[U-Boot] [PATCH 3/6] mtd: nand: Add the sunxi NAND controller driver

[Boris Brezillon]

On Mon, 06 Jun 2016 12:56:48 -0500
Scott Wood <oss at buserror.net> wrote:

> On Mon, 2016-06-06 at 18:22 +0200, Boris Brezillon wrote:
> > On Mon, 6 Jun 2016 17:36:10 +0200
> > Hans de Goede <hdegoede at redhat.com> wrote:
> >   
> > > > +#ifndef CONFIG_SPL_BUILD
> > > > +void sunxi_nand_init(void);
> > > > +#endif
> > > > +    
> > > 
> > > Can we have this in a header somewhere please, and without
> > > the #ifdef around it, that is not necessary for prototypes.  
> > 
> > Hehe, I was expecting this one :-). Do you know where I should put this
> > prototype definition? A board.h file in board/sunxi/?  
> 
> It's defined in drivers/mtd/nand and called from board/sunxi so the prototype
> needs to go somewhere under include/.  It can go in include/configs/sunxi
> -common.h with #ifndef __ASSEMBLY__ around it -- or as long as it's limited to
> one init func per driver, maybe we could just put it in include/nand.h.

Hm, none of these solutions seem ideal.

Maybe we could define a generic void nand_controller_init(void)
prototype so that we don't need to add new xxx_nand_init() functions for
platforms needing this 2 steps initialization (platform specific pinmux
+ clocks config before NAND controller initialization).

Otherwise, I think I'll go for the 2nd solution (defining
sunxi_nand_init() in include/nand.h).

Let me know what you prefer.

Thanks,

Boris


-- 
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com