linux-kernel - Re: [PATCH 1/1] [MTD/NAND]: Add Blackfin BF52x on-chip NAND Flash controller driver support in bf5xx

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Message-ID: <386072610711230625k23b68e49q6090b7eb27c2c039@mail.gmail.com>
Date:	Fri, 23 Nov 2007 22:25:29 +0800
From:	"Bryan Wu" <cooloney.lkml@...il.com>
To:	"David Woodhouse" <dwmw2@...radead.org>
Cc:	"Bryan Wu" <bryan.wu@...log.com>, linux-mtd@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	uclinux-dist-devel@...ckfin.uclinux.org,
	"Michael Hennerich" <michael.hennerich@...log.com>
Subject: Re: [PATCH 1/1] [MTD/NAND]: Add Blackfin BF52x on-chip NAND Flash controller driver support in bf5xx_nand driver

On Nov 23, 2007 6:19 PM, David Woodhouse <dwmw2@...radead.org> wrote:
>
> On Fri, 2007-11-23 at 18:14 +0800, Bryan Wu wrote:
> >
> > +#ifdef CONFIG_BF54x
> >         /* Setup DMAC1 channel mux for NFC which shared with SDH */
> >         val = bfin_read_DMAC1_PERIMUX();
> >         val &= 0xFFFE;
> >         bfin_write_DMAC1_PERIMUX(val);
> >         SSYNC();
> > -
> > +#endif
>
> You can't build a multiplatform kernel which runs on BF52x and BF54x?

There are some hardware difference between BF52x and BF54x. We have to do this.

> And want to make it harder to do so in future?
>
Any idea to make it easier? providing a specific hardware init hook
function from each platform board files?

Regards,
-Bryan

> --
> dwmw2
>
>
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