[U-Boot] [PATCH 2/4] spi: cadence_qspi: Fix fdt read of spi-max-frequency

[Chin Liang See]

Hi,

On Tue, 2015-09-08 at 13:19 +0200, marex at denx.de wrote:
> On Tuesday, September 08, 2015 at 03:18:24 AM, Chin Liang See wrote:
> > Fix the fdt read for spi-max-frequency as it's contained
> > in the child node. Current state of code is always
> > returning default value.
> > 
> > Signed-off-by: Chin Liang See <clsee at altera.com>
> > Cc: Dinh Nguyen <dinguyen at opensource.altera.com>
> > Cc: Dinh Nguyen <dinh.linux at gmail.com>
> > Cc: Marek Vasut <marex at denx.de>
> > Cc: Stefan Roese <sr at denx.de>
> > Cc: Vikas Manocha <vikas.manocha at st.com>
> > Cc: Jagannadh Teki <jteki at openedev.com>
> > Cc: Pavel Machek <pavel at denx.de>
> > ---
> > Changes for v2
> > - Add unsigned casting for plat->max_hz
> > ---
> >  drivers/spi/cadence_qspi.c |    8 ++++----
> >  1 files changed, 4 insertions(+), 4 deletions(-)
> > 
> > diff --git a/drivers/spi/cadence_qspi.c b/drivers/spi/cadence_qspi.c
> > index 23c88d5..8c0f7dd 100644
> > --- a/drivers/spi/cadence_qspi.c
> > +++ b/drivers/spi/cadence_qspi.c
> > @@ -296,10 +296,6 @@ static int cadence_spi_ofdata_to_platdata(struct
> > udevice *bus) plat->regbase = (void *)data[0];
> >  	plat->ahbbase = (void *)data[2];
> > 
> > -	/* Use 500KHz as a suitable default */
> > -	plat->max_hz = fdtdec_get_int(blob, node, "spi-max-frequency",
> > -				      500000);
> > -
> >  	/* All other paramters are embedded in the child node */
> >  	subnode = fdt_first_subnode(blob, node);
> >  	if (subnode < 0) {
> > @@ -307,6 +303,10 @@ static int cadence_spi_ofdata_to_platdata(struct
> > udevice *bus) return -ENODEV;
> >  	}
> > 
> > +	/* Use 500KHz as a suitable default */
> > +	plat->max_hz = (unsigned int)fdtdec_get_int(blob, subnode,
> > +						"spi-max-frequency", 500000);
> > +
> 
> fdt_getprop_u32() might be the right thing to do here :)

Cool, yup, I am using fdt_getprop_u32_default_node. But need additional
patch to enable this and more FDT related function in SPL

Thanks
Chin Liang

> 
> Best regards,
> Marek Vasut