Raspberry Pi questions

[Ian Lepore]

On Tue, 2012-12-25 at 15:21 -0800, Oleksandr Tymoshenko wrote:
> On 2012-12-25, at 3:06 PM, Ian Lepore <freebsd at damnhippie.dyndns.org> wrote:
> 
> > On Tue, 2012-12-25 at 12:37 -0800, Oleksandr Tymoshenko wrote:
> >> On 2012-12-25, at 12:21 PM, Ian Lepore <freebsd at damnhippie.dyndns.org> wrote:
> >> 
> >>> I got my RPi running this morning, more or less.  I used the boot
> >>> partition from the latest image at http://www.peach.ne.jp/archives/rpi/
> >>> but I'm loading my own custom built kernel and world.  I have a few
> >>> questions...
> >>> 
> >>> Can I get ubldr to load a kernel using tftp, bootp, etc?  
> >> 
> >>    Yes. ubldr checks U-Boot devices (SD and net), then tries to locate
> >> FFS partition on SD card and if fails - falls back to NFS/bootp. You can fetch
> >> my image, boot partition there contains ubldr, FDT blob, config.txt and boot scripts:
> >> 
> >> http://people.freebsd.org/~gonzo/arm/rpi/freebsd-pi-r243778.img.gz
> > 
> > This is so close to working.  In u-boot I have an env var "usbethaddr"
> > which contains what seems to be the right address (it's an RPi
> > foundation oui).  But still when booting via ubldr it generates a random
> > address every time, apparently because smsc_fdt_find_mac() always
> > returns zeroes (I added a printf to the smsc driver).  If I hard-code
> > the right mac address in the smsc driver I get all the way to multiuser
> > mode.
> > 
> > Also, when ubldr launches it immediately begins to load the kernel from
> > sdcard before I can stop it.  I have to wait for that to finish and then
> > do "unload" then load the kernel from net0:.  Can I create a file that
> > contains different defaults or something?
> > 
> > The amount of ram reported by kernel startup is only 128mb.  u-boot says
> > 384mb, that's not right either.
> > 
> 
> All this means that kernel uses built-int dtb (I think at some point we should just
> remove built-in DTB), not the one provided by u-boot.  

That was it exactly.  My kernel config is doing including the standard
RPI-B and then adding a few options of my own, and I didn't notice it
had static dtb stuff in it.

It's all working now, thanks!

-- Ian