ARM: highbank: convert to common timer code

Convert highbank to use the commmon timer code.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>

diff --git a/arch/arm/cpu/armv7/highbank/timer.c b/arch/arm/cpu/armv7/highbank/timer.c
index b61cd69..d56bf21 100644 (file)
--- a/arch/arm/cpu/armv7/highbank/timer.c
+++ b/arch/arm/cpu/armv7/highbank/timer.c
@@ -7,18 +7,12 @@
  */
 
 #include <common.h>
-#include <div64.h>
-#include <linux/types.h>        /* for size_t */
-#include <linux/stddef.h>       /* for NULL */
 #include <asm/io.h>
 #include <asm/arch-armv7/systimer.h>
 
 #undef SYSTIMER_BASE
 #define SYSTIMER_BASE          0xFFF34000      /* Timer 0 and 1 base   */
-#define SYSTIMER_RATE          (150000000 / 256)
 
-static ulong timestamp;
-static ulong lastinc;
 static struct systimer *systimer_base = (struct systimer *)SYSTIMER_BASE;
 
 /*
@@ -38,80 +32,3 @@ int timer_init(void)
        return 0;
 
 }
-
-#define TICK_PER_TIME  ((SYSTIMER_RATE + CONFIG_SYS_HZ / 2) / CONFIG_SYS_HZ)
-#define NS_PER_TICK    (1000000000 / SYSTIMER_RATE)
-
-static inline unsigned long long tick_to_time(unsigned long long tick)
-{
-       do_div(tick, TICK_PER_TIME);
-       return tick;
-}
-
-static inline unsigned long long time_to_tick(unsigned long long time)
-{
-       return time * TICK_PER_TIME;
-}
-
-static inline unsigned long long us_to_tick(unsigned long long us)
-{
-       unsigned long long tick = us * 1000;
-       tick += NS_PER_TICK - 1;
-       do_div(tick, NS_PER_TICK);
-       return tick;
-}
-
-unsigned long long get_ticks(void)
-{
-       ulong now = ~readl(&systimer_base->timer0value);
-
-       if (now >= lastinc)     /* normal mode (non roll) */
-               /* move stamp forward with absolut diff ticks */
-               timestamp += (now - lastinc);
-       else                    /* we have rollover of incrementer */
-               timestamp += (0xFFFFFFFF - lastinc) + now;
-       lastinc = now;
-       return timestamp;
-}
-
-/*
- * Delay x useconds AND preserve advance timstamp value
- *     assumes timer is ticking at 1 msec
- */
-void __udelay(ulong usec)
-{
-       unsigned long long tmp;
-       ulong tmo;
-
-       tmo = us_to_tick(usec);
-       tmp = get_ticks() + tmo;        /* get current timestamp */
-
-       while (get_ticks() < tmp)       /* loop till event */
-                /*NOP*/;
-}
-
-ulong get_timer(ulong base)
-{
-       return get_timer_masked() - base;
-}
-
-void reset_timer_masked(void)
-{
-       lastinc = ~readl(&systimer_base->timer0value);
-       timestamp = 0;
-}
-
-void reset_timer(void)
-{
-       reset_timer_masked();
-}
-
-ulong get_timer_masked(void)
-{
-       return tick_to_time(get_ticks());
-}
-
-ulong get_tbclk(void)
-{
-       return SYSTIMER_RATE;
-}

diff --git a/include/configs/highbank.h b/include/configs/highbank.h
index 016305a..44a8f93 100644 (file)
--- a/include/configs/highbank.h
+++ b/include/configs/highbank.h
@@ -19,6 +19,10 @@
 #define CONFIG_SUPPORT_RAW_INITRD
 #define CONFIG_SYS_BOOTMAPSZ           (16 << 20)
 
+#define CONFIG_SYS_TIMER_RATE          (150000000/256)
+#define CONFIG_SYS_TIMER_COUNTER       (0xFFF34000 + 0x4)
+#define CONFIG_SYS_TIMER_COUNTS_DOWN
+
 /*
  * Size of malloc() pool
  */