I think I've seen this happen when the boot code doesn't have the workarounds for the cache errata. I'm not sure if that code ever made it into grant's git server, but it's definitely is in the xilinx git tree at git.xilinx.com.
Steve -----Original Message----- From: [EMAIL PROTECTED] on behalf of wangyanlong Sent: Tue 4/29/2008 1:53 AM To: [email protected] Subject: Re: Virtex4FX12LC hangs in calibrating delay loop I meet the same problem as yours , have you fix your problem now ??? I am keep trying !!!! Thomas Glanzmann wrote: > > Hello, > I used the HEAD secretlabs kernel and used ml403 defconfig. I still see > no serial output from the _kernel_ on the serial console. But I do see > output from the in kernel embedded boot loader "load_kernel". I typed in > stop in xmd and got an instruction pointer which points to: > > c00045a0 <__delay>: > c00045a0: 2c 03 00 00 cmpwi r3,0 > c00045a4: 7c 69 03 a6 mtctr r3 > c00045a8: 4d 82 00 20 beqlr > c00045ac: 42 00 00 00 bdnz- c00045ac <__delay+0xc> > <<<<<<<< > c00045b0: 4e 80 00 20 blr > > So I guess it is the calibrating delay loop and I am not sure. I can > reproduce > this. It is always in this function. Now I wonder is my board missing > timer interrupts? What could be the reason for this. And of course one > much more important question: > > - Is the serial console initialized before or after the > calibrating delay loop? > > Is there a way to get a backtrace out of this? If that is the case what > do I have to do? Recompile the Kernel with frame pointers and attach > gdb? > > Thomas > _______________________________________________ > Linuxppc-embedded mailing list > [email protected] > https://ozlabs.org/mailman/listinfo/linuxppc-embedded > > -- View this message in context: http://www.nabble.com/Virtex4FX12LC-hangs-in-calibrating-delay-loop-tp11235297p16955743.html Sent from the linuxppc-embedded mailing list archive at Nabble.com. _______________________________________________ Linuxppc-embedded mailing list [email protected] https://ozlabs.org/mailman/listinfo/linuxppc-embedded
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