potential GSOC project: Improve the Raspberry Pi BSP

Andre Marques andre.lousa.marques at gmail.com
Thu Mar 13 23:16:01 UTC 2014


I just posted the first proposal draft for "Raspberry Pi BSP Peripherals 
" in the RTEMS Wiki


Any feedback is more than welcome. Should I post it already in melange too?

--André Marques.

On 03/13/14 15:26, Joel Sherrill wrote:
> On 3/13/2014 9:46 AM, Andre Marques wrote:
>> Hello,
>> I would be very interested in working in this project because I'm 
>> currently trying to work with Raspberry Pi and RTEMS for my 
>> undergraduate thesis, so this could be a great followup to that for 
>> the summer.
>> I will need to do some reseach on it before making a proposal (the 
>> time is also gettting shorter), but will post a proposal draft very soon.
> This would be a great area to work. As Alan says, the list is likely 
> too much for
> one student, so it seems likely that the work could be divided for two 
> students
> working on different parts.
> For the Pi Master list, I would like to add the Geert board. That 
> looks like something
> of interest to RTEMS folks.
> --joel
>> --André Marques.
>> On 03/13/14 11:23, Alan Cudmore wrote:
>>> ( I posted this to the rtems-devel list by mistake, my apologies for 
>>> the duplicate message )
>>> f there are still potential GSOC students out there looking for a 
>>> project, I would like to offer a potential project to work on: 
>>> Improving the Raspberry Pi BSP. I would be happy to mentor a student 
>>> for this project. Below is my description for the task.
>>> Thanks,
>>> Alan
>>> One of the RTEMS Open Projects is to contribute a BSP or Board 
>>> Support Package for readily available boards. The Raspberry Pi is 
>>> probably the most available board at $25 and $35 USD, and there have 
>>> been over two million of these boards sold. The RTEMS head (4.11) 
>>> currently has a basic BSP for the Raspberry Pi, supporting the CPU, 
>>> a single UART, and timer. It is enough to run some basic RTEMS 
>>> programs, but expanding the BSP to support peripherals will make it 
>>> much more useful.
>>> For this project, the GSOC student could improve the peripheral 
>>> support for the Raspberry Pi BSP.
>>> The peripherals we need to support (in order of increasing 
>>> difficulty) include:
>>> 1. GPIO (This has been done by one user, but is not integrated)
>>> 2. I2C Bus
>>> 3. SPI Bus
>>> 4. Secure Digital card read and write support (using the SPI bus)
>>> 5. Graphics / RTEMS Framebuffer Support (I have a graphics demo 
>>> working in an RTEMS task)
>>> 6. USB Device support
>>> 7. HDMI/Graphics console (Requires framebuffer support and USB or 
>>> GPIO connected keyboard device)
>>> 8. Ethernet network support (Requires USB support)
>>> The entire list is probably too much for a single student to 
>>> accomplish, so we can adjust the list of work according to what is 
>>> possible.
>>> It may also be a good idea to add support for both models of the 
>>> Raspberry Pi (256MB and 512MB) and be able to configure the memory 
>>> map in the BSP to match the boot time split between the CPU and GPU 
>>> memory.
>>> Finally, in order to do some of this coding, it may be necessary to 
>>> come up with a more efficient way to load and debug code on the 
>>> Raspberry Pi. Options include using U-boot or connecting a JTAG 
>>> debug device to load code.
>>> _______________________________________________
>>> rtems-users mailing list
>>> rtems-users at rtems.org
>>> http://www.rtems.org/mailman/listinfo/rtems-users
> -- 
> Joel Sherrill, Ph.D.             Director of Research & Development
> joel.sherrill at OARcorp.com         On-Line Applications Research
> Ask me about RTEMS: a free RTOS  Huntsville AL 35805
> Support Available                (256) 722-9985

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