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/* sbus.h: Defines for the Sun SBus.
*
* Copyright (C) 1996, 1999, 2007 David S. Miller (davem@davemloft.net)
*/
#ifndef _SPARC64_SBUS_H
#define _SPARC64_SBUS_H
#include <linux/dma-mapping.h>
#include <linux/ioport.h>
#include <linux/of_device.h>
#include <asm/oplib.h>
#include <asm/prom.h>
#include <asm/iommu.h>
#include <asm/scatterlist.h>
/* We scan which devices are on the SBus using the PROM node device
* tree. SBus devices are described in two different ways. You can
* either get an absolute address at which to access the device, or
* you can get a SBus 'slot' number and an offset within that slot.
*/
struct sbus_bus;
/* Linux SBUS device tables */
struct sbus_dev {
struct of_device ofdev;
struct sbus_bus *bus;
struct sbus_dev *next;
struct sbus_dev *child;
struct sbus_dev *parent;
int prom_node;
char prom_name[64];
int slot;
};
#define to_sbus_device(d) container_of(d, struct sbus_dev, ofdev.dev)
/* This struct describes the SBus(s) found on this machine. */
struct sbus_bus {
struct of_device ofdev;
struct sbus_dev *devices; /* Tree of SBUS devices */
struct sbus_bus *next; /* Next SBUS in system */
int prom_node; /* OBP node of SBUS */
char prom_name[64]; /* Usually "sbus" or "sbi" */
int clock_freq;
int portid;
};
#define to_sbus(d) container_of(d, struct sbus_bus, ofdev.dev)
extern void sbus_setup_iommu(struct sbus_bus *, struct device_node *);
extern int sbus_arch_preinit(void);
extern void sbus_arch_postinit(void);
#endif /* !(_SPARC64_SBUS_H) */
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