PI STATUS

[Sagar Gupta]

Hi Gedare

I was looking at the ticket #2733(Related to your SPI issues) and potential
project for GSoc 2017 for Raspberry Pi
the one I find interesting is "Convert the existing SPI support to the new
Linux SPI API and test with SPI devices".

I have gone through the wordpress bolg(https://asuolgsoc2014.wordpress.com/)
of André Marques to understand the SPI API developed by him as a part of
GSoc 14,15 . I am going through his code which he commited in RTEMS
repository in GitHub (
https://github.com/RTEMS/rtems/commit/61e7c698a44137afbc1447ed328b14a0d9e55016
)

I have also gone through blog post of  Mudit Jain(
http://rtemsgsoc2016-mudit.blogspot.in/) also i have gone through code
which he commited in RTEMS repository in GitHub (
https://github.com/RTEMS/rtems/commit/48704cdebdd40391c5ca8d8020e5a77edff37677
).

I have also read about how to port drivers from FreeBSD to Rtems/libBSD as
posted by Ragunath in his blog post (
http://ragustechblog.blogspot.in/2015/06/porting-driver-from-freebsd-to-rtems.html)
.

I have also read the Alan Blog post(
http://alanstechnotes.blogspot.in/2013/04/setting-up-rtems-development.html)
 on how to compile GCC and RTEMS for arms and I am trying to get that
running on my system . I will share the results as soon as I finish with
the community.


For the project the API which is refered to is that André Marques developed
 ?
What is the new Linux here been refered to?
Can you please tell me the basic structue of what is to be implemented as
the part for this project.


On Mon, Mar 6, 2017 at 6:17 PM, Gedare Bloom <gedare at rtems.org> wrote:

> On Sun, Mar 5, 2017 at 12:24 PM, Alan Cudmore <alan.cudmore at gmail.com>
> wrote:
> > Hi everyone,
> > This is how far I was able to get when trying to run libBSD on the Pi. I
> > will give you a better idea of where to start.
> > https://lists.rtems.org/pipermail/devel/2016-September/016092.html
> > Since then, the libbsd version has been updated in RTEMS, so it may need
> > some work to get it to compile again.
> >
> > Here is a general status as I understand it:
> > RTEMS ( without bsdlib ) works on the original Pi model B, Pi A+, Pi B+,
> Pi
> > Zero, and the Pi 2.
> > SMP works on the Pi 2.
> >
> > RTEMS does not work on the Pi 3 yet, The UART that the current BSPs use
> as a
> > console is now used by the Bluetooth.
> > So a new UART driver has to be written for the "mini-uart" that serves as
> > the console on the Pi3.
> > I believe the same applies to the new Raspberry Pi Zero W, which has the
> > same Bluetooth wireless stack.
> >
> >
> > We have been working on I2C, SPI, and GPIO support.
> > I2C has been converted to the new linux user API, but SPI has not.
> > GPIO and I2C work, but I have not been able to get my SPI devices to
> work.
> >
> > So potential Raspberry Pi work includes:
> > Convert the existing SPI support to the new Linux SPI API and test with
> SPI
> > devices
> > Continue to work on the LibBSD support
> > Support the Pi Zero W ( and potentially the Pi 3 ) by creating a new uart
> > driver
> > Support Pi 3 SMP ( along with the UART )
> >
> > Even more advanced work could include:
> > Support the Wifi and bluetooth in LibBSD for the Pi Zero W and/or Pi 3.
> >
> > Gedare, I know this should probably be on the GSOC wiki, right  ?
> >
>
> I added to the relevant open project ticket: https://devel.rtems.org/
> ticket/2899
>
> Related to your SPI issues may be: https://devel.rtems.org/ticket/2733
>
> > Alan
> >
> >
> > On Sun, Mar 5, 2017 at 7:49 AM, Gedare Bloom <gedare at rtems.org> wrote:
> >>
> >> Hello Sagar Gupta,
> >>
> >> The best place to start is with the previous GSoC effort that focused
> >> on Raspberry PI. This was last year's project
> >> https://devel.rtems.org/wiki/GSoC/2016/USB%26EthernetRaspberryPi
> >>
> >>
> >>
> >> On Sat, Mar 4, 2017 at 2:21 AM, Sagar Gupta
> >> <sagarguptamonu1996 at gmail.com> wrote:
> >> > Hi ,
> >> >
> >> > I have done a course on Operating Systems at undergraduate level.
> >> > I am specifically interested in development of drivers for operating
> >> > systems
> >> > which work on hardware such as the Raspberry Pi.
> >> > Can I get to know what are the potential projects for Raspberry pi in
> >> > GSoc'17 ?
> >> > also can you guide me to such threads, projects, documentation which
> >> > could
> >> > be be helpful for the same.
> >> >
> >> > Thanks
> >> >
> >> > Warm Regards,
> >> > Sagar Gupta
> >> > Phone : +91 8686146518
> >> > Computer Science Student
> >> > BITS Pilani , Hyderabad Campus
> >> >
> >> > _______________________________________________
> >> > devel mailing list
> >> > devel at rtems.org
> >> > http://lists.rtems.org/mailman/listinfo/devel
> >
> >
>
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