3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6 * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
8 * See file CREDITS for list of people who contributed to this
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
28 * interrupts.c - just enough support for the decrementer/timer
32 #include <asm/processor.h>
35 int interrupt_init_cpu (ulong *decrementer_count)
37 *decrementer_count = get_tbclk() / CFG_HZ;
42 /****************************************************************************/
45 * Handle external interrupts
48 external_interrupt(struct pt_regs *regs)
50 puts("external_interrupt (oops!)\n");
54 timer_interrupt_cpu (struct pt_regs *regs)
56 /* nothing to do here */
60 /****************************************************************************/
63 * Install and free a interrupt handler.
67 irq_install_handler(int vec, interrupt_handler_t *handler, void *arg)
73 irq_free_handler(int vec)
78 /****************************************************************************/
81 do_irqinfo(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
83 puts("IRQ related functions are unimplemented currently.\n");