X-Git-Url: http://git.agner.ch/gitweb/?a=blobdiff_plain;f=arch%2Fmips%2Fsibyte%2Fsb1250%2Ftime.c;h=bcb74f2c19484dfb4cecef6e6f7213c9f98e8e71;hb=bdbf77d6707a52bdeff223d0a60df12d086d21d7;hp=0d17aec03dd7f7ad7121c93e8939ecdac8d9d78f;hpb=7ff3e52cf2947ebd38c84159af68e5a29d228f6c;p=linux-drm-fsl-dcu.git

diff --git a/arch/mips/sibyte/sb1250/time.c b/arch/mips/sibyte/sb1250/time.c
index 0d17aec03dd7..bcb74f2c1948 100644
--- a/arch/mips/sibyte/sb1250/time.c
+++ b/arch/mips/sibyte/sb1250/time.c
@@ -31,7 +31,6 @@
 #include <linux/kernel_stat.h>
 
 #include <asm/irq.h>
-#include <asm/ptrace.h>
 #include <asm/addrspace.h>
 #include <asm/time.h>
 #include <asm/io.h>
@@ -48,15 +47,11 @@
 
 #define SB1250_HPT_NUM		3
 #define SB1250_HPT_VALUE	M_SCD_TIMER_CNT /* max value */
-#define SB1250_HPT_SHIFT	((sizeof(unsigned int)*8)-V_SCD_TIMER_WIDTH)
 
 
 extern int sb1250_steal_irq(int irq);
 
 static unsigned int sb1250_hpt_read(void);
-static void sb1250_hpt_init(unsigned int);
-
-static unsigned int hpt_offset;
 
 void __init sb1250_hpt_setup(void)
 {
@@ -70,13 +65,9 @@ void __init sb1250_hpt_setup(void)
 		__raw_writeq(M_SCD_TIMER_ENABLE | M_SCD_TIMER_MODE_CONTINUOUS,
 			     IOADDR(A_SCD_TIMER_REGISTER(SB1250_HPT_NUM, R_SCD_TIMER_CFG)));
 
-		/*
-		 * we need to fill 32 bits, so just use the upper 23 bits and pretend
-		 * the timer is going 512Mhz instead of 1Mhz
-		 */
-		mips_hpt_frequency = V_SCD_TIMER_FREQ << SB1250_HPT_SHIFT;
-		mips_hpt_init = sb1250_hpt_init;
+		mips_hpt_frequency = V_SCD_TIMER_FREQ;
 		mips_hpt_read = sb1250_hpt_read;
+		mips_hpt_mask = M_SCD_TIMER_INIT;
 	}
 }
 
@@ -150,11 +141,7 @@ void sb1250_timer_interrupt(void)
 
 /*
  * The HPT is free running from SB1250_HPT_VALUE down to 0 then starts over
- * again. There's no easy way to set to a specific value so store init value
- * in hpt_offset and subtract each time.
- *
- * Note: Timer isn't full 32bits so shift it into the upper part making
- *       it appear to run at a higher frequency.
+ * again.
  */
 static unsigned int sb1250_hpt_read(void)
 {
@@ -162,13 +149,5 @@ static unsigned int sb1250_hpt_read(void)
 
 	count = G_SCD_TIMER_CNT(__raw_readq(IOADDR(A_SCD_TIMER_REGISTER(SB1250_HPT_NUM, R_SCD_TIMER_CNT))));
 
-	count = (SB1250_HPT_VALUE - count) << SB1250_HPT_SHIFT;
-
-	return count - hpt_offset;
-}
-
-static void sb1250_hpt_init(unsigned int count)
-{
-	hpt_offset = count;
-	return;
+	return SB1250_HPT_VALUE - count;
 }