On Aug 4, 2011, at 5:36 AM, David Brown wrote: > Add uncached mappings from devicetree nodes similar to regular io > mappings. > > SPARC is coherent, so there this call is the same as regular of_iomap. > > Cc: David Miller <[email protected]> > Signed-off-by: David Brown <[email protected]> > --- > v2 - Add implementation for SPARC > > drivers/of/address.c | 19 +++++++++++++++++++ > include/linux/of_address.h | 10 ++++++++++ > 2 files changed, 29 insertions(+), 0 deletions(-) > > diff --git a/drivers/of/address.c b/drivers/of/address.c > index 72c33fb..9bee7f8 100644 > --- a/drivers/of/address.c > +++ b/drivers/of/address.c > @@ -613,3 +613,22 @@ void __iomem *of_iomap(struct device_node *np, int index) > return ioremap(res.start, resource_size(&res)); > } > EXPORT_SYMBOL(of_iomap); > + > +/** > + * of_iomap_nocache - Maps the memory mapped IO for a given > + * device_node, using ioremap_nocache. > + * @device: the device whose io range will be mapped > + * @index: index of the io range > + * > + * Returns a pointer to the mapped memory > + */ > +void __iomem *of_iomap_nocache(struct device_node *np, int index) > +{ > + struct resource res; > + > + if (of_address_to_resource(np, index, &res)) > + return NULL; > + > + return ioremap_nocache(res.start, 1 + res.end - res.start); > +} > +EXPORT_SYMBOL(of_iomap_nocache); > diff --git a/include/linux/of_address.h b/include/linux/of_address.h > index 3118623..0e4734b 100644 > --- a/include/linux/of_address.h > +++ b/include/linux/of_address.h > @@ -13,6 +13,16 @@ extern struct device_node > *of_find_matching_node_by_address( > u64 base_address); > extern void __iomem *of_iomap(struct device_node *device, int index); > > +#ifndef SPARC > +extern void __iomem *of_iomap_nocache(struct device_node *device, int index); > +#else > +static inline void __iomem *of_iomap_nocache(struct device_node *device, > + int index) > +{ > + return of_iomap(device, index); > +} > +#endif > +
What about adding an of_iomap_prot() to match ioremap_prot(). - k-- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
