[thirdparty/u-boot.git] / arch / powerpc / cpu / mpc83xx / interrupts.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * (C) Copyright 2000-2002
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * Copyright 2004 Freescale Semiconductor, Inc.
 */

#include <common.h>
#include <command.h>
#include <irq_func.h>
#include <mpc83xx.h>
#include <asm/processor.h>

DECLARE_GLOBAL_DATA_PTR;

struct irq_action {
	interrupt_handler_t *handler;
	void *arg;
	ulong count;
};

void interrupt_init_cpu (unsigned *decrementer_count)
{
	volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;

	*decrementer_count = (gd->bus_clk / 4) / CONFIG_SYS_HZ;

	/* Enable e300 time base */

	immr->sysconf.spcr |= 0x00400000;
}


/*
 * Handle external interrupts
 */

void external_interrupt(struct pt_regs *regs)
{
}


/*
 * Install and free an interrupt handler.
 */

void
irq_install_handler(int irq, interrupt_handler_t * handler, void *arg)
{
}


void irq_free_handler(int irq)
{
}


void timer_interrupt_cpu (struct pt_regs *regs)
{
	/* nothing to do here */
	return;
}


#if defined(CONFIG_CMD_IRQ)

/* ripped this out of ppc4xx/interrupts.c */

/*
 * irqinfo - print information about PCI devices
 */

void do_irqinfo(struct cmd_tbl *cmdtp, bd_t *bd, int flag, int argc,
		char *const argv[])
{
}

#endif
Commit	Line	Data
83d290c5	1	// SPDX-License-Identifier: GPL-2.0+
f046ccd1 EL	2	/*
	3	* (C) Copyright 2000-2002
	4	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	5	*
	6	* Copyright 2004 Freescale Semiconductor, Inc.
f046ccd1 EL	7	*/
	8
	9	#include <common.h>
	10	#include <command.h>
c30b7adb	11	#include <irq_func.h>
f046ccd1 EL	12	#include <mpc83xx.h>
	13	#include <asm/processor.h>
	14
d87080b7 WD	15	DECLARE_GLOBAL_DATA_PTR;
d87080b7 WD	16
f046ccd1 EL	17	struct irq_action {
	18	interrupt_handler_t *handler;
	19	void *arg;
	20	ulong count;
	21	};
	22
deff9b1d	23	void interrupt_init_cpu (unsigned *decrementer_count)
f046ccd1	24	{
6d0f6bcf	25	volatile immap_t immr = (immap_t ) CONFIG_SYS_IMMR;
ce574ff5	26
6d0f6bcf	27	*decrementer_count = (gd->bus_clk / 4) / CONFIG_SYS_HZ;
ce574ff5 KG	28
	29	/* Enable e300 time base */
	30
	31	immr->sysconf.spcr \|= 0x00400000;
f046ccd1 EL	32	}
	33
	34
	35	/*
	36	* Handle external interrupts
	37	*/
	38
9d3915b2	39	void external_interrupt(struct pt_regs *regs)
f046ccd1 EL	40	{
	41	}
	42
	43
	44	/*
	45	* Install and free an interrupt handler.
	46	*/
	47
	48	void
9d3915b2	49	irq_install_handler(int irq, interrupt_handler_t * handler, void *arg)
f046ccd1 EL	50	{
	51	}
	52
	53
9d3915b2	54	void irq_free_handler(int irq)
f046ccd1 EL	55	{
	56	}
	57
	58
	59	void timer_interrupt_cpu (struct pt_regs *regs)
	60	{
	61	/* nothing to do here */
	62	return;
	63	}
	64
	65
4431283c	66	#if defined(CONFIG_CMD_IRQ)
f046ccd1 EL	67
	68	/* ripped this out of ppc4xx/interrupts.c */
	69
	70	/*
	71	* irqinfo - print information about PCI devices
	72	*/
	73
09140113 SG	74	void do_irqinfo(struct cmd_tbl cmdtp, bd_t bd, int flag, int argc,
09140113 SG	75	char *const argv[])
f046ccd1 EL	76	{
	77	}
	78
4431283c	79	#endif