[PATCH] mips hpt cleanup: get rid of mips_hpt_init

[Atsushi Nemoto <anemo@mba.ocn.ne.jp>]

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>

 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 2c6d52b..111d1ba 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(voi
 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 */
@@ -376,16 +369,20 @@ 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,
@@ -396,9 +393,6 @@ 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 3cc0436..305491e 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 625acd3..b58665e 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;
 
 /*