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? https://github.com/seL4/seL4/blob/master/src/plat/exynos_common/io.c - 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 Hi, 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 paddr=[41000000..4126401f] ELF-loading image 'kernel' paddr=[40000000..4002dfff] vaddr=[e0000000..e002dfff] virt_entry=e0000000 ELF-loading image 'sel4test-driver' paddr=[4002e000..40388fff] vaddr=[8000..362fff] virt_entry=13868 Enabling hypervisor MMU and paging Enabling MMU and paging Jumping to kernel-image entry point... �⧹I�AIq9Fy6 1)�a&I99)�6� Yq��摦P�^б��F��^/A�yyyyyyyyy�Y �)aay���XY�ǡyQ)�q��O�a@ Ia)!Fyaay �)��XY��������.6I�)&FvF�6fF�����VƑ�y��P�)aay���XY�ǡyQ)�q��O�a@ Ia Is it expected? or am I doing something wrong? Any help would be appreciated. Best, -- Norrathep (Oak) Rattanavipanon M.S. in Computer Science University of California - Irvine ________________________________ The information in this e-mail may be confidential and subject to legal professional privilege and/or copyright. National ICT Australia Limited accepts no liability for any damage caused by this email or its attachments.