[U-Boot] [PATCH v1 1/1] fastboot: Add support for flashing zImage

[Tom Rini]

On Wed, Feb 25, 2015 at 06:30:30PM -0600, Rob Herring wrote:
> On Wed, Feb 25, 2015 at 4:56 PM, Dileep Katta <dileep.katta at linaro.org> wrote:
> > This patch adds support to flash zImage to the boot partition on eMMC.
> > Usage: fastboot flash zImage <path_to_zImage>
> 
> So this replaces the kernel in an existing bootimage. What's wrong
> with "fastboot flash boot", "fastboot flash:raw boot <kernel>" or
> "fastboot boot <kernel>"? It is a bit fragile to be updating your
> kernel without updating the ramdisk. arm64 has no zImage, so this
> command is somewhat arm32 specific.
> 
> Fastboot is already plagued with a variety of implementations and
> behaviors. Some unification here would be good and just adding
> whatever various commands have been added to vendor u-boot's is not
> going to help. Adding to the combinations of things to test also
> bothers me.

+1.  Just how much room do we have, or not have, to be compatible with
existing tools but also abstract some of this out so that different
boards can "I want a layout like this ..." (one set of kernel, device
tree, initrd) and another "I want a layout like this ..." (two sets, for
redundancy).

-- 
Tom
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