Hi Stefan, I am getting Machine check exception when my video driver is initializing. When i searched the net i found that you also faced the same kind of problem. I have mentioned the VIDEO_IO_OFFSET as 0xf0000000. This address is nothing but CONFIG_SYS_PCI1_IO_VIRT which is mentioned on my config file.

Here the log of my output. ####################### U-Boot 2009.06 (Dec 05 2009 - 12:06:50) Data Patterns DPVPX0689 SBC COTS Module

CPU: 8641, Version: 2.1, (0x80900021) Core: E600 Core 0, Version: 2.2, (0x80040202) Clock Configuration: CPU:800 MHz, MPX:400 MHz DDR:200 MHz (400 MT/s data rate), LBC:25 MHz L1: D-cache 32 KB enabled I-cache 32 KB enabled L2: 1024 KB enabled Board: DPVPX0689 SBC I2C: ready DRAM: DDR: 1 GB Now running in RAM - U-Boot at: 3fe70000 FLASH: 64 MB *** Warning - bad CRC, using default environment PCI-EXPRESS 1: Host 0xf6008020=0x00000000 ...PCIE LTSSM=0x16, Negotiated link width=8 Scanning PCI bus 01 03 00 1000 0057 0100 00 02 01 10b5 8648 0604 00 06 00 1002 4c66 0300 ff 05 01 10b5 6540 0604 00 04 00 12d8 e130 0604 00 02 02 10b5 8648 0604 00 02 04 10b5 8648 0604 00 09 01 1131 1561 0c03 00 09 01 1131 1561 0c03 00 09 01 1131 1562 0c03 00 08 00 12d8 e130 0604 00 02 05 10b5 8648 0604 00 0a 00 12d8 e130 0604 00 02 06 10b5 8648 0604 00 02 08 10b5 8648 0604 00 02 09 10b5 8648 0604 00 02 0a 10b5 8648 0604 00 02 0b 10b5 8648 0604 00 01 00 10b5 8648 0604 00 PCI-EXPRESS 1 on bus 00 - 0f SRIO: Disabled Video: ATI Radeon video card (1002, 4c66) found @(6:0:0) rinfo->mmio_base = 0x50000000 rinfo->fb_local_base = 0xefc00000 videoboot: Booting PCI video card bus 6, function 0, device 0 Machine check in kernel mode. Caused by (from msr): regs 3fa6dba8 MSS error. MSSSR0: 00001000 NIP: 3FE81E1C XER: 20000000 LR: 3FE81D14 REGS: 3fa6dba8 TRAP: 0200 DAR: 00000000 MSR: 00101030 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 11

GPR00: 00000000 3FA6DC98 3FA6DF68 000003BA 00000005 3FA6DCB4 00000000 00000001 GPR08: 00000006 F00003BA 00000000 00000000 00000000 FFFFFFFF 3FEE5900 3FF70000 GPR16: FFFFFFBF FFBF7BFF FFFFFFEB FFFFDFFF 00001032 00000001 00000000 3FE722C4 GPR24: 3FEFC468 3FEFC468 3FEFC468 3FEFC468 3FEDE704 3FEFC468 3FEE6058 000003BA Call backtrace: 3FE82CCC 3FE900E4 3FE82AF8 3FE80EEC 3FE78998 3FE78DAC 3FE78E88 3FECD684 3FECD730 3FECC290 3FECC434 3FEB36E8 3FE7BDE8 3FE72560 machine check Resetting board....

Thanks.