I am chasing a very similar problem. Did you ever find resolution to your problem? Can you share what you did to get past this?
Thanks. -- Amit Shah shahamit at gmail.com <mailto:linuxppc-embedded%40ozlabs.org?Subject=RFI%20doesn%27t%20branch% 20off%3F&In-Reply-To=> Wed Aug 25 20:20:33 EST 2004 * Previous message: RFI doesn't branch off? <http://ozlabs.org/pipermail/linuxppc-embedded/2004-August/015393.html> * Next message: value of XIP? and whether it works with 2.6 kernel? <http://ozlabs.org/pipermail/linuxppc-embedded/2004-August/015394.html> * Messages sorted by: [ date ] <http://ozlabs.org/pipermail/linuxppc-embedded/2004-August/date.html#154 10> [ thread ] <http://ozlabs.org/pipermail/linuxppc-embedded/2004-August/thread.html#1 5410> [ subject ] <http://ozlabs.org/pipermail/linuxppc-embedded/2004-August/subject.html# 15410> [ author ] <http://ozlabs.org/pipermail/linuxppc-embedded/2004-August/author.html#1 5410> _____ Amit Shah wrote: > > Hi all, > > I have a strange issue with a custom board running a 750GX on a > Marvell 64360 bridge. I transferred control to the uImage via u-boot > (which I had to modify for my board-specific UART and SDRAM inits, > also disabling PCI). > > Using the UART that's initialized by u-boot, I put some putchar()s in > head.S to figure out where the kernel was freezing. It seems 'rfi' in > mmu_off doesn't jump off to '__after_mmu_off' as expected. I also put > some pattern into SDRAM before an after mmu_off. I just see the > pattern (via a PCI interface) put before mmu_off. > > The contents of SRR0 correctly point to __after_mmu_off just before > the 'rfi'. However, the 'rfi' documentation says the value of SRR0 is > concatenated with '0x0b00'. I don't think this should be done. > Anyways, since this code is supposed to work, I'm not sure why it > isn't working. If I keep the DR enabled in MSR, the RFI goes back properly... disabling DR causes some randomness. > > Can any u-boot initializations be causing this? I guess not, I've not > touched any CPU-specific settings in u-boot. > > Can anyone give me some pointers? -- Amit Shah http://amitshah.nav.to/ -------------- next part -------------- An HTML attachment was scrubbed... URL: http://ozlabs.org/pipermail/linuxppc-embedded/attachments/20051205/1fdf6d94/attachment.htm
