#include <asm/oplib.h>
#include <asm/prom.h>
#include <asm/pcic.h>
+#include <asm/timex.h>
#include <asm/timer.h>
#include <asm/uaccess.h>
#include <asm/irq_regs.h>
volatile int pcic_speculative;
volatile int pcic_trapped;
-static void pci_do_gettimeofday(struct timeval *tv);
-static int pci_do_settimeofday(struct timespec *tv);
#define CONFIG_CMD(bus, device_fn, where) (0x80000000 | (((unsigned int)bus) << 16) | (((unsigned int)device_fn) << 8) | (where & ~3))
writew(ivec, pcic->pcic_regs+PCI_INT_SELECT_LO);
}
}
-
- return;
}
/*
#define USECS_PER_JIFFY 10000 /* We have 100HZ "standard" timer for sparc */
#define TICK_TIMER_LIMIT ((100*1000000/4)/100)
+u32 pci_gettimeoffset(void)
+{
+ /*
+ * We divide all by 100
+ * to have microsecond resolution and to avoid overflow
+ */
+ unsigned long count =
+ readl(pcic0.pcic_regs+PCI_SYS_COUNTER) & ~PCI_SYS_COUNTER_OVERFLOW;
+ count = ((count/100)*USECS_PER_JIFFY) / (TICK_TIMER_LIMIT/100);
+ return count * 1000;
+}
+
+
void __init pci_time_init(void)
{
struct linux_pcic *pcic = &pcic0;
unsigned long v;
int timer_irq, irq;
- /* A hack until do_gettimeofday prototype is moved to arch specific headers
- and btfixupped. Patch do_gettimeofday with ba pci_do_gettimeofday; nop */
- ((unsigned int *)do_gettimeofday)[0] =
- 0x10800000 | ((((unsigned long)pci_do_gettimeofday -
- (unsigned long)do_gettimeofday) >> 2) & 0x003fffff);
- ((unsigned int *)do_gettimeofday)[1] = 0x01000000;
- BTFIXUPSET_CALL(bus_do_settimeofday, pci_do_settimeofday, BTFIXUPCALL_NORM);
+ do_arch_gettimeoffset = pci_gettimeoffset;
+
btfixup();
writel (TICK_TIMER_LIMIT, pcic->pcic_regs+PCI_SYS_LIMIT);
local_irq_enable();
}
-static inline unsigned long do_gettimeoffset(void)
-{
- /*
- * We divide all by 100
- * to have microsecond resolution and to avoid overflow
- */
- unsigned long count =
- readl(pcic0.pcic_regs+PCI_SYS_COUNTER) & ~PCI_SYS_COUNTER_OVERFLOW;
- count = ((count/100)*USECS_PER_JIFFY) / (TICK_TIMER_LIMIT/100);
- return count;
-}
-
-static void pci_do_gettimeofday(struct timeval *tv)
-{
- unsigned long flags;
- unsigned long seq;
- unsigned long usec, sec;
- unsigned long max_ntp_tick = tick_usec - tickadj;
-
- do {
- seq = read_seqbegin_irqsave(&xtime_lock, flags);
- usec = do_gettimeoffset();
-
- /*
- * If time_adjust is negative then NTP is slowing the clock
- * so make sure not to go into next possible interval.
- * Better to lose some accuracy than have time go backwards..
- */
- if (unlikely(time_adjust < 0))
- usec = min(usec, max_ntp_tick);
-
- sec = xtime.tv_sec;
- usec += (xtime.tv_nsec / 1000);
- } while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
-
- while (usec >= 1000000) {
- usec -= 1000000;
- sec++;
- }
-
- tv->tv_sec = sec;
- tv->tv_usec = usec;
-}
-
-static int pci_do_settimeofday(struct timespec *tv)
-{
- if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
- return -EINVAL;
-
- /*
- * This is revolting. We need to set "xtime" correctly. However, the
- * value in this location is the value at the most recent update of
- * wall time. Discover what correction gettimeofday() would have
- * made, and then undo it!
- */
- tv->tv_nsec -= 1000 * do_gettimeoffset();
- while (tv->tv_nsec < 0) {
- tv->tv_nsec += NSEC_PER_SEC;
- tv->tv_sec--;
- }
-
- wall_to_monotonic.tv_sec += xtime.tv_sec - tv->tv_sec;
- wall_to_monotonic.tv_nsec += xtime.tv_nsec - tv->tv_nsec;
-
- if (wall_to_monotonic.tv_nsec > NSEC_PER_SEC) {
- wall_to_monotonic.tv_nsec -= NSEC_PER_SEC;
- wall_to_monotonic.tv_sec++;
- }
- if (wall_to_monotonic.tv_nsec < 0) {
- wall_to_monotonic.tv_nsec += NSEC_PER_SEC;
- wall_to_monotonic.tv_sec--;
- }
-
- xtime.tv_sec = tv->tv_sec;
- xtime.tv_nsec = tv->tv_nsec;
- ntp_clear();
- return 0;
-}
#if 0
static void watchdog_reset() {
return str;
}
-void pcibios_align_resource(void *data, struct resource *res,
- resource_size_t size, resource_size_t align)
+resource_size_t pcibios_align_resource(void *data, const struct resource *res,
+ resource_size_t size, resource_size_t align)
{
+ return res->start;
}
int pcibios_enable_device(struct pci_dev *pdev, int mask)
/* addr += 1; */
}
}
+EXPORT_SYMBOL(outsb);
void outsw(unsigned long addr, const void *src, unsigned long count)
{
/* addr += 2; */
}
}
+EXPORT_SYMBOL(outsw);
void outsl(unsigned long addr, const void *src, unsigned long count)
{
/* addr += 4; */
}
}
+EXPORT_SYMBOL(outsl);
void insb(unsigned long addr, void *dst, unsigned long count)
{
/* addr += 1; */
}
}
+EXPORT_SYMBOL(insb);
void insw(unsigned long addr, void *dst, unsigned long count)
{
/* addr += 2; */
}
}
+EXPORT_SYMBOL(insw);
void insl(unsigned long addr, void *dst, unsigned long count)
{
/* addr += 4; */
}
}
+EXPORT_SYMBOL(insl);
subsys_initcall(pcic_init);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff