Re: [U-Boot] How to debug uboot code on Samsung S5pv210 chip by eclipse and JTAG?

Dear 坚石,

Oh, I want to use eclipse to debug uboot .

All right, I have no experience with eclipse.

And the debugger is OpenOCD.

Ok, so you need to connect GDB backend to it somehow.

But I don't known how to establish the enviroment settings to

uboot debugging.Because I should write some init script to close MMU,init DDR2,etc,then I can begin to connect the target.

Right, there's openocd TCL scripting stuff for that. You'd have to write the correct registers before starting u-boot on the target. I dunno if the DRAM is inited in U-Boot SPL or via some bootrom stuff on your platform. You can check the former by analyzing u-boot code a bit, the later by looking into your datasheet.

I used  1GB DDR2 and S5PV210 CPU in my paltform.

Best regards, steven.

2012/5/29 Marek Vasut marek.vasut@gmail.com:

...

Dear 坚石,

...

I have found some tutorials to debug uboot an samsung 2440 and

6410 chip by JTAG .I also known I must write a init program or script first .But I don't known to debug uboot on S5pv210 and write the init DDR script.Anyone gives me a guide to establish the process.

Thanks.

What does eclipse have to do with it?

What debugger do you use? OpenOCD/BDI/Peedi/... ?

Best regards, Marek Vasut

Best regards, Marek Vasut