forked from luck/tmp_suning_uos_patched
d7de1c3af1
Commit 397ac99c6c ("m68k: remove dead timer code") removed set_rtc_mmss()
because it was unused in 2012. However, this was itself the only user of the
mach_set_clock_mmss() callback and the many implementations of that callback,
which are equally unused.
This removes all of those as well.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Greg Ungerer <gerg@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
165 lines
4.0 KiB
C
165 lines
4.0 KiB
C
/*
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* arch/m68k/mvme147/config.c
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*
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* Copyright (C) 1996 Dave Frascone [chaos@mindspring.com]
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* Cloned from Richard Hirst [richard@sleepie.demon.co.uk]
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*
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* Based on:
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*
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* Copyright (C) 1993 Hamish Macdonald
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file README.legal in the main directory of this archive
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* for more details.
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*/
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/mm.h>
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#include <linux/tty.h>
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#include <linux/console.h>
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#include <linux/linkage.h>
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#include <linux/init.h>
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#include <linux/major.h>
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#include <linux/genhd.h>
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#include <linux/rtc.h>
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#include <linux/interrupt.h>
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#include <asm/bootinfo.h>
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#include <asm/bootinfo-vme.h>
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#include <asm/byteorder.h>
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#include <asm/pgtable.h>
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#include <asm/setup.h>
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#include <asm/irq.h>
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#include <asm/traps.h>
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#include <asm/machdep.h>
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#include <asm/mvme147hw.h>
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static void mvme147_get_model(char *model);
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extern void mvme147_sched_init(irq_handler_t handler);
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extern u32 mvme147_gettimeoffset(void);
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extern int mvme147_hwclk (int, struct rtc_time *);
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extern void mvme147_reset (void);
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static int bcd2int (unsigned char b);
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/* Save tick handler routine pointer, will point to xtime_update() in
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* kernel/time/timekeeping.c, called via mvme147_process_int() */
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irq_handler_t tick_handler;
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int __init mvme147_parse_bootinfo(const struct bi_record *bi)
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{
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uint16_t tag = be16_to_cpu(bi->tag);
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if (tag == BI_VME_TYPE || tag == BI_VME_BRDINFO)
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return 0;
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else
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return 1;
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}
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void mvme147_reset(void)
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{
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pr_info("\r\n\nCalled mvme147_reset\r\n");
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m147_pcc->watchdog = 0x0a; /* Clear timer */
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m147_pcc->watchdog = 0xa5; /* Enable watchdog - 100ms to reset */
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while (1)
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;
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}
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static void mvme147_get_model(char *model)
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{
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sprintf(model, "Motorola MVME147");
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}
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/*
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* This function is called during kernel startup to initialize
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* the mvme147 IRQ handling routines.
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*/
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void __init mvme147_init_IRQ(void)
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{
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m68k_setup_user_interrupt(VEC_USER, 192);
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}
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void __init config_mvme147(void)
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{
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mach_max_dma_address = 0x01000000;
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mach_sched_init = mvme147_sched_init;
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mach_init_IRQ = mvme147_init_IRQ;
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arch_gettimeoffset = mvme147_gettimeoffset;
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mach_hwclk = mvme147_hwclk;
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mach_reset = mvme147_reset;
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mach_get_model = mvme147_get_model;
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/* Board type is only set by newer versions of vmelilo/tftplilo */
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if (!vme_brdtype)
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vme_brdtype = VME_TYPE_MVME147;
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}
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/* Using pcc tick timer 1 */
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static irqreturn_t mvme147_timer_int (int irq, void *dev_id)
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{
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m147_pcc->t1_int_cntrl = PCC_TIMER_INT_CLR;
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m147_pcc->t1_int_cntrl = PCC_INT_ENAB|PCC_LEVEL_TIMER1;
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return tick_handler(irq, dev_id);
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}
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void mvme147_sched_init (irq_handler_t timer_routine)
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{
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tick_handler = timer_routine;
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if (request_irq(PCC_IRQ_TIMER1, mvme147_timer_int, 0, "timer 1", NULL))
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pr_err("Couldn't register timer interrupt\n");
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/* Init the clock with a value */
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/* our clock goes off every 6.25us */
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m147_pcc->t1_preload = PCC_TIMER_PRELOAD;
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m147_pcc->t1_cntrl = 0x0; /* clear timer */
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m147_pcc->t1_cntrl = 0x3; /* start timer */
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m147_pcc->t1_int_cntrl = PCC_TIMER_INT_CLR; /* clear pending ints */
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m147_pcc->t1_int_cntrl = PCC_INT_ENAB|PCC_LEVEL_TIMER1;
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}
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/* This is always executed with interrupts disabled. */
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/* XXX There are race hazards in this code XXX */
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u32 mvme147_gettimeoffset(void)
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{
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volatile unsigned short *cp = (volatile unsigned short *)0xfffe1012;
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unsigned short n;
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n = *cp;
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while (n != *cp)
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n = *cp;
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n -= PCC_TIMER_PRELOAD;
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return ((unsigned long)n * 25 / 4) * 1000;
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}
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static int bcd2int (unsigned char b)
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{
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return ((b>>4)*10 + (b&15));
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}
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int mvme147_hwclk(int op, struct rtc_time *t)
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{
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#warning check me!
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if (!op) {
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m147_rtc->ctrl = RTC_READ;
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t->tm_year = bcd2int (m147_rtc->bcd_year);
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t->tm_mon = bcd2int(m147_rtc->bcd_mth) - 1;
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t->tm_mday = bcd2int (m147_rtc->bcd_dom);
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t->tm_hour = bcd2int (m147_rtc->bcd_hr);
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t->tm_min = bcd2int (m147_rtc->bcd_min);
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t->tm_sec = bcd2int (m147_rtc->bcd_sec);
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m147_rtc->ctrl = 0;
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if (t->tm_year < 70)
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t->tm_year += 100;
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}
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return 0;
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}
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