2 * (C) Copyright 2000-2002
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * Copyright 2004 Freescale Semiconductor, Inc.
7 * SPDX-License-Identifier: GPL-2.0+
13 #include <asm/processor.h>
15 DECLARE_GLOBAL_DATA_PTR;
18 interrupt_handler_t *handler;
23 int interrupt_init_cpu (unsigned *decrementer_count)
25 volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
27 *decrementer_count = (gd->bus_clk / 4) / CONFIG_SYS_HZ;
29 /* Enable e300 time base */
31 immr->sysconf.spcr |= 0x00400000;
38 * Handle external interrupts
41 void external_interrupt (struct pt_regs *regs)
47 * Install and free an interrupt handler.
51 irq_install_handler (int irq, interrupt_handler_t * handler, void *arg)
56 void irq_free_handler (int irq)
61 void timer_interrupt_cpu (struct pt_regs *regs)
63 /* nothing to do here */
68 #if defined(CONFIG_CMD_IRQ)
70 /* ripped this out of ppc4xx/interrupts.c */
73 * irqinfo - print information about PCI devices
77 do_irqinfo(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char * const argv[])