[PATCH 1/2] ARM: S5PV310: Add support SROMC

Daein Moon moon9124 at samsung.com
Fri Oct 15 02:37:39 EDT 2010


Marek Szyprowski wrote:
> 
> Hello,
> 
> On Wednesday, October 13, 2010 2:16 PM Sangbeom Kim wrote:
> 
> > From: Daein Moon <moon9124 at samsung.com>
> >
> > This patch adds support SROMC for S5PV310 and S5PC210.
> >
> > Signed-off-by: Daein Moon <moon9124 at samsung.com>
> > Signed-off-by: Sangbeom Kim <sbkim73 at samsung.com>
> > ---
> >  arch/arm/mach-s5pv310/cpu.c                    |    5 ++
> >  arch/arm/mach-s5pv310/include/mach/map.h       |    4 ++
> >  arch/arm/mach-s5pv310/include/mach/regs-srom.h |   50
> ++++++++++++++++++++++++
> >  3 files changed, 59 insertions(+), 0 deletions(-)
> >  create mode 100644 arch/arm/mach-s5pv310/include/mach/regs-srom.h
> >
> > diff --git a/arch/arm/mach-s5pv310/cpu.c b/arch/arm/mach-s5pv310/cpu.c
> > index ffed262..873783a 100644
> > --- a/arch/arm/mach-s5pv310/cpu.c
> > +++ b/arch/arm/mach-s5pv310/cpu.c
> > @@ -81,6 +81,11 @@ static struct map_desc s5pv310_iodesc[] __initdata =
> {
> >  		.pfn		= __phys_to_pfn(S3C_PA_UART),
> >  		.length		= SZ_512K,
> >  		.type		= MT_DEVICE,
> > +	}, {
> > +		.virtual	= (unsigned long)S5P_VA_SROMC,
> > +		.pfn		= __phys_to_pfn(S5PV310_PA_SROMC),
> > +		.length		= SZ_4K,
> > +		.type		= MT_DEVICE,
> >  	},
> >  };
> 
> Do You really need to make a permanent mapping for the SROMC area? Cannot
the
> setup code in the mach-smdk*.c call ioremap(S5PV310_PA_SROMC) and put the
address it
> got to the ethernet device? This area will be probably useless for boards
other than
> SMDK.
> 
Hi,

It seems to be useless because only ethernet device uses the SROM interface.
Will this mapping be ready for devices that will use the SROM interface in
boards
other than SMDK?

Best regards,
Daein Moon

> <snip>
> 
> Best regards
> --
> Marek Szyprowski
> Samsung Poland R&D Center
> 
> 
> 
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