linux-imx

// SPDX-License-Identifier: GPL-2.0-or-later

/*

 *  WAX Device Driver

 *

 *  (c) Copyright 2000 The Puffin Group Inc.

 *

 *  by Helge Deller <deller@gmx.de>

 */

​

#include <linux/errno.h>

#include <linux/init.h>

#include <linux/interrupt.h>

#include <linux/ioport.h>

#include <linux/slab.h>

#include <linux/module.h>

#include <linux/types.h>

​

#include <asm/io.h>

#include <asm/hardware.h>

​

#include "gsc.h"

​

#define WAX_GSC_IRQ 7   /* Hardcoded Interrupt for GSC */

​

static void wax_choose_irq(struct parisc_device *dev, void *ctrl)

{

    int irq;

​

    switch (dev->id.sversion) {

        case 0x73:  irq =  1; break; /* i8042 General */

        case 0x8c:  irq =  6; break; /* Serial */

        case 0x90:  irq = 10; break; /* EISA */

        default:    return;      /* Unknown */

    }

​

    gsc_asic_assign_irq(ctrl, irq, &dev->irq);

​

    switch (dev->id.sversion) {

        case 0x73:  irq =  2; break; /* i8042 High-priority */

        case 0x90:  irq =  0; break; /* EISA NMI */

        default:    return;      /* No secondary IRQ */

    }

​

    gsc_asic_assign_irq(ctrl, irq, &dev->aux_irq);

}

​

static void __init

wax_init_irq(struct gsc_asic *wax)

{

    unsigned long base = wax->hpa;

​

    /* Wax-off */

    gsc_writel(0x00000000, base+OFFSET_IMR);

​

    /* clear pending interrupts */

    gsc_readl(base+OFFSET_IRR);

​

    /* We're not really convinced we want to reset the onboard

         * devices. Firmware does it for us...

     */

​

    /* Resets */

//  gsc_writel(0xFFFFFFFF, base+0x1000); /* HIL */