[U-Boot] [PATCH 2/2] tegra: enable lp0 on paz00

Tom Warren TWarren at nvidia.com
Mon Sep 10 21:32:00 CEST 2012


Marc,

> -----Original Message-----
> From: Stephen Warren [mailto:swarren at wwwdotorg.org]
> Sent: Monday, September 10, 2012 12:08 PM
> To: Marc Dietrich
> Cc: u-boot at lists.denx.de; Tom Warren
> Subject: Re: [PATCH 2/2] tegra: enable lp0 on paz00
> 
> On 09/10/2012 12:51 PM, Marc Dietrich wrote:
> > This enables LP0 to support suspend / resume on PAZ00.
> 
> Ooh. Did you test this out with the AC100 kernel, and have it work?
> That'd be pretty cool...
> 
> > diff --git a/board/compal/paz00/Makefile b/board/compal/paz00/Makefile
> 
> > -COBJS	:= $(BOARD).o
> > -COBJS	+= ../../nvidia/common/board.o
> > +COBJS-y	:= $(BOARD).o
> > +COBJS-y	+= ../../nvidia/common/board.o
> > +COBJS-$(CONFIG_TEGRA_CLOCK_SCALING) += ../../nvidia/common/emc.o
> 
> Hmmm. That's odd. I'd expect that to be part of the core Tegra code, rather
> than something boards have to pull in manually.

Stephen's right - this is already done in ../cpu/tegra20-common/Makefile when CONFIG_TEGRA_CLOCK_SCALING is defined. So no need to change the PAZ00 Makefile.

> 
> > diff --git a/include/configs/paz00.h b/include/configs/paz00.h
> 
> > +/* LP0 suspend / resume */
> > +#define CONFIG_TEGRA20_LP0
> 
> That's been renamed CONFIG_TEGRA_LP0 in u-boot-tegra/next.

As part of the pre-work for Tegra30 changes, I've changed generic Tegra defines, labels, etc. to be more non-specific, unless it does really refer to a Tegra20 feature, file, etc. As Stephen says, see u-boot-tegra/next's top commit.

Tom
-- 
nvpublic



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