Ok, I got this working this morning with the following uEnv.txt additions:

mmcroot=/dev/mmcblk0p2 rw
mmcrootfstype=ext4 rootwait fixrtc

console=ttyO0,115200n8
kernel_file=uImage

loadaddr=0x82000000
fdtaddr=0x88000000

loadkernel=load mmc ${mmcdev}:${mmcpart} ${loadaddr} ${kernel_file}
loadfdt=load mmc ${mmcdev}:${mmcpart} ${fdtaddr} /boot/am335x-boneblack.dtb

loadfiles=run loadkernel; run loadfdt
mmcargs=setenv bootargs console=tty0 console=${console} ${optargs}
root=${mmcroot} rootfstype=${mmcrootfstype}
uenvcmd=run loadfiles; run mmcargs; bootm ${loadaddr} - ${fdtaddr}


Thanks for the help! :)

On 27 October 2014 21:31, Matt Denton <[email protected]> wrote:

> Ok thanks.
>
> I've left the office now so ill give it a go in the morning.
>
>
> On Monday, October 27, 2014, Robert Nelson <[email protected]>
> wrote:
>
>> On Mon, Oct 27, 2014 at 3:53 PM, Matt Denton <[email protected]>
>> wrote:
>> > Ok thanks. I currently have this:
>> >
>> > uenvcmd=load mmc 0:1 0x82000000 /boot/uImage; load mmc 0:1 0x88000000
>> > /boot/am335x-boneblack.dtb; bootm 0x82000000
>>
>> bootm 0x82000000 - 0x88000000
>>
>> Otherwise the kernel won't find the *.dtb (the - is for the empty
>> initramfs location)
>>
>>
>> > But as yet it's not working. Unfortunately I don't ahve the serial debug
>> > cable with me so I can't see where it is failing, hopefully I will have
>> this
>> > tomorrow and see what's going on.
>>
>> Regards,
>>
>>
>> --
>> Robert Nelson
>> http://www.rcn-ee.com/
>>
>> --
>> For more options, visit http://beagleboard.org/discuss
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>
>
> --
> Matt Denton
>
> micromagic systems ltd
> www.micromagicsystems.com
> www.hexapodrobot.com
>



-- 
Matt Denton

micromagic systems ltd
www.micromagicsystems.com
www.hexapodrobot.com

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