patch-2.4.0-test3 linux/arch/mips/cobalt/hw-access.c

• Lines: 59
• Date: Sun Jul 9 22:18:15 2000
• Orig file: v2.4.0-test2/linux/arch/mips/cobalt/hw-access.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.0-test2/linux/arch/mips/cobalt/hw-access.c linux/arch/mips/cobalt/hw-access.c
@@ -0,0 +1,58 @@
+/*
+ * Low-level hardware access stuff for Cobalt Microserver 27 board.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995, 1996, 1997 by Ralf Baechle
+ */
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/linkage.h>
+#include <linux/types.h>
+#include <asm/cachectl.h>
+#include <asm/cobalt.h>
+#include <asm/segment.h>
+#include <asm/vector.h>
+
+void
+dummy(void)
+{
+	panic("What the hell is this called for?");
+}
+
+static unsigned char cobalt_read_cmos(unsigned long reg)
+{
+	unsigned char retval;
+
+	VIA_PORT_WRITE(0x70, reg);
+	retval = VIA_PORT_READ(0x71);
+	VIA_DELAY();
+
+	return retval;
+}
+
+static void cobalt_write_cmos(unsigned char val, unsigned long reg)
+{
+	VIA_PORT_WRITE(0x70, reg);
+	VIA_PORT_WRITE(0x71, val); 
+}
+
+struct feature cobalt_feature = {
+	/*
+	 * How to access the floppy controller's ports
+	 */
+	(void *)dummy, (void *)dummy,
+	/*
+	 * How to access the floppy DMA functions.
+	 */
+	(void *)dummy, (void *)dummy, (void *)dummy, (void *)dummy,
+	(void *)dummy, (void *)dummy, (void *)dummy, (void *)dummy,
+	(void *)dummy, (void *)dummy, (void *)dummy,
+	/*
+	 * How to access the RTC functions.
+	 */
+	cobalt_read_cmos,
+	cobalt_write_cmos
+};