Thanks >>> Chris >> >> Hello Chris, >> >> for wired network, you should be able to add libbsd and start the >> network similar like for all other boards. > > Nice. Do I need u-boot to load an FDT? I am not currently doing that. Yes. The libbsd drivers use the FDT. > >> >> Wireless is still some more effort. Note that you will need the >> everything buildset of libbsd for that. >> >> If you want you can have a look at the example application that I used >> during the last GSoC projects: >> >> https://gitlab.com/c-mauderer/rtems-bbb/tree/master/apps/wifi-sample >> >> That application starts a wpa_supplicant. It expects a RT8188EU based >> WLAN dongle. There should be a wpa_supplicant.conf on the root of your >> SD card. If I remember correctly it even routes between the networks. So >> you could basically use the BBB as a Ethernet to WLAN adapter. > > Nice. > > Thanks > Chris > -- embedded brains GmbH Herr Christian Mauderer Dornierstr. 4 D-82178 Puchheim Germany email: christian.maude...@embedded-brains.de Phone: +49-89-18 94 741 - 18 Fax: +49-89-18 94 741 - 08 PGP: Public key available on request. Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG. ___ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users
Re: BeagleBone Black Networking (wifi and/or wired)
On 7/6/19 6:34 pm, Christian Mauderer wrote: > On 07/06/2019 10:23, Chris Johns wrote: >> Hi, >> >> I am looking for some information on doing either but I cannot find out what >> I >> need. I have run a few libbsd examples and some run and some crash. I am >> wondering if I need an device tree installed but I cannot find out which one >> and >> from where. >> >> Any hints would be most welcome. >> >> Thanks >> Chris > > Hello Chris, > > for wired network, you should be able to add libbsd and start the > network similar like for all other boards. Nice. Do I need u-boot to load an FDT? I am not currently doing that. > > Wireless is still some more effort. Note that you will need the > everything buildset of libbsd for that. > > If you want you can have a look at the example application that I used > during the last GSoC projects: > > https://gitlab.com/c-mauderer/rtems-bbb/tree/master/apps/wifi-sample > > That application starts a wpa_supplicant. It expects a RT8188EU based > WLAN dongle. There should be a wpa_supplicant.conf on the root of your > SD card. If I remember correctly it even routes between the networks. So > you could basically use the BBB as a Ethernet to WLAN adapter. Nice. Thanks Chris ___ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users
Re: BeagleBone Black Networking (wifi and/or wired)
On 07/06/2019 10:23, Chris Johns wrote: > Hi, > > I am looking for some information on doing either but I cannot find out what I > need. I have run a few libbsd examples and some run and some crash. I am > wondering if I need an device tree installed but I cannot find out which one > and > from where. > > Any hints would be most welcome. > > Thanks > Chris Hello Chris, for wired network, you should be able to add libbsd and start the network similar like for all other boards. Wireless is still some more effort. Note that you will need the everything buildset of libbsd for that. If you want you can have a look at the example application that I used during the last GSoC projects: https://gitlab.com/c-mauderer/rtems-bbb/tree/master/apps/wifi-sample That application starts a wpa_supplicant. It expects a RT8188EU based WLAN dongle. There should be a wpa_supplicant.conf on the root of your SD card. If I remember correctly it even routes between the networks. So you could basically use the BBB as a Ethernet to WLAN adapter. Best regards Christian -- embedded brains GmbH Herr Christian Mauderer Dornierstr. 4 D-82178 Puchheim Germany email: christian.maude...@embedded-brains.de Phone: +49-89-18 94 741 - 18 Fax: +49-89-18 94 741 - 08 PGP: Public key available on request. Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG. ___ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users
BeagleBone Black Networking (wifi and/or wired)
Hi, I am looking for some information on doing either but I cannot find out what I need. I have run a few libbsd examples and some run and some crash. I am wondering if I need an device tree installed but I cannot find out which one and from where. Any hints would be most welcome. Thanks Chris ___ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users
