Le 23/09/2014 09:54, Dirk Müller a écrit :
Hi Alex,
But if I don't load the fdt file (bcm2835-rpi-b.dtb - what is that
anyway?), I get all the way to the network:
the fdt file is the device tree, its a binary blob that should exactly
describe the hardware. This is used to avoid the kernel having to
guess about the hardware (as sometimes probing is not possible on ARM
hardware due to lack of standardization). The obvious question for me
is whether you actually use a Raspberry Pi - Type B board. It looks
like the device tree is not actually matching your hardware.
if it boots without it - we might consider building an image without
the device tree, since I find it actually surprising that it works
without device tree.
I think you can use 2 kernel images for RPi:
* upstream kernel which need a device tree
* downstream kernel which still uses a *.c source file to describe the board
and not a device tree.
I thought I fixed that in my last JeOS commit (with the partition problem fix).
Guillaume
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