[U-Boot] [PATCH v4] da830: Move common code out of da830evm.c file

[Sudhakar Rajashekhara <sudhakar.raj@ti.com>]

Hi Nick,

On Thu, Jun 03, 2010 at 16:23:36, Nick Thompson wrote:
> On 03/06/10 05:25, Sudhakar Rajashekhara wrote:
> > TI's DA850/OMAP-L138 platform is similar to DA830/OMAP-L137
> > in many aspects. So instead of repeating the same code in
> > multiple files, move the common code to a different file
> > and call those functions from the respective da830/da850
> > files.
> > 
> > Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
> > Acked-by: Nick Thompson <nick.thompson@ge.com>
> > Acked-by: Ben Gardiner <bengardiner@nanometrics.ca>
> > ---
> > Since v3:
> > Fixes the following compiler error for other davinci targets:
> > 
> > misc.c: In function 'irq_init':
> > misc.c:51: error: 'davinci_aintc_regs' undeclared (first use in this function)
> > misc.c:51: error: (Each undeclared identifier is reported only once
> > misc.c:51: error: for each function it appears in.)
> > make[1]: *** [.../build/board/davinci/common/misc.o] Error 1
> > make: *** [.../build/board/davinci/common/libdavinci.a] Error 2
> > make: *** Waiting for unfinished jobs....
> > 
> >  board/davinci/common/misc.c       |   32 ++++++++++++++++++++++++++++++++
> >  board/davinci/common/misc.h       |    7 +++++++
> >  board/davinci/da830evm/da830evm.c |   28 +++++++++++-----------------
> >  3 files changed, 50 insertions(+), 17 deletions(-)
> > 
> > diff --git a/board/davinci/common/misc.c b/board/davinci/common/misc.c
> > index 25ca326..dcf3cf2 100644
> > --- a/board/davinci/common/misc.c
> > +++ b/board/davinci/common/misc.c
> > @@ -41,6 +41,24 @@ int dram_init(void)
> >  	return(0);
> >  }
> >  
> > +#ifdef CONFIG_SOC_DA8XX
> > +void irq_init(void)
> > +{
> > +	/*
> > +	 * Mask all IRQs by clearing the global enable and setting
> > +	 * the enable clear for all the 90 interrupts.
> > +	 */
> > +
> > +	writel(0, &davinci_aintc_regs->ger);
> > +
> > +	writel(0, &davinci_aintc_regs->hier);
> > +
> > +	writel(0xffffffff, &davinci_aintc_regs->ecr1);
> > +	writel(0xffffffff, &davinci_aintc_regs->ecr2);
> > +	writel(0xffffffff, &davinci_aintc_regs->ecr3);
> > +}
> > +#endif
> 
> In the current code base, this code is not included in the da830 compilation
> if IRQs are not used. With this patch the code is included, but not called
> if IRQs are not used. IRQs are often not used, so this change causes bloat.
> 
> Could you please make this conditional on IRQs?
> 

I added the code between CONFIG_SOC_DA8XX macro because davinci_aintc_regs
declaration is in between this macro in hardware.h file. So they'll not be
available for targets other than DA830 and DA850. Also, AINTC register
mapping is different on DM644x, DM646x, DM355 and DM365. Shall I consider
moving the irq_init function out of misc.c?

Thanks,
Sudhakar