On Thu, Nov 13, 2014 at 07:08:59PM +0100, Hans de Goede wrote: > Hi all, > > So as you know I've been working on getting mainline u-boot to boot the > older android derived linux-sunxi kernels, as some people need features > not yet in mainline, and I would like there to be only one u-boot for both. > > I had this working a while ago, but recently it broke, this is caused by > config_distro_defaults.h setting CONFIG_OF_LIBFDT, if I undef that > after including config_distro_defaults.h things work again. > > I do not know if CONFIG_OF_LIBFDT is a recent addition to > config_distro_defaults.h, > or if something else broke things. But if I do not undef it, boot fails with: > > sun7i# bootm start 0x48000000 > ## Booting kernel from Legacy Image at 48000000 ... > Image Name: Linux-3.4.75.sun7i+ > Image Type: ARM Linux Kernel Image (uncompressed) > Data Size: 3966672 Bytes = 3.8 MiB > Load Address: 40008000 > Entry Point: 40008000 > Verifying Checksum ... OK > Could not find a valid device tree
My hunch is that we've got more fall-out from Simon's re-org of the bootm code ages ago. It should be valid to try and boot a kernel without a device tree and other parts of the code base (for example arch/arm/lib/bootm.c) still do a FDT-or-ATAGS dance for example. -- Tom
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