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authorArnaud Patard <apatard@mandriva.com>2010-06-02 00:39:54 +0200
committerRalf Baechle <ralf@linux-mips.org>2010-07-05 17:17:32 +0100
commit5df74352876c0835d2b41b53858c9ee779e0f12f (patch)
tree5c6dded0090a897483a286c48b178f8df6049fbd /arch/mips/loongson
parent17c04139fd2aeaef30fda380bb91b32de7b41a8f (diff)
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MIPS: Loongson: Define rtc device on MC146818-equipped systems
This patch declare the rtc device present on systems with clock compatible with the mc146818 and handled by rtc-cmos. Introduce a new Kconfig entry because there are some systems without rtc_cmos compatible clock. Signed-off-by: Arnaud Patard <apatard@mandriva.com> To: linux-mips@linux-mips.org Cc: aba@not.so.argh.org Patchwork: http://patchwork.linux-mips.org/patch/1320/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/loongson')
-rw-r--r--arch/mips/loongson/Kconfig6
-rw-r--r--arch/mips/loongson/common/Makefile1
-rw-r--r--arch/mips/loongson/common/rtc.c43
3 files changed, 50 insertions, 0 deletions
diff --git a/arch/mips/loongson/Kconfig b/arch/mips/loongson/Kconfig
index 3df1967dea08..c97ca69b94e0 100644
--- a/arch/mips/loongson/Kconfig
+++ b/arch/mips/loongson/Kconfig
@@ -23,6 +23,7 @@ config LEMOTE_FULOONG2E
select GENERIC_HARDIRQS_NO__DO_IRQ
select GENERIC_ISA_DMA_SUPPORT_BROKEN
select CPU_HAS_WB
+ select LOONGSON_MC146818
help
Lemote Fuloong(2e) mini-PC board based on the Chinese Loongson-2E CPU and
an FPGA northbridge
@@ -51,6 +52,7 @@ config LEMOTE_MACH2F
select SYS_SUPPORTS_64BIT_KERNEL
select SYS_SUPPORTS_HIGHMEM
select SYS_SUPPORTS_LITTLE_ENDIAN
+ select LOONGSON_MC146818
help
Lemote Loongson 2F family machines utilize the 2F revision of
Loongson processor and the AMD CS5536 south bridge.
@@ -83,3 +85,7 @@ config LOONGSON_UART_BASE
bool
default y
depends on EARLY_PRINTK || SERIAL_8250
+
+config LOONGSON_MC146818
+ bool
+ default n
diff --git a/arch/mips/loongson/common/Makefile b/arch/mips/loongson/common/Makefile
index cdd2e812ba1a..e526488df655 100644
--- a/arch/mips/loongson/common/Makefile
+++ b/arch/mips/loongson/common/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_GENERIC_GPIO) += gpio.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
obj-$(CONFIG_SERIAL_8250) += serial.o
obj-$(CONFIG_LOONGSON_UART_BASE) += uart_base.o
+obj-$(CONFIG_LOONGSON_MC146818) += rtc.o
#
# Enable CS5536 Virtual Support Module(VSM) to virtulize the PCI configure
diff --git a/arch/mips/loongson/common/rtc.c b/arch/mips/loongson/common/rtc.c
new file mode 100644
index 000000000000..a90d87c01555
--- /dev/null
+++ b/arch/mips/loongson/common/rtc.c
@@ -0,0 +1,43 @@
+/*
+ * Lemote Fuloong platform support
+ *
+ * Copyright(c) 2010 Arnaud Patard <apatard@mandriva.com>
+ *
+ * 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/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/mc146818rtc.h>
+
+struct resource loongson_rtc_resources[] = {
+ {
+ .start = RTC_PORT(0),
+ .end = RTC_PORT(1),
+ .flags = IORESOURCE_IO,
+ }, {
+ .start = RTC_IRQ,
+ .end = RTC_IRQ,
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+static struct platform_device loongson_rtc_device = {
+ .name = "rtc_cmos",
+ .id = -1,
+ .resource = loongson_rtc_resources,
+ .num_resources = ARRAY_SIZE(loongson_rtc_resources),
+};
+
+
+static int __init loongson_rtc_platform_init(void)
+{
+ platform_device_register(&loongson_rtc_device);
+ return 0;
+}
+
+device_initcall(loongson_rtc_platform_init);