ARM: 6421/1: amba-pl011: add missing ST specific registers

The ST Micro derivates have several extra interesting registers
that we may soon use for something interesting so may just as
well define them in the header.

Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

include/linux/amba/serial.h

@@ -32,7 +32,9 @@
 #define UART01x_RSR		0x04	/* Receive status register (Read). */
 #define UART01x_ECR		0x04	/* Error clear register (Write). */
 #define UART010_LCRH		0x08	/* Line control register, high byte. */
+#define ST_UART011_DMAWM	0x08    /* DMA watermark configure register. */
 #define UART010_LCRM		0x0C	/* Line control register, middle byte. */
+#define ST_UART011_TIMEOUT	0x0C    /* Timeout period register. */
 #define UART010_LCRL		0x10	/* Line control register, low byte. */
 #define UART010_CR		0x14	/* Control register. */
 #define UART01x_FR		0x18	/* Flag register (Read only). */
@@ -51,6 +53,15 @@
 #define UART011_MIS		0x40	/* Masked interrupt status. */
 #define UART011_ICR		0x44	/* Interrupt clear register. */
 #define UART011_DMACR		0x48	/* DMA control register. */
+#define ST_UART011_XFCR		0x50	/* XON/XOFF control register. */
+#define ST_UART011_XON1		0x54	/* XON1 register. */
+#define ST_UART011_XON2		0x58	/* XON2 register. */
+#define ST_UART011_XOFF1	0x5C	/* XON1 register. */
+#define ST_UART011_XOFF2	0x60	/* XON2 register. */
+#define ST_UART011_ITCR		0x80	/* Integration test control register. */
+#define ST_UART011_ITIP		0x84	/* Integration test input register. */
+#define ST_UART011_ABCR		0x100	/* Autobaud control register. */
+#define ST_UART011_ABIMSC	0x15C	/* Autobaud interrupt mask/clear register. */
 
 #define UART011_DR_OE		(1 << 11)
 #define UART011_DR_BE		(1 << 10)