RKI Image for Raspberry PI 2

Alan Cudmore alan.cudmore at gmail.com
Thu May 26 02:03:21 UTC 2016

I just tried the firmware in the repository above ( did not realize the
whole git repo was over 3 gigs! )

I backed up my RTEMS pi SD card and copied the contents of the firmware
"boot" directory to my card. I replaced kernel.img and kernel7.img with my
RKI images for the Pi and Pi2.

RTEMS boots on my Pi Model A+, but not on the 2. Same RTEMS images that
booted on my old card.

My old card boot directory is based off of a NOOBS installation.  I'll have
to investigate more.. Maybe I can upload my SD card contents to my github
account ( I think that would be OK with the license, since the official
firmware is on github as well )


On Wed, May 25, 2016 at 9:30 PM, Alan Cudmore <alan.cudmore at gmail.com>

>  A couple of days ago, I created a new Ubuntu 16.04 virtual machine, built
> the RSB toolchain ( same version as in your log ) and built the RKI image
> for sparc/sis, raspberrypi, and raspberrypi2. They all work for me.
> I used these options to build RTEMS:
> ../../rtems-git/configure --target=arm-rtems4.12 \
> --enable-rtemsbsp="raspberrypi2 raspberrypi" \
> --enable-tests=samples \
> --enable-networking \
> --enable-posix \
> --prefix=$HOME/rtems/bsps/4.12 \
> I2C_IO_MODE=1 \
> It could be the firmware that is on your SD card.
> Next, I'm going to try to download the firmware repository from here:
> https://github.com/raspberrypi/firmware/tree/master/boot
> And I will see if I can replace kernel.img for the Pi A+/Zero and
> kernel7.img for the Pi2.
> If this works, then we dont have to rely on a pre-existing linux
> distribution to make the Pi boot.
> Alan
> On Wed, May 25, 2016 at 8:04 AM, Mudit Jain <muditjain18011995 at gmail.com>
> wrote:
>> As suggested by Alan, I did copy the image, rki.bin to kernel7.img,
>> However rtems doesn't boot in RPi 2 . For the same firmware I tried with
>> the raspbian kernel7.img, That works fine.
>> The attachment contains the commands used for installing RTEMS and logs
>> from RKI image creation for RPI2
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