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authorJean-Christophe DUBOIS <jcd@tribudubois.net>2007-07-20 21:39:25 +0200
committerArnd Bergmann <arnd@klappe.arndb.de>2007-07-20 21:41:41 +0200
commitb86ce01c7700cfc74665799355a46dcadf920ebd (patch)
treefb7e196c413aa3902b398135daff2b8486aa58ac
parent827e3648dc2c31e01db7cd2e4498061cf78a97a9 (diff)
[CELL] allow linux to map Cell regs on legacy SLOF tree.
The platforms missing the "cpus" property in the "be" node are mono-Cell platforms such as CAB or Getaway. Therefore it is possible to assume that if there is no "cpus" properties under the "be" node then we can safely return the "device node" without more checking. This is a bit hacky but ... it allows it to work on these platforms. Signed-off-by: Jean-Christophe DUBOIS <jcd@tribudubois.net> Acked-by: Christian Krafft <krafft@de.ibm.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
-rw-r--r--arch/powerpc/platforms/cell/cbe_regs.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/cell/cbe_regs.c b/arch/powerpc/platforms/cell/cbe_regs.c
index 12c9674b4b1..c8f7f000742 100644
--- a/arch/powerpc/platforms/cell/cbe_regs.c
+++ b/arch/powerpc/platforms/cell/cbe_regs.c
@@ -174,6 +174,13 @@ static struct device_node *cbe_get_be_node(int cpu_id)
cpu_handle = of_get_property(np, "cpus", &len);
+ /*
+ * the CAB SLOF tree is non compliant, so we just assume
+ * there is only one node
+ */
+ if (WARN_ON_ONCE(!cpu_handle))
+ return np;
+
for (i=0; i<len; i++)
if (of_find_node_by_phandle(cpu_handle[i]) == of_get_cpu_node(cpu_id, NULL))
return np;