1 files changed, 72 insertions, 0 deletions

diff --git a/firmware/target/arm/imx31/uart-imx31.c b/firmware/target/arm/imx31/uart-imx31.c
new file mode 100644
index 0000000000..c54ac0c0ce
--- /dev/null
+++ b/firmware/target/arm/imx31/uart-imx31.c
@@ -0,0 +1,72 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 by Alan Korr & Nick Robinson
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+
+#include "config.h"
+#include "button.h"
+#include "cpu.h"
+#include "system.h"
+#include "kernel.h"
+#include "serial.h"
+
+#include "serial-imx31.h"
+
+void serial_setup(void)
+{
+#ifdef UART_INT /*enable UART Interrupts */
+    UCR1_1 |= (EUARTUCR1_TRDYEN | EUARTUCR1_RRDYEN | EUARTUCR1_TXMPTYEN);
+    UCR4_1 |= (EUARTUCR4_TCEN);
+#else /*disable UART Interrupts*/
+    UCR1_1 &= ~(EUARTUCR1_TRDYEN | EUARTUCR1_RRDYEN | EUARTUCR1_TXMPTYEN);
+    UCR4_1 &= ~(EUARTUCR4_TCEN);
+#endif
+    UCR1_1 |= EUARTUCR1_UARTEN;
+    UCR2_1 |= (EUARTUCR2_TXEN  | EUARTUCR2_RXEN | EUARTUCR2_IRTS);
+
+    /* Tx,Rx Interrupt Trigger levels, Disable for now*/
+    /*UFCR1 |= (UFCR1_TXTL_32 | UFCR1_RXTL_32);*/
+}
+
+int tx_rdy(void)
+{
+    if((UTS1 & EUARTUTS_TXEMPTY))
+        return 1;
+    else
+        return 0;
+}
+
+/*Not ready...After first Rx, UTS1 & UTS1_RXEMPTY
+  keeps returning true*/
+int rx_rdy(void)
+{
+    if(!(UTS1 & EUARTUTS_RXEMPTY))
+        return 1;
+    else
+        return 0;
+}
+
+void tx_writec(unsigned char c)
+{
+    UTXD1=(int) c;
+}
+