[U-Boot] [PATCH] spl: make image arg or fdt blob address reconfigurable

[Tom Rini]

On Tue, Apr 11, 2017 at 11:44:00PM +0000, Vikas MANOCHA wrote:
> Hi Tom,
> 
> > -----Original Message-----
> > From: Tom Rini [mailto:trini at konsulko.com]
> > Sent: Monday, April 10, 2017 5:29 AM
> > To: Vikas MANOCHA <vikas.manocha at st.com>
> > Cc: u-boot at lists.denx.de; Marek Vasut <marex at denx.de>; Stefan Agner <stefan.agner at toradex.com>; Jeremy Hunt
> > <Jeremy.Hunt at DEShawResearch.com>
> > Subject: Re: [U-Boot] [PATCH] spl: make image arg or fdt blob address reconfigurable
> > 
> > On Fri, Apr 07, 2017 at 03:38:13PM -0700, Vikas Manocha wrote:
> > 
> > > At present fdt blob or argument address being passed to kernel is
> > > fixed at compile time using macro CONFIG_SYS_SPL_ARGS_ADDR. FDT blob
> > > from different media like nand, nor flash are copied to the address
> > > pointed by the macro.
> > > The problem is, it makes args/fdt blob compulsory to copy which is not
> > > required in cases like for NOR Flash. This patch removes this limitation.
> > >
> > > Signed-off-by: Vikas Manocha <vikas.manocha at st.com>
> > > ---
> > >  arch/arm/lib/spl.c        | 7 +++----
> > >  arch/microblaze/cpu/spl.c | 6 +++---
> > >  arch/powerpc/lib/spl.c    | 8 ++++----
> > >  common/spl/spl.c          | 6 ++++--
> > >  common/spl/spl_nor.c      | 8 +-------
> > >  include/spl.h             | 5 ++---
> > 
> > I assume you've tested the spl_nor case afterwards, yes?  Did this
> > result in some measurable boot time decrease?  Thanks!
> 
> Yes, I tested it's working on board. Not sure how to measure the impact on boot time.

There's always good old grabserial.  But if you didn't measure
bootspeed, did this decrease the code size?  Or fix some other issue?
Thanks!

-- 
Tom
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