1 /*
2  * (C) Copyright 2000-2002
3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4  *
5  * Copyright 2004 Freescale Semiconductor, Inc.
6  *
7  * See file CREDITS for list of people who contributed to this
8  * project.
9  *
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.
14  *
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.
19  *
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,
23  * MA 02111-1307 USA
24  */
25 
26 #include <common.h>
27 #include <command.h>
28 #include <mpc83xx.h>
29 #include <asm/processor.h>
30 
31 DECLARE_GLOBAL_DATA_PTR;
32 
33 struct irq_action {
34 	interrupt_handler_t *handler;
35 	void *arg;
36 	ulong count;
37 };
38 
39 int interrupt_init_cpu (unsigned *decrementer_count)
40 {
41 	volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
42 
43 	*decrementer_count = (gd->bus_clk / 4) / CONFIG_SYS_HZ;
44 
45 	/* Enable e300 time base */
46 
47 	immr->sysconf.spcr |= 0x00400000;
48 
49 	return 0;
50 }
51 
52 
53 /*
54  * Handle external interrupts
55  */
56 
57 void external_interrupt (struct pt_regs *regs)
58 {
59 }
60 
61 
62 /*
63  * Install and free an interrupt handler.
64  */
65 
66 void
67 irq_install_handler (int irq, interrupt_handler_t * handler, void *arg)
68 {
69 }
70 
71 
72 void irq_free_handler (int irq)
73 {
74 }
75 
76 
77 void timer_interrupt_cpu (struct pt_regs *regs)
78 {
79 	/* nothing to do here */
80 	return;
81 }
82 
83 
84 #if defined(CONFIG_CMD_IRQ)
85 
86 /* ripped this out of ppc4xx/interrupts.c */
87 
88 /*
89  * irqinfo - print information about PCI devices
90  */
91 
92 void
93 do_irqinfo(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char * const argv[])
94 {
95 }
96 
97 #endif
98