[PATCH v2 1/7] sata-imx: i.MX53, use the internal 120MHz clock by default

[Eric Bénard]

Hi Sascha,

Le Mon, 10 Mar 2014 08:09:57 +0100,
Sascha Hauer <s.hauer at pengutronix.de> a écrit :

> On Fri, Mar 07, 2014 at 11:39:57AM +0100, Eric Bénard wrote:
> > this allows SATA to work on i.MX53 QSB-R :
> > barebox at Freescale i.MX53 Quick Start-R Board:/ ata0.probe=1
> > imx-sata 10000000.sata: port 0: SATA link ok
> > imx-sata 10000000.sata: port 0: Spinning up device...
> > imx-sata 10000000.sata: port 0: ok.
> > ata0: registered /dev/ata0
> > 
> > before this fix the log was :
> > barebox at Freescale i.MX53 Quick Start-R Board:/ ata0.probe=1
> > imx-sata 10000000.sata: port 0: SATA link timeout
> > set parameter: Connection timed out
> > 
> > Signed-off-by: Eric Bénard <eric at eukrea.com>
> > ---
> >  drivers/ata/sata-imx.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/ata/sata-imx.c b/drivers/ata/sata-imx.c
> > index b7bd110..450cf4f 100644
> > --- a/drivers/ata/sata-imx.c
> > +++ b/drivers/ata/sata-imx.c
> > @@ -59,7 +59,7 @@ static int imx53_sata_init(struct imx_ahci *imx_ahci)
> >  	 */
> >  	val = readl(base + 0x180c);
> >  	val &= (0x3 << 1);
> > -	val |= (0x1 << 1);
> > +	val |= (0x2 << 1);
> >  	writel(val, base + 0x180c);
> 
> I haven't applied this yet. Have you tested this on the regular (not -R)
> variant of the board? If not I'd like to do that before applying.

I can try to test on an original QSB (with Dialog PMIC) but I don't see
why that would change as the difference between QSB and QSB-R is the
PMIC (Dialog to Freescale) and here we only change the clock source of
the SATA which has nothing to see with the PMIC.

Eric