summaryrefslogtreecommitdiff
path: root/drivers/bcma/main.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/bcma/main.c')
-rw-r--r--drivers/bcma/main.c79
1 files changed, 77 insertions, 2 deletions
diff --git a/drivers/bcma/main.c b/drivers/bcma/main.c
index 1000955ce09d..534e1337766d 100644
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -11,6 +11,7 @@
#include <linux/bcma/bcma.h>
#include <linux/slab.h>
#include <linux/of_address.h>
+#include <linux/of_irq.h>
MODULE_DESCRIPTION("Broadcom's specific AMBA driver");
MODULE_LICENSE("GPL");
@@ -153,6 +154,46 @@ static struct device_node *bcma_of_find_child_device(struct platform_device *par
return NULL;
}
+static int bcma_of_irq_parse(struct platform_device *parent,
+ struct bcma_device *core,
+ struct of_phandle_args *out_irq, int num)
+{
+ __be32 laddr[1];
+ int rc;
+
+ if (core->dev.of_node) {
+ rc = of_irq_parse_one(core->dev.of_node, num, out_irq);
+ if (!rc)
+ return rc;
+ }
+
+ out_irq->np = parent->dev.of_node;
+ out_irq->args_count = 1;
+ out_irq->args[0] = num;
+
+ laddr[0] = cpu_to_be32(core->addr);
+ return of_irq_parse_raw(laddr, out_irq);
+}
+
+static unsigned int bcma_of_get_irq(struct platform_device *parent,
+ struct bcma_device *core, int num)
+{
+ struct of_phandle_args out_irq;
+ int ret;
+
+ if (!parent || !parent->dev.of_node)
+ return 0;
+
+ ret = bcma_of_irq_parse(parent, core, &out_irq, num);
+ if (ret) {
+ bcma_debug(core->bus, "bcma_of_get_irq() failed with rc=%d\n",
+ ret);
+ return 0;
+ }
+
+ return irq_create_of_mapping(&out_irq);
+}
+
static void bcma_of_fill_device(struct platform_device *parent,
struct bcma_device *core)
{
@@ -161,18 +202,47 @@ static void bcma_of_fill_device(struct platform_device *parent,
node = bcma_of_find_child_device(parent, core);
if (node)
core->dev.of_node = node;
+
+ core->irq = bcma_of_get_irq(parent, core, 0);
}
#else
static void bcma_of_fill_device(struct platform_device *parent,
struct bcma_device *core)
{
}
+static inline unsigned int bcma_of_get_irq(struct platform_device *parent,
+ struct bcma_device *core, int num)
+{
+ return 0;
+}
#endif /* CONFIG_OF */
-static void bcma_register_core(struct bcma_bus *bus, struct bcma_device *core)
+unsigned int bcma_core_irq(struct bcma_device *core, int num)
{
- int err;
+ struct bcma_bus *bus = core->bus;
+ unsigned int mips_irq;
+
+ switch (bus->hosttype) {
+ case BCMA_HOSTTYPE_PCI:
+ return bus->host_pci->irq;
+ case BCMA_HOSTTYPE_SOC:
+ if (bus->drv_mips.core && num == 0) {
+ mips_irq = bcma_core_mips_irq(core);
+ return mips_irq <= 4 ? mips_irq + 2 : 0;
+ }
+ if (bus->host_pdev)
+ return bcma_of_get_irq(bus->host_pdev, core, num);
+ return 0;
+ case BCMA_HOSTTYPE_SDIO:
+ return 0;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(bcma_core_irq);
+
+void bcma_prepare_core(struct bcma_bus *bus, struct bcma_device *core)
+{
core->dev.release = bcma_release_core_dev;
core->dev.bus = &bcma_bus_type;
dev_set_name(&core->dev, "bcma%d:%d", bus->num, core->core_index);
@@ -196,6 +266,11 @@ static void bcma_register_core(struct bcma_bus *bus, struct bcma_device *core)
case BCMA_HOSTTYPE_SDIO:
break;
}
+}
+
+static void bcma_register_core(struct bcma_bus *bus, struct bcma_device *core)
+{
+ int err;
err = device_register(&core->dev);
if (err) {