[U-Boot] [PATCH-V2 4/4] AM35x: Add support for EMIF4

[Hiremath, Vaibhav]

> -----Original Message-----
> From: Wolfgang Denk [mailto:wd at denx.de]
> Sent: Thursday, May 06, 2010 1:44 AM
> To: Hiremath, Vaibhav
> Cc: u-boot at lists.denx.de
> Subject: Re: [U-Boot] [PATCH-V2 4/4] AM35x: Add support for EMIF4
> 
> Dear hvaibhav at ti.com,
> 
> In message <1272034546-26041-6-git-send-email-hvaibhav at ti.com> you wrote:
> > From: Vaibhav Hiremath <hvaibhav at ti.com>
> >
> > This patch adds support for the EMIF4 interface
> > available in the AM35x processors.
> >
> > Signed-off-by: Vaibhav Hiremath <hvaibhav at ti.com>
> > Signed-off-by: Sanjeev Premi <premi at ti.com>
> > ---
> >  arch/arm/cpu/arm_cortexa8/omap3/Makefile    |    3 +
> >  arch/arm/cpu/arm_cortexa8/omap3/emif4.c     |  168
> +++++++++++++++++++++++++++
> >  arch/arm/include/asm/arch-omap3/cpu.h       |   24 ++++
> >  arch/arm/include/asm/arch-omap3/emif4.h     |   79 +++++++++++++
> >  arch/arm/include/asm/arch-omap3/sys_proto.h |    3 +
> >  5 files changed, 277 insertions(+), 0 deletions(-)
> >  create mode 100644 arch/arm/cpu/arm_cortexa8/omap3/emif4.c
> >  create mode 100644 arch/arm/include/asm/arch-omap3/emif4.h
> >
> > diff --git a/arch/arm/cpu/arm_cortexa8/omap3/Makefile
> b/arch/arm/cpu/arm_cortexa8/omap3/Makefile
> > index 8cc7802..0a23fa5 100644
> > --- a/arch/arm/cpu/arm_cortexa8/omap3/Makefile
> > +++ b/arch/arm/cpu/arm_cortexa8/omap3/Makefile
> > @@ -36,6 +36,9 @@ COBJS	+= mem.o
> >  ifdef	CONFIG_SDRC
> >  COBJS	+= sdrc.o
> >  endif
> > +ifdef	CONFIG_EMIF4
> > +COBJS	+= emif4.o
> > +endif
> 
> Don't use ifdef, use COBJS-$(CONFIG_EMIF4) instead.
> 
> > diff --git a/arch/arm/include/asm/arch-omap3/sys_proto.h
> b/arch/arm/include/asm/arch-omap3/sys_proto.h
> > index 34e4e0d..7b425be 100644
> > --- a/arch/arm/include/asm/arch-omap3/sys_proto.h
> > +++ b/arch/arm/include/asm/arch-omap3/sys_proto.h
> > @@ -35,6 +35,9 @@ void memif_init(void);
> >  void sdrc_init(void);
> >  void do_sdrc_init(u32, u32);
> >  #endif
> > +#if defined(CONFIG_EMIF4)
> > +void emif4_init(void);
> > +#endif
> 
> I guess you can omit the #ifdef here, right?
> 
[Hiremath, Vaibhav] Denk,

We have OMAP families supporting both SDRC and EMIF4 (obviously mutually exclusive), so we need to add this #ifdef.

Thanks,
Vaibhav

> Best regards,
> 
> Wolfgang Denk
> 
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