diff options
| author | David S. Miller <davem@davemloft.net> | 2008-08-27 04:22:37 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-08-29 02:15:20 -0700 |
| commit | 5059625ed8862e897760b86effff0f8a35989c0d (patch) | |
| tree | 1beed269b55a0848ca9d3a5837aaffef7d6e07c2 /arch/sparc64 | |
| parent | f8e4d32cb5153a9d6a8e8864e357dad1349f3b85 (diff) | |
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: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64')
| -rw-r--r-- | arch/sparc64/kernel/of_device.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/sparc64/kernel/of_device.c b/arch/sparc64/kernel/of_device.c index a30f2af0bf2..b22475f85a5 100644 --- a/arch/sparc64/kernel/of_device.c +++ b/arch/sparc64/kernel/of_device.c @@ -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); |