--- /dev/null
+/*
+ * linux/arch/sh/boards/sh03/rtc.c -- CTP/PCI-SH03 on-chip RTC support
+ *
+ * Copyright (C) 2004 Saito.K & Jeanne(ksaito@interface.co.jp)
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/time.h>
+#include <asm/io.h>
+#include <linux/rtc.h>
+#include <linux/spinlock.h>
+
+#define RTC_BASE 0xb0000000
+#define RTC_SEC1 (RTC_BASE + 0)
+#define RTC_SEC10 (RTC_BASE + 1)
+#define RTC_MIN1 (RTC_BASE + 2)
+#define RTC_MIN10 (RTC_BASE + 3)
+#define RTC_HOU1 (RTC_BASE + 4)
+#define RTC_HOU10 (RTC_BASE + 5)
+#define RTC_WEE1 (RTC_BASE + 6)
+#define RTC_DAY1 (RTC_BASE + 7)
+#define RTC_DAY10 (RTC_BASE + 8)
+#define RTC_MON1 (RTC_BASE + 9)
+#define RTC_MON10 (RTC_BASE + 10)
+#define RTC_YEA1 (RTC_BASE + 11)
+#define RTC_YEA10 (RTC_BASE + 12)
+#define RTC_YEA100 (RTC_BASE + 13)
+#define RTC_YEA1000 (RTC_BASE + 14)
+#define RTC_CTL (RTC_BASE + 15)
+#define RTC_BUSY 1
+#define RTC_STOP 2
+
+#ifndef BCD_TO_BIN
+#define BCD_TO_BIN(val) ((val)=((val)&15) + ((val)>>4)*10)
+#endif
+
+#ifndef BIN_TO_BCD
+#define BIN_TO_BCD(val) ((val)=(((val)/10)<<4) + (val)%10)
+#endif
+
+extern void (*rtc_get_time)(struct timespec *);
+extern int (*rtc_set_time)(const time_t);
+extern spinlock_t rtc_lock;
+
+unsigned long get_cmos_time(void)
+{
+ unsigned int year, mon, day, hour, min, sec;
+ int i;
+
+ spin_lock(&rtc_lock);
+ again:
+ for (i = 0 ; i < 1000000 ; i++) /* may take up to 1 second... */
+ if (!(ctrl_inb(RTC_CTL) & RTC_BUSY))
+ break;
+ do {
+ sec = (ctrl_inb(RTC_SEC1) & 0xf) + (ctrl_inb(RTC_SEC10) & 0x7) * 10;
+ min = (ctrl_inb(RTC_MIN1) & 0xf) + (ctrl_inb(RTC_MIN10) & 0xf) * 10;
+ hour = (ctrl_inb(RTC_HOU1) & 0xf) + (ctrl_inb(RTC_HOU10) & 0xf) * 10;
+ day = (ctrl_inb(RTC_DAY1) & 0xf) + (ctrl_inb(RTC_DAY10) & 0xf) * 10;
+ mon = (ctrl_inb(RTC_MON1) & 0xf) + (ctrl_inb(RTC_MON10) & 0xf) * 10;
+ year = (ctrl_inb(RTC_YEA1) & 0xf) + (ctrl_inb(RTC_YEA10) & 0xf) * 10
+ + (ctrl_inb(RTC_YEA100 ) & 0xf) * 100
+ + (ctrl_inb(RTC_YEA1000) & 0xf) * 1000;
+ } while (sec != (ctrl_inb(RTC_SEC1) & 0xf) + (ctrl_inb(RTC_SEC10) & 0x7) * 10);
+ if (year == 0 || mon < 1 || mon > 12 || day > 31 || day < 1 ||
+ hour > 23 || min > 59 || sec > 59) {
+ printk(KERN_ERR
+ "SH-03 RTC: invalid value, resetting to 1 Jan 2000\n");
+ printk("year=%d, mon=%d, day=%d, hour=%d, min=%d, sec=%d\n",
+ year, mon, day, hour, min, sec);
+
+ ctrl_outb(0, RTC_SEC1); ctrl_outb(0, RTC_SEC10);
+ ctrl_outb(0, RTC_MIN1); ctrl_outb(0, RTC_MIN10);
+ ctrl_outb(0, RTC_HOU1); ctrl_outb(0, RTC_HOU10);
+ ctrl_outb(6, RTC_WEE1);
+ ctrl_outb(1, RTC_DAY1); ctrl_outb(0, RTC_DAY10);
+ ctrl_outb(1, RTC_MON1); ctrl_outb(0, RTC_MON10);
+ ctrl_outb(0, RTC_YEA1); ctrl_outb(0, RTC_YEA10);
+ ctrl_outb(0, RTC_YEA100);
+ ctrl_outb(2, RTC_YEA1000);
+ ctrl_outb(0, RTC_CTL);
+ goto again;
+ }
+
+ spin_unlock(&rtc_lock);
+ return mktime(year, mon, day, hour, min, sec);
+}
+
+void sh03_rtc_gettimeofday(struct timespec *tv)
+{
+
