On Sat, Nov 21, 2015 at 1:32 PM, Bharath R <
r.bhar...@gmail.com> wrote:
> Hi,
>
> I want to build my own SPL and uboot for BBB and want to boot them via SD
> card. What I expect to do is, I want to reserve 1MB for SPL, 1MB for Uboot,
Considering SPL is usually less then 109Kb to boot and U-boot is less
then 512Kb, save a 1MB by having both spl/uboot in the first 1MB
> 5MB for Kernel rest rootfs in SD card. How can I do this? can anyone guide
> to a link where I can partition my SD card according this need?
> And what are the changes to be made in SPL to point Uboot from other 1MB
> partition, similar what are the necessary change to be done in Uboot to load
> the kernel from other partition of SD card to RAM(DDR3)?
>
> If it was a NAND Flash, I would've directly given the physical address.
> similarly can I give the physical address of SD to load from onto RAM?
Considering your treating the SD like "nand" by placing this objects
at specific location, just use the raw offsets on the mmc card and
make sure your partition is out of the way for the rootfs..
Regards,
--
Robert Nelson
https://rcn-ee.com/