[U-Boot] [PATCH] RFC: am35xx: Rearrange SPL on am35xx

[Tom Rini <trini@ti.com>]

On Thu, Dec 18, 2014 at 05:21:21PM -0700, Simon Glass wrote:

> This is an attempt to tidy up the early SPL code in an attempt to pave
> the way for driver model in SPL:
> 
> - Avoid setting up SDRAM before board_init_f()
> - Avoid touching global_data before board_init_f()
> - Allow board_init_f() to set up a new stack (seems that the SRAM stack
> is not large enough on these boards)
> 
> This needs more work but it does boot on Beaglebone Black.
> 
> Signed-off-by: Simon Glass <sjg@chromium.org>
> ---
> 
>  arch/arm/cpu/armv7/am33xx/board.c  | 60 ++++++++++++++++++++++++++------------
>  arch/arm/cpu/armv7/lowlevel_init.S |  4 ---
>  arch/arm/include/asm/spl.h         |  3 ++
>  arch/arm/lib/crt0.S                |  9 ++++++
>  include/configs/ti_armv7_common.h  |  5 ++--
>  5 files changed, 56 insertions(+), 25 deletions(-)

This takes things in the wrong direction I think.  Since omap3/4/5 have
the same problem we're going to have to duplicate a bunch of this code.
But we can do omap_save_boot_params a bit later I'm pretty sure we can
shove it into spl_board_init() in
arch/arm/cpu/armv7/omap-common/boot-common.c and I'm going to do my best
to do that today and test it on at least a few boards.

-- 
Tom
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