* Roger Quadros <rogerq@xxxxxx> [170508 03:44]:
> Hi Tony,
>
> On 06/05/17 01:37, Tony Lindgren wrote:
> > The width needs to be configured in bytes with 1 meaning 8-bit
> > access and 2 meaning 16-bit access.
>
> As per the TRM, for GPMC_CONFIG1.DEVICESIZE
> 0 means 8-bit
> 1 means 16-bit
>
> >
> > Cc: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
> > Cc: Roger Quadros <rogerq@xxxxxx>
> > Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
> > ---
> > drivers/memory/omap-gpmc.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/memory/omap-gpmc.c b/drivers/memory/omap-gpmc.c
> > --- a/drivers/memory/omap-gpmc.c
> > +++ b/drivers/memory/omap-gpmc.c
> > @@ -513,7 +513,7 @@ static void gpmc_cs_show_timings(int cs, const char *desc)
> > pr_info("gpmc cs%i access configuration:\n", cs);
> > GPMC_GET_RAW_BOOL(GPMC_CS_CONFIG1, 4, 4, "time-para-granularity");
> > GPMC_GET_RAW(GPMC_CS_CONFIG1, 8, 9, "mux-add-data");
> > - GPMC_GET_RAW_MAX(GPMC_CS_CONFIG1, 12, 13,
> > + GPMC_GET_RAW_SHIFT_MAX(GPMC_CS_CONFIG1, 12, 13, 1,
> > GPMC_CONFIG1_DEVICESIZE_MAX, "device-width");
>
> setting shift 1 means the value will be multiplied by 2
> so this will read 0 for 8-bit and 2 for 16-bit.
>
> Is this what we want?
Yeah we already have debug output that is supposed to be usable
for configuring a new device based on debug output of the bootloader
timings. And the configured parameters use bytes for device-width.
> I'd still prefer the old way of showing RAW values than interpreted ones.
We have that too in the debug output as the raw values of
all the GPMC_CS_CONFIG registers.
Regards,
Tony
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