arm: Move cpu/$CPU to arch/arm/cpu/$CPU

[u-boot] / cpu / arm920t / ep93xx / timer.c

diff --git a/cpu/arm920t/ep93xx/timer.c b/cpu/arm920t/ep93xx/timer.c
deleted file mode 100644 (file)
index 4a0ce4d..0000000
--- a/cpu/arm920t/ep93xx/timer.c
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- * Cirrus Logic EP93xx timer support.
- *
- * Copyright (C) 2009, 2010 Matthias Kaehlcke <matthias@kaehlcke.net>
- *
- * Copyright (C) 2004, 2005
- * Cory T. Tusar, Videon Central, Inc., <ctusar@videon-central.com>
- *
- * Based on the original intr.c Cirrus Logic EP93xx Rev D. interrupt support,
- * author unknown.
- *
- * See file CREDITS for list of people who contributed to this project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <common.h>
-#include <linux/types.h>
-#include <asm/arch/ep93xx.h>
-#include <asm/io.h>
-#include <div64.h>
-
-#define TIMER_CLKSEL   (1 << 3)
-#define TIMER_ENABLE   (1 << 7)
-
-#define TIMER_FREQ                     508469          /* ticks / second */
-#define TIMER_MAX_VAL                  0xFFFFFFFF
-
-static struct ep93xx_timer
-{
-       unsigned long long ticks;
-       unsigned long last_read;
-} timer;
-
-static inline unsigned long long usecs_to_ticks(unsigned long usecs)
-{
-       unsigned long long ticks = (unsigned long long)usecs * TIMER_FREQ;
-       do_div(ticks, 1000 * 1000);
-
-       return ticks;
-}
-
-static inline void read_timer(void)
-{
-       struct timer_regs *timer_regs = (struct timer_regs *)TIMER_BASE;
-       const unsigned long now = TIMER_MAX_VAL - readl(&timer_regs->timer3.value);
-
-       if (now >= timer.last_read)
-               timer.ticks += now - timer.last_read;
-       else
-               /* an overflow occurred */
-               timer.ticks += TIMER_MAX_VAL - timer.last_read + now;
-
-       timer.last_read = now;
-}
-
-/*
- * Get the number of ticks (in CONFIG_SYS_HZ resolution)
- */
-unsigned long long get_ticks(void)
-{
-       unsigned long long sys_ticks;
-
-       read_timer();
-
-       sys_ticks = timer.ticks * CONFIG_SYS_HZ;
-       do_div(sys_ticks, TIMER_FREQ);
-
-       return sys_ticks;
-}
-
-unsigned long get_timer_masked(void)
-{
-       return get_ticks();
-}
-
-unsigned long get_timer(unsigned long base)
-{
-       return get_timer_masked() - base;
-}
-
-void reset_timer_masked(void)
-{
-       read_timer();
-       timer.ticks = 0;
-}
-
-void reset_timer(void)
-{
-       reset_timer_masked();
-}
-
-void __udelay(unsigned long usec)
-{
-       unsigned long long target;
-
-       read_timer();
-
-       target = timer.ticks + usecs_to_ticks(usec);
-
-       while (timer.ticks < target)
-               read_timer();
-}
-
-int timer_init(void)
-{
-       struct timer_regs *timer_regs = (struct timer_regs *)TIMER_BASE;
-
-       /* use timer 3 with 508KHz and free running, not enabled now */
-       writel(TIMER_CLKSEL, &timer_regs->timer3.control);
-
-       /* set initial timer value */
-       writel(TIMER_MAX_VAL, &timer_regs->timer3.load);
-
-       /* Enable the timer */
-       writel(TIMER_ENABLE | TIMER_CLKSEL,
-               &timer_regs->timer3.control);
-
-       reset_timer_masked();
-
-       return 0;
-}
-
-/*
- * This function is derived from PowerPC code (timebase clock frequency).
- * On ARM it returns the number of timer ticks per second.
- */
-unsigned long get_tbclk(void)
-{
-       return CONFIG_SYS_HZ;
-}