c6x: use common built-in dtb support

Using the common build support for built-in dtb files just requires
adding a .dtb.o target to obj-y.

The dtb now needs to be copied when unflattened because an init section
is used now.

Cc: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <jacquiot.aurelien@gmail.com>
Cc: linux-c6x-dev@linux-c6x.org
Signed-off-by: Rob Herring <robh@kernel.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/c6x/kernel/setup.c b/arch/c6x/kernel/setup.c
index 786e36e2f61d..509c5f086496 100644
--- a/arch/c6x/kernel/setup.c
+++ b/arch/c6x/kernel/setup.c
@@ -270,7 +270,7 @@ int __init c6x_add_memory(phys_addr_t start, unsigned long size)
 notrace void __init machine_init(unsigned long dt_ptr)
 {
         void *dtb = __va(dt_ptr);
-        void *fdt = _fdt_start;
+        void *fdt = __dtb_start;
 
         /* interrupts must be masked */
         set_creg(IER, 2);
@@ -363,7 +363,7 @@ void __init setup_arch(char **cmdline_p)
                                          memory_end >> PAGE_SHIFT);
         memblock_reserve(memory_start, bootmap_size);
 
-        unflatten_device_tree();
+        unflatten_and_copy_device_tree();
 
         c6x_cache_init();