Thank you, Stefan Yes, there's absolutely no documentation about the 5410, so I'm relying on the Linux sources, which are not exactly friendly to extract information. Right now I've become quite busy but I'll make slow progress. I'll check out your sources, it's probably a much cleaner approach. I followed the topic where it seems that base-hw is the future of genode, so perhaps it's better to drop Fiasco and just write drivers and improve base-hw rather than trying to port Fiasco.OC. Thanks again for the help.
Claudio
On 11/26/2013 09:14, Stefan Kalkowski wrote:
Hi Claudio,
coincidentally, an ODROID XU board ended up on by desktop. I've enabled rudimentary support for it using Genode's hw kernel (not Fiasco.OC). Maybe, you'll profit from it when doing further research on top of Fiasco.OC. You can find an intermediate state in this topic branch:
https://github.com/skalk/genode/tree/odroid
Sadly, I couldn't find any resources about Exynos-5410's memory map, irqs, or clock tree beside the Linux kernel tree from "hardkernel" itself :-(.
Best regards Stefan
On 11/13/2013 02:31 AM, Claudio L. wrote:
Update: The crash happens while mapping memory, during the early stages of the bootstrap process, most likely due to differences in the chipset. I've already created all the makefiles and directories needed for a separate "odroidxu" target, for now just a copy of the arndale ones, and I'm ready to start coding. I created one spec called "exynos5octa", which will complement the existing "exynos5", on the few items where there are architectural differences in the SOC.
Claudio
On 11/06/2013 07:54, Claudio L. wrote:
Hello, I'm creating this thread where I'll report the status of my port of genode to the Odroid-XU board.
Initial bootstrap went well. Board executed the bootstrap and hung right after showing "Hello from startup::stage2", which is where most of the hardware initialization takes place. Here's where the real porting job begins.
For others with the XU board, here's what I did to test it:
- After having checked out genode repository, and installed the
additional packages per the genode instructions to build Fiasco.OC, install one more package:
apt-get install u-boot-tools
This will give us the mkimage command we need.
then, from the main genode directory:
cd base_foc make prepare cd .. ./tool/create_builddir foc_arndale BUILD_DIR=build.exynos cd build.exynos make
This make is just to see if you have anything missing. You should be able to get to the end without any errors. If not, something went wrong.
Now we need a small change to generate the uboot image:
cd build.exynos/etc
edit the file build.conf and add the line
RUN_OPT = --target uboot
then build the printf demo with:
make clean [[make sure you are in the build.exynos directory] make run/printf
If everything goes well, compile will end with an error saying it can't run automatically on this target. This is normal, since we never removed the lines in the run script that try to use qemu to run the test. The important thing is that in build.exynos/var/run/printf, there's a 'uImage' file.
Put the file on a microSD card, insert the card into the Odroid-XU. Connect to the serial console (I use the excellent Putty), configured as 115200, 8N1. The name of the serial port might vary, depending on which USB port the board was plugged in. To access the serial port, Putty might need to be run as root.
Boot the board and press space quickly to stop the boot process at u-boot (green light on the board should be on). Now issue the following commands:
mmc dev 1 fatload mmc 1 0x60000000 uImage
It should say it's OK and that it read about 600k from the sd card.
finally, boot the image:
bootm 0x60000000
If everything goes well, you should see a lot of text in the console, ending with "Hello from startup::stage2".
That's as far as I got today. More to come... Claudio
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