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sparc: Implement of_iomap(). 

Grab the pre-computed resource and map using of_ioremap().

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2011-03-18 15:47:26 -07:00
parent 930952af15
commit 9889376ab9
1 changed files with 14 additions and 0 deletions
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14
arch/sparc/kernel/of_device_common.c
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@ -35,6 +35,20 @@ int of_address_to_resource(struct device_node *node, int index,
} }
EXPORT_SYMBOL_GPL(of_address_to_resource); EXPORT_SYMBOL_GPL(of_address_to_resource);
void __iomem *of_iomap(struct device_node *node, int index)
{
struct platform_device *op = of_find_device_by_node(node);
struct resource *r;
if (!op || index >= op->num_resources)
return NULL;
r = &op->archdata.resource[index];
return of_ioremap(r, 0, resource_size(r), (char *) r->name);
}
EXPORT_SYMBOL(of_iomap);
/* Take the archdata values for IOMMU, STC, and HOSTDATA found in /* Take the archdata values for IOMMU, STC, and HOSTDATA found in
* BUS and propagate to all child platform_device objects. * BUS and propagate to all child platform_device objects.
*/ */