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Diffstat (limited to 'arch/arm/cpu/arm925t/timer.c')
-rw-r--r--arch/arm/cpu/arm925t/timer.c104
1 files changed, 0 insertions, 104 deletions
diff --git a/arch/arm/cpu/arm925t/timer.c b/arch/arm/cpu/arm925t/timer.c
deleted file mode 100644
index e56b576b18..0000000000
--- a/arch/arm/cpu/arm925t/timer.c
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * (C) Copyright 2009
- * 2N Telekomunikace, <www.2n.cz>
- *
- * (C) Copyright 2003
- * Texas Instruments, <www.ti.com>
- *
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Marius Groeger <mgroeger@sysgo.de>
- *
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Alex Zuepke <azu@sysgo.de>
- *
- * (C) Copyright 2002
- * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <arm925t.h>
-#include <configs/omap1510.h>
-#include <asm/io.h>
-
-#define TIMER_LOAD_VAL 0xffffffff
-#define TIMER_CLOCK (CONFIG_SYS_CLK_FREQ / (2 << CONFIG_SYS_PTV))
-
-static uint32_t timestamp;
-static uint32_t lastdec;
-
-/* nothing really to do with interrupts, just starts up a counter. */
-int timer_init (void)
-{
- /* Start the decrementer ticking down from 0xffffffff */
- __raw_writel(TIMER_LOAD_VAL, CONFIG_SYS_TIMERBASE + LOAD_TIM);
- __raw_writel(MPUTIM_ST | MPUTIM_AR | MPUTIM_CLOCK_ENABLE |
- (CONFIG_SYS_PTV << MPUTIM_PTV_BIT),
- CONFIG_SYS_TIMERBASE + CNTL_TIMER);
-
- /* init the timestamp and lastdec value */
- lastdec = __raw_readl(CONFIG_SYS_TIMERBASE + READ_TIM) /
- (TIMER_CLOCK / CONFIG_SYS_HZ);
- timestamp = 0; /* start "advancing" time stamp from 0 */
-
- return 0;
-}
-
-/*
- * timer without interrupts
- */
-ulong get_timer (ulong base)
-{
- return get_timer_masked () - base;
-}
-
-/* delay x useconds AND preserve advance timestamp value */
-void __udelay (unsigned long usec)
-{
- int32_t tmo = usec * (TIMER_CLOCK / 1000) / 1000;
- uint32_t now, last = __raw_readl(CONFIG_SYS_TIMERBASE + READ_TIM);
-
- while (tmo > 0) {
- now = __raw_readl(CONFIG_SYS_TIMERBASE + READ_TIM);
- if (last < now) /* count down timer underflow */
- tmo -= TIMER_LOAD_VAL - now + last;
- else
- tmo -= last - now;
- last = now;
- }
-}
-
-ulong get_timer_masked (void)
-{
- uint32_t now = __raw_readl(CONFIG_SYS_TIMERBASE + READ_TIM) /
- (TIMER_CLOCK / CONFIG_SYS_HZ);
- if (lastdec < now) /* count down timer underflow */
- timestamp += TIMER_LOAD_VAL / (TIMER_CLOCK / CONFIG_SYS_HZ) -
- now + lastdec;
- else
- timestamp += lastdec - now;
- lastdec = now;
-
- return timestamp;
-}
-
-/*
- * This function is derived from PowerPC code (read timebase as long long).
- * On ARM it just returns the timer value.
- */
-unsigned long long get_ticks(void)
-{
- return get_timer(0);
-}
-
-/*
- * This function is derived from PowerPC code (timebase clock frequency).
- * On ARM it returns the number of timer ticks per second.
- */
-ulong get_tbclk (void)
-{
- return CONFIG_SYS_HZ;
-}