RPi hangs in bootloader

[Warner Losh]

On Feb 18, 2013, at 7:00 PM, Ian Lepore wrote:

> On Mon, 2013-02-18 at 18:25 -0700, Warner Losh wrote:
>> On Feb 18, 2013, at 6:05 PM, Ian Lepore wrote:
> [...]
>>> The general thing I'm up to today is learning enough about ubldr to use
>>> it effectively, and ultimately to see if it can be used to load a
>>> (semi-)generic kernel plus a set of modules you configure in loader.rc.
>>> I've just managed to do that by hand, now to see if loader.rc will
>>> cooperate.
>> 
>> Let us know how that works out.
>> 
>> Warner
> 
> It actually worked out pretty well.  This is my rc file now:
> 
> rpi# cat /boot/loader.rc
> fdt addr 0x100
> load kernel
> load uftdi
> set autoboot_delay=8000
> 
> The tricky bits are... if you're going to use any load commands, "load
> kernel" has to be first, and the delay of 8000 compensates for the fact
> that the get_timer() routine in the rpi u-boot we're all using right now
> returns micros rather than millis.
> 
> I think soon we'll be able to stop building kitchen-sink kernels for
> things like the *Plug computers and instead just let all the standard
> modules get built along with a fairly minimal kernel.  Folks should be
> able to download an image and enable features they want to try with a
> few edits to loader.rc and a reboot.

Yea, or we can finally get tagging on the .ko's working so that we can load modules automatically based on unattached FDT devices...

Warner