2 * (C) Copyright 2000-2002
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * Copyright 2004 Freescale Semiconductor, Inc.
7 * See file CREDITS for list of people who contributed to this
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 #include <asm/processor.h>
31 DECLARE_GLOBAL_DATA_PTR;
34 interrupt_handler_t *handler;
39 int interrupt_init_cpu (unsigned *decrementer_count)
41 volatile immap_t *immr = (immap_t *) CFG_IMMR;
43 *decrementer_count = (gd->bus_clk / 4) / CFG_HZ;
45 /* Enable e300 time base */
47 immr->sysconf.spcr |= 0x00400000;
54 * Handle external interrupts
57 void external_interrupt (struct pt_regs *regs)
63 * Install and free an interrupt handler.
67 irq_install_handler (int irq, interrupt_handler_t * handler, void *arg)
72 void irq_free_handler (int irq)
77 void timer_interrupt_cpu (struct pt_regs *regs)
79 /* nothing to do here */
84 #if defined(CONFIG_CMD_IRQ)
86 /* ripped this out of ppc4xx/interrupts.c */
89 * irqinfo - print information about PCI devices
93 do_irqinfo(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])