patch-2.4.19 linux-2.4.19/arch/mips/sgi-ip22/ip22-rtc.c

• Lines: 37
• Date: Fri Aug 2 17:39:43 2002
• Orig file: linux-2.4.18/arch/mips/sgi-ip22/ip22-rtc.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -urN linux-2.4.18/arch/mips/sgi-ip22/ip22-rtc.c linux-2.4.19/arch/mips/sgi-ip22/ip22-rtc.c
@@ -0,0 +1,36 @@
+/*
+ * 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.
+ *
+ * RTC routines for Indy style attached Dallas chip.
+ *
+ * Copyright (C) 1998, 2001 by Ralf Baechle
+ */
+#include <asm/ds1286.h>
+#include <asm/sgi/sgihpc.h>
+
+static unsigned char indy_rtc_read_data(unsigned long addr)
+{
+	volatile unsigned int *rtcregs = (void *)INDY_CLOCK_REGS;
+
+	return rtcregs[addr];
+}
+
+static void indy_rtc_write_data(unsigned char data, unsigned long addr)
+{
+	volatile unsigned int *rtcregs = (void *)INDY_CLOCK_REGS;
+
+	rtcregs[addr] = data;
+}
+
+static int indy_rtc_bcd_mode(void)
+{
+	return 0;
+}
+
+struct rtc_ops indy_rtc_ops = {
+	&indy_rtc_read_data,
+	&indy_rtc_write_data,
+	&indy_rtc_bcd_mode
+};