arm: Enable generic board support

This enables generic board support so that ARM boards can define
CONFIG_SYS_GENERIC_BOARD.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/include/asm/u-boot.h b/arch/arm/include/asm/u-boot.h
index 2ba98bc..a33fefa 100644
--- a/arch/arm/include/asm/u-boot.h
+++ b/arch/arm/include/asm/u-boot.h
@@ -36,6 +36,12 @@
 #ifndef _U_BOOT_H_
 #define _U_BOOT_H_	1
 
+#ifdef CONFIG_SYS_GENERIC_BOARD
+/* Use the generic board which requires a unified bd_info */
+#include <asm-generic/u-boot.h>
+#else
+
+#ifndef __ASSEMBLY__
 typedef struct bd_info {
 	unsigned int	bi_baudrate;	/* serial console baudrate */
     ulong	        bi_arch_number;	/* unique id for this board */
@@ -49,6 +55,9 @@
 	ulong size;
     }			bi_dram[CONFIG_NR_DRAM_BANKS];
 } bd_t;
+#endif
+
+#endif /* !CONFIG_SYS_GENERIC_BOARD */
 
 /* For image.h:image_check_target_arch() */
 #define IH_ARCH_DEFAULT IH_ARCH_ARM