This patch add the RTC_LIB support for fuloong2e,fuloong2f.
To make hwclock work with it normally, please do:
kernel configuration:
Device Drivers --->
<*> Real Time Clock --->
<*> PC-style 'CMOS'
user-space configuration:
$ mknod /dev/rtc0 c 254 0
/dev/rtc0 is the default RTC device file.
of course, if udevd is installed, ignore the above user-space
configuration.
Signed-off-by: Wu Zhangjin <wuzhangjin@xxxxxxxxx>
---
arch/mips/loongson/common/Makefile | 7 +++++
arch/mips/loongson/common/rtc.c | 45 ++++++++++++++++++++++++++++++++++++
2 files changed, 52 insertions(+), 0 deletions(-)
create mode 100644 arch/mips/loongson/common/rtc.c
diff --git a/arch/mips/loongson/common/Makefile b/arch/mips/loongson/common/Makefile
index d3138b8..d2184c8 100644
--- a/arch/mips/loongson/common/Makefile
+++ b/arch/mips/loongson/common/Makefile
@@ -16,3 +16,10 @@ obj-$(CONFIG_SERIAL_8250) += serial.o
# space
#
obj-$(CONFIG_CS5536) += cs5536/
+
+#
+# Enable RTC Class support
+#
+# please enable CONFIG_RTC_DRV_CMOS
+#
+obj-$(CONFIG_RTC_DRV_CMOS) += rtc.o
diff --git a/arch/mips/loongson/common/rtc.c b/arch/mips/loongson/common/rtc.c
new file mode 100644
index 0000000..fe9464a
--- /dev/null
+++ b/arch/mips/loongson/common/rtc.c
@@ -0,0 +1,45 @@
+/*
+ * Registration of Cobalt RTC platform device.
+ *
+ * Copyright (C) 2007 Yoichi Yuasa <yoichi_yuasa@xxxxxxxxxxxxxx>
+ * Copyright (C) 2009 Wu Zhangjin <wuzj@xxxxxxxxxx>
+ *
+ * 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.
+ */
+
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/mc146818rtc.h>
+#include <linux/platform_device.h>
+
+static struct resource rtc_cmos_resource[] = {
+ {
+ .start = RTC_PORT(0),
+ .end = RTC_PORT(1),
+ .flags = IORESOURCE_IO,
+ },
+ {
+ .start = RTC_IRQ,
+ .end = RTC_IRQ,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device rtc_cmos_device = {
+ .name = "rtc_cmos",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(rtc_cmos_resource),
+ .resource = rtc_cmos_resource
+};
+
+static __init int rtc_cmos_init(void)
+{
+ platform_device_register(&rtc_cmos_device);
+
+ return 0;
+}
+
+device_initcall(rtc_cmos_init);
--
1.6.2.1
