* Patch by Peter Ryser, 20 Feb 2004:

[karo-tx-uboot.git] / board / xilinx / ml300 / serial.c

diff --git a/board/xilinx/ml300/serial.c b/board/xilinx/ml300/serial.c
new file mode 100644 (file)
index 0000000..19bcc6f
--- /dev/null
+++ b/board/xilinx/ml300/serial.c
@@ -0,0 +1,155 @@
+/*
+ *     Author: Xilinx, Inc.
+ *
+ *
+ *     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.
+ *
+ *
+ *     XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" AS A
+ *     COURTESY TO YOU. BY PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
+ *     ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION OR STANDARD,
+ *     XILINX IS MAKING NO REPRESENTATION THAT THIS IMPLEMENTATION IS FREE
+ *     FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE RESPONSIBLE FOR OBTAINING
+ *     ANY THIRD PARTY RIGHTS YOU MAY REQUIRE FOR YOUR IMPLEMENTATION.
+ *     XILINX EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH RESPECT TO
+ *     THE ADEQUACY OF THE IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY
+ *     WARRANTIES OR REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM
+ *     CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ *     FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ *
+ *     Xilinx hardware products are not intended for use in life support
+ *     appliances, devices, or systems. Use in such applications is
+ *     expressly prohibited.
+ *
+ *
+ *     (c) Copyright 2002-2004 Xilinx Inc.
+ *     All rights reserved.
+ *
+ *
+ *     You should have received a copy of the GNU General Public License along
+ *     with this program; if not, write to the Free Software Foundation, Inc.,
+ *     675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <asm/u-boot.h>
+#include <asm/processor.h>
+#include <common.h>
+#include <command.h>
+#include <configs/ml300.h>
+#include "xparameters.h"
+
+#define USE_CHAN1 \
+       ((defined XPAR_UARTNS550_0_BASEADDR) && (defined CFG_INIT_CHAN1))
+#define USE_CHAN2 \
+       ((defined XPAR_UARTNS550_1_BASEADDR) && (defined CFG_INIT_CHAN2))
+
+#if USE_CHAN1
+#include <ns16550.h>
+#endif
+
+#if USE_CHAN1
+const NS16550_t COM_PORTS[] = { (NS16550_t) (XPAR_UARTNS550_0_BASEADDR + 3)
+#if USE_CHAN2
+           , (NS16550_t) (XPAR_UARTNS550_1_BASEADDR + 3)
+#endif
+};
+#endif
+
+int
+serial_init(void)
+{
+#if USE_CHAN1
+       DECLARE_GLOBAL_DATA_PTR;
+       int clock_divisor;
+
+       clock_divisor = XPAR_UARTNS550_0_CLOCK_FREQ_HZ / 16 / gd->baudrate;
+       (void) NS16550_init(COM_PORTS[0], clock_divisor);
+#if USE_CHAN2
+       clock_divisor = XPAR_UARTNS550_1_CLOCK_FREQ_HZ / 16 / gd->baudrate;
+       (void) NS16550_init(COM_PORTS[1], clock_divisor);
+#endif
+#endif
+       return 0;
+
+}
+
+void
+serial_putc(const char c)
+{
+       if (c == '\n')
+               NS16550_putc(COM_PORTS[CFG_DUART_CHAN], '\r');
+
+       NS16550_putc(COM_PORTS[CFG_DUART_CHAN], c);
+}
+
+int
+serial_getc(void)
+{
+       return NS16550_getc(COM_PORTS[CFG_DUART_CHAN]);
+}
+
+int
+serial_tstc(void)
+{
+       return NS16550_tstc(COM_PORTS[CFG_DUART_CHAN]);
+}
+
+void
+serial_setbrg(void)
+{
+#if USE_CHAN1
+       DECLARE_GLOBAL_DATA_PTR;
+       int clock_divisor;
+
+       clock_divisor = XPAR_UARTNS550_0_CLOCK_FREQ_HZ / 16 / gd->baudrate;
+       NS16550_reinit(COM_PORTS[0], clock_divisor);
+#if USE_CHAN2
+       clock_divisor = XPAR_UARTNS550_1_CLOCK_FREQ_HZ / 16 / gd->baudrate;
+       NS16550_reinit(COM_PORTS[1], clock_divisor);
+#endif
+#endif
+}
+
+void
+serial_puts(const char *s)
+{
+       while (*s) {
+               serial_putc(*s++);
+       }
+}
+
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+void
+kgdb_serial_init(void)
+{
+}
+
+void
+putDebugChar(int c)
+{
+       serial_putc(c);
+}
+
+void
+putDebugStr(const char *str)
+{
+       serial_puts(str);
+}
+
+int
+getDebugChar(void)
+{
+       return serial_getc();
+}
+
+void
+kgdb_interruptible(int yes)
+{
+       return;
+}
+#endif                         /* CFG_CMD_KGDB */