MIPS: TXx9: Add RBTX4939 board support

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

 create mode 100644 arch/mips/txx9/rbtx4939/Makefile
 create mode 100644 arch/mips/txx9/rbtx4939/irq.c
 create mode 100644 arch/mips/txx9/rbtx4939/prom.c
 create mode 100644 arch/mips/txx9/rbtx4939/setup.c
 create mode 100644 include/asm-mips/txx9/rbtx4939.h
diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
index 1ea0655..7a05c34 100644
--- a/arch/mips/txx9/generic/setup.c
+++ b/arch/mips/txx9/generic/setup.c
@@ -372,6 +372,11 @@
 		txx9_board_vec = &rbtx4938_vec;
 		break;
 #endif
+#ifdef CONFIG_TOSHIBA_RBTX4939
+	case 0x4939:
+		txx9_board_vec = &rbtx4939_vec;
+		break;
+#endif
 	}
 #endif
 }