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-rw-r--r--arch/mips/alchemy/common/setup.c4
-rw-r--r--arch/mips/alchemy/common/time.c15
2 files changed, 13 insertions, 6 deletions
diff --git a/arch/mips/alchemy/common/setup.c b/arch/mips/alchemy/common/setup.c
index 3f036b3d400..6184baa5678 100644
--- a/arch/mips/alchemy/common/setup.c
+++ b/arch/mips/alchemy/common/setup.c
@@ -27,6 +27,7 @@
#include <linux/init.h>
#include <linux/ioport.h>
+#include <linux/jiffies.h>
#include <linux/module.h>
#include <linux/pm.h>
@@ -53,6 +54,9 @@ void __init plat_mem_setup(void)
printk(KERN_INFO "(PRId %08x) @ %lu.%02lu MHz\n", read_c0_prid(),
est_freq / 1000000, ((est_freq % 1000000) * 100) / 1000000);
+ /* this is faster than wasting cycles trying to approximate it */
+ preset_lpj = (est_freq >> 1) / HZ;
+
_machine_restart = au1000_restart;
_machine_halt = au1000_halt;
pm_power_off = au1000_power_off;
diff --git a/arch/mips/alchemy/common/time.c b/arch/mips/alchemy/common/time.c
index 33fbae79af5..f34ff860194 100644
--- a/arch/mips/alchemy/common/time.c
+++ b/arch/mips/alchemy/common/time.c
@@ -36,14 +36,13 @@
#include <linux/interrupt.h>
#include <linux/spinlock.h>
+#include <asm/processor.h>
#include <asm/time.h>
#include <asm/mach-au1x00/au1000.h>
/* 32kHz clock enabled and detected */
#define CNTR_OK (SYS_CNTRL_E0 | SYS_CNTRL_32S)
-extern int allow_au1k_wait; /* default off for CP0 Counter */
-
static cycle_t au1x_counter1_read(struct clocksource *cs)
{
return au_readl(SYS_RTCREAD);
@@ -153,13 +152,17 @@ void __init plat_time_init(void)
printk(KERN_INFO "Alchemy clocksource installed\n");
- /* can now use 'wait' */
- allow_au1k_wait = 1;
return;
cntr_err:
- /* counters unusable, use C0 counter */
+ /*
+ * MIPS kernel assigns 'au1k_wait' to 'cpu_wait' before this
+ * function is called. Because the Alchemy counters are unusable
+ * the C0 timekeeping code is installed and use of the 'wait'
+ * instruction must be prohibited, which is done most easily by
+ * assigning NULL to cpu_wait.
+ */
+ cpu_wait = NULL;
r4k_clockevent_init();
init_r4k_clocksource();
- allow_au1k_wait = 0;
}