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MIPS: Loongson64: Remove dead RTC code 

RTC is now enabled by devicetree. So platform code is
no longer needed.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Jiaxun Yang 2020-04-20 21:45:25 +08:00 committed by Thomas Bogendoerfer
parent 7a6659a591
commit a746f50d69
5 changed files with 1 additions and 87 deletions
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36
arch/mips/include/asm/mach-loongson64/mc146818rtc.h
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@ -1,36 +0,0 @@
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1998, 2001, 03, 07 by Ralf Baechle (ralf@linux-mips.org)
*
* RTC routines for PC style attached Dallas chip.
*/
#ifndef __ASM_MACH_LOONGSON64_MC146818RTC_H
#define __ASM_MACH_LOONGSON64_MC146818RTC_H
#include <linux/io.h>
#define RTC_PORT(x) (0x70 + (x))
#define RTC_IRQ 8
static inline unsigned char CMOS_READ(unsigned long addr)
{
outb_p(addr, RTC_PORT(0));
return inb_p(RTC_PORT(1));
}
static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
{
outb_p(addr, RTC_PORT(0));
outb_p(data, RTC_PORT(1));
}
#define RTC_ALWAYS_BCD 0
#ifndef mc146818_decode_year
#define mc146818_decode_year(year) ((year) < 70 ? (year) + 2000 : (year) + 1970)
#endif
#endif /* __ASM_MACH_LOONGSON64_MC146818RTC_H */

4
arch/mips/loongson64/Kconfig
View File

@ -14,8 +14,4 @@ config RS780_HPET
If unsure, say Yes.
config LOONGSON_MC146818
bool
default n
endif # MACH_LOONGSON64

1
arch/mips/loongson64/Makefile
View File

@ -9,5 +9,4 @@ obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_NUMA) += numa.o
obj-$(CONFIG_RS780_HPET) += hpet.o
obj-$(CONFIG_PCI) += pci.o
obj-$(CONFIG_LOONGSON_MC146818) += rtc.o
obj-$(CONFIG_SUSPEND) += pm.o

39
arch/mips/loongson64/rtc.c
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@ -1,39 +0,0 @@
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Lemote Fuloong platform support
*
* Copyright(c) 2010 Arnaud Patard <apatard@mandriva.com>
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/mc146818rtc.h>
static 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);

8
arch/mips/loongson64/time.c
View File

@ -6,7 +6,7 @@
* Copyright (C) 2009 Lemote Inc.
* Author: Wu Zhangjin, wuzhangjin@gmail.com
*/
#include <asm/mc146818-time.h>
#include <asm/time.h>
#include <asm/hpet.h>
@ -21,9 +21,3 @@ void __init plat_time_init(void)
setup_hpet_timer();
#endif
}
void read_persistent_clock64(struct timespec64 *ts)
{
ts->tv_sec = mc146818_get_cmos_time();
ts->tv_nsec = 0;
}