diff options
Diffstat (limited to 'arch/mips/gt64120/ev64120/irq.c')
| -rw-r--r-- | arch/mips/gt64120/ev64120/irq.c | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/arch/mips/gt64120/ev64120/irq.c b/arch/mips/gt64120/ev64120/irq.c deleted file mode 100644 index 64e4c80b613..00000000000 --- a/arch/mips/gt64120/ev64120/irq.c +++ /dev/null @@ -1,116 +0,0 @@ -/* - * BRIEF MODULE DESCRIPTION - * Code to handle irqs on GT64120A boards - * Derived from mips/orion and Cort <cort@fsmlabs.com> - * - * Copyright (C) 2000 RidgeRun, Inc. - * Author: RidgeRun, Inc. - * glonnon@ridgerun.com, skranz@ridgerun.com, stevej@ridgerun.com - * - * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * 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 <linux/errno.h> -#include <linux/init.h> -#include <linux/kernel_stat.h> -#include <linux/module.h> -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/types.h> -#include <linux/interrupt.h> -#include <linux/ioport.h> -#include <linux/timex.h> -#include <linux/slab.h> -#include <linux/random.h> -#include <linux/bitops.h> -#include <asm/bootinfo.h> -#include <asm/io.h> -#include <asm/mipsregs.h> -#include <asm/system.h> -#include <asm/gt64120.h> - -asmlinkage void plat_irq_dispatch(void) -{ - unsigned int pending = read_c0_status() & read_c0_cause() & ST0_IM; - - if (pending & STATUSF_IP4) /* int2 hardware line (timer) */ - do_IRQ(4); - else if (pending & STATUSF_IP2) /* int0 hardware line */ - do_IRQ(GT_INTA); - else if (pending & STATUSF_IP5) /* int3 hardware line */ - do_IRQ(GT_INTD); - else if (pending & STATUSF_IP6) /* int4 hardware line */ - do_IRQ(6); - else if (pending & STATUSF_IP7) /* compare int */ - do_IRQ(7); - else - spurious_interrupt(); -} - -static void disable_ev64120_irq(unsigned int irq_nr) -{ - if (irq_nr >= 8) { // All PCI interrupts are on line 5 or 2 - clear_c0_status(9 << 10); - } else { - clear_c0_status(1 << (irq_nr + 8)); - } -} - -static void enable_ev64120_irq(unsigned int irq_nr) -{ - if (irq_nr >= 8) // All PCI interrupts are on line 5 or 2 - set_c0_status(9 << 10); - else - set_c0_status(1 << (irq_nr + 8)); -} - -static void end_ev64120_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - enable_ev64120_irq(irq); -} - -static struct irq_chip ev64120_irq_type = { - .name = "EV64120", - .ack = disable_ev64120_irq, - .mask = disable_ev64120_irq, - .mask_ack = disable_ev64120_irq, - .unmask = enable_ev64120_irq, - .end = end_ev64120_irq, -}; - -void gt64120_irq_setup(void) -{ - /* - * Clear all of the interrupts while we change the able around a bit. - */ - clear_c0_status(ST0_IM); - - /* - * Enable timer. Other interrupts will be enabled as they are - * registered. - */ - set_c0_status(IE_IRQ2); -} - -void __init arch_init_irq(void) -{ - gt64120_irq_setup(); -} |