From c87b6ebaea034c0e0ce86127870cf1511a307b64 Mon Sep 17 00:00:00 2001
From: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Date: Sat, 28 Oct 2006 01:14:37 +0900
Subject: [PATCH] [MIPS] mips hpt cleanup: get rid of mips_hpt_init
Currently nobody outside time.c require mips_hpt_init(). Remove it
and call c0_hpt_timer_init() directly if R4k counter was used for
timer interrupt.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
arch/mips/kernel/time.c | 22 ++++++++--------------
arch/mips/pmc-sierra/yosemite/smp.c | 2 --
include/asm-mips/time.h | 1 -
3 files changed, 8 insertions(+), 17 deletions(-)
diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c
index e535f86efa2f..111d1baa3b22 100644
--- a/arch/mips/kernel/time.c
+++ b/arch/mips/kernel/time.c
@@ -88,12 +88,6 @@ static unsigned int null_hpt_read(void)
return 0;
}
-static void __init null_hpt_init(void)
-{
- /* nothing */
-}
-
-
/*
* Timer ack for an R4k-compatible timer of a known frequency.
*/
@@ -133,7 +127,6 @@ static void __init c0_hpt_timer_init(void)
int (*mips_timer_state)(void);
void (*mips_timer_ack)(void);
unsigned int (*mips_hpt_read)(void);
-void (*mips_hpt_init)(void) __initdata = null_hpt_init;
unsigned int mips_hpt_mask = 0xffffffff;
/* last time when xtime and rtc are sync'ed up */
@@ -383,16 +376,20 @@ void __init time_init(void)
if (!mips_timer_state) {
/* No external timer interrupt -- use R4k. */
- mips_hpt_init = c0_hpt_timer_init;
mips_timer_ack = c0_timer_ack;
+ /* Calculate cache parameters. */
+ cycles_per_jiffy =
+ (mips_hpt_frequency + HZ / 2) / HZ;
+ /*
+ * This sets up the high precision
+ * timer for the first interrupt.
+ */
+ c0_hpt_timer_init();
}
}
if (!mips_hpt_frequency)
mips_hpt_frequency = calibrate_hpt();
- /* Calculate cache parameters. */
- cycles_per_jiffy = (mips_hpt_frequency + HZ / 2) / HZ;
-
/* Report the high precision timer rate for a reference. */
printk("Using %u.%03u MHz high precision timer.\n",
((mips_hpt_frequency + 500) / 1000) / 1000,
@@ -403,9 +400,6 @@ void __init time_init(void)
/* No timer interrupt ack (e.g. i8254). */
mips_timer_ack = null_timer_ack;
- /* This sets up the high precision timer for the first interrupt. */
- mips_hpt_init();
-
/*
* Call board specific timer interrupt setup.
*
diff --git a/arch/mips/pmc-sierra/yosemite/smp.c b/arch/mips/pmc-sierra/yosemite/smp.c
index 3cc0436db6cf..305491e74dbe 100644
--- a/arch/mips/pmc-sierra/yosemite/smp.c
+++ b/arch/mips/pmc-sierra/yosemite/smp.c
@@ -99,8 +99,6 @@ void prom_cpus_done(void)
*/
void prom_init_secondary(void)
{
- mips_hpt_init();
-
set_c0_status(ST0_CO | ST0_IE | ST0_IM);
}
diff --git a/include/asm-mips/time.h b/include/asm-mips/time.h
index 625acd337bc3..b58665efb1d7 100644
--- a/include/asm-mips/time.h
+++ b/include/asm-mips/time.h
@@ -48,7 +48,6 @@ extern void (*mips_timer_ack)(void);
* If mips_hpt_read is NULL, an R4k-compatible timer setup is attempted.
*/
extern unsigned int (*mips_hpt_read)(void);
-extern void (*mips_hpt_init)(void);
extern unsigned int mips_hpt_mask;
/*
--
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