Hi Alex,

Thanks for your reply. I'm not really familiar with serial port. How can I tell if the config in https://github.com/seL4/seL4/blob/master/src/plat/exynos_common/io.c needs changes?

This is the serial cable I'm using:


On Thu, Apr 14, 2016 at 5:23 PM, Alexander Kroh <Alexander.Kroh@nicta.com.au> wrote:
Hi Oak,

Assuming that you are building a debug version of the kernel, the next line that should be printed is "Bootstrapping kernel".

Are any changes required for the serial port driver?

 - Alex

From: Devel [devel-bounces@sel4.systems] on behalf of Norrathep Rattanavipanon [nrattana@uci.edu]
Sent: Friday, 15 April 2016 04:39
To: devel@sel4.systems
Cc: GTS; El Defrawy, Karim M
Subject: [seL4] Problem porting sel4 into XU4


I'm trying to port sel4 into ODROID-XU4 by following the wiki (https://wiki.sel4.systems/Hardware/odriod-XU).

So far I can successfully enable HYP mode as indicated by
[    0.198398] [c0] CPU: All CPU(s) started in HYP mode.
[    0.198433] [c0] CPU: Virtualization extensions available.

as well as generate sel4test-driver-image-arm-exynos5 image.

However, we cant do fastboot in XU4 since it doesnt have usb otg.
Thus, I followed booting from sd card from https://wiki.sel4.systems/Hardware/General-ARM and copied the image into the first partition of sd card and do the following:

Exynos5422 # fatload mmc 0 0x48000000 sel4test-driver-image-arm-exynos5
Exynos5422 # bootelf 0x48000000

and here's the output:

## Starting application at 0x41000000 ...

ELF-loader started on CPU: ARM Ltd. Cortex-A7 r0p3

Switching CPU...

ELF-loader started on CPU: ARM Ltd. Cortex-A15 r2p3
ELF-loading image 'kernel'
ELF-loading image 'sel4test-driver'
Enabling hypervisor MMU and paging
Enabling MMU and paging
Jumping to kernel-image entry point...

�⧹I� AIq9 Fy   6        1)�a &I99)� 6�   Yq��摦P�^б�� F��^/A�yyyyyyyyy    �Y    �)aay ���XY�ǡ yQ) �q��O�a@     Ia)! Fy  aay    �) ��XY������ ��.6I�) & FvF�6fF�����VƑ�y�  �P�)aay ���XY�ǡ yQ) �q��O�a@  Ia

Is it expected? or am I doing something wrong? Any help would be appreciated.


Norrathep (Oak) Rattanavipanon
M.S. in Computer Science
University of California - Irvine


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Norrathep (Oak) Rattanavipanon
M.S. in Computer Science
University of California - Irvine