Successful Hello world from RPi4B AArch64 over serial

[Joel Sherrill]

On Mon, Sep 19, 2022, 1:23 PM Alan Cudmore <alan.cudmore at gmail.com> wrote:

> I built the TF-A binary, your dev branch, used the config.txt described
> below, and was able to run unlimited.exe. (I’m using a Pi4b 2GB)
>
> Great milestone!
>

This is great news! Now to get it merged for others.

Are any other peripherals from previous Pi generations the same? Curious if
wired networking might be low hanging fruit.

--joel

> Alan
>
>
>
> *From: *Noor Aman <nooraman5718 at gmail.com>
> *Sent: *Monday, September 19, 2022 11:11 AM
> *To: *William Moore <WKMoore at gmail.com>; Alan Cudmore
> <alancudmore at gmail.com>; Hesham Moustafa <heshamelmatary at gmail.com>;
> rtems-devel at rtems.org <devel at rtems.org>
> *Subject: *Successful Hello world from RPi4B AArch64 over serial
>
>
>
> Hey everyone,
>
> I've managed to get RTEMS6 on the Raspberry pi 4B rev 1.4. Every test ran
> fine except for minimum.exe, It gave a fatal error.
>
>
>
> Here's my setup for running RTEMS6 on RPi4B:
>
>
>
> TF-A is required to enable GIC on RPi. I had tried to use armstub-gic.S (
> https://github.com/raspberrypi/tools/blob/master/armstubs/armstub8.S) but
> it didn't work out. TF-A on other hand did work pretty well.
>
>
>
> Steps to get TF-A binary are described here:
> https://trustedfirmware-a.readthedocs.io/en/latest/plat/rpi4.html
>
>
>
> Config.txt section:
>
> arm_64bit=1
> enable_uart=1
> gpio=22-27=np
> enable_jtag_gpio=1
> dtoverlay=disable-bt
> kernel=kernel8.img
> enable_gic=1
> armstub=bl31.bin
>
>
>
> RTEMS6
>
> My branch (noov-dev): https://github.com/0xnoor/rtems/tree/noor-dev
>
>
>
>
> _______________________________________________
> devel mailing list
> devel at rtems.org
> http://lists.rtems.org/mailman/listinfo/devel
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.rtems.org/pipermail/devel/attachments/20220919/c31530dd/attachment.htm>