[PATCH 1/2] IPQ40xx: Add DRAM detection & FDT fixup

[Robert Marko]

On Mon, Aug 3, 2020 at 4:39 PM Tom Rini <trini at konsulko.com> wrote:
>
> On Mon, Aug 03, 2020 at 01:52:19PM +0200, Robert Marko wrote:
>
> > Fixup the Linux FDT with the detection of onboard DRAM as
> > provided by SBL (Secondary boot loader) by reading
> > the shared-memory region.
> >
> > Imported from Snapdragon target.
> >
> > Signed-off-by: Robert Marko <robert.marko at sartura.hr>
> > Cc: Luka Perkov <luka.perkov at sartura.hr>
> > ---
> >  arch/arm/mach-ipq40xx/Makefile            |  1 +
> >  arch/arm/mach-ipq40xx/dram.c              | 99 +++++++++++++++++++++++
> >  arch/arm/mach-ipq40xx/include/mach/dram.h | 12 +++
> >  3 files changed, 112 insertions(+)
> >  create mode 100644 arch/arm/mach-ipq40xx/dram.c
> >  create mode 100644 arch/arm/mach-ipq40xx/include/mach/dram.h
>
> Is this as-is?  If so, we need to figure out something or another to
> make sharing the code, rather than copying, possible.  How are these
> both grouped in the kernel?  Thanks!

Yes, the Snapdragon target uses the identical code.
The kernel does not have code for this but rather relies on the
bootloader to do it.
>
> --
> Tom