of: push struct boot_param_header and defines into powerpc

Now powerpc is the only user of struct boot_param_header and FDT defines,
so they can be moved into the powerpc architecture code.

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@lists.ozlabs.org
Tested-by: Grant Likely <grant.likely@linaro.org>
Tested-by: Stephen Chivers <schivers@csc.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/arch/powerpc/include/asm/prom.h b/arch/powerpc/include/asm/prom.h
index d977b9b78696..74b79f07f041 100644
--- a/arch/powerpc/include/asm/prom.h
+++ b/arch/powerpc/include/asm/prom.h
@@ -26,6 +26,45 @@
 #include <linux/of_irq.h>
 #include <linux/platform_device.h>
 
+#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
+ *
+ * The dt struct contains the device tree structure, full pathes and
+ * property contents. The dt strings contain a separate block with just
+ * the strings for the property names, and is fully page aligned and
+ * self contained in a page, so that it can be kept around by the kernel,
+ * each property name appears only once in this page (cheap compression)
+ *
+ * the mem_rsvmap contains a map of reserved ranges of physical memory,
+ * passing it here instead of in the device-tree itself greatly simplifies
+ * the job of everybody. It's just a list of u64 pairs (base/size) that
+ * ends when size is 0
+ */
+struct boot_param_header {
+        __be32  magic;                  /* magic word OF_DT_HEADER */
+        __be32  totalsize;              /* total size of DT block */
+        __be32  off_dt_struct;          /* offset to structure */
+        __be32  off_dt_strings;         /* offset to strings */
+        __be32  off_mem_rsvmap;         /* offset to memory reserve map */
+        __be32  version;                /* format version */
+        __be32  last_comp_version;      /* last compatible version */
+        /* version 2 fields below */
+        __be32  boot_cpuid_phys;        /* Physical CPU id we're booting on */
+        /* version 3 fields below */
+        __be32  dt_strings_size;        /* size of the DT strings block */
+        /* version 17 fields below */
+        __be32  dt_struct_size;         /* size of the DT structure block */
+};
+
 /*
  * OF address retreival & translation
  */