dm646x: pass board revision info to kernel

add a function in board file to pass board revision
info to kernel. Revision number 0 and 1 are passed in
case of DM6467 and DM6467T respectively.

Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
diff --git a/include/configs/davinci_dm6467Tevm.h b/include/configs/davinci_dm6467Tevm.h
index c507045..f7c994e 100644
--- a/include/configs/davinci_dm6467Tevm.h
+++ b/include/configs/davinci_dm6467Tevm.h
@@ -22,6 +22,7 @@
 
 /* Spectrum Digital TMS320DM6467T EVM board */
 #define DAVINCI_DM6467EVM
+#define DAVINCI_DM6467TEVM
 #define CONFIG_SYS_USE_NAND
 #define CONFIG_SYS_NAND_SMALLPAGE
 
@@ -64,6 +65,7 @@
 #define CONFIG_SETUP_MEMORY_TAGS
 #define CONFIG_SYS_BARGSIZE		1024		/* Bootarg Size */
 #define CONFIG_SYS_LOAD_ADDR		0x80700000	/* kernel address */
+#define CONFIG_REVISION_TAG
 
 /* Serial Driver info */
 #define CONFIG_SYS_NS16550