--- zzzz-none-000/linux-3.10.107/include/linux/serial_core.h	2017-06-27 09:49:32.000000000 +0000
+++ vr9-7490-729/linux-3.10.107/include/linux/serial_core.h	2021-11-10 11:53:56.000000000 +0000
@@ -122,7 +122,7 @@
 	void			(*handle_break)(struct uart_port *);
 	unsigned int		irq;			/* irq number */
 	unsigned long		irqflags;		/* irq flags  */
-	unsigned int		uartclk;		/* base uart clock */
+	unsigned long		uartclk;		/* base uart clock */
 	unsigned int		fifosize;		/* tx fifo size */
 	unsigned char		x_char;			/* xon/xoff char */
 	unsigned char		regshift;		/* reg offset shift */
@@ -135,6 +135,7 @@
 #define UPIO_MEM32		(3)
 #define UPIO_AU			(4)			/* Au1x00 and RT288x type IO */
 #define UPIO_TSI		(5)			/* Tsi108/109 type IO */
+#define UPIO_MEM16		(6)
 
 	unsigned int		read_status_mask;	/* driver specific */
 	unsigned int		ignore_status_mask;	/* driver specific */