[PATCH] m68knommu: set GPIO lines for serial ports on 5282 in mcfserial.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>

1 files changed, 9 insertions, 2 deletions

diff --git a/drivers/serial/mcfserial.c b/drivers/serial/mcfserial.c
index 08430961a895..4e2eb351f74e 100644
--- a/drivers/serial/mcfserial.c
+++ b/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;