Hi,

I am a rookie as far as NAND boot debugging is concerned. I have remote gdb working just fine. I wish to single step from the point the macro for nand load starts(assembly code). (nand_load). To do that, i set a instruction breakpoint on BDI3000 using the "BI" command. looks like the cpu entered debug mode but i get a "GDB: read data abort ignored" on the BDI command line interface. I am not familiar with that message. Here's a snapshot of what i am getting:

TARGET: Reset sequence passed TARGET: resetting target passed TARGET: processing target startup .... TARGET: processing target startup passed GDB: read data abort ignored

Myboard>info Core number : 0 Core state : debug mode (ARM) Debug entry cause : Vector Catch (PREFETCH ABORT Current PC : 0x598524fc Current CPSR : 0x000001d3 (Supervisor) Myboard>ti Core number : 0 Core state : debug mode (ARM) Debug entry cause : Debug Request Current PC : 0x1001ffcc Current CPSR : 0x000001d7 (Abort)

Are there any cheat sheets available for NAND boot debugging with U-boot?

Thanks in advance for your help!

-Alfred