[MIPS] separate platform_device registration for VR41xx RTC

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

2 files changed, 118 insertions, 1 deletions

diff --git a/arch/mips/vr41xx/common/Makefile b/arch/mips/vr41xx/common/Makefile
index 22b074e7212..d0d84ec8d63 100644
--- a/arch/mips/vr41xx/common/Makefile
+++ b/arch/mips/vr41xx/common/Makefile
@@ -2,4 +2,4 @@
 # Makefile for common code of the NEC VR4100 series.
 #
 
-obj-y	+= bcu.o cmu.o giu.o icu.o init.o irq.o pmu.o siu.o type.o
+obj-y	+= bcu.o cmu.o giu.o icu.o init.o irq.o pmu.o rtc.o siu.o type.o
diff --git a/arch/mips/vr41xx/common/rtc.c b/arch/mips/vr41xx/common/rtc.c
new file mode 100644
index 00000000000..cce605b3d68
--- /dev/null
+++ b/arch/mips/vr41xx/common/rtc.c
@@ -0,0 +1,117 @@
+/*
+ *  NEC VR4100 series 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>
+
+#include <asm/cpu.h>
+#include <asm/vr41xx/irq.h>
+
+static struct resource rtc_type1_resource[] __initdata = {
+	{
+		.start	= 0x0b0000c0,
+		.end	= 0x0b0000df,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= 0x0b0001c0,
+		.end	= 0x0b0001df,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= ELAPSEDTIME_IRQ,
+		.end	= ELAPSEDTIME_IRQ,
+		.flags	= IORESOURCE_IRQ,
+	},
+	{
+		.start	= RTCLONG1_IRQ,
+		.end	= RTCLONG1_IRQ,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct resource rtc_type2_resource[] __initdata = {
+	{
+		.start	= 0x0f000100,
+		.end	= 0x0f00011f,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= 0x0f000120,
+		.end	= 0x0f00013f,
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.start	= ELAPSEDTIME_IRQ,
+		.end	= ELAPSEDTIME_IRQ,
+		.flags	= IORESOURCE_IRQ,
+	},
+	{
+		.start	= RTCLONG1_IRQ,
+		.end	= RTCLONG1_IRQ,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static int __init vr41xx_rtc_add(void)
+{
+	struct platform_device *pdev;
+	struct resource *res;
+	unsigned int num;
+	int retval;
+
+	pdev = platform_device_alloc("RTC", -1);
+	if (!pdev)
+		return -ENOMEM;
+
+	switch (current_cpu_data.cputype) {
+	case CPU_VR4111:
+	case CPU_VR4121:
+		res = rtc_type1_resource;
+		num = ARRAY_SIZE(rtc_type1_resource);
+		break;
+	case CPU_VR4122:
+	case CPU_VR4131:
+	case CPU_VR4133:
+		res = rtc_type2_resource;
+		num = ARRAY_SIZE(rtc_type2_resource);
+		break;
+	default:
+		retval = -ENODEV;
+		goto err_free_device;
+	}
+
+	retval = platform_device_add_resources(pdev, res, num);
+	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(vr41xx_rtc_add);