microblaze: Final support for statically linked DTB

If r7 is zero at kernel boot, or does not point to a valid DTB, then
we fall back to a DTB (assumed to be) linked statically in the kernel, instead
of blindly copying bogus cruft into the kernel DTB memory region

Signed-off-by: John Williams <john.williams@petalogix.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>

1 files changed, 13 insertions, 10 deletions

diff --git a/arch/microblaze/include/asm/prom.h b/arch/microblaze/include/asm/prom.h
index 20f7b3a926e8..37e6f305a68e 100644
--- a/arch/microblaze/include/asm/prom.h
+++ b/arch/microblaze/include/asm/prom.h
@@ -16,6 +16,18 @@
 #define _ASM_MICROBLAZE_PROM_H
 #ifdef __KERNEL__
 
+/* Definitions used by the flattened device tree */
+#define OF_DT_HEADER            0xd00dfeed /* marker */
+#define OF_DT_BEGIN_NODE        0x1 /* Start of node, full name */
+#define OF_DT_END_NODE          0x2 /* End node */
+#define OF_DT_PROP              0x3 /* Property: name off, size, content */
+#define OF_DT_NOP               0x4 /* nop */
+#define OF_DT_END               0x9
+
+#define OF_DT_VERSION           0x10
+
+#ifndef __ASSEMBLY__
+
 #include <linux/types.h>
 #include <linux/proc_fs.h>
 #include <linux/platform_device.h>
@@ -29,16 +41,6 @@
 #define of_prop_cmp(s1, s2)             strcmp((s1), (s2))
 #define of_node_cmp(s1, s2)             strcasecmp((s1), (s2))
 
-/* Definitions used by the flattened device tree */
-#define OF_DT_HEADER            0xd00dfeed /* marker */
-#define OF_DT_BEGIN_NODE        0x1 /* Start of node, full name */
-#define OF_DT_END_NODE          0x2 /* End node */
-#define OF_DT_PROP              0x3 /* Property: name off, size, content */
-#define OF_DT_NOP               0x4 /* nop */
-#define OF_DT_END               0x9
-
-#define OF_DT_VERSION           0x10
-
 /*
  * This is what gets passed to the kernel by prom_init or kexec
  *
@@ -309,5 +311,6 @@ extern void __iomem *of_iomap(struct device_node *device, int index);
  */
 #include <linux/of.h>
 
+#endif /* __ASSEMBLY__ */
 #endif /* __KERNEL__ */
 #endif /* _ASM_MICROBLAZE_PROM_H */