hi,
Am Montag, den 29.02.2016, 10:47 -0800 schrieb Wolfgang Tolkien:
...
>
> To be more specific, I currently have an AP148 development in front of
> me, which has a Qualcomm IPQ8064 CPU (2x 1.4 GHz ARM) with 32MB NOR
> flash and 256MB NAND flash (which could eventually be increased). The
> CPU boots off the NOR flash, which contains a number of Qualcomm
> specific bootloaders and eventually passes control over to u-boot.
> U-boot then loads the kernel. Each of these components (various
> bootloaders and kernel) reside in their own partition on NOR flash.
> The kernel eventually loads a UBI root file system from NAND flash.
>
where does u-boot reside in that scenario, NOR or NAND ?
there are a few uboot config options we require in the current boot
process (raw initrd support, userspace needs to be able to access the
uboot env to set variables), so you either need to be able to
update/replace the default binary or, if the architecture supports it,
chainload a second uboot binary with the required options enabled.
everything else, like update scripts can live in the gadget snap and be
freely defined.
ciao
oli
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