On Tue, 2008-09-30 at 14:06 +0200, Simon Pasch wrote: > 3.) create a flat device tree blob (using dtc 1.2.0): > dtc -b 0 -V 17 -R 4 -S 0x3000 -I dts -O dtb -f devicetree.dts > target.dtb
The -V 17 is the current default, so the option isn't needed. The -S 0x3000 may not be enough, and is really obsoleted but the -p <pad-value> option too. Try, oh, -p 0x1000 instead. If you have a large DTS or resulting DTB file, it might lead to problems like this: > 7.) try to boot it: > => bootm > ## Booting kernel from FIT Image at 00700000 ... > Using '[EMAIL PROTECTED]' configuration > Trying '[EMAIL PROTECTED]' kernel subimage > Description: Vanilla Linux kernel > Type: Kernel Image > Compression: gzip compressed > Data Start: 0x007000ec > Data Size: 4052683 Bytes = 3.9 MB > Architecture: PowerPC > OS: Linux > Load Address: 0x00000000 > Entry Point: 0x00000000 > Hash algo: crc32 > Hash value: d4c2683b > Hash algo: sha1 > Hash value: 0f3c591c4f201d8cc1020725da0639d0b04d065a > Verifying Hash Integrity ... crc32+ sha1+ OK > Uncompressing Kernel Image ... OK > ## Flattened Device Tree from FIT Image at 00700000 > Using '[EMAIL PROTECTED]' configuration > Trying '[EMAIL PROTECTED]' FDT blob subimage > Description: Flattened Device Tree blob > Type: Unknown Image > Compression: Unknown Compression > Data Start: 0x00add8e4 > Data Size: 12288 Bytes = 12 kB > Hash algo: crc32 > Hash value: e07e11d2 > Hash algo: sha1 > Hash value: 8ee8e8ce07508c534666f6d79fe89e46b8a7ae7a > Verifying Hash Integrity ... crc32+ sha1+ OK > ERROR: Not a FDT image - must RESET the board to recover. > > > As you can see the image-type of the fdt changed from "Flat Device > Tree" to "Unknown Image" after decompressing the kernel, but the hash > integrity seems to be fine (?!) > > What am I doing wrong? What's missing? Do some length analysis and make sure you are not stomping on any images in memory too, especially after uncompressing. jdl ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ U-Boot-Users mailing list U-Boot-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users
