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-rw-r--r--arch/mips/Kconfig4
-rw-r--r--arch/mips/configs/jmr3927_defconfig24
-rw-r--r--arch/mips/jmr3927/common/Makefile2
-rw-r--r--arch/mips/jmr3927/common/rtc_ds1742.c171
-rw-r--r--arch/mips/jmr3927/rbhma3100/setup.c39
-rw-r--r--arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c3
-rw-r--r--arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c76
7 files changed, 68 insertions, 251 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 71729d0f013..e7e880b8745 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1895,10 +1895,6 @@ config HZ
source "kernel/Kconfig.preempt"
-config RTC_DS1742
- bool "DS1742 BRAM/RTC support"
- depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927
-
config MIPS_INSANE_LARGE
bool "Support for large 64-bit configurations"
depends on CPU_R10000 && 64BIT
diff --git a/arch/mips/configs/jmr3927_defconfig b/arch/mips/configs/jmr3927_defconfig
index 9ebb522fbbb..98b9fbc042f 100644
--- a/arch/mips/configs/jmr3927_defconfig
+++ b/arch/mips/configs/jmr3927_defconfig
@@ -148,7 +148,6 @@ CONFIG_HZ=1000
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
-CONFIG_RTC_DS1742=y
# CONFIG_KEXEC is not set
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
@@ -802,7 +801,28 @@ CONFIG_USB_ARCH_HAS_EHCI=y
#
# Real Time Clock
#
-# CONFIG_RTC_CLASS is not set
+CONFIG_RTC_LIB=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_HCTOSYS=y
+CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
+# CONFIG_RTC_DEBUG is not set
+
+#
+# RTC interfaces
+#
+CONFIG_RTC_INTF_SYSFS=y
+CONFIG_RTC_INTF_PROC=y
+CONFIG_RTC_INTF_DEV=y
+# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
+
+#
+# RTC drivers
+#
+# CONFIG_RTC_DRV_DS1553 is not set
+CONFIG_RTC_DRV_DS1742=y
+# CONFIG_RTC_DRV_M48T86 is not set
+# CONFIG_RTC_DRV_TEST is not set
+# CONFIG_RTC_DRV_V3020 is not set
#
# DMA Engine support
diff --git a/arch/mips/jmr3927/common/Makefile b/arch/mips/jmr3927/common/Makefile
index cb09a8eede1..01e7db19bcb 100644
--- a/arch/mips/jmr3927/common/Makefile
+++ b/arch/mips/jmr3927/common/Makefile
@@ -2,4 +2,4 @@
# Makefile for the common code of TOSHIBA JMR-TX3927 board
#
-obj-y += prom.o puts.o rtc_ds1742.o
+obj-y += prom.o puts.o
diff --git a/arch/mips/jmr3927/common/rtc_ds1742.c b/arch/mips/jmr3927/common/rtc_ds1742.c
deleted file mode 100644
index e6561345d12..00000000000
--- a/arch/mips/jmr3927/common/rtc_ds1742.c
+++ /dev/null
@@ -1,171 +0,0 @@
-/*
- * Copyright 2001 MontaVista Software Inc.
- * Author: MontaVista Software, Inc.
- * ahennessy@mvista.com
- *
- * arch/mips/jmr3927/common/rtc_ds1742.c
- * Based on arch/mips/ddb5xxx/common/rtc_ds1386.c
- * low-level RTC hookups for s for Dallas 1742 chip.
- *
- * Copyright (C) 2000-2001 Toshiba Corporation
- *
- * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * 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.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-
-/*
- * This file exports a function, rtc_ds1386_init(), which expects an
- * uncached base address as the argument. It will set the two function
- * pointers expected by the MIPS generic timer code.
- */
-
-#include <linux/bcd.h>
-#include <linux/types.h>
-#include <linux/time.h>
-#include <linux/rtc.h>
-#include <linux/ds1742rtc.h>
-
-#include <asm/time.h>
-#include <asm/addrspace.h>
-
-#include <asm/debug.h>
-
-#define EPOCH 2000
-
-static unsigned long rtc_base;
-
-static unsigned long
-rtc_ds1742_get_time(void)
-{
- unsigned int year, month, day, hour, minute, second;
- unsigned int century;
- unsigned long flags;
-
- spin_lock_irqsave(&rtc_lock, flags);
- rtc_write(RTC_READ, RTC_CONTROL);
- second = BCD2BIN(rtc_read(RTC_SECONDS) & RTC_SECONDS_MASK);
- minute = BCD2BIN(rtc_read(RTC_MINUTES));
- hour = BCD2BIN(rtc_read(RTC_HOURS));
- day = BCD2BIN(rtc_read(RTC_DATE));
- month = BCD2BIN(rtc_read(RTC_MONTH));
- year = BCD2BIN(rtc_read(RTC_YEAR));
- century = BCD2BIN(rtc_read(RTC_CENTURY) & RTC_CENTURY_MASK);
- rtc_write(0, RTC_CONTROL);
- spin_unlock_irqrestore(&rtc_lock, flags);
-
- year += century * 100;
-
- return mktime(year, month, day, hour, minute, second);
-}
-extern void to_tm(unsigned long tim, struct rtc_time * tm);
-
-static int
-rtc_ds1742_set_time(unsigned long t)
-{
- struct rtc_time tm;
- u8 year, month, day, hour, minute, second;
- u8 cmos_year, cmos_month, cmos_day, cmos_hour, cmos_minute, cmos_second;
- int cmos_century;
- unsigned long flags;
-
- spin_lock_irqsave(&rtc_lock, flags);
- rtc_write(RTC_READ, RTC_CONTROL);
- cmos_second = (u8)(rtc_read(RTC_SECONDS) & RTC_SECONDS_MASK);
- cmos_minute = (u8)rtc_read(RTC_MINUTES);
- cmos_hour = (u8)rtc_read(RTC_HOURS);
- cmos_day = (u8)rtc_read(RTC_DATE);
- cmos_month = (u8)rtc_read(RTC_MONTH);
- cmos_year = (u8)rtc_read(RTC_YEAR);
- cmos_century = rtc_read(RTC_CENTURY) & RTC_CENTURY_MASK;
-
- rtc_write(RTC_WRITE, RTC_CONTROL);
-
- /* convert */
- to_tm(t, &tm);
-
- /* check each field one by one */
- year = BIN2BCD(tm.tm_year - EPOCH);
- if (year != cmos_year) {
- rtc_write(year,RTC_YEAR);
- }
-
- month = BIN2BCD(tm.tm_mon);
- if (month != (cmos_month & 0x1f)) {
- rtc_write((month & 0x1f) | (cmos_month & ~0x1f),RTC_MONTH);
- }
-
- day = BIN2BCD(tm.tm_mday);
- if (day != cmos_day) {
-
- rtc_write(day, RTC_DATE);
- }
-
- if (cmos_hour & 0x40) {
- /* 12 hour format */
- hour = 0x40;
- if (tm.tm_hour > 12) {
- hour |= 0x20 | (BIN2BCD(hour-12) & 0x1f);
- } else {
- hour |= BIN2BCD(tm.tm_hour);
- }
- } else {
- /* 24 hour format */
- hour = BIN2BCD(tm.tm_hour) & 0x3f;
- }
- if (hour != cmos_hour) rtc_write(hour, RTC_HOURS);
-
- minute = BIN2BCD(tm.tm_min);
- if (minute != cmos_minute) {
- rtc_write(minute, RTC_MINUTES);
- }
-
- second = BIN2BCD(tm.tm_sec);
- if (second != cmos_second) {
- rtc_write(second & RTC_SECONDS_MASK,RTC_SECONDS);
- }
-
- /* RTC_CENTURY and RTC_CONTROL share same address... */
- rtc_write(cmos_century, RTC_CONTROL);
- spin_unlock_irqrestore(&rtc_lock, flags);
-
- return 0;
-}
-
-void
-rtc_ds1742_init(unsigned long base)
-{
- u8 cmos_second;
-
- /* remember the base */
- rtc_base = base;
- db_assert((rtc_base & 0xe0000000) == KSEG1);
-
