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--- linux-2.6.13/.pc/55-nslu2-rtc.patch/arch/arm/mach-ixp4xx/Makefile 2005-10-26 15:19:43.171472071 -0700
+++ linux-2.6.13/arch/arm/mach-ixp4xx/Makefile 2005-10-26 15:23:52.923187955 -0700
@@ -8,5 +8,5 @@ obj-$(CONFIG_ARCH_IXDP4XX) += ixdp425-pc
obj-$(CONFIG_MACH_IXDPG425) += ixdpg425-pci.o coyote-setup.o
obj-$(CONFIG_ARCH_ADI_COYOTE) += coyote-pci.o coyote-setup.o
obj-$(CONFIG_MACH_GTWX5715) += gtwx5715-pci.o gtwx5715-setup.o
-obj-$(CONFIG_MACH_NSLU2) += nslu2-pci.o nslu2-setup.o nslu2-power.o
+obj-$(CONFIG_MACH_NSLU2) += nslu2-pci.o nslu2-setup.o nslu2-power.o nslu2-rtc.o
--- linux-2.6.13/.pc/55-nslu2-rtc.patch/arch/arm/mach-ixp4xx/nslu2-rtc.c 2005-10-26 15:19:43.443489188 -0700
+++ linux-2.6.13/arch/arm/mach-ixp4xx/nslu2-rtc.c 2005-10-26 15:23:52.923187955 -0700
@@ -0,0 +1,113 @@
+/*
+ * arch/arm/mach-ixp4xx/nslu2-rtc.c
+ *
+ * NSLU2 RTC driver
+ *
+ * Copyright (C) 2005 Tower Technologies
+ *
+ * based on x1205-rtc.c
+ * Copyright (C) 2004 Karen Spearel
+ *
+ * Author: Alessandro Zummo <a.zummo@towertech.it>
+ * Maintainers: http://www.nslu2-linux.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/time.h>
+#include <linux/rtc.h>
+#include <linux/init.h>
+
+#include <linux/x1205.h>
+
+#include <asm/rtc.h>
+#include <asm/mach-types.h>
+
+extern int (*set_rtc)(void);
+
+static int nslu2_set_rtc(void)
+{
+ struct rtc_time new_tm, old_tm;
+ unsigned long cur_secs = xtime.tv_sec;
+
+ if (x1205_do_command(X1205_CMD_GETDATETIME, &old_tm))
+ return 0;
+
+ /* FIXME xtime.tv_nsec = old_tm.tm_sec * 10000000; */
+ new_tm.tm_sec = cur_secs % 60;
+ cur_secs /= 60;
+ new_tm.tm_min = cur_secs % 60;
+ cur_secs /= 60;
+ new_tm.tm_hour = cur_secs % 24;
+
+ /*
+ * avoid writing when we're going to change the day
+ * of the month. We will retry in the next minute.
+ * This basically means that if the RTC must not drift
+ * by more than 1 minute in 11 minutes.
+ */
+ if ((old_tm.tm_hour == 23 && old_tm.tm_min == 59) ||
+ (new_tm.tm_hour == 23 && new_tm.tm_min == 59))
+ return 1;
+
+ return x1205_do_command(X1205_CMD_SETTIME, &new_tm);
+}
+
+static int rtc_read_alarm(struct rtc_wkalrm *alrm)
+{
+ return x1205_do_command(X1205_CMD_GETALARM, &alrm->time);
+}
+
+static int rtc_set_alarm(struct rtc_wkalrm *alrm)
+{
+ return x1205_do_command(X1205_CMD_SETALARM, &alrm->time);
+}
+
+static int rtc_read_time(struct rtc_time *tm)
+{
+ return x1205_do_command(X1205_CMD_GETDATETIME, tm);
+}
+
+static int rtc_set_time(struct rtc_time *tm)
+{
+ return x1205_do_command(X1205_CMD_SETDATETIME, tm);
+}
+
+static struct rtc_ops rtc_ops = {
+ .owner = THIS_MODULE,
+ .read_time = rtc_read_time,
+ .set_time = rtc_set_time,
+ .read_alarm = rtc_read_alarm,
+ .set_alarm = rtc_set_alarm,
+};
+
+static int __init nslu2_rtc_init(void)
+{
+ int ret;
+
+ if (!(machine_is_nslu2()))
+ return 0;
+
+ printk(KERN_INFO "NSLU2: rtc\n");
+
+ if ((ret = register_rtc(&rtc_ops)) != 0)
+ return ret;
+
+ set_rtc = nslu2_set_rtc;
+
+ return 0;
+}
+
+static void __exit nslu2_rtc_exit(void)
+{
+ set_rtc = NULL;
+
+ unregister_rtc(&rtc_ops);
+}
+
+module_init(nslu2_rtc_init);
+module_exit(nslu2_rtc_exit);
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