/* auxio.c: Probing for the Sparc AUXIO register at boot time. * * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) */#include <linux/config.h>#include <linux/stddef.h>#include <linux/kernel.h>#include <linux/sched.h>#include <linux/smp.h>#include <linux/init.h>#include <linux/delay.h>#include <linux/ioport.h>#include <asm/oplib.h>#include <asm/io.h>#include <asm/auxio.h>#include <asm/sbus.h>#include <asm/ebus.h>#include <asm/fhc.h>#include <asm/spitfire.h>#include <asm/starfire.h>/* Probe and map in the Auxiliary I/O register */unsigned long auxio_register = 0;void __init auxio_probe(void){        struct sbus_bus *sbus;        struct sbus_dev *sdev = 0;        for_each_sbus(sbus) {                for_each_sbusdev(sdev, sbus) {                        if(!strcmp(sdev->prom_name, "auxio"))				goto found_sdev;                }        }found_sdev:	if (!sdev) {#ifdef CONFIG_PCI		struct linux_ebus *ebus;		struct linux_ebus_device *edev = 0;		unsigned long led_auxio;		for_each_ebus(ebus) {			for_each_ebusdev(edev, ebus) {				if (!strcmp(edev->prom_name, "auxio"))					goto ebus_done;			}		}	ebus_done:		if (edev) {			led_auxio = edev->resource[0].start;			outl(0x01, led_auxio);			return;		}#endif		auxio_register = 0UL;		return;	}	/* Map the register both read and write */	auxio_register = sbus_ioremap(&sdev->resource[0], 0,				      sdev->reg_addrs[0].reg_size, "auxiliaryIO");	TURN_ON_LED;}