diff options
Diffstat (limited to 'arch/mips/wrppmc/irq.c')
| -rw-r--r-- | arch/mips/wrppmc/irq.c | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/arch/mips/wrppmc/irq.c b/arch/mips/wrppmc/irq.c deleted file mode 100644 index f237bf4..0000000 --- a/arch/mips/wrppmc/irq.c +++ /dev/null @@ -1,56 +0,0 @@ -/* - * irq.c: GT64120 Interrupt Controller - * - * Copyright (C) 2006, Wind River System Inc. - * Author: Rongkai.Zhan, <rongkai.zhan@windriver.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. - */ -#include <linux/hardirq.h> -#include <linux/init.h> -#include <linux/irq.h> - -#include <asm/gt64120.h> -#include <asm/irq_cpu.h> -#include <asm/mipsregs.h> - -asmlinkage void plat_irq_dispatch(void) -{ - unsigned int pending = read_c0_status() & read_c0_cause() & ST0_IM; - - if (pending & STATUSF_IP7) - do_IRQ(WRPPMC_MIPS_TIMER_IRQ); /* CPU Compare/Count internal timer */ - else if (pending & STATUSF_IP6) - do_IRQ(WRPPMC_UART16550_IRQ); /* UART 16550 port */ - else if (pending & STATUSF_IP3) - do_IRQ(WRPPMC_PCI_INTA_IRQ); /* PCI INT_A */ - else - spurious_interrupt(); -} - -/** - * Initialize GT64120 Interrupt Controller - */ -void gt64120_init_pic(void) -{ - /* clear CPU Interrupt Cause Registers */ - GT_WRITE(GT_INTRCAUSE_OFS, (0x1F << 21)); - GT_WRITE(GT_HINTRCAUSE_OFS, 0x00); - - /* Disable all interrupts from GT64120 bridge chip */ - GT_WRITE(GT_INTRMASK_OFS, 0x00); - GT_WRITE(GT_HINTRMASK_OFS, 0x00); - GT_WRITE(GT_PCI0_ICMASK_OFS, 0x00); - GT_WRITE(GT_PCI0_HICMASK_OFS, 0x00); -} - -void __init arch_init_irq(void) -{ - /* IRQ 0 - 7 are for MIPS common irq_cpu controller */ - mips_cpu_irq_init(); - - gt64120_init_pic(); -} |