diff --git a/arch/xtensa/include/uapi/asm/ioctls.h b/arch/xtensa/include/uapi/asm/ioctls.h
index a47909f0c34b4892848d06b9f55ebe4a37563d90..518954e74e6d5e49e77c14a6eecb104319019edd 100644
--- a/arch/xtensa/include/uapi/asm/ioctls.h
+++ b/arch/xtensa/include/uapi/asm/ioctls.h
@@ -95,6 +95,8 @@
 #define TCSETS2		_IOW('T', 43, struct termios2)
 #define TCSETSW2	_IOW('T', 44, struct termios2)
 #define TCSETSF2	_IOW('T', 45, struct termios2)
+#define TIOCGRS485	_IOR('T', 46, struct serial_rs485)
+#define TIOCSRS485	_IOWR('T', 47, struct serial_rs485)
 #define TIOCGPTN	_IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
 #define TIOCSPTLCK	_IOW('T',0x31, int)  /* Lock/unlock Pty */
 #define TIOCGDEV	_IOR('T',0x32, unsigned int) /* Get primary device node of /dev/console */