1 /*
2  * (C) Copyright 2000-2002
3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4  *
5  * Copyright 2004 Freescale Semiconductor, Inc.
6  *
7  * SPDX-License-Identifier:	GPL-2.0+
8  */
9 
10 #include <common.h>
11 #include <command.h>
12 #include <mpc83xx.h>
13 #include <asm/processor.h>
14 
15 DECLARE_GLOBAL_DATA_PTR;
16 
17 struct irq_action {
18 	interrupt_handler_t *handler;
19 	void *arg;
20 	ulong count;
21 };
22 
23 int interrupt_init_cpu (unsigned *decrementer_count)
24 {
25 	volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
26 
27 	*decrementer_count = (gd->bus_clk / 4) / CONFIG_SYS_HZ;
28 
29 	/* Enable e300 time base */
30 
31 	immr->sysconf.spcr |= 0x00400000;
32 
33 	return 0;
34 }
35 
36 
37 /*
38  * Handle external interrupts
39  */
40 
41 void external_interrupt (struct pt_regs *regs)
42 {
43 }
44 
45 
46 /*
47  * Install and free an interrupt handler.
48  */
49 
50 void
51 irq_install_handler (int irq, interrupt_handler_t * handler, void *arg)
52 {
53 }
54 
55 
56 void irq_free_handler (int irq)
57 {
58 }
59 
60 
61 void timer_interrupt_cpu (struct pt_regs *regs)
62 {
63 	/* nothing to do here */
64 	return;
65 }
66 
67 
68 #if defined(CONFIG_CMD_IRQ)
69 
70 /* ripped this out of ppc4xx/interrupts.c */
71 
72 /*
73  * irqinfo - print information about PCI devices
74  */
75 
76 void
77 do_irqinfo(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char * const argv[])
78 {
79 }
80 
81 #endif
82