diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/sparc/kernel/time_32.c')
| -rw-r--r-- | ANDROID_3.4.5/arch/sparc/kernel/time_32.c | 248 |
1 files changed, 0 insertions, 248 deletions
diff --git a/ANDROID_3.4.5/arch/sparc/kernel/time_32.c b/ANDROID_3.4.5/arch/sparc/kernel/time_32.c deleted file mode 100644 index 7d0c088e..00000000 --- a/ANDROID_3.4.5/arch/sparc/kernel/time_32.c +++ /dev/null @@ -1,248 +0,0 @@ -/* linux/arch/sparc/kernel/time.c - * - * Copyright (C) 1995 David S. Miller (davem@davemloft.net) - * Copyright (C) 1996 Thomas K. Dyas (tdyas@eden.rutgers.edu) - * - * Chris Davis (cdavis@cois.on.ca) 03/27/1998 - * Added support for the intersil on the sun4/4200 - * - * Gleb Raiko (rajko@mech.math.msu.su) 08/18/1998 - * Support for MicroSPARC-IIep, PCI CPU. - * - * This file handles the Sparc specific time handling details. - * - * 1997-09-10 Updated NTP code according to technical memorandum Jan '96 - * "A Kernel Model for Precision Timekeeping" by Dave Mills - */ -#include <linux/errno.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/interrupt.h> -#include <linux/time.h> -#include <linux/rtc.h> -#include <linux/rtc/m48t59.h> -#include <linux/timex.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/ioport.h> -#include <linux/profile.h> -#include <linux/of.h> -#include <linux/of_device.h> -#include <linux/platform_device.h> - -#include <asm/oplib.h> -#include <asm/timex.h> -#include <asm/timer.h> -#include <asm/irq.h> -#include <asm/io.h> -#include <asm/idprom.h> -#include <asm/machines.h> -#include <asm/page.h> -#include <asm/pcic.h> -#include <asm/irq_regs.h> - -#include "irq.h" - -DEFINE_SPINLOCK(rtc_lock); -EXPORT_SYMBOL(rtc_lock); - -static int set_rtc_mmss(unsigned long); - -unsigned long profile_pc(struct pt_regs *regs) -{ - extern char __copy_user_begin[], __copy_user_end[]; - extern char __atomic_begin[], __atomic_end[]; - extern char __bzero_begin[], __bzero_end[]; - - unsigned long pc = regs->pc; - - if (in_lock_functions(pc) || - (pc >= (unsigned long) __copy_user_begin && - pc < (unsigned long) __copy_user_end) || - (pc >= (unsigned long) __atomic_begin && - pc < (unsigned long) __atomic_end) || - (pc >= (unsigned long) __bzero_begin && - pc < (unsigned long) __bzero_end)) - pc = regs->u_regs[UREG_RETPC]; - return pc; -} - -EXPORT_SYMBOL(profile_pc); - -__volatile__ unsigned int *master_l10_counter; - -u32 (*do_arch_gettimeoffset)(void); - -int update_persistent_clock(struct timespec now) -{ - return set_rtc_mmss(now.tv_sec); -} - -/* - * timer_interrupt() needs to keep up the real-time clock, - * as well as call the "xtime_update()" routine every clocktick - */ - -#define TICK_SIZE (tick_nsec / 1000) - -static irqreturn_t timer_interrupt(int dummy, void *dev_id) -{ -#ifndef CONFIG_SMP - profile_tick(CPU_PROFILING); -#endif - - clear_clock_irq(); - - xtime_update(1); - -#ifndef CONFIG_SMP - update_process_times(user_mode(get_irq_regs())); -#endif - return IRQ_HANDLED; -} - -static unsigned char mostek_read_byte(struct device *dev, u32 ofs) -{ - struct platform_device *pdev = to_platform_device(dev); - struct m48t59_plat_data *pdata = pdev->dev.platform_data; - - return readb(pdata->ioaddr + ofs); -} - -static void mostek_write_byte(struct device *dev, u32 ofs, u8 val) -{ - struct platform_device *pdev = to_platform_device(dev); - struct m48t59_plat_data *pdata = pdev->dev.platform_data; - - writeb(val, pdata->ioaddr + ofs); -} - -static struct m48t59_plat_data m48t59_data = { - .read_byte = mostek_read_byte, - .write_byte = mostek_write_byte, -}; - -/* resource is set at runtime */ -static struct platform_device m48t59_rtc = { - .name = "rtc-m48t59", - .id = 0, - .num_resources = 1, - .dev = { - .platform_data = &m48t59_data, - }, -}; - -static int __devinit clock_probe(struct platform_device *op) -{ - struct device_node *dp = op->dev.of_node; - const char *model = of_get_property(dp, "model", NULL); - - if (!model) - return -ENODEV; - - /* Only the primary RTC has an address property */ - if (!of_find_property(dp, "address", NULL)) - return -ENODEV; - - m48t59_rtc.resource = &op->resource[0]; - if (!strcmp(model, "mk48t02")) { - /* Map the clock register io area read-only */ - m48t59_data.ioaddr = of_ioremap(&op->resource[0], 0, - 2048, "rtc-m48t59"); - m48t59_data.type = M48T59RTC_TYPE_M48T02; - } else if (!strcmp(model, "mk48t08")) { - m48t59_data.ioaddr = of_ioremap(&op->resource[0], 0, - 8192, "rtc-m48t59"); - m48t59_data.type = M48T59RTC_TYPE_M48T08; - } else - return -ENODEV; - - if (platform_device_register(&m48t59_rtc) < 0) - printk(KERN_ERR "Registering RTC device failed\n"); - - return 0; -} - -static struct of_device_id clock_match[] = { - { - .name = "eeprom", - }, - {}, -}; - -static struct platform_driver clock_driver = { - .probe = clock_probe, - .driver = { - .name = "rtc", - .owner = THIS_MODULE, - .of_match_table = clock_match, - }, -}; - - -/* Probe for the mostek real time clock chip. */ -static int __init clock_init(void) -{ - return platform_driver_register(&clock_driver); -} -/* Must be after subsys_initcall() so that busses are probed. Must - * be before device_initcall() because things like the RTC driver - * need to see the clock registers. - */ -fs_initcall(clock_init); - - -u32 sbus_do_gettimeoffset(void) -{ - unsigned long val = *master_l10_counter; - unsigned long usec = (val >> 10) & 0x1fffff; - - /* Limit hit? */ - if (val & 0x80000000) - usec += 1000000 / HZ; - - return usec * 1000; -} - - -u32 arch_gettimeoffset(void) -{ - if (unlikely(!do_arch_gettimeoffset)) - return 0; - return do_arch_gettimeoffset(); -} - -static void __init sbus_time_init(void) -{ - do_arch_gettimeoffset = sbus_do_gettimeoffset; - - btfixup(); - - sparc_irq_config.init_timers(timer_interrupt); -} - -void __init time_init(void) -{ - if (pcic_present()) - pci_time_init(); - else - sbus_time_init(); -} - - -static int set_rtc_mmss(unsigned long secs) -{ - struct rtc_device *rtc = rtc_class_open("rtc0"); - int err = -1; - - if (rtc) { - err = rtc_set_mmss(rtc, secs); - rtc_class_close(rtc); - } - - return err; -} |