Commit 5059625e authored by David S. Miller's avatar David S. Miller

sparc: Add OF archdata propagation helper.

Add a helper function that, given a bus of_device node, propagates
all iommu, stc, and host_controller values down to the child nodes.
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f8e4d32c
......@@ -30,6 +30,8 @@ struct of_device
extern void __iomem *of_ioremap(struct resource *res, unsigned long offset, unsigned long size, char *name);
extern void of_iounmap(struct resource *res, void __iomem *base, unsigned long size);
extern void of_propagate_archdata(struct of_device *bus);
/* This is just here during the transition */
#include <linux/of_platform.h>
......
......@@ -40,6 +40,28 @@ unsigned int irq_of_parse_and_map(struct device_node *node, int index)
}
EXPORT_SYMBOL(irq_of_parse_and_map);
/* Take the archdata values for IOMMU, STC, and HOSTDATA found in
* BUS and propagate to all child of_device objects.
*/
void of_propagate_archdata(struct of_device *bus)
{
struct dev_archdata *bus_sd = &bus->dev.archdata;
struct device_node *bus_dp = bus->node;
struct device_node *dp;
for (dp = bus_dp->child; dp; dp = dp->sibling) {
struct of_device *op = of_find_device_by_node(dp);
op->dev.archdata.iommu = bus_sd->iommu;
op->dev.archdata.stc = bus_sd->stc;
op->dev.archdata.host_controller = bus_sd->host_controller;
op->dev.archdata.numa_node = bus_sd->numa_node;
if (dp->child)
of_propagate_archdata(op);
}
}
#ifdef CONFIG_PCI
struct bus_type ebus_bus_type;
EXPORT_SYMBOL(ebus_bus_type);
......
......@@ -66,6 +66,28 @@ unsigned int irq_of_parse_and_map(struct device_node *node, int index)
}
EXPORT_SYMBOL(irq_of_parse_and_map);
/* Take the archdata values for IOMMU, STC, and HOSTDATA found in
* BUS and propagate to all child of_device objects.
*/
void of_propagate_archdata(struct of_device *bus)
{
struct dev_archdata *bus_sd = &bus->dev.archdata;
struct device_node *bus_dp = bus->node;
struct device_node *dp;
for (dp = bus_dp->child; dp; dp = dp->sibling) {
struct of_device *op = of_find_device_by_node(dp);
op->dev.archdata.iommu = bus_sd->iommu;
op->dev.archdata.stc = bus_sd->stc;
op->dev.archdata.host_controller = bus_sd->host_controller;
op->dev.archdata.numa_node = bus_sd->numa_node;
if (dp->child)
of_propagate_archdata(op);
}
}
#ifdef CONFIG_PCI
struct bus_type ebus_bus_type;
EXPORT_SYMBOL(ebus_bus_type);
......
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