arm/dt: Add dt machine definition

This patch adds a DT_MACHINE_START macro to use instead of
MACHINE_START when creating a machine_desc that supports using the
device tree.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

diff --git a/arch/arm/include/asm/mach/arch.h b/arch/arm/include/asm/mach/arch.h
index 3281fb4..217aa19 100644 (file)
--- a/arch/arm/include/asm/mach/arch.h
+++ b/arch/arm/include/asm/mach/arch.h
@@ -74,4 +74,11 @@ static const struct machine_desc __mach_desc_##_type \
 #define MACHINE_END                            \
 };
 
+#define DT_MACHINE_START(_name, _namestr)              \
+static const struct machine_desc __mach_desc_##_name   \
+ __used                                                        \
+ __attribute__((__section__(".arch.info.init"))) = {   \
+       .nr             = ~0,                           \
+       .name           = _namestr,
+
 #endif