1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * (C) Copyright 2000-2002
3*4882a593Smuzhiyun * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright 2004 Freescale Semiconductor, Inc.
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
8*4882a593Smuzhiyun */
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun #include <common.h>
11*4882a593Smuzhiyun #include <command.h>
12*4882a593Smuzhiyun #include <mpc83xx.h>
13*4882a593Smuzhiyun #include <asm/processor.h>
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun DECLARE_GLOBAL_DATA_PTR;
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun struct irq_action {
18*4882a593Smuzhiyun interrupt_handler_t *handler;
19*4882a593Smuzhiyun void *arg;
20*4882a593Smuzhiyun ulong count;
21*4882a593Smuzhiyun };
22*4882a593Smuzhiyun
interrupt_init_cpu(unsigned * decrementer_count)23*4882a593Smuzhiyun void interrupt_init_cpu (unsigned *decrementer_count)
24*4882a593Smuzhiyun {
25*4882a593Smuzhiyun volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun *decrementer_count = (gd->bus_clk / 4) / CONFIG_SYS_HZ;
28*4882a593Smuzhiyun
29*4882a593Smuzhiyun /* Enable e300 time base */
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun immr->sysconf.spcr |= 0x00400000;
32*4882a593Smuzhiyun }
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun /*
36*4882a593Smuzhiyun * Handle external interrupts
37*4882a593Smuzhiyun */
38*4882a593Smuzhiyun
external_interrupt(struct pt_regs * regs)39*4882a593Smuzhiyun void external_interrupt (struct pt_regs *regs)
40*4882a593Smuzhiyun {
41*4882a593Smuzhiyun }
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun /*
45*4882a593Smuzhiyun * Install and free an interrupt handler.
46*4882a593Smuzhiyun */
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun void
irq_install_handler(int irq,interrupt_handler_t * handler,void * arg)49*4882a593Smuzhiyun irq_install_handler (int irq, interrupt_handler_t * handler, void *arg)
50*4882a593Smuzhiyun {
51*4882a593Smuzhiyun }
52*4882a593Smuzhiyun
53*4882a593Smuzhiyun
irq_free_handler(int irq)54*4882a593Smuzhiyun void irq_free_handler (int irq)
55*4882a593Smuzhiyun {
56*4882a593Smuzhiyun }
57*4882a593Smuzhiyun
58*4882a593Smuzhiyun
timer_interrupt_cpu(struct pt_regs * regs)59*4882a593Smuzhiyun void timer_interrupt_cpu (struct pt_regs *regs)
60*4882a593Smuzhiyun {
61*4882a593Smuzhiyun /* nothing to do here */
62*4882a593Smuzhiyun return;
63*4882a593Smuzhiyun }
64*4882a593Smuzhiyun
65*4882a593Smuzhiyun
66*4882a593Smuzhiyun #if defined(CONFIG_CMD_IRQ)
67*4882a593Smuzhiyun
68*4882a593Smuzhiyun /* ripped this out of ppc4xx/interrupts.c */
69*4882a593Smuzhiyun
70*4882a593Smuzhiyun /*
71*4882a593Smuzhiyun * irqinfo - print information about PCI devices
72*4882a593Smuzhiyun */
73*4882a593Smuzhiyun
74*4882a593Smuzhiyun void
do_irqinfo(cmd_tbl_t * cmdtp,bd_t * bd,int flag,int argc,char * const argv[])75*4882a593Smuzhiyun do_irqinfo(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char * const argv[])
76*4882a593Smuzhiyun {
77*4882a593Smuzhiyun }
78*4882a593Smuzhiyun
79*4882a593Smuzhiyun #endif
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