diff options
Diffstat (limited to 'include/asm-sparc/sbus.h')
| -rw-r--r-- | include/asm-sparc/sbus.h | 161 |
1 files changed, 8 insertions, 153 deletions
diff --git a/include/asm-sparc/sbus.h b/include/asm-sparc/sbus.h index f1d2fe1c9a3..8f29a197966 100644 --- a/include/asm-sparc/sbus.h +++ b/include/asm-sparc/sbus.h @@ -1,153 +1,8 @@ -/* - * sbus.h: Defines for the Sun SBus. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - */ - -#ifndef _SPARC_SBUS_H -#define _SPARC_SBUS_H - -#include <linux/dma-mapping.h> -#include <linux/ioport.h> - -#include <asm/oplib.h> -#include <asm/prom.h> -#include <asm/of_device.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. - */ - -/* The base address at which to calculate device OBIO addresses. */ -#define SUN_SBUS_BVADDR 0xf8000000 -#define SBUS_OFF_MASK 0x01ffffff - -/* These routines are used to calculate device address from slot - * numbers + offsets, and vice versa. - */ - -static inline unsigned long sbus_devaddr(int slotnum, unsigned long offset) -{ - return (unsigned long) (SUN_SBUS_BVADDR+((slotnum)<<25)+(offset)); -} - -static inline int sbus_dev_slot(unsigned long dev_addr) -{ - return (int) (((dev_addr)-SUN_SBUS_BVADDR)>>25); -} - -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; - - struct resource resource[PROMREG_MAX]; - - struct linux_prom_registers reg_addrs[PROMREG_MAX]; - int num_registers; - - struct linux_prom_ranges device_ranges[PROMREG_MAX]; - int num_device_ranges; - - unsigned int irqs[4]; - int num_irqs; -}; -#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; /* Link to devices on this SBus */ - struct sbus_bus *next; /* next SBus, if more than one SBus */ - int prom_node; /* PROM device tree node for this SBus */ - char prom_name[64]; /* Usually "sbus" or "sbi" */ - int clock_freq; - - struct linux_prom_ranges sbus_ranges[PROMREG_MAX]; - int num_sbus_ranges; - - int devid; - int board; -}; -#define to_sbus(d) container_of(d, struct sbus_bus, ofdev.dev) - -extern struct sbus_bus *sbus_root; - -static inline int -sbus_is_slave(struct sbus_dev *dev) -{ - /* XXX Have to write this for sun4c's */ - return 0; -} - -/* Device probing routines could find these handy */ -#define for_each_sbus(bus) \ - for((bus) = sbus_root; (bus); (bus)=(bus)->next) - -#define for_each_sbusdev(device, bus) \ - for((device) = (bus)->devices; (device); (device)=(device)->next) - -#define for_all_sbusdev(device, bus) \ - for ((bus) = sbus_root; (bus); (bus) = (bus)->next) \ - for ((device) = (bus)->devices; (device); (device) = (device)->next) - -/* Driver DVMA interfaces. */ -#define sbus_can_dma_64bit(sdev) (0) /* actually, sparc_cpu_model==sun4d */ -#define sbus_can_burst64(sdev) (0) /* actually, sparc_cpu_model==sun4d */ -extern void sbus_set_sbus64(struct sbus_dev *, int); -extern void sbus_fill_device_irq(struct sbus_dev *); - -/* These yield IOMMU mappings in consistent mode. */ -extern void *sbus_alloc_consistent(struct sbus_dev *, long, u32 *dma_addrp); -extern void sbus_free_consistent(struct sbus_dev *, long, void *, u32); -void prom_adjust_ranges(struct linux_prom_ranges *, int, - struct linux_prom_ranges *, int); - -#define SBUS_DMA_BIDIRECTIONAL DMA_BIDIRECTIONAL -#define SBUS_DMA_TODEVICE DMA_TO_DEVICE -#define SBUS_DMA_FROMDEVICE DMA_FROM_DEVICE -#define SBUS_DMA_NONE DMA_NONE - -/* All the rest use streaming mode mappings. */ -extern dma_addr_t sbus_map_single(struct sbus_dev *, void *, size_t, int); -extern void sbus_unmap_single(struct sbus_dev *, dma_addr_t, size_t, int); -extern int sbus_map_sg(struct sbus_dev *, struct scatterlist *, int, int); -extern void sbus_unmap_sg(struct sbus_dev *, struct scatterlist *, int, int); - -/* Finally, allow explicit synchronization of streamable mappings. */ -extern void sbus_dma_sync_single_for_cpu(struct sbus_dev *, dma_addr_t, size_t, int); -#define sbus_dma_sync_single sbus_dma_sync_single_for_cpu -extern void sbus_dma_sync_single_for_device(struct sbus_dev *, dma_addr_t, size_t, int); -extern void sbus_dma_sync_sg_for_cpu(struct sbus_dev *, struct scatterlist *, int, int); -#define sbus_dma_sync_sg sbus_dma_sync_sg_for_cpu -extern void sbus_dma_sync_sg_for_device(struct sbus_dev *, struct scatterlist *, int, int); - -/* Eric Brower (ebrower@usa.net) - * Translate SBus interrupt levels to ino values-- - * this is used when converting sbus "interrupts" OBP - * node values to "intr" node values, and is platform - * dependent. If only we could call OBP with - * "sbus-intr>cpu (sbint -- ino)" from kernel... - * See .../drivers/sbus/sbus.c for details. - */ -BTFIXUPDEF_CALL(unsigned int, sbint_to_irq, struct sbus_dev *sdev, unsigned int) -#define sbint_to_irq(sdev, sbint) BTFIXUP_CALL(sbint_to_irq)(sdev, sbint) - -extern void sbus_arch_bus_ranges_init(struct device_node *, struct sbus_bus *); -extern void sbus_setup_iommu(struct sbus_bus *, struct device_node *); -extern void sbus_setup_arch_props(struct sbus_bus *, struct device_node *); -extern int sbus_arch_preinit(void); -extern void sbus_arch_postinit(void); - -#endif /* !(_SPARC_SBUS_H) */ +#ifndef ___ASM_SPARC_SBUS_H +#define ___ASM_SPARC_SBUS_H +#if defined(__sparc__) && defined(__arch64__) +#include <asm-sparc/sbus_64.h> +#else +#include <asm-sparc/sbus_32.h> +#endif +#endif |