Re: Issues compiling barebox on raspberry pi

From: "r.hieber@pengutronix.de" <r.hieber@pengutronix.de>
To: Kai Che <Kai.Che@mixed-mode.de>
Cc: barebox@lists.infradead.org
Subject: Re: Issues compiling barebox on raspberry pi
Date: Wed, 17 Oct 2018 14:27:00 +0200	[thread overview]
Message-ID: <20181017122700.yl5xavieafvjrhav@pengutronix.de> (raw)
In-Reply-To: <1539777724792.91226@mixed-mode.de>

Hello,

please direct questions to the barebox mailing list (CCed), there are
more people there who can answer you :-)

On Wed, Oct 17, 2018 at 12:02:03PM +0000, Kai Che wrote:
> 
> Dear Mr. Roland Hieber,
> 
> I'm an electrical engineering student currently writing my master thesis and my topic is about enabling secure boot for the barebox bootloader with a TPM 2.0.
> 
> Unfortunetly, I am really struggling with booting barebox on raspberry pi 2 and 3.
> 
> I followed the documentation on: https://www.barebox.org/doc/latest/boards/bcm2835.html#raspberry-pi and did the following steps:
> 
> 1. git clone https://git.pengutronix.de/git/barebox (I tried with master, next and stable/v2018.09 branches)

Unfortunately the documentation was updated before the respective patch
series was merged. If you pull the branch v2018.04.0/topic/rpi from
git://git.pengutronix.de/rhi/barebox, you should get a
barebox-raspberry-pi-3.img. (I think that branch should also be able to
be rebased onto the current master, but I have not tested that.)

The rest of your steps below look fine to me.

 - Roland

> 
> 2. export ARCH=arm and export CROSS_COMPILE=/usr/bin/arm-linux-gnueabihf-
> 
> 3. make rpi_defconfig
> 
> 4. make => generates the images barebox-raspberry-pi-1.img and barebox-raspberry-pi-2.img but no barebox-raspberry-pi-3.img!
> 
> 5. copy barebox-raspberry-pi-2.img to SD card and rename to barebox.img
> 
> 6. create config.txt with kernel=barebox.img enable_uart=1 dtoverlay=pi3-miniuart-bt
> 
> 7. turn on raspberry pi (connected with HDMI and UART) but it gets stuck at the rainbowscreen with no UART output.
> 
> => But booting with the default image from NOOBS is working perfectly.
> 
> My PC is set up with gcc version 7.3.0 (Ubuntu/Linaro 7.3.0-27ubuntu1~18.04) and I tried with Raspberry Pi 2 Model B, Raspberry Pi Zero W and Raspberry Pi 3 Model B.
> 
> Do you have any idea why it is not working? Am I using a wrong compiler version?
> 
> Could you maybe provide me with a working barebox-raspberry-pi-2.img and barebox-raspberry-pi-3.img for testing?
> 
> Thank you very much.
> 
> Best Regards
> 
> Kai Che
> 
> 
> 
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-- 
Roland Hieber                     | r.hieber@pengutronix.de     |
Pengutronix e.K.                  | https://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim | Phone: +49-5121-206917-5086 |
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