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path: root/arch/sparc/kernel/of_device_64.c
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Diffstat (limited to 'arch/sparc/kernel/of_device_64.c')
-rw-r--r--arch/sparc/kernel/of_device_64.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/arch/sparc/kernel/of_device_64.c b/arch/sparc/kernel/of_device_64.c
index 881947e59e9..0a6f2d1798d 100644
--- a/arch/sparc/kernel/of_device_64.c
+++ b/arch/sparc/kernel/of_device_64.c
@@ -104,9 +104,19 @@ static int of_bus_pci_map(u32 *addr, const u32 *range,
int i;
/* Check address type match */
- if ((addr[0] ^ range[0]) & 0x03000000)
- return -EINVAL;
+ if (!((addr[0] ^ range[0]) & 0x03000000))
+ goto type_match;
+
+ /* Special exception, we can map a 64-bit address into
+ * a 32-bit range.
+ */
+ if ((addr[0] & 0x03000000) == 0x03000000 &&
+ (range[0] & 0x03000000) == 0x02000000)
+ goto type_match;
+
+ return -EINVAL;
+type_match:
if (of_out_of_range(addr + 1, range + 1, range + na + pna,
na - 1, ns))
return -EINVAL;