Merge tag 'u-boot-atmel-fixes-2020.07-a' of https://gitlab.denx.de/u-boot/custodians...

[oweals/u-boot.git] / arch / arm / mach-at91 / armv7 / timer.c

diff --git a/arch/arm/mach-at91/armv7/timer.c b/arch/arm/mach-at91/armv7/timer.c
index 19bf80ba7eb6195a57b8d91bde9e793567da7fd6..a6346c01b285170ae3c991b8b472404d22c8f025 100644 (file)
--- a/arch/arm/mach-at91/armv7/timer.c
+++ b/arch/arm/mach-at91/armv7/timer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2007-2008
  * Stelian Pop <stelian@popies.net>
@@ -5,15 +6,14 @@
  *
  * (C) Copyright 2013
  * Bo Shen <voice.shen@atmel.com>
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <common.h>
+#include <init.h>
+#include <time.h>
 #include <asm/io.h>
 #include <asm/arch/hardware.h>
 #include <asm/arch/at91_pit.h>
-#include <asm/arch/at91_pmc.h>
 #include <asm/arch/clk.h>
 #include <div64.h>
 
@@ -36,22 +36,6 @@ DECLARE_GLOBAL_DATA_PTR;
 
 #define TIMER_LOAD_VAL 0xfffff
 
-static inline unsigned long long tick_to_time(unsigned long long tick)
-{
-       tick *= CONFIG_SYS_HZ;
-       do_div(tick, gd->arch.timer_rate_hz);
-
-       return tick;
-}
-
-static inline unsigned long long usec_to_tick(unsigned long long usec)
-{
-       usec *= gd->arch.timer_rate_hz;
-       do_div(usec, 1000000);
-
-       return usec;
-}
-
 /*
  * Use the PITC in full 32 bit incrementing mode
  */
@@ -67,54 +51,9 @@ int timer_init(void)
 
        gd->arch.timer_rate_hz = get_pit_clk_rate() / 16;
 
-       gd->arch.tbu = 0;
-       gd->arch.tbl = 0;
-
        return 0;
 }
 
-/*
- * Get the current 64 bit timer tick count
- */
-unsigned long long get_ticks(void)
-{
-       at91_pit_t *pit = (at91_pit_t *)ATMEL_BASE_PIT;
-
-       ulong now = readl(&pit->piir);
-
-       /* increment tbu if tbl has rolled over */
-       if (now < gd->arch.tbl)
-               gd->arch.tbu++;
-       gd->arch.tbl = now;
-       return (((unsigned long long)gd->arch.tbu) << 32) | gd->arch.tbl;
-}
-
-void __udelay(unsigned long usec)
-{
-       unsigned long long start;
-       ulong tmo;
-
-       start = get_ticks();            /* get current timestamp */
-       tmo = usec_to_tick(usec);       /* convert usecs to ticks */
-       while ((get_ticks() - start) < tmo)
-               ;                       /* loop till time has passed */
-}
-
-/*
- * get_timer(base) can be used to check for timeouts or
- * to measure elasped time relative to an event:
- *
- * ulong start_time = get_timer(0) sets start_time to the current
- * time value.
- * get_timer(start_time) returns the time elapsed since then.
- *
- * The time is used in CONFIG_SYS_HZ units!
- */
-ulong get_timer(ulong base)
-{
-       return tick_to_time(get_ticks()) - base;
-}
-
 /*
  * Return the number of timer ticks per second.
  */