[PATCH] m68knommu: set GPIO lines for serial ports on 5282 in mcfseri…

…al.c

For the Freescale M5282 ColdFire,
Port UA Pin Assignment Register should set to UART mode.
Patch submitted by David Wu <davidwu@arcturusnetworks.com>.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/serial/mcfserial.c

@@ -1541,8 +1541,8 @@ static void mcfrs_irqinit(struct mcf_serial *info)
 		 * External Pin Mask Setting & Enable External Pin for Interface
 		 * mrcbis@aliceposta.it
         	 */
-		unsigned short *serpin_enable_mask;
-		serpin_enable_mask = (MCF_IPSBAR + MCF_GPIO_PAR_UART);
+		u16 *serpin_enable_mask;
+		serpin_enable_mask = (u16 *) (MCF_IPSBAR + MCF_GPIO_PAR_UART);
 		if (info->line == 0)
 			*serpin_enable_mask |= UART0_ENABLE_MASK;
 		else if (info->line == 1)
@@ -1551,6 +1551,13 @@ static void mcfrs_irqinit(struct mcf_serial *info)
 			*serpin_enable_mask |= UART2_ENABLE_MASK;
 	}
 #endif
+#if defined(CONFIG_M528x)
+	/* make sure PUAPAR is set for UART0 and UART1 */
+	if (info->line < 2) {
+		volatile unsigned char *portp = (volatile unsigned char *) (MCF_MBAR + MCF5282_GPIO_PUAPAR);
+		*portp |= (0x03 << (info->line * 2));
+	}
+#endif
 #elif defined(CONFIG_M520x)
 	volatile unsigned char *icrp, *uartp;
 	volatile unsigned long *imrp;