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Diffstat (limited to 'cpu/ppc4xx/interrupts.c')
| -rw-r--r-- | cpu/ppc4xx/interrupts.c | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/cpu/ppc4xx/interrupts.c b/cpu/ppc4xx/interrupts.c deleted file mode 100644 index 6db8421..0000000 --- a/cpu/ppc4xx/interrupts.c +++ /dev/null @@ -1,216 +0,0 @@ -/* - * (C) Copyright 2000-2002 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * (C) Copyright 2002 (440 port) - * Scott McNutt, Artesyn Communication Producs, smcnutt@artsyncp.com - * - * (C) Copyright 2003 (440GX port) - * Travis B. Sawyer, Sandburst Corporation, tsawyer@sandburst.com - * - * (C) Copyright 2008 (PPC440X05 port for Virtex 5 FX) - * Ricardo Ribalda-Universidad Autonoma de Madrid-ricardo.ribalda@uam.es - * Work supported by Qtechnology (htpp://qtec.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 <watchdog.h> -#include <command.h> -#include <asm/processor.h> -#include <asm/interrupt.h> -#include <ppc4xx.h> -#include <ppc_asm.tmpl> -#include <commproc.h> - -DECLARE_GLOBAL_DATA_PTR; - -/* - * CPM interrupt vector functions. - */ -struct irq_action { - interrupt_handler_t *handler; - void *arg; - int count; -}; -static struct irq_action irq_vecs[IRQ_MAX]; - -#if defined(CONFIG_440) - -/* SPRN changed in 440 */ -static __inline__ void set_evpr(unsigned long val) -{ - asm volatile("mtspr 0x03f,%0" : : "r" (val)); -} - -#else /* !defined(CONFIG_440) */ - -static __inline__ void set_pit(unsigned long val) -{ - asm volatile("mtpit %0" : : "r" (val)); -} - - -static __inline__ void set_tcr(unsigned long val) -{ - asm volatile("mttcr %0" : : "r" (val)); -} - - -static __inline__ void set_evpr(unsigned long val) -{ - asm volatile("mtevpr %0" : : "r" (val)); -} -#endif /* defined(CONFIG_440 */ - -int interrupt_init_cpu (unsigned *decrementer_count) -{ - int vec; - unsigned long val; - - /* decrementer is automatically reloaded */ - *decrementer_count = 0; - - /* - * Mark all irqs as free - */ - for (vec = 0; vec < IRQ_MAX; vec++) { - irq_vecs[vec].handler = NULL; - irq_vecs[vec].arg = NULL; - irq_vecs[vec].count = 0; - } - -#ifdef CONFIG_4xx - /* - * Init PIT - */ -#if defined(CONFIG_440) - val = mfspr( SPRN_TCR ); - val &= (~0x04400000); /* clear DIS & ARE */ - mtspr( SPRN_TCR, val ); - mtspr( SPRN_DEC, 0 ); /* Prevent exception after TSR clear*/ - mtspr( SPRN_DECAR, 0 ); /* clear reload */ - mtspr( SPRN_TSR, 0x08000000 ); /* clear DEC status */ - val = gd->bd->bi_intfreq/1000; /* 1 msec */ - mtspr( SPRN_DECAR, val ); /* Set auto-reload value */ - mtspr( SPRN_DEC, val ); /* Set inital val */ -#else - set_pit(gd->bd->bi_intfreq / 1000); -#endif -#endif /* CONFIG_4xx */ - -#ifdef CONFIG_ADCIOP - /* - * Init PIT - */ - set_pit(66000); -#endif - - /* - * Enable PIT - */ - val = mfspr(SPRN_TCR); - val |= 0x04400000; - mtspr(SPRN_TCR, val); - - /* - * Set EVPR to 0 - */ - set_evpr(0x00000000); - - /* - * Call uic or xilinx_irq pic_enable - */ - pic_enable(); - - return (0); -} - -void timer_interrupt_cpu(struct pt_regs *regs) -{ - /* nothing to do here */ - return; -} - -void interrupt_run_handler(int vec) -{ - irq_vecs[vec].count++; - - if (irq_vecs[vec].handler != NULL) { - /* call isr */ - (*irq_vecs[vec].handler) (irq_vecs[vec].arg); - } else { - pic_irq_disable(vec); - printf("Masking bogus interrupt vector %d\n", vec); - } - - pic_irq_ack(vec); - return; -} - -void irq_install_handler(int vec, interrupt_handler_t * handler, void *arg) -{ - /* - * Print warning when replacing with a different irq vector - */ - if ((irq_vecs[vec].handler != NULL) && (irq_vecs[vec].handler != handler)) { - printf("Interrupt vector %d: handler 0x%x replacing 0x%x\n", - vec, (uint) handler, (uint) irq_vecs[vec].handler); - } - irq_vecs[vec].handler = handler; - irq_vecs[vec].arg = arg; - - pic_irq_enable(vec); - return; -} - -void irq_free_handler(int vec) -{ - debug("Free interrupt for vector %d ==> %p\n", - vec, irq_vecs[vec].handler); - - pic_irq_disable(vec); - - irq_vecs[vec].handler = NULL; - irq_vecs[vec].arg = NULL; - return; -} - -#if defined(CONFIG_CMD_IRQ) -int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) -{ - int vec; - - printf ("Interrupt-Information:\n"); - printf ("Nr Routine Arg Count\n"); - - for (vec = 0; vec < IRQ_MAX; vec++) { - if (irq_vecs[vec].handler != NULL) { - printf ("%02d %08lx %08lx %d\n", - vec, - (ulong)irq_vecs[vec].handler, - (ulong)irq_vecs[vec].arg, - irq_vecs[vec].count); - } - } - - return 0; -} -#endif |