> >> Please use simpleImage.<your target dts name>.elf. > > > > Great, that seems to be it... > > Except that nothing happens when I jump to 0x40000, no message from the > > 0x40000? I recalled the entry point should be 0x400000 for > simepleImage.*.elf. So you have to change this on the file, > arch/powerpc/boot/wrapper.
Correct, I skipped a zero, the address is indeed 0x400000 > And also you should confirm if the upstream kernel support your board. Our board is a custom derivative from a ML405. My previous project uses ARCH=PPC and has been working fine for 2 years. I'm currently trying to go to ARCH=PowerPC and understand dts files in order to boot my first kernel. I assume I shouldn't have to change anything in my bootloader. After I jump to the kernel address, I don't even get the usual: loaded at: 00400000 004F559C board data at: 004F3520 004F359C relocated to: 0040505C 004050D8 zimage at: 00405E48 004F211C avail ram: 004F6000 08000000 Linux/PPC load: console=ttyUL0,115200 rw root=/dev/nfs ip=bootp Uncompressing Linux...done. Now booting the kernel Something wrong with my serial console ? > Additionally let's assume your bootloader create the map between the > virtual address and the physical address as 1:1. If so you want to execute > from 0x40000. But the actual PC address should be the loader address + > offset. You can get this by readelf. Here if your loader address is zero, > the offset will be pc address, not 0x40000. You can dump your memory to > check this. The bootloader has no concept of virtual address, right ? -- Guillaume Dargaud http://www.gdargaud.net/ _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev