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    Subject[PATCH 2.6.9-rc3-mm2 2/5] [m32r] Remove arch/m32r/drivers/ds1302.c
    From
    [PATCH 2.6.9-rc3-mm2 2/5] [m32r] Remove arch/m32r/drivers/ds1302.c

    Please remove obsolete m32r-specific driver files,
    which are no longer used.

    Thanks.

    Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
    ---

    arch/m32r/drivers/ds1302.c | 432 ---------------------------------------------
    1 files changed, 432 deletions(-)


    diff -ruNp a/arch/m32r/drivers/ds1302.c b/arch/m32r/drivers/ds1302.c
    --- a/arch/m32r/drivers/ds1302.c 2004-10-01 11:14:54.000000000 +0900
    +++ b/arch/m32r/drivers/ds1302.c 1970-01-01 09:00:00.000000000 +0900
    @@ -1,432 +0,0 @@
    -/*!***************************************************************************
    -*!
    -*! FILE NAME : ds1302.c
    -*!
    -*! DESCRIPTION: Implements an interface for the DS1302 RTC through Etrax I/O
    -*!
    -*! Functions exported: ds1302_readreg, ds1302_writereg, ds1302_init, get_rtc_status
    -*!
    -*! $Log: ds1302.c,v $
    -*! Revision 1.2 2003/10/29 08:42:58 fujiwara
    -*! Set PLD_RTCBAUR from bus clock
    -*!
    -*! Revision 1.12 2002/04/10 15:35:25 johana
    -*! Moved probe function closer to init function and marked it __init.
    -*!
    -*! Revision 1.11 2001/06/14 12:35:52 jonashg
    -*! The ATA hack is back. It is unfortunately the only way to set g27 to output.
    -*!
    -*! Revision 1.9 2001/06/14 10:00:14 jonashg
    -*! No need for tempudelay to be inline anymore (had to adjust the usec to
    -*! loops conversion because of this to make it slow enough to be a udelay).
    -*!
    -*! Revision 1.8 2001/06/14 08:06:32 jonashg
    -*! Made tempudelay delay usecs (well, just a tad more).
    -*!
    -*! Revision 1.7 2001/06/13 14:18:11 jonashg
    -*! Only allow processes with SYS_TIME capability to set time and charge.
    -*!
    -*! Revision 1.6 2001/06/12 15:22:07 jonashg
    -*! * Made init function __init.
    -*! * Parameter to out_byte() is unsigned char.
    -*! * The magic number 42 has got a name.
    -*! * Removed comment about /proc (nothing is exported there).
    -*!
    -*! Revision 1.5 2001/06/12 14:35:13 jonashg
    -*! Gave the module a name and added it to printk's.
    -*!
    -*! Revision 1.4 2001/05/31 14:53:40 jonashg
    -*! Made tempudelay() inline so that the watchdog doesn't reset (see
    -*! function comment).
    -*!
    -*! Revision 1.3 2001/03/26 16:03:06 bjornw
    -*! Needs linux/config.h
    -*!
    -*! Revision 1.2 2001/03/20 19:42:00 bjornw
    -*! Use the ETRAX prefix on the DS1302 options
    -*!
    -*! Revision 1.1 2001/03/20 09:13:50 magnusmn
    -*! Linux 2.4 port
    -*!
    -*! Revision 1.10 2000/07/05 15:38:23 bjornw
    -*! Dont update kernel time when a RTC_SET_TIME is done
    -*!
    -*! Revision 1.9 2000/03/02 15:42:59 macce
    -*! * Hack to make RTC work on all 2100/2400
    -*!
    -*! Revision 1.8 2000/02/23 16:59:18 torbjore
    -*! added setup of R_GEN_CONFIG when RTC is connected to the generic port.
    -*!
    -*! Revision 1.7 2000/01/17 15:51:43 johana
    -*! Added RTC_SET_CHARGE ioctl to enable trickle charger.
    -*!
    -*! Revision 1.6 1999/10/27 13:19:47 bjornw
    -*! Added update_xtime_from_cmos which reads back the updated RTC into the kernel.
    -*! /dev/rtc calls it now.
    -*!
    -*! Revision 1.5 1999/10/27 12:39:37 bjornw
    -*! Disabled superuser check. Anyone can now set the time.
    -*!
    -*! Revision 1.4 1999/09/02 13:27:46 pkj
    -*! Added shadow for R_PORT_PB_CONFIG.
    -*! Renamed port_g_shadow to port_g_data_shadow.
    -*!
    -*! Revision 1.3 1999/09/02 08:28:06 pkj
    -*! Made it possible to select either port PB or the generic port for the RST
    -*! signal line to the DS1302 RTC.
    -*! Also make sure the RST bit is configured as output on Port PB (if used).
    -*!
    -*! Revision 1.2 1999/09/01 14:47:20 bjornw
    -*! Added support for /dev/rtc operations with ioctl RD_TIME and SET_TIME to read
    -*! and set the date. Register as major 121.
    -*!
    -*! Revision 1.1 1999/09/01 09:45:29 bjornw
    -*! Implemented a DS1302 RTC driver.
    -*!
    -*!
    -*! ---------------------------------------------------------------------------
    -*!
    -*! (C) Copyright 1999, 2000, 2001 Axis Communications AB, LUND, SWEDEN
    -*!
    -*! $Id: ds1302.c,v 1.2 2003/10/29 08:42:58 fujiwara Exp $
    -*!
    -*!***************************************************************************/
    -
    -#include <linux/config.h>
    -
    -#include <linux/fs.h>
    -#include <linux/init.h>
    -#include <linux/mm.h>
    -#include <linux/module.h>
    -#include <linux/miscdevice.h>
    -#include <linux/delay.h>
    -#include <linux/bcd.h>
    -
    -#include <asm/uaccess.h>
    -#include <asm/system.h>
    -#include <asm/io.h>
    -#include <asm/rtc.h>
    -#include <asm/m32r.h>
    -
    -#define RTC_MAJOR_NR 121 /* local major, change later */
    -
    -static const char ds1302_name[] = "ds1302";
    -
    -/* Send 8 bits. */
    -static void
    -out_byte_rtc(unsigned int reg_addr, unsigned char x)
    -{
    - //RST H
    - outw(0x0001,(unsigned long)PLD_RTCRSTODT);
    - //write data
    - outw(((x<<8)|(reg_addr&0xff)),(unsigned long)PLD_RTCWRDATA);
    - //WE
    - outw(0x0002,(unsigned long)PLD_RTCCR);
    - //wait
    - while(inw((unsigned long)PLD_RTCCR));
    -
    - //RST L
    - outw(0x0000,(unsigned long)PLD_RTCRSTODT);
    -
    -}
    -
    -static unsigned char
    -in_byte_rtc(unsigned int reg_addr)
    -{
    - unsigned char retval;
    -
    - //RST H
    - outw(0x0001,(unsigned long)PLD_RTCRSTODT);
    - //write data
    - outw((reg_addr&0xff),(unsigned long)PLD_RTCRDDATA);
    - //RE
    - outw(0x0001,(unsigned long)PLD_RTCCR);
    - //wait
    - while(inw((unsigned long)PLD_RTCCR));
    -
    - //read data
    - retval=(inw((unsigned long)PLD_RTCRDDATA) & 0xff00)>>8;
    -
    - //RST L
    - outw(0x0000,(unsigned long)PLD_RTCRSTODT);
    -
    - return retval;
    -}
    -
    -/* Enable writing. */
    -
    -static void
    -ds1302_wenable(void)
    -{
    - out_byte_rtc(0x8e,0x00);
    -}
    -
    -/* Disable writing. */
    -
    -static void
    -ds1302_wdisable(void)
    -{
    - out_byte_rtc(0x8e,0x80);
    -}
    -
    -
    -
    -/* Read a byte from the selected register in the DS1302. */
    -
    -unsigned char
    -ds1302_readreg(int reg)
    -{
    - unsigned char x;
    -
    - x=in_byte_rtc((0x81 | (reg << 1))); /* read register */
    -
    - return x;
    -}
    -
    -/* Write a byte to the selected register. */
    -
    -void
    -ds1302_writereg(int reg, unsigned char val)
    -{
    - ds1302_wenable();
    - out_byte_rtc((0x80 | (reg << 1)),val);
    - ds1302_wdisable();
    -}
    -
    -void
    -get_rtc_time(struct rtc_time *rtc_tm)
    -{
    - unsigned long flags;
    -
    - local_irq_save(flags);
    - local_irq_disable();
    -
    - rtc_tm->tm_sec = CMOS_READ(RTC_SECONDS);
    - rtc_tm->tm_min = CMOS_READ(RTC_MINUTES);
    - rtc_tm->tm_hour = CMOS_READ(RTC_HOURS);
    - rtc_tm->tm_mday = CMOS_READ(RTC_DAY_OF_MONTH);
    - rtc_tm->tm_mon = CMOS_READ(RTC_MONTH);
    - rtc_tm->tm_year = CMOS_READ(RTC_YEAR);
    -
    - local_irq_restore(flags);
    -
    - BCD_TO_BIN(rtc_tm->tm_sec);
    - BCD_TO_BIN(rtc_tm->tm_min);
    - BCD_TO_BIN(rtc_tm->tm_hour);
    - BCD_TO_BIN(rtc_tm->tm_mday);
    - BCD_TO_BIN(rtc_tm->tm_mon);
    - BCD_TO_BIN(rtc_tm->tm_year);
    -
    - /*
    - * Account for differences between how the RTC uses the values
    - * and how they are defined in a struct rtc_time;
    - */
    -
    - if (rtc_tm->tm_year <= 69)
    - rtc_tm->tm_year += 100;
    -
    - rtc_tm->tm_mon--;
    -}
    -
    -static unsigned char days_in_mo[] =
    - {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
    -
    -/* ioctl that supports RTC_RD_TIME and RTC_SET_TIME (read and set time/date). */
    -
    -static int
    -rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
    - unsigned long arg)
    -{
    - unsigned long flags;
    -
    - switch(cmd) {
    - case RTC_RD_TIME: /* read the time/date from RTC */
    - {
    - struct rtc_time rtc_tm;
    -
    - memset(&rtc_tm, 0, sizeof (struct rtc_time));
    - get_rtc_time(&rtc_tm);
    - if (copy_to_user((struct rtc_time*)arg, &rtc_tm, sizeof(struct rtc_time)))
    - return -EFAULT;
    - return 0;
    - }
    -
    - case RTC_SET_TIME: /* set the RTC */
    - {
    - struct rtc_time rtc_tm;
    - unsigned char mon, day, hrs, min, sec, leap_yr;
    - unsigned int yrs;
    -
    - if (!capable(CAP_SYS_TIME))
    - return -EPERM;
    -
    - if (copy_from_user(&rtc_tm, (struct rtc_time*)arg, sizeof(struct rtc_time)))
    - return -EFAULT;
    -
    - yrs = rtc_tm.tm_year + 1900;
    - mon = rtc_tm.tm_mon + 1; /* tm_mon starts at zero */
    - day = rtc_tm.tm_mday;
    - hrs = rtc_tm.tm_hour;
    - min = rtc_tm.tm_min;
    - sec = rtc_tm.tm_sec;
    -
    -
    - if ((yrs < 1970) || (yrs > 2069))
    - return -EINVAL;
    -
    - leap_yr = ((!(yrs % 4) && (yrs % 100)) || !(yrs % 400));
    -
    - if ((mon > 12) || (day == 0))
    - return -EINVAL;
    -
    - if (day > (days_in_mo[mon] + ((mon == 2) && leap_yr)))
    - return -EINVAL;
    -
    - if ((hrs >= 24) || (min >= 60) || (sec >= 60))
    - return -EINVAL;
    -
    - if (yrs >= 2000)
    - yrs -= 2000; /* RTC (0, 1, ... 69) */
    - else
    - yrs -= 1900; /* RTC (70, 71, ... 99) */
    -
    - BIN_TO_BCD(sec);
    - BIN_TO_BCD(min);
    - BIN_TO_BCD(hrs);
    - BIN_TO_BCD(day);
    - BIN_TO_BCD(mon);
    - BIN_TO_BCD(yrs);
    -
    - local_irq_save(flags);
    - local_irq_disable();
    - CMOS_WRITE(yrs, RTC_YEAR);
    - CMOS_WRITE(mon, RTC_MONTH);
    - CMOS_WRITE(day, RTC_DAY_OF_MONTH);
    - CMOS_WRITE(hrs, RTC_HOURS);
    - CMOS_WRITE(min, RTC_MINUTES);
    - CMOS_WRITE(sec, RTC_SECONDS);
    - local_irq_restore(flags);
    -
    - /* Notice that at this point, the RTC is updated but
    - * the kernel is still running with the old time.
    - * You need to set that separately with settimeofday
    - * or adjtimex.
    - */
    - return 0;
    - }
    -
    - case RTC_SET_CHARGE: /* set the RTC TRICKLE CHARGE register */
    - {
    - int tcs_val;
    -
    - if (!capable(CAP_SYS_TIME))
    - return -EPERM;
    -
    - if(copy_from_user(&tcs_val, (int*)arg, sizeof(int)))
    - return -EFAULT;
    -
    - tcs_val = RTC_TCR_PATTERN | (tcs_val & 0x0F);
    - ds1302_writereg(RTC_TRICKLECHARGER, tcs_val);
    - return 0;
    - }
    - default:
    - return -EINVAL;
    - }
    -}
    -
    -int
    -get_rtc_status(char *buf)
    -{
    - char *p;
    - struct rtc_time tm;
    -
    - p = buf;
    -
    - get_rtc_time(&tm);
    -
    - /*
    - * There is no way to tell if the luser has the RTC set for local
    - * time or for Universal Standard Time (GMT). Probably local though.
    - */
    -
    - p += sprintf(p,
    - "rtc_time\t: %02d:%02d:%02d\n"
    - "rtc_date\t: %04d-%02d-%02d\n",
    - tm.tm_hour, tm.tm_min, tm.tm_sec,
    - tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday);
    -
    - return p - buf;
    -}
    -
    -
    -/* The various file operations we support. */
    -
    -static struct file_operations rtc_fops = {
    - .owner = THIS_MODULE,
    - .ioctl = rtc_ioctl,
    -};
    -
    -/* Probe for the chip by writing something to its RAM and try reading it back. */
    -
    -#define MAGIC_PATTERN 0x42
    -
    -static int __init
    -ds1302_probe(void)
    -{
    - int retval, res, baur;
    -
    - baur=(boot_cpu_data.bus_clock/(2*1000*1000));
    -
    - printk("%s: Set PLD_RTCBAUR = %d\n", ds1302_name,baur);
    -
    - outw(0x0000,(unsigned long)PLD_RTCCR);
    - outw(0x0000,(unsigned long)PLD_RTCRSTODT);
    - outw(baur,(unsigned long)PLD_RTCBAUR);
    -
    - /* Try to talk to timekeeper. */
    -
    - ds1302_wenable();
    - /* write RAM byte 0 */
    - /* write something magic */
    - out_byte_rtc(0xc0,MAGIC_PATTERN);
    -
    - /* read RAM byte 0 */
    - if((res = in_byte_rtc(0xc1)) == MAGIC_PATTERN) {
    - char buf[100];
    - ds1302_wdisable();
    - printk("%s: RTC found.\n", ds1302_name);
    - get_rtc_status(buf);
    - printk(buf);
    - retval = 1;
    - } else {
    - printk("%s: RTC not found.\n", ds1302_name);
    - retval = 0;
    - }
    -
    - return retval;
    -}
    -
    -
    -/* Just probe for the RTC and register the device to handle the ioctl needed. */
    -
    -int __init
    -ds1302_init(void)
    -{
    - if (!ds1302_probe()) {
    - return -1;
    - }
    - return 0;
    -}
    -
    -static int __init ds1302_register(void)
    -{
    - ds1302_init();
    - if (register_chrdev(RTC_MAJOR_NR, ds1302_name, &rtc_fops)) {
    - printk(KERN_INFO "%s: unable to get major %d for rtc\n",
    - ds1302_name, RTC_MAJOR_NR);
    - return -1;
    - }
    - return 0;
    -}
    -
    -module_init(ds1302_register);
    --
    Hirokazu Takata <takata@linux-m32r.org>
    Linux/M32R Project: http://www.linux-m32r.org/
    -
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