+ tv->tv_sec = get_cmos_time();
+ tv->tv_nsec = 0;
+}
+
+static int set_rtc_mmss(unsigned long nowtime)
+{
+ int retval = 0;
+ int real_seconds, real_minutes, cmos_minutes;
+ int i;
+
+ /* gets recalled with irq locally disabled */
+ spin_lock(&rtc_lock);
+ for (i = 0 ; i < 1000000 ; i++) /* may take up to 1 second... */
+ if (!(ctrl_inb(RTC_CTL) & RTC_BUSY))
+ break;
+ cmos_minutes = (ctrl_inb(RTC_MIN1) & 0xf) + (ctrl_inb(RTC_MIN10) & 0xf) * 10;
+ real_seconds = nowtime % 60;
+ real_minutes = nowtime / 60;
+ if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1)
+ real_minutes += 30; /* correct for half hour time zone */
+ real_minutes %= 60;
+
+ if (abs(real_minutes - cmos_minutes) < 30) {
+ BIN_TO_BCD(real_seconds);
+ BIN_TO_BCD(real_minutes);
+ ctrl_outb(real_seconds % 10, RTC_SEC1);
+ ctrl_outb(real_seconds / 10, RTC_SEC10);
+ ctrl_outb(real_minutes % 10, RTC_MIN1);
+ ctrl_outb(real_minutes / 10, RTC_MIN10);
+ } else {
+ printk(KERN_WARNING
+ "set_rtc_mmss: can't update from %d to %d\n",
+ cmos_minutes, real_minutes);
+ retval = -1;
+ }
+ spin_unlock(&rtc_lock);
+
+ return retval;
+}
+
+int sh03_rtc_settimeofday(const time_t secs)
+{
+ unsigned long nowtime = secs;
+
+ return set_rtc_mmss(nowtime);
+}
+
+void sh03_time_init(void)
+{
+ rtc_get_time = sh03_rtc_gettimeofday;
+ rtc_set_time = sh03_rtc_settimeofday;
+}
--- /dev/null
+/*
+ * linux/arch/sh/boards/sh03/setup.c
+ *
+ * Copyright (C) 2004 Interface Co.,Ltd. Saito.K
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/hdreg.h>
+#include <linux/ide.h>
+#include <asm/io.h>
+#include <asm/sh03/io.h>
+#include <asm/sh03/sh03.h>
+#include <asm/addrspace.h>
+#include "../../drivers/pci/pci-sh7751.h"
+
+extern void (*board_time_init)(void);
+
+const char *get_system_type(void)
+{
+ return "Interface CTP/PCI-SH03)";
+}
+
+void init_sh03_IRQ(void)
+{
+ ctrl_outw(ctrl_inw(INTC_ICR) | INTC_ICR_IRLM, INTC_ICR);
+
+ make_ipr_irq(IRL0_IRQ, IRL0_IPR_ADDR, IRL0_IPR_POS, IRL0_PRIORITY);
+ make_ipr_irq(IRL1_IRQ, IRL1_IPR_ADDR, IRL1_IPR_POS, IRL1_PRIORITY);
+ make_ipr_irq(IRL2_IRQ, IRL2_IPR_ADDR, IRL2_IPR_POS, IRL2_PRIORITY);
+ make_ipr_irq(IRL3_IRQ, IRL3_IPR_ADDR, IRL3_IPR_POS, IRL3_PRIORITY);
+}
+
+extern void *cf_io_base;
+
+unsigned long sh03_isa_port2addr(unsigned long port)
+{
+ if (PXSEG(port))
+ return port;
+ /* CompactFlash (IDE) */
+ if (((port >= 0x1f0) && (port <= 0x1f7)) || (port == 0x3f6)) {
+ return (unsigned long)cf_io_base + port;
+ }
+ return port + SH7751_PCI_IO_BASE;
+}
+
+/*
+ * The Machine Vector
+ */
+
+struct sh_machine_vector mv_sh03 __initmv = {
+ .mv_nr_irqs = 48,
+ .mv_isa_port2addr = sh03_isa_port2addr,
+ .mv_init_irq = init_sh03_IRQ,
+
+#ifdef CONFIG_HEARTBEAT
+ .mv_heartbeat = heartbeat_sh03,
+#endif
+};
+
+ALIAS_MV(sh03)
+
+/* arch/sh/boards/sh03/rtc.c */
+void sh03_time_init(void);
+
+int __init platform_setup(void)
+{
+ board_time_init = sh03_time_init;
+ return 0;
+}
projects / linux / commitdiff