Initial revision

4 files changed, 356 insertions, 0 deletions

diff --git a/board/pcippc2/fpga_serial.c b/board/pcippc2/fpga_serial.c
new file mode 100644
index 0000000..579bfc7
--- /dev/null
+++ b/board/pcippc2/fpga_serial.c
@@ -0,0 +1,132 @@
+/*
+ * (C) Copyright 2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <common.h>
+#include <asm/io.h>
+
+#include "fpga_serial.h"
+#include "hardware.h"
+#include "pcippc2.h"
+
+  /* 8 data, 1 stop, no parity
+   */
+#define LCRVAL		0x03
+  /* RTS/DTR
+   */
+#define MCRVAL		0x03
+  /* Clear & enable FIFOs
+   */
+#define FCRVAL		0x07
+
+static void fpga_serial_wait (void);
+static void fpga_serial_print (char c);
+
+void fpga_serial_init (int baudrate)
+{
+	int clock_divisor = 115200 / baudrate;
+
+	out8 (FPGA (INT, SERIAL_CONFIG), 0x24);
+	iobarrier_rw ();
+
+	fpga_serial_wait ();
+
+	out8 (UART (IER), 0);
+	out8 (UART (LCR), LCRVAL | 0x80);
+	iobarrier_rw ();
+	out8 (UART (DLL), clock_divisor & 0xff);
+	out8 (UART (DLM), clock_divisor >> 8);
+	iobarrier_rw ();
+	out8 (UART (LCR), LCRVAL);
+	iobarrier_rw ();
+	out8 (UART (MCR), MCRVAL);
+	out8 (UART (FCR), FCRVAL);
+	iobarrier_rw ();
+}
+
+void fpga_serial_putc (char c)
+{
+	if (c) {
+		fpga_serial_print (c);
+	}
+}
+
+void fpga_serial_puts (const char *s)
+{
+	while (*s) {
+		fpga_serial_print (*s++);
+	}
+}
+
+int fpga_serial_getc (void)
+{
+	while ((in8 (UART (LSR)) & 0x01) == 0);
+
+	return in8 (UART (RBR));
+}
+
+int fpga_serial_tstc (void)
+{
+	return (in8 (UART (LSR)) & 0x01) != 0;
+}
+
+void fpga_serial_setbrg (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	int clock_divisor = 115200 / gd->baudrate;
+
+	fpga_serial_wait ();
+
+	out8 (UART (LCR), LCRVAL | 0x80);
+	iobarrier_rw ();
+	out8 (UART (DLL), clock_divisor & 0xff);
+	out8 (UART (DLM), clock_divisor >> 8);
+	iobarrier_rw ();
+	out8 (UART (LCR), LCRVAL);
+	iobarrier_rw ();
+}
+
+static void fpga_serial_wait (void)
+{
+	while ((in8 (UART (LSR)) & 0x40) == 0);
+}
+
+static void fpga_serial_print (char c)
+{
+	if (c == '\n') {
+		while ((in8 (UART (LSR)) & 0x20) == 0);
+
+		out8 (UART (THR), '\r');
+		iobarrier_rw ();
+	}
+
+	while ((in8 (UART (LSR)) & 0x20) == 0);
+
+	out8 (UART (THR), c);
+	iobarrier_rw ();
+
+	if (c == '\n') {
+		fpga_serial_wait ();
+	}
+}
diff --git a/board/pcippc2/fpga_serial.h b/board/pcippc2/fpga_serial.h
new file mode 100644
index 0000000..92c9cdd
--- /dev/null
+++ b/board/pcippc2/fpga_serial.h
@@ -0,0 +1,34 @@
+/*
+ * (C) Copyright 2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _FPGA_SERIAL_H_
+#define _FPGA_SERIAL_H_
+
+extern void	fpga_serial_init	(int);
+extern void	fpga_serial_putc 	(char);
+extern void	fpga_serial_puts 	(const char *);
+extern int	fpga_serial_getc 	(void);
+extern int	fpga_serial_tstc 	(void);
+extern void	fpga_serial_setbrg 	(void);
+
+#endif
diff --git a/board/pcippc2/sconsole.c b/board/pcippc2/sconsole.c
new file mode 100644
index 0000000..a9f2b29
--- /dev/null
+++ b/board/pcippc2/sconsole.c
