[U-Boot] [PATCH v7 13/19] Makefile: u-boot-with-spl.bin: Fix SPL padding

[Benoît Thébaudeau]

On Monday, February 18, 2013 9:06:30 PM, Scott Wood wrote:
> On 02/18/2013 02:01:59 PM, Benoît Thébaudeau wrote:
> > On Monday, February 18, 2013 8:47:28 PM, Scott Wood wrote:
> > > On 02/18/2013 01:52:10 PM, Benoît Thébaudeau wrote:
> > > > On Monday, February 18, 2013 8:37:29 PM, Scott Wood wrote:
> > > > > On 02/17/2013 10:16:49 AM, Benoît Thébaudeau wrote:
> > > > > > all the more none of the
> > > > > > various values defined for CONFIG_SYS_TEXT_BASE relatively to
> > > > > > CONFIG_SPL_TEXT_BASE would be compatible with an image built
> > by
> > > > > > appending U-Boot
> > > > > > to the generic SPL. Can you confirm?
> > > > >
> > > > > I don't follow.  CONFIG_SYS_TEXT_BASE is for where the payload
> > gets
> > > > > loaded to, and has nothing to do with its position in the
> > SPL-concat
> > > > > image, nor with the address that the SPL starts running at.
> > > >
> > > > Right, sorry, I meant CONFIG_SYS_NAND_U_BOOT_OFFS. It is 0, which
> > is
> > > > not
> > > > compatible with the payload being appended to the SPL in the
> > > > programmed image.
> > >
> > > That just means we load the whole thing, including SPL, so that
> > we're
> > > always loading from the start of the block.  Note the difference
> > > between CONFIG_SYS_NAND_U_BOOT_DST and CONFIG_SYS_NAND_U_BOOT_START.
> > 
> > OK. Hmm, this difference is CONFIG_SPL_MAX_SIZE, but
> > CONFIG_SPL_PAD_TO is not
> > defined, so the payload is right after the SPL in the image and the
> > SPL jumps to
> > somewhere in the middle of the payload?
> 
> It jumps to the beginning of the payload.  As mentioned elsewhere in
> the thread, mpc85xx NAND SPL is always fixed size (done in the linker
> script) because the reset vector comes at the end.  Thus, max size
> equals actual size without needing --pad-to.

OK, clear.

Benoît