// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2001 MontaVista Software Inc .
* Author : Jun Sun , jsun @ mvista . com or jsun @ junsun . net
* Copyright ( C ) 2000 , 2001 Ralf Baechle ( ralf @ gnu . org )
*
* Copyright ( C ) 2007 Lemote Inc . & Institute of Computing Technology
* Author : Fuxin Zhang , zhangfx @ lemote . com
*/
#include <linux/interrupt.h>
#include <linux/compiler.h>
#include <loongson.h>
static inline void bonito_irq_enable(struct irq_data *d)
{
LOONGSON_INTENSET = (1 << (d->irq - LOONGSON_IRQ_BASE));
mmiowb();
}
static inline void bonito_irq_disable(struct irq_data *d)
{
LOONGSON_INTENCLR = (1 << (d->irq - LOONGSON_IRQ_BASE));
mmiowb();
}
static struct irq_chip bonito_irq_type = {
.name = "bonito_irq" ,
.irq_mask = bonito_irq_disable,
.irq_unmask = bonito_irq_enable,
};
void bonito_irq_init(void )
{
u32 i;
for (i = LOONGSON_IRQ_BASE; i < LOONGSON_IRQ_BASE + 32 ; i++)
irq_set_chip_and_handler(i, &bonito_irq_type,
handle_level_irq);
#ifdef CONFIG_CPU_LOONGSON2E
i = LOONGSON_IRQ_BASE + 10 ;
if (request_irq(i, no_action, 0 , "dma_timeout" , NULL))
pr_err("Failed to request irq %d (dma_timeout)\n" , i);
#endif
}
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