On Thu, Apr 29, 2010 at 7:34 PM, Sanjay Kumar <sanjay.ku...@gmobis.com>wrote:
> Hi All, > We are porting U-boot. 2010.03 version for MIPS32 processor (Au1350). > Currently we are facing one problem: > > When I compile u-boot and program to NOR Flash using bdiGDB through BDI3000 > Debugger, I am observing u-boot hangs at exception i.e. at address > 0xbfc00570 after reset . > > error log is below: > > > Au1350>ti > Core number : 0 > Core state : Debug Mode > Debug entry cause : single step > Current PC : 0xbfc00400 > Current SR : 0x00400004 > Current LR (r31) : 0xbfc0f6e4 > Current SP (r29) : 0x803fff00 > Au1350>go > Au1350>halt > Core number : 0 > Core state : Debug Mode > Debug entry cause : JTAG break request > Current PC : 0xbfc00570 > Current SR : 0x00400002 > Current LR (r31) : 0xbfc0f6e4 > Current SP (r29) : 0x803fff00 > Au1350> > > After reset address 0xbfc00400, code executes lowlevel_init and > subsequently hangs at 0xbfc00570 (RomException). > > I'm attaching start.S and lowlevel_init.S files we are using. > romExcHandle is reached when one of the valid exceptions (filled using XVECENT) occur. From your start.S, there are 4 possibilities. Checking the value of register k0 can give you an idea of the actual exception. Hope this helps. Thanks, Bandi > > Please let me know if am doing anything wrong or missing something. > > With Thanks and Regards, > Sanjay Kumar > KPIT Cummins Infosystems Pvt Ltd > > > >
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