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

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

arch/sparc/include/asm/of_device.h

+2 −0
Original line number Diff line number Diff line
@@ -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>

arch/sparc/kernel/of_device.c

+22 −0
Original line number Diff line number Diff line
@@ -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);

arch/sparc64/kernel/of_device.c

+22 −0
Original line number Diff line number Diff line
@@ -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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