Hi Daniel, I think you'd better read Documentation/powerpc/bootwrapper.txt, and choose the appropriate image target.
-------------------------------------------------- From: "Daniel Ng" <daniel_n...@lycos.com> Sent: Friday, December 19, 2008 2:31 PM To: <linuxppc-embedded@ozlabs.org> Subject: Device Tree setup for 8272-based board > Hi, > > We are migrating our PowerPC 8272-based board from 2.6.14 to 2.6.27. > > One of the big changes is the need for a Device Tree for bootup. > > So far, my bootup looks like the below (using u-boot). > > I am just using arch/powerpc/boot/cuboot-824x.c > and /arch/powerpc/boot/dts/mpc8272ads.dts for now. Therefore, all the > settings > as printed below are wrong ie. Memory, ENET0 mac, CPU clock freq, etc. > > When I change the settings in mpc8272ads.dts and do a fresh recompile, the > settings do not change. However, if I use another cuboot*.c file, I get a > different set of printed settings eg. 2 ethernet ports instead of 1. This is > fine, but I don't see where in the cuboot*.c file these settings are > specified. Can someone suggest where these might be? > > Cheers, > Daniel > > > ## Booting image at 00200000 ... > Image Name: Linux-2.6.27-mybuild > Image Type: PowerPC Linux Kernel Image (gzip compressed) > Data Size: 1477233 Bytes = 1.4 MB > Load Address: 00400000 > Entry Point: 00400594 > Verifying Checksum ... OK > Uncompressing Kernel Image ... OK > Memory <- <0x0 0x4000000> (64MB) > ENET0: local-mac-address <- c0:a8:01:4b:7e:13 > CPU clock-frequency <- 0xa175c100 (2709MHz) > CPU timebase-frequency <- 0x4ead9a0 (83MHz) > CPU bus-frequency <- 0x13ab6680 (330MHz) > > zImage starting: loaded at 0x00400000 (sp: 0x03f7c9c8) > Allocating 0x316e8c bytes for kernel ... > gunzipping (0x00000000 <- 0x0040c000:0x0071367c)...done 0x2f41a0 bytes > > Linux/PowerPC load: > Finalizing device tree... flat tree at 0x40acd8 > > (there is no more output after this) > > > > _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded@ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded > _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded