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-rw-r--r--cpu/mpc5xx/interrupts.c207
1 files changed, 0 insertions, 207 deletions
diff --git a/cpu/mpc5xx/interrupts.c b/cpu/mpc5xx/interrupts.c
deleted file mode 100644
index 167543f..0000000
--- a/cpu/mpc5xx/interrupts.c
+++ /dev/null
@@ -1,207 +0,0 @@
-/*
- * (C) Copyright 2000-2002 Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- * (C) Copyright 2003 Martin Winistoerfer, martinwinistoerfer@gmx.ch.
- *
- * 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,
- */
-
-/*
- * File: interrupt.c
- *
- * Discription: Contains interrupt routines needed by U-Boot
- *
- */
-
-#include <common.h>
-#include <command.h>
-#include <mpc5xx.h>
-#include <asm/processor.h>
-
-#if defined(CONFIG_PATI)
-/* PATI uses IRQs for PCI doorbell */
-#undef NR_IRQS
-#define NR_IRQS 16
-#endif
-
-struct interrupt_action {
- interrupt_handler_t *handler;
- void *arg;
- int count;
-};
-
-static struct interrupt_action irq_vecs[NR_IRQS];
-
-/*
- * Initialise interrupts
- */
-
-int interrupt_init_cpu (ulong *decrementer_count)
-{
- volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
- int vec;
-
- /* Decrementer used here for status led */
- *decrementer_count = get_tbclk () / CONFIG_SYS_HZ;
-
- /* Disable all interrupts */
- immr->im_siu_conf.sc_simask = 0;
- for (vec=0; vec<NR_IRQS; vec++) {
- irq_vecs[vec].handler = NULL;
- irq_vecs[vec].arg = NULL;
- irq_vecs[vec].count = 0;
- }
-
- return (0);
-}
-
-/*
- * Handle external interrupts
- */
-void external_interrupt (struct pt_regs *regs)
-{
- volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
- int irq;
- ulong simask, newmask;
- ulong vec, v_bit;
-
- /*
- * read the SIVEC register and shift the bits down
- * to get the irq number
- */
- vec = immr->im_siu_conf.sc_sivec;
- irq = vec >> 26;
- v_bit = 0x80000000UL >> irq;
-
- /*
- * Read Interrupt Mask Register and Mask Interrupts
- */
- simask = immr->im_siu_conf.sc_simask;
- newmask = simask & (~(0xFFFF0000 >> irq));
- immr->im_siu_conf.sc_simask = newmask;
-
- if (!(irq & 0x1)) { /* External Interrupt ? */
- ulong siel;
-
- /*
- * Read Interrupt Edge/Level Register
- */
- siel = immr->im_siu_conf.sc_siel;
-
- if (siel & v_bit) { /* edge triggered interrupt ? */
- /*
- * Rewrite SIPEND Register to clear interrupt
- */
- immr->im_siu_conf.sc_sipend = v_bit;
- }
- }
-
- if (irq_vecs[irq].handler != NULL) {
- irq_vecs[irq].handler (irq_vecs[irq].arg);
- } else {
- printf ("\nBogus External Interrupt IRQ %d Vector %ld\n",
- irq, vec);
- /* turn off the bogus interrupt to avoid it from now */
- simask &= ~v_bit;
- }
- /*
- * Re-Enable old Interrupt Mask
- */
- immr->im_siu_conf.sc_simask = simask;
-}
-
-/*
- * Install and free an interrupt handler
- */
-void irq_install_handler (int vec, interrupt_handler_t * handler,
- void *arg)
-{
- volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
- /* SIU interrupt */
- if (irq_vecs[vec].handler != NULL) {
- printf ("SIU interrupt %d 0x%x\n",
- vec,
- (uint) handler);
- }
- irq_vecs[vec].handler = handler;
- irq_vecs[vec].arg = arg;
- immr->im_siu_conf.sc_simask |= 1 << (31 - vec);
-#if 0
- printf ("Install SIU interrupt for vector %d ==> %p\n",
- vec, handler);
-#endif
-}
-
-void irq_free_handler (int vec)
-{
- volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
- /* SIU interrupt */
-#if 0
- printf ("Free CPM interrupt for vector %d\n",
- vec);
-#endif
- immr->im_siu_conf.sc_simask &= ~(1 << (31 - vec));
- irq_vecs[vec].handler = NULL;
- irq_vecs[vec].arg = NULL;
-}
-
-/*
- * Timer interrupt - gets called when bit 0 of DEC changes from
- * 0. Decrementer is enabled with bit TBE in TBSCR.
- */
-void timer_interrupt_cpu (struct pt_regs *regs)
-{
- volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
-
-#if 0
- printf ("*** Timer Interrupt *** ");
-#endif
- /* Reset Timer Status Bit and Timers Interrupt Status */
- immr->im_clkrstk.cark_plprcrk = KAPWR_KEY;
- __asm__ ("nop");
- immr->im_clkrst.car_plprcr |= PLPRCR_TEXPS | PLPRCR_TMIST;
-
- return;
-}
-
-#if defined(CONFIG_CMD_IRQ)
-/*******************************************************************************
- *
- * irqinfo - print information about IRQs
- *
- */
-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<NR_IRQS; 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