diff options
Diffstat (limited to 'cpu/microblaze/interrupts.c')
| -rw-r--r-- | cpu/microblaze/interrupts.c | 220 |
1 files changed, 0 insertions, 220 deletions
diff --git a/cpu/microblaze/interrupts.c b/cpu/microblaze/interrupts.c deleted file mode 100644 index a6021c9..0000000 --- a/cpu/microblaze/interrupts.c +++ /dev/null @@ -1,220 +0,0 @@ -/* - * (C) Copyright 2007 Michal Simek - * (C) Copyright 2004 Atmark Techno, Inc. - * - * Michal SIMEK <monstr@monstr.eu> - * Yasushi SHOJI <yashi@atmark-techno.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 <common.h> -#include <command.h> -#include <asm/microblaze_intc.h> -#include <asm/asm.h> - -#undef DEBUG_INT - -extern void microblaze_disable_interrupts (void); -extern void microblaze_enable_interrupts (void); - -void enable_interrupts (void) -{ - MSRSET(0x2); -} - -int disable_interrupts (void) -{ - MSRCLR(0x2); - return 0; -} - -#ifdef CONFIG_SYS_INTC_0 -#ifdef CONFIG_SYS_TIMER_0 -extern void timer_init (void); -#endif -#ifdef CONFIG_SYS_FSL_2 -extern void fsl_init2 (void); -#endif - - -static struct irq_action vecs[CONFIG_SYS_INTC_0_NUM]; - -/* mapping structure to interrupt controller */ -microblaze_intc_t *intc = (microblaze_intc_t *) (CONFIG_SYS_INTC_0_ADDR); - -/* default handler */ -void def_hdlr (void) -{ - puts ("def_hdlr\n"); -} - -void enable_one_interrupt (int irq) -{ - int mask; - int offset = 1; - offset <<= irq; - mask = intc->ier; - intc->ier = (mask | offset); -#ifdef DEBUG_INT - printf ("Enable one interrupt irq %x - mask %x,ier %x\n", offset, mask, - intc->ier); - printf ("INTC isr %x, ier %x, iar %x, mer %x\n", intc->isr, intc->ier, - intc->iar, intc->mer); -#endif -} - -void disable_one_interrupt (int irq) -{ - int mask; - int offset = 1; - offset <<= irq; - mask = intc->ier; - intc->ier = (mask & ~offset); -#ifdef DEBUG_INT - printf ("Disable one interrupt irq %x - mask %x,ier %x\n", irq, mask, - intc->ier); - printf ("INTC isr %x, ier %x, iar %x, mer %x\n", intc->isr, intc->ier, - intc->iar, intc->mer); -#endif -} - -/* adding new handler for interrupt */ -void install_interrupt_handler (int irq, interrupt_handler_t * hdlr, void *arg) -{ - struct irq_action *act; - /* irq out of range */ - if ((irq < 0) || (irq > CONFIG_SYS_INTC_0_NUM)) { - puts ("IRQ out of range\n"); - return; - } - act = &vecs[irq]; - if (hdlr) { /* enable */ - act->handler = hdlr; - act->arg = arg; - act->count = 0; - enable_one_interrupt (irq); - } else { /* disable */ - act->handler = (interrupt_handler_t *) def_hdlr; - act->arg = (void *)irq; - disable_one_interrupt (irq); - } -} - -/* initialization interrupt controller - hardware */ -void intc_init (void) -{ - intc->mer = 0; - intc->ier = 0; - intc->iar = 0xFFFFFFFF; - /* XIntc_Start - hw_interrupt enable and all interrupt enable */ - intc->mer = 0x3; -#ifdef DEBUG_INT - printf ("INTC isr %x, ier %x, iar %x, mer %x\n", intc->isr, intc->ier, - intc->iar, intc->mer); -#endif -} - -int interrupts_init (void) -{ - int i; - /* initialize irq list */ - for (i = 0; i < CONFIG_SYS_INTC_0_NUM; i++) { - vecs[i].handler = (interrupt_handler_t *) def_hdlr; - vecs[i].arg = (void *)i; - vecs[i].count = 0; - } - /* initialize intc controller */ - intc_init (); -#ifdef CONFIG_SYS_TIMER_0 - timer_init (); -#endif -#ifdef CONFIG_SYS_FSL_2 - fsl_init2 (); -#endif - enable_interrupts (); - return 0; -} - -void interrupt_handler (void) -{ - int irqs = (intc->isr & intc->ier); /* find active interrupt */ - int i = 1; -#ifdef DEBUG_INT - int value; - printf ("INTC isr %x, ier %x, iar %x, mer %x\n", intc->isr, intc->ier, - intc->iar, intc->mer); - R14(value); - printf ("Interrupt handler on %x line, r14 %x\n", irqs, value); -#endif - struct irq_action *act = vecs; - while (irqs) { - if (irqs & 1) { -#ifdef DEBUG_INT - printf - ("Jumping to interrupt handler rutine addr %x,count %x,arg %x\n", - act->handler, act->count, act->arg); -#endif - act->handler (act->arg); - act->count++; - intc->iar = i; - return; - } - irqs >>= 1; - act++; - i <<= 1; - } - -#ifdef DEBUG_INT - printf ("Dump INTC reg, isr %x, ier %x, iar %x, mer %x\n", intc->isr, - intc->ier, intc->iar, intc->mer); - R14(value); - printf ("Interrupt handler on %x line, r14 %x\n", irqs, value); -#endif -} -#endif - -#if defined(CONFIG_CMD_IRQ) -#ifdef CONFIG_SYS_INTC_0 -int do_irqinfo (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) -{ - int i; - struct irq_action *act = vecs; - - puts ("\nInterrupt-Information:\n\n" - "Nr Routine Arg Count\n" - "-----------------------------\n"); - - for (i = 0; i < CONFIG_SYS_INTC_0_NUM; i++) { - if (act->handler != (interrupt_handler_t*) def_hdlr) { - printf ("%02d %08x %08x %d\n", i, - (int)act->handler, (int)act->arg, act->count); - } - act++; - } - puts ("\n"); - return (0); -} -#else -int do_irqinfo (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) -{ - puts ("Undefined interrupt controller\n"); -} -#endif -#endif |