On Thu, Jan 23, 2014 at 3:48 PM, JYOTI DUBEY jyoti0801@gmail.com wrote:
Can anyone tell how to understand the flow of u-boot source code? I am working on ARM processor and the board used is Nitrogen6X.
Ideally, it would be best to have a JTAG debugger and step through the execution. A quick-and-dirty approach, is to sprinkle printf() statements after your serial console has been initialized.
Off-topic, but for sake of understanding u-boot in general, I'm using the gdb debugger and tracing over the sandbox build (it configures u-boot as a normal linux application). Alternatively, if you can figure out how to use qemu with ARM, that might give you a better idea for your board, instead of following what x86 does. Sadly, I couldn't get qemu-arm working with uboot even after months of trying. :(
-Abraham V.