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authorHauke Mehrtens <hauke@hauke-m.de>2012-01-31 00:03:31 +0100
committerJohn W. Linville <linville@tuxdriver.com>2012-02-06 14:50:39 -0500
commit5f2d6171e1e70584b9819771443485750453fd16 (patch)
tree29a8f4dfc08d8cef4c5f3b13e0a78c52b61abe1e
parent268bd858df5052f97722b123e990119c89171fd7 (diff)
bcma: add the core unit number
Some SoCs have two pcie or gmac cores and we need to know the number of the specific core on the bus. This is the case for the BCM4706. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/bcma/scan.c14
-rw-r--r--include/linux/bcma/bcma.h1
2 files changed, 15 insertions, 0 deletions
diff --git a/drivers/bcma/scan.c b/drivers/bcma/scan.c
index cad99485768..e513aa83ec2 100644
--- a/drivers/bcma/scan.c
+++ b/drivers/bcma/scan.c
@@ -212,6 +212,17 @@ static struct bcma_device *bcma_find_core_by_index(struct bcma_bus *bus,
return NULL;
}
+static struct bcma_device *bcma_find_core_reverse(struct bcma_bus *bus, u16 coreid)
+{
+ struct bcma_device *core;
+
+ list_for_each_entry_reverse(core, &bus->cores, list) {
+ if (core->id.id == coreid)
+ return core;
+ }
+ return NULL;
+}
+
static int bcma_get_next_core(struct bcma_bus *bus, u32 __iomem **eromptr,
struct bcma_device_id *match, int core_num,
struct bcma_device *core)
@@ -392,6 +403,7 @@ int bcma_bus_scan(struct bcma_bus *bus)
bcma_scan_switch_core(bus, erombase);
while (eromptr < eromend) {
+ struct bcma_device *other_core;
struct bcma_device *core = kzalloc(sizeof(*core), GFP_KERNEL);
if (!core)
return -ENOMEM;
@@ -411,6 +423,8 @@ int bcma_bus_scan(struct bcma_bus *bus)
core->core_index = core_num++;
bus->nr_cores++;
+ other_core = bcma_find_core_reverse(bus, core->id.id);
+ core->core_unit = (other_core == NULL) ? 0 : other_core->core_unit + 1;
pr_info("Core %d found: %s "
"(manuf 0x%03X, id 0x%03X, rev 0x%02X, class 0x%X)\n",
diff --git a/include/linux/bcma/bcma.h b/include/linux/bcma/bcma.h
index 83c209f3949..024a6e2a908 100644
--- a/include/linux/bcma/bcma.h
+++ b/include/linux/bcma/bcma.h
@@ -136,6 +136,7 @@ struct bcma_device {
bool dev_registered;
u8 core_index;
+ u8 core_unit;
u32 addr;
u32 wrap;