[PATCH 0/5] Makefile.boot cleanup

[Eric Miao]

On Thu, Jun 3, 2010 at 3:36 PM, Eric Miao <eric.miao at canonical.com> wrote:
> Several facts:
>
> 1. ZRELADDR in most cases can be auto detected by maksing PC with
>   0xf000_0000 if the zImage is placed within the first 256MiB from
>   the memory start, which is a sane assumption except for:
>
>   - when ARCH_MX1 or ARCH_SHARK is defined
>   - when ARCH_U300 is defined (U300 really is strange when defining
>     PHYS_OFFSET and ZRELADDR)
>   - or when ZBOOT_ROM is defined
>

And maybe we could restrict the assumption to 128MB, so that MX1
and SHARK can be included as well.

> 2. For the exceptions above or those situations where ZRELADDR still
>   needs to be specified, an option CONFIG_ZRELADDR is provided. So
>   if there is conflict when mutliple machines are selected (in the
>   near future), things can be manually fixed by menuconfig, instead
>   of playing tricks with Makefile.
>
> 3. INITRD_PHYS and PARAMS_PHYS are really used only for bootpImage,
>   and references in arch/arm/boot/compressed can be safely removed
>
> I've listed most of the zreladdr-y found in each Makefile.boot and
> made them default value in CONFIG_ZRELADDR, but still there could be
> mistakes. Please kindly try and report back, thanks.
>
>