arc: use unflatten_and_copy_device_tree

Use the common unflatten_and_copy_device_tree to copy the built-in FDT
out of init section.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Grant Likely <grant.likely@linaro.org>

diff --git a/arch/arc/include/asm/mach_desc.h b/arch/arc/include/asm/mach_desc.h
index 9998dc8..d3e9c0a 100644 (file)
--- a/arch/arc/include/asm/mach_desc.h
+++ b/arch/arc/include/asm/mach_desc.h
@@ -82,6 +82,5 @@ __attribute__((__section__(".arch.info.init"))) = {   \
 };
 
 extern struct machine_desc *setup_machine_fdt(void *dt);
-extern void __init copy_devtree(void);
 
 #endif

diff --git a/arch/arc/kernel/devtree.c b/arch/arc/kernel/devtree.c
index 2340af0..eeb613a 100644 (file)
--- a/arch/arc/kernel/devtree.c
+++ b/arch/arc/kernel/devtree.c
@@ -100,18 +100,3 @@ struct machine_desc * __init setup_machine_fdt(void *dt)
 
        return mdesc_best;
 }
-
-/*
- * Copy the flattened DT out of .init since unflattening doesn't copy strings
- * and the normal DT APIs refs them from orig flat DT
- */
-void __init copy_devtree(void)
-{
-       void *alloc = early_init_dt_alloc_memory_arch(
-                       be32_to_cpu(initial_boot_params->totalsize), 64);
-       if (alloc) {
-               memcpy(alloc, initial_boot_params,
-                               be32_to_cpu(initial_boot_params->totalsize));
-               initial_boot_params = alloc;
-       }
-}

diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index 2c68bc7..710bf89 100644 (file)
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -346,8 +346,7 @@ void __init setup_arch(char **cmdline_p)
        setup_arch_memory();
 
        /* copy flat DT out of .init and then unflatten it */
-       copy_devtree();
-       unflatten_device_tree();
+       unflatten_and_copy_device_tree();
 
        /* Can be issue if someone passes cmd line arg "ro"
         * But that is unlikely so keeping it as it is