- /* set the function pointers */
- rtc_mips_get_time = rtc_ds1742_get_time;
- rtc_mips_set_time = rtc_ds1742_set_time;
-
- /* clear oscillator stop bit */
- rtc_write(RTC_READ, RTC_CONTROL);
- cmos_second = (u8)(rtc_read(RTC_SECONDS) & RTC_SECONDS_MASK);
- rtc_write(RTC_WRITE, RTC_CONTROL);
- rtc_write(cmos_second, RTC_SECONDS); /* clear msb */
- rtc_write(0, RTC_CONTROL);
-}
diff --git a/arch/mips/jmr3927/rbhma3100/setup.c b/arch/mips/jmr3927/rbhma3100/setup.c
index ecabe5b0848..fc523bda068 100644
--- a/arch/mips/jmr3927/rbhma3100/setup.c
+++ b/arch/mips/jmr3927/rbhma3100/setup.c
@@ -45,6 +45,7 @@
#include <linux/param.h> /* for HZ */
#include <linux/delay.h>
#include <linux/pm.h>
+#include <linux/platform_device.h>
#ifdef CONFIG_SERIAL_TXX9
#include <linux/tty.h>
#include <linux/serial.h>
@@ -172,19 +173,10 @@ static cycle_t jmr3927_hpt_read(void)
return jiffies * (JMR3927_TIMER_CLK / HZ) + jmr3927_tmrptr->trr;
}
-#define USE_RTC_DS1742
-#ifdef USE_RTC_DS1742
-extern void rtc_ds1742_init(unsigned long base);
-#endif
static void __init jmr3927_time_init(void)
{
clocksource_mips.read = jmr3927_hpt_read;
mips_hpt_frequency = JMR3927_TIMER_CLK;
-#ifdef USE_RTC_DS1742
- if (jmr3927_have_nvram()) {
- rtc_ds1742_init(JMR3927_IOC_NVRAMB_ADDR);
- }
-#endif
}
void __init plat_timer_setup(struct irqaction *irq)
@@ -540,3 +532,32 @@ void __init tx3927_setup(void)
printk("TX3927 D-Cache WriteBack (CWF) .\n");
}
}
+
+/* This trick makes rtc-ds1742 driver usable as is. */
+unsigned long __swizzle_addr_b(unsigned long port)
+{
+ if ((port & 0xffff0000) != JMR3927_IOC_NVRAMB_ADDR)
+ return port;
+ port = (port & 0xffff0000) | (port & 0x7fff << 1);
+#ifdef __BIG_ENDIAN
+ return port;
+#else
+ return port | 1;
+#endif
+}
+EXPORT_SYMBOL(__swizzle_addr_b);
+
+static int __init jmr3927_rtc_init(void)
+{
+ struct resource res = {
+ .start = JMR3927_IOC_NVRAMB_ADDR - IO_BASE,
+ .end = JMR3927_IOC_NVRAMB_ADDR - IO_BASE + 0x800 - 1,
+ .flags = IORESOURCE_MEM,
+ };
+ struct platform_device *dev;
+ if (!jmr3927_have_nvram())
+ return -ENODEV;
+ dev = platform_device_register_simple("ds1742", -1, &res, 1);
+ return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+device_initcall(jmr3927_rtc_init);
diff --git a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c
index dcce88f403c..5cc30c10e74 100644
--- a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c
+++ b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c
@@ -132,9 +132,6 @@ JP7 is not bus master -- do NOT use -- only 4 pci bus master's allowed -- SouthB
#include <asm/wbflush.h>
#include <linux/bootmem.h>
#include <linux/blkdev.h>
-#ifdef CONFIG_RTC_DS1742
-#include <linux/ds1742rtc.h>
-#endif
#ifdef CONFIG_TOSHIBA_FPCIB0
#include <asm/tx4927/smsc_fdc37m81x.h>
#endif
diff --git a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
index 7316a78fdd6..0f7576dfd14 100644
--- a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
+++ b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c
