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Diffstat (limited to 'arch/mips/alchemy/common/time.c')
-rw-r--r--arch/mips/alchemy/common/time.c35
1 files changed, 30 insertions, 5 deletions
diff --git a/arch/mips/alchemy/common/time.c b/arch/mips/alchemy/common/time.c
index 379a664..2aecb2f 100644
--- a/arch/mips/alchemy/common/time.c
+++ b/arch/mips/alchemy/common/time.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2008 Manuel Lauss <mano@roarinelk.homelinux.net>
+ * Copyright (C) 2008-2009 Manuel Lauss <manuel.lauss@gmail.com>
*
* Previous incarnations were:
* Copyright (C) 2001, 2006, 2008 MontaVista Software, <source@mvista.com>
@@ -85,7 +85,6 @@ static struct clock_event_device au1x_rtcmatch2_clockdev = {
.name = "rtcmatch2",
.features = CLOCK_EVT_FEAT_ONESHOT,
.rating = 100,
- .irq = AU1000_RTC_MATCH2_INT,
.set_next_event = au1x_rtcmatch2_set_next_event,
.set_mode = au1x_rtcmatch2_set_mode,
.cpumask = cpu_all_mask,
@@ -98,11 +97,13 @@ static struct irqaction au1x_rtcmatch2_irqaction = {
.dev_id = &au1x_rtcmatch2_clockdev,
};
-void __init plat_time_init(void)
+static int __init alchemy_time_init(unsigned int m2int)
{
struct clock_event_device *cd = &au1x_rtcmatch2_clockdev;
unsigned long t;
+ au1x_rtcmatch2_clockdev.irq = m2int;
+
/* Check if firmware (YAMON, ...) has enabled 32kHz and clock
* has been detected. If so install the rtcmatch2 clocksource,
* otherwise don't bother. Note that both bits being set is by
@@ -148,13 +149,18 @@ void __init plat_time_init(void)
cd->max_delta_ns = clockevent_delta2ns(0xffffffff, cd);
cd->min_delta_ns = clockevent_delta2ns(8, cd); /* ~0.25ms */
clockevents_register_device(cd);
- setup_irq(AU1000_RTC_MATCH2_INT, &au1x_rtcmatch2_irqaction);
+ setup_irq(m2int, &au1x_rtcmatch2_irqaction);
printk(KERN_INFO "Alchemy clocksource installed\n");
- return;
+ return 0;
cntr_err:
+ return -1;
+}
+
+static void __init alchemy_setup_c0timer(void)
+{
/*
* MIPS kernel assigns 'au1k_wait' to 'cpu_wait' before this
* function is called. Because the Alchemy counters are unusable
@@ -166,3 +172,22 @@ cntr_err:
r4k_clockevent_init();
init_r4k_clocksource();
}
+
+static int alchemy_m2inttab[] __initdata = {
+ AU1000_RTC_MATCH2_INT,
+ AU1500_RTC_MATCH2_INT,
+ AU1100_RTC_MATCH2_INT,
+ AU1550_RTC_MATCH2_INT,
+ AU1200_RTC_MATCH2_INT,
+};
+
+void __init plat_time_init(void)
+{
+ int t;
+
+ t = alchemy_get_cputype();
+ if (t == ALCHEMY_CPU_UNKNOWN)
+ alchemy_setup_c0timer();
+ else if (alchemy_time_init(alchemy_m2inttab[t]))
+ alchemy_setup_c0timer();
+}