serial/ns16550: ns16550 has a different register layout on SOC_DA8XX

also fix NS16550_init() as we need 16x divider
Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@gmail.com>
Acked-by: Christian Riesch <christian.riesch@omicron.at>
Tested-by: Christian Riesch <christian.riesch@omicron.at>
Acked-by: Sughosh Ganu <urwithsughosh@gmail.com>
Tested-by: Sughosh Ganu <urwithsughosh@gmail.com>

drivers/serial/ns16550.c

@@ -52,7 +52,7 @@ void NS16550_init(NS16550_t com_port, int baud_divisor)
 	serial_out((baud_divisor >> 8) & 0xff, &com_port->dlm);
 	serial_out(UART_LCRVAL, &com_port->lcr);
 #if (defined(CONFIG_OMAP) && !defined(CONFIG_OMAP3_ZOOM2)) || \
-					defined(CONFIG_AM33XX)
+	defined(CONFIG_AM33XX) || defined(CONFIG_SOC_DA8XX)
 
 #if defined(CONFIG_APTIX)
 	/* /13 mode so Aptix 6MHz can hit 115200 */

include/ns16550.h

@@ -46,6 +46,14 @@ struct NS16550 {
 	UART_REG(lsr);		/* 5 */
 	UART_REG(msr);		/* 6 */
 	UART_REG(spr);		/* 7 */
+#ifdef CONFIG_SOC_DA8XX
+	UART_REG(reg8);		/* 8 */
+	UART_REG(reg9);		/* 9 */
+	UART_REG(revid1);	/* A */
+	UART_REG(revid2);	/* B */
+	UART_REG(pwr_mgmt);	/* C */
+	UART_REG(mdr1);		/* D */
+#else
 	UART_REG(mdr1);		/* 8 */
 	UART_REG(reg9);		/* 9 */
 	UART_REG(regA);		/* A */
@@ -58,6 +66,7 @@ struct NS16550 {
 	UART_REG(ssr);		/* 11*/
 	UART_REG(reg12);	/* 12*/
 	UART_REG(osc_12m_sel);	/* 13*/
+#endif
 };
 
 #define thr rbr