of/flattree: Merge unflatten_device_tree

Merge common code between PowerPC and MicroBlaze

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Tested-by: Michal Simek <monstr@monstr.eu>

3 files changed, 0 insertions, 100 deletions

diff --git a/arch/microblaze/include/asm/prom.h b/arch/microblaze/include/asm/prom.h
index ef3ec1d6ceb3..07d1063f9aae 100644
--- a/arch/microblaze/include/asm/prom.h
+++ b/arch/microblaze/include/asm/prom.h
@@ -37,7 +37,6 @@ extern struct device_node *of_chosen;
 
 #define HAVE_ARCH_DEVTREE_FIXUPS
 
-extern struct device_node *allnodes;    /* temporary while merging */
 extern rwlock_t devtree_lock;   /* temporary while merging */
 
 /* For updating the device tree at runtime */
diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
index 021770abfbd7..901d538c15ef 100644
--- a/arch/microblaze/kernel/prom.c
+++ b/arch/microblaze/kernel/prom.c
@@ -50,55 +50,6 @@ typedef u32 cell_t;
 /* export that to outside world */
 struct device_node *of_chosen;
 
-/**
- * unflattens the device-tree passed by the firmware, creating the
- * tree of struct device_node. It also fills the "name" and "type"
- * pointers of the nodes so the normal device-tree walking functions
- * can be used (this used to be done by finish_device_tree)
- */
-void __init unflatten_device_tree(void)
-{
-        unsigned long start, mem, size;
-        struct device_node **allnextp = &allnodes;
-
-        pr_debug(" -> unflatten_device_tree()\n");
-
-        /* First pass, scan for size */
-        start = ((unsigned long)initial_boot_params) +
-                initial_boot_params->off_dt_struct;
-        size = unflatten_dt_node(0, &start, NULL, NULL, 0);
-        size = (size | 3) + 1;
-
-        pr_debug("  size is %lx, allocating...\n", size);
-
-        /* Allocate memory for the expanded device tree */
-        mem = lmb_alloc(size + 4, __alignof__(struct device_node));
-        mem = (unsigned long) __va(mem);
-
-        ((u32 *)mem)[size / 4] = 0xdeadbeef;
-
-        pr_debug("  unflattening %lx...\n", mem);
-
-        /* Second pass, do actual unflattening */
-        start = ((unsigned long)initial_boot_params) +
-                initial_boot_params->off_dt_struct;
-        unflatten_dt_node(mem, &start, NULL, &allnextp, 0);
-        if (*((u32 *)start) != OF_DT_END)
-                printk(KERN_WARNING "Weird tag at end of tree: %08x\n",
-                        *((u32 *)start));
-        if (((u32 *)mem)[size / 4] != 0xdeadbeef)
-                printk(KERN_WARNING "End of tree marker overwritten: %08x\n",
-                        ((u32 *)mem)[size / 4]);
-        *allnextp = NULL;
-
-        /* Get pointer to OF "/chosen" node for use everywhere */
-        of_chosen = of_find_node_by_path("/chosen");
-        if (of_chosen == NULL)
-                of_chosen = of_find_node_by_path("/chosen@0");
-
-        pr_debug(" <- unflatten_device_tree()\n");
-}
-
 #define early_init_dt_scan_drconf_memory(node) 0
 
 static int __init early_init_dt_scan_cpus(unsigned long node,
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index a102a0a33ed1..1280f3484ad3 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -73,8 +73,6 @@ unsigned long tce_alloc_start, tce_alloc_end;
 
 typedef u32 cell_t;
 
-extern struct device_node *allnodes;    /* temporary while merging */
-
 extern rwlock_t devtree_lock;   /* temporary while merging */
 
 /* export that to outside world */
@@ -119,54 +117,6 @@ static void __init move_device_tree(void)
         DBG("<- move_device_tree\n");
 }
 
-/**
- * unflattens the device-tree passed by the firmware, creating the
- * tree of struct device_node. It also fills the "name" and "type"
- * pointers of the nodes so the normal device-tree walking functions
- * can be used (this used to be done by finish_device_tree)
- */
-void __init unflatten_device_tree(void)
-{
-        unsigned long start, mem, size;
-        struct device_node **allnextp = &allnodes;
-
-        DBG(" -> unflatten_device_tree()\n");
-
-        /* First pass, scan for size */
-        start = ((unsigned long)initial_boot_params) +
-                initial_boot_params->off_dt_struct;
-        size = unflatten_dt_node(0, &start, NULL, NULL, 0);
-        size = (size | 3) + 1;
-
-        DBG("  size is %lx, allocating...\n", size);
-
-        /* Allocate memory for the expanded device tree */
-        mem = lmb_alloc(size + 4, __alignof__(struct device_node));
-        mem = (unsigned long) __va(mem);
-
-        ((u32 *)mem)[size / 4] = 0xdeadbeef;
-
-        DBG("  unflattening %lx...\n", mem);
-
-        /* Second pass, do actual unflattening */
-        start = ((unsigned long)initial_boot_params) +
-                initial_boot_params->off_dt_struct;
-        unflatten_dt_node(mem, &start, NULL, &allnextp, 0);
-        if (*((u32 *)start) != OF_DT_END)
-                printk(KERN_WARNING "Weird tag at end of tree: %08x\n", *((u32 *)start));
-        if (((u32 *)mem)[size / 4] != 0xdeadbeef)
-                printk(KERN_WARNING "End of tree marker overwritten: %08x\n",
-                       ((u32 *)mem)[size / 4] );
-        *allnextp = NULL;
-
-        /* Get pointer to OF "/chosen" node for use everywhere */
-        of_chosen = of_find_node_by_path("/chosen");
-        if (of_chosen == NULL)
-                of_chosen = of_find_node_by_path("/chosen@0");
-
-        DBG(" <- unflatten_device_tree()\n");
-}
-
 /*
  * ibm,pa-features is a per-cpu property that contains a string of
  * attribute descriptors, each of which has a 2 byte header plus up