@@ -53,6 +53,7 @@
#include <linux/pci.h>
#include <linux/timex.h>
#include <linux/pm.h>
+#include <linux/platform_device.h>
#include <asm/bootinfo.h>
#include <asm/page.h>
@@ -64,9 +65,6 @@
#include <asm/time.h>
#include <linux/bootmem.h>
#include <linux/blkdev.h>
-#ifdef CONFIG_RTC_DS1742
-#include <linux/ds1742rtc.h>
-#endif
#ifdef CONFIG_TOSHIBA_FPCIB0
#include <asm/tx4927/smsc_fdc37m81x.h>
#endif
@@ -1020,69 +1018,12 @@ void __init toshiba_rbtx4927_setup(void)
"+\n");
}
-#ifdef CONFIG_RTC_DS1742
-extern unsigned long rtc_ds1742_get_time(void);
-extern int rtc_ds1742_set_time(unsigned long);
-extern void rtc_ds1742_wait(void);
-#endif
-
void __init
toshiba_rbtx4927_time_init(void)
{
- u32 c1;
- u32 c2;
-
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, "-\n");
-#ifdef CONFIG_RTC_DS1742
-
- rtc_mips_get_time = rtc_ds1742_get_time;
- rtc_mips_set_time = rtc_ds1742_set_time;
-
- TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
- ":rtc_ds1742_init()-\n");
- rtc_ds1742_init(0xbc010000);
- TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
- ":rtc_ds1742_init()+\n");
-
- TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
- ":Calibrate mips_hpt_frequency-\n");
- rtc_ds1742_wait();
-
- /* get the count */
- c1 = read_c0_count();
-
- /* wait for the seconds to change again */
- rtc_ds1742_wait();
-
- /* get the count again */
- c2 = read_c0_count();
-
- TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
- ":Calibrate mips_hpt_frequency+\n");
- TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
- ":c1=%12u\n", c1);
- TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
- ":c2=%12u\n", c2);
-
- /* this diff is as close as we are going to get to counter ticks per sec */
- mips_hpt_frequency = abs(c2 - c1);
- TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
- ":f1=%12u\n", mips_hpt_frequency);
-
- /* round to 1/10th of a MHz */
- mips_hpt_frequency /= (100 * 1000);
- mips_hpt_frequency *= (100 * 1000);
- TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT,
- ":f2=%12u\n", mips_hpt_frequency);
-
- TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_INFO,
- ":mips_hpt_frequency=%uHz (%uMHz)\n",
- mips_hpt_frequency,
- mips_hpt_frequency / 1000000);
-#else
- mips_hpt_frequency = 100000000;
-#endif
+ mips_hpt_frequency = tx4927_cpu_clock / 2;
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIME_INIT, "+\n");
@@ -1095,3 +1036,16 @@ void __init toshiba_rbtx4927_timer_setup(struct irqaction *irq)
TOSHIBA_RBTX4927_SETUP_DPRINTK(TOSHIBA_RBTX4927_SETUP_TIMER_SETUP,
"+\n");
}
+
+static int __init toshiba_rbtx4927_rtc_init(void)
+{
+ struct resource res = {
+ .start = 0x1c010000,
+ .end = 0x1c010000 + 0x800 - 1,
+ .flags = IORESOURCE_MEM,
+ };
+ struct platform_device *dev =
+ platform_device_register_simple("ds1742", -1, &res, 1);
+ return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+device_initcall(toshiba_rbtx4927_rtc_init);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-03 02:29:12 +0000