[MIPS] Use RTC_CMOS for Cobalt

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

2 files changed, 64 insertions, 1 deletions

diff --git a/arch/mips/cobalt/Makefile b/arch/mips/cobalt/Makefile
index 444166651872..c292f80a8c74 100644
--- a/arch/mips/cobalt/Makefile
+++ b/arch/mips/cobalt/Makefile
@@ -2,7 +2,7 @@
 # Makefile for the Cobalt micro systems family specific parts of the kernel
 #
 
-obj-y := buttons.o irq.o reset.o serial.o setup.o
+obj-y := buttons.o irq.o reset.o rtc.o serial.o setup.o
 
 obj-$(CONFIG_PCI)               += pci.o
 obj-$(CONFIG_EARLY_PRINTK)      += console.o
diff --git a/arch/mips/cobalt/rtc.c b/arch/mips/cobalt/rtc.c
new file mode 100644
index 000000000000..284daefc5c55
--- /dev/null
+++ b/arch/mips/cobalt/rtc.c
@@ -0,0 +1,63 @@
+/*
+ *  Registration of Cobalt RTC platform device.
+ *
+ *  Copyright (C) 2007  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ *
+ *  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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+
+static struct resource cobalt_rtc_resource[] __initdata = {
+        {
+                .start  = 0x70,
+                .end    = 0x77,
+                .flags  = IORESOURCE_IO,
+        },
+        {
+                .start  = 8,
+                .end    = 8,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static __init int cobalt_rtc_add(void)
+{
+        struct platform_device *pdev;
+        int retval;
+
+        pdev = platform_device_alloc("rtc_cmos", -1);
+        if (!pdev)
+                return -ENOMEM;
+
+        retval = platform_device_add_resources(pdev, cobalt_rtc_resource,
+                                               ARRAY_SIZE(cobalt_rtc_resource));
+        if (retval)
+                goto err_free_device;
+
+        retval = platform_device_add(pdev);
+        if (retval)
+                goto err_free_device;
+
+        return 0;
+
+err_free_device:
+        platform_device_put(pdev);
+
+        return retval;
+}
+device_initcall(cobalt_rtc_add);