I take it you are running PPC405 core, right (since it's possible use Microblaze there)? Try to uncomment "#define DEBUG" in lib_ppc/board.c.
You'll see u-boot output regarding board info, see whether it's consistent.
Regarding debug - do you use BDI2000? In any rate, are you sure kernel crashes on that printk() operation or you just don't see any output on console? Where exactly it crashes?
Leonid.
-----Original Message----- From: u-boot-users-bounces@lists.sourceforge.net [mailto:u-boot-users-bounces@lists.sourceforge.net] On Behalf Of Guillaume Berthelom Sent: Wednesday, May 02, 2007 9:20 AM To: u-boot-users@lists.sourceforge.net Subject: [U-Boot-Users] problem to load uImage but not zImage (on virtex-4board)
hi,
I'm trying to port Linux 2.6 on Avnet FX12 MM board with U-Boot and the help of xilinx ML403 config.
I have generate my costum xparameters.h file with EDK 8.2i. I use ELDK 4.1 and Linux 2.6.20.x. I have modified ml403.h u-boot's config file to adapt it for my board and I have no problem to boot u-boot. I use the right board_info structure from <asm/ppcboot.h> and not the one in xilinx_ml403.h.
When I load the zImage directly with xilinx xmd debugger, the kernel start without problem (if I don't have KGDB or SERIAL_TEXT_DEBUG option in my kernel config). But when I try to load the uImage with u-boot, the kernel start but crach befor I can see something on output. The kernel start because I debug it and the platform_init is ok, setup_arch too and it crach after ppc4xx_setup_arch at printk(KERN_INFO "Xilinx ML403 Reference System (Virtex-4 FX)\n") line when the kernel access in printk.c.
I use the opb_uart16550 IP in my Xilinx design and the associat drivers in u-boot and linux.
I'm new in linux embedded and I'm in internship...I have any idea where and what is the problem, certanly in the serial int I guest but I'm not sure.
Thanks and sorry for my english I'm fench. Guillaume Berthelom