On Thursday 21 August 2008, Valentine Barshak wrote: > > It seems that your bootwrapper is somehow not copying the correct MAC > > address to the device-tree. Not sure what's going wrong here. We usually > > don't use the bootwrapper but boot the uImage directly from U-Boot on all > > 4xx systems. > > > > You might want to debug the bootwrapper code, if possible drop the > > bootwrapper and use the uImage with a newer, device-tree enabled U-Boot > > version. > > U-boot thinks that all memory above the first 8MB is out of reach for > the kernel and puts kernel bootargs and boardinfo structure below 8MB as > close as possible to this limit. Including the i2c driver into the > kernel increases the kernel image size. So when u-boot unpacks the > kernel to 0x400000 (Load Address: 00400000) it overwrites the kernel > parameters. So when the kernel actually starts, it reads zeros instead > of boardinfo (and mac addresses) > > The 8MB limit is set for all AMCC boards in include/configs/amcc-common.h: > #define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux */ > > I think this limit is obsolete and can be moved to at least 64MB. > But you'll need to rebuild u-boot. > > Stefan, what do you think? Can we increase the default initial memory > map for AMCC boards in the next u-boot release, since u-boot has all > memory identity-mapped on ppc 44x?
Yes, it was our intention to increase the default map to a higher value a few weeks ago. I just forgot to really do it. I'll do this shortly. Thanks. Best regards, Stefan ===================================================================== DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: [EMAIL PROTECTED] ===================================================================== _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
