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-rw-r--r--cpu/at32ap/interrupts.c150
1 files changed, 0 insertions, 150 deletions
diff --git a/cpu/at32ap/interrupts.c b/cpu/at32ap/interrupts.c
deleted file mode 100644
index c6d8d16..0000000
--- a/cpu/at32ap/interrupts.c
+++ /dev/null
@@ -1,150 +0,0 @@
-/*
- * Copyright (C) 2004-2006 Atmel Corporation
- *
- * 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., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-#include <common.h>
-#include <div64.h>
-
-#include <asm/errno.h>
-#include <asm/io.h>
-#include <asm/processor.h>
-#include <asm/sysreg.h>
-
-#include <asm/arch/memory-map.h>
-
-#define HANDLER_MASK 0x00ffffff
-#define INTLEV_SHIFT 30
-#define INTLEV_MASK 0x00000003
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/* Incremented whenever COUNT reaches 0xffffffff by timer_interrupt_handler */
-volatile unsigned long timer_overflow;
-
-/*
- * Instead of dividing by get_tbclk(), multiply by this constant and
- * right-shift the result by 32 bits.
- */
-static unsigned long tb_factor;
-
-unsigned long get_tbclk(void)
-{
- return gd->cpu_hz;
-}
-
-unsigned long long get_ticks(void)
-{
- unsigned long lo, hi_now, hi_prev;
-
- do {
- hi_prev = timer_overflow;
- lo = sysreg_read(COUNT);
- hi_now = timer_overflow;
- } while (hi_prev != hi_now);
-
- return ((unsigned long long)hi_now << 32) | lo;
-}
-
-void reset_timer(void)
-{
- sysreg_write(COUNT, 0);
- cpu_sync_pipeline(); /* process any pending interrupts */
- timer_overflow = 0;
-}
-
-unsigned long get_timer(unsigned long base)
-{
- u64 now = get_ticks();
-
- now *= tb_factor;
- return (unsigned long)(now >> 32) - base;
-}
-
-void set_timer(unsigned long t)
-{
- unsigned long long ticks = t;
- unsigned long lo, hi, hi_new;
-
- ticks = (ticks * get_tbclk()) / CONFIG_SYS_HZ;
- hi = ticks >> 32;
- lo = ticks & 0xffffffffUL;
-
- do {
- timer_overflow = hi;
- sysreg_write(COUNT, lo);
- hi_new = timer_overflow;
- } while (hi_new != hi);
-}
-
-/*
- * For short delays only. It will overflow after a few seconds.
- */
-void __udelay(unsigned long usec)
-{
- unsigned long cycles;
- unsigned long base;
- unsigned long now;
-
- base = sysreg_read(COUNT);
- cycles = ((usec * (get_tbclk() / 10000)) + 50) / 100;
-
- do {
- now = sysreg_read(COUNT);
- } while ((now - base) < cycles);
-}
-
-static int set_interrupt_handler(unsigned int nr, void (*handler)(void),
- unsigned int priority)
-{
- extern void _evba(void);
- unsigned long intpr;
- unsigned long handler_addr = (unsigned long)handler;
-
- handler_addr -= (unsigned long)&_evba;
-
- if ((handler_addr & HANDLER_MASK) != handler_addr
- || (priority & INTLEV_MASK) != priority)
- return -EINVAL;
-
- intpr = (handler_addr & HANDLER_MASK);
- intpr |= (priority & INTLEV_MASK) << INTLEV_SHIFT;
- writel(intpr, (void *)INTC_BASE + 4 * nr);
-
- return 0;
-}
-
-void timer_init(void)
-{
- extern void timer_interrupt_handler(void);
- u64 tmp;
-
- sysreg_write(COUNT, 0);
-
- tmp = (u64)CONFIG_SYS_HZ << 32;
- tmp += gd->cpu_hz / 2;
- do_div(tmp, gd->cpu_hz);
- tb_factor = (u32)tmp;
-
- if (set_interrupt_handler(0, &timer_interrupt_handler, 3))
- return;
-
- /* For all practical purposes, this gives us an overflow interrupt */
- sysreg_write(COMPARE, 0xffffffff);
-}