Dear Valentine Barshak, In message <[EMAIL PROTECTED]> you wrote: > > 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 */
See also the initrd_high environment variable to adjust the limits without need for recompiling U-Boot. Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: [EMAIL PROTECTED] The complexity of software is an essential property, not an acciden- tal one. Hence, descriptions of a software entity that abstract away its complexity often abstract away its essence. - Fred Brooks, Jr. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
