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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>
This commit is contained in:
Arnaud Patard 2010-06-02 00:39:54 +02:00 committed by Ralf Baechle
parent 17c04139fd
commit 5df7435287
3 changed files with 50 additions and 0 deletions
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6
arch/mips/loongson/Kconfig
View File

@ -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

1
arch/mips/loongson/common/Makefile
View File

@ -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

43
arch/mips/loongson/common/rtc.c Normal file
View File

@ -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);