@@ -0,0 +1,141 @@
+/*
+ * (C) Copyright 2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <common.h>
+
+#include "sconsole.h"
+
+void	(*sconsole_putc) (char) = 0;
+void	(*sconsole_puts) (const char *) = 0;
+int	(*sconsole_getc) (void) = 0;
+int	(*sconsole_tstc) (void) = 0;
+void	(*sconsole_setbrg) (void) = 0;
+
+int serial_init (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	sconsole_buffer_t *sb = SCONSOLE_BUFFER;
+
+	sb->pos  = 0;
+	sb->size = 0;
+	sb->baud = gd->baudrate;
+	sb->max_size = CFG_SCONSOLE_SIZE - sizeof (sconsole_buffer_t);
+
+	return (0);
+}
+
+void serial_putc (char c)
+{
+	if (sconsole_putc) {
+		(*sconsole_putc) (c);
+	} else {
+		sconsole_buffer_t *sb = SCONSOLE_BUFFER;
+
+		if (c) {
+			sb->data[sb->pos++] = c;
+			if (sb->pos == sb->max_size) {
+				sb->pos = 0;
+			}
+			if (sb->size < sb->max_size) {
+				sb->size++;
+			}
+		}
+	}
+}
+
+void serial_puts (const char *s)
+{
+	if (sconsole_puts) {
+		(*sconsole_puts) (s);
+	} else {
+		sconsole_buffer_t *sb = SCONSOLE_BUFFER;
+
+		while (*s) {
+			sb->data[sb->pos++] = *s++;
+			if (sb->pos == sb->max_size) {
+				sb->pos = 0;
+			}
+			if (sb->size < sb->max_size) {
+				sb->size++;
+			}
+		}
+	}
+}
+
+int serial_getc (void)
+{
+	if (sconsole_getc) {
+		return (*sconsole_getc) ();
+	} else {
+		return 0;
+	}
+}
+
+int serial_tstc (void)
+{
+	if (sconsole_tstc) {
+		return (*sconsole_tstc) ();
+	} else {
+		return 0;
+	}
+}
+
+void serial_setbrg (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	if (sconsole_setbrg) {
+		(*sconsole_setbrg) ();
+	} else {
+		sconsole_buffer_t *sb = SCONSOLE_BUFFER;
+
+		sb->baud = gd->baudrate;
+	}
+}
+
+int sconsole_get_baudrate (void)
+{
+	sconsole_buffer_t *sb = SCONSOLE_BUFFER;
+
+	return sb->baud;
+}
+
+void sconsole_flush (void)
+{
+	if (sconsole_putc) {
+		sconsole_buffer_t *sb = SCONSOLE_BUFFER;
+		unsigned int end = sb->pos < sb->size
+				? sb->pos + sb->max_size - sb->size
+				: sb->pos - sb->size;
+
+		while (sb->size) {
+			(*sconsole_putc) (sb->data[end++]);
+			if (end == sb->max_size) {
+				end = 0;
+			}
+			sb->size--;
+		}
+	}
+}
diff --git a/board/pcippc2/sconsole.h b/board/pcippc2/sconsole.h
new file mode 100644
index 0000000..40fd75b
--- /dev/null
+++ b/board/pcippc2/sconsole.h
@@ -0,0 +1,49 @@
+/*
+ * (C) Copyright 2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _SCONSOLE_H_
+#define _SCONSOLE_H_
+
+#include <config.h>
+
+typedef struct sconsole_buffer_s
+{
+  unsigned long		size;
+  unsigned long		max_size;
+  unsigned long 	pos;
+  unsigned long 	baud;
+  char			data [1];
+} sconsole_buffer_t;
+
+#define SCONSOLE_BUFFER		((sconsole_buffer_t *) CFG_SCONSOLE_ADDR)
+
+extern void	(* sconsole_putc) 	(char);
+extern void	(* sconsole_puts) 	(const char *);
+extern int	(* sconsole_getc) 	(void);
+extern int	(* sconsole_tstc) 	(void);
+extern void	(* sconsole_setbrg) 	(void);
+
+extern void	sconsole_flush		(void);
+extern int 	sconsole_get_baudrate 	(void);
+
+#endif