[U-Boot] [PATCH] Davinci: Configurable NAND chip selects
Wolfgang Denk
wd at denx.de
Wed Nov 18 22:18:24 CET 2009
Dear Scott Wood,
In message <20091118202216.GA15517 at loki.buserror.net> you wrote:
> On Mon, Nov 16, 2009 at 05:49:55PM +0000, Nick Thompson wrote:
> > static void nand_davinci_enable_hwecc(struct mtd_info *mtd, int mode)
> > {
> > - int dummy;
> > + u_int32_t val;
> >
> > - dummy = emif_regs->NANDF1ECC;
> > + val = readl(&emif_regs->NANDF1ECC);
>
> "val =" can be omitted, which would keep it clear that it is a dummy read.
For a little more emphasis one can even write
(void)readl(&emif_regs->NANDF1ECC);
which really makes it clear that the return value is ignored
intentionally.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
The software required `Windows 95 or better', so I installed Linux.
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