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-rw-r--r--arch/nios/cpu/interrupts.c196
1 files changed, 0 insertions, 196 deletions
diff --git a/arch/nios/cpu/interrupts.c b/arch/nios/cpu/interrupts.c
deleted file mode 100644
index 55a5718..0000000
--- a/arch/nios/cpu/interrupts.c
+++ /dev/null
@@ -1,196 +0,0 @@
-/*
- * (C) Copyright 2000-2002
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * (C) Copyright 2003, Psyent Corporation <www.psyent.com>
- * Scott McNutt <smcnutt@psyent.com>
- *
- * 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 <nios.h>
-#include <nios-io.h>
-#include <asm/ptrace.h>
-#include <common.h>
-#include <command.h>
-#include <watchdog.h>
-#ifdef CONFIG_STATUS_LED
-#include <status_led.h>
-#endif
-
-/****************************************************************************/
-
-struct irq_action {
- interrupt_handler_t *handler;
- void *arg;
- int count;
-};
-
-static struct irq_action irq_vecs[64];
-
-/*************************************************************************/
-volatile ulong timestamp = 0;
-
-void reset_timer (void)
-{
- timestamp = 0;
-}
-
-ulong get_timer (ulong base)
-{
- WATCHDOG_RESET ();
- return (timestamp - base);
-}
-
-void set_timer (ulong t)
-{
- timestamp = t;
-}
-
-
-/* The board must handle this interrupt if a timer is not
- * provided.
- */
-#if defined(CONFIG_SYS_NIOS_TMRBASE)
-void timer_interrupt (struct pt_regs *regs)
-{
- /* Interrupt is cleared by writing anything to the
- * status register.
- */
- nios_timer_t *tmr = (nios_timer_t *)CONFIG_SYS_NIOS_TMRBASE;
- tmr->status = 0;
- timestamp += CONFIG_SYS_NIOS_TMRMS;
-#ifdef CONFIG_STATUS_LED
- status_led_tick(timestamp);
-#endif
-}
-#endif
-
-/*************************************************************************/
-int disable_interrupts (void)
-{
- int val = 0;
-
- /* Writing anything to CLR_IE disables interrupts */
- val = rdctl (CTL_STATUS);
- wrctl (CTL_CLR_IE, 0);
- return (val & STATUS_IE);
-}
-
-void enable_interrupts( void )
-{
- /* Writing anything SET_IE enables interrupts */
- wrctl (CTL_SET_IE, 0);
-}
-
-void external_interrupt (struct pt_regs *regs)
-{
- unsigned vec;
-
- vec = (regs->status & STATUS_IPRI) >> 9; /* ipri */
-
- irq_vecs[vec].count++;
- if (irq_vecs[vec].handler != NULL) {
- (*irq_vecs[vec].handler)(irq_vecs[vec].arg);
- } else {
- /* A sad side-effect of masking a bogus interrupt is
- * that lower priority interrupts will also be disabled.
- * This is probably not what we want ... so hang insted.
- */
- printf ("Unhandled interrupt: 0x%x\n", vec);
- disable_interrupts ();
- hang ();
- }
-}
-
-/*************************************************************************/
-int interrupt_init (void)
-{
- int vec;
-
-#if defined(CONFIG_SYS_NIOS_TMRBASE)
- nios_timer_t *tmr = (nios_timer_t *)CONFIG_SYS_NIOS_TMRBASE;
-
- tmr->control &= ~NIOS_TIMER_ITO;
- tmr->control |= NIOS_TIMER_STOP;
-#if defined(CONFIG_SYS_NIOS_TMRCNT)
- tmr->periodl = CONFIG_SYS_NIOS_TMRCNT & 0xffff;
- tmr->periodh = (CONFIG_SYS_NIOS_TMRCNT >> 16) & 0xffff;
-#endif
-#endif
-
- for (vec=0; vec<64; vec++ ) {
- irq_vecs[vec].handler = NULL;
- irq_vecs[vec].arg = NULL;
- irq_vecs[vec].count = 0;
- }
-
- /* Need timus interruptus -- start the lopri timer */
-#if defined(CONFIG_SYS_NIOS_TMRBASE)
- tmr->control |= ( NIOS_TIMER_ITO |
- NIOS_TIMER_CONT |
- NIOS_TIMER_START );
- ipri (CONFIG_SYS_NIOS_TMRIRQ + 1);
-#endif
- enable_interrupts ();
- return (0);
-}
-
-void irq_install_handler (int vec, interrupt_handler_t *handler, void *arg)
-{
- struct irq_action *irqa = irq_vecs;
- int i = vec;
- int flag;
-
- if (irqa[i].handler != NULL) {
- printf ("Interrupt vector %d: handler 0x%x "
- "replacing 0x%x\n",
- vec, (uint)handler, (uint)irqa[i].handler);
- }
-
- flag = disable_interrupts ();
- irqa[i].handler = handler;
- irqa[i].arg = arg;
- if (flag )
- enable_interrupts ();
-}
-
-/*************************************************************************/
-#if defined(CONFIG_CMD_IRQ)
-int do_irqinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
-{
- int vec;
-
- printf ("\nInterrupt-Information:\n");
- printf ("Nr Routine Arg Count\n");
-
- for (vec=0; vec<64; vec++) {
- if (irq_vecs[vec].handler != NULL) {
- printf ("%02d %08lx %08lx %d\n",
- vec,
- (ulong)irq_vecs[vec].handler<<1,
- (ulong)irq_vecs[vec].arg,
- irq_vecs[vec].count);
- }
- }
-
- return (0);
-}
-#endif