[linux-block.git] / include / asm-sh / pci.h

#ifndef __ASM_SH_PCI_H
#define __ASM_SH_PCI_H

#ifdef __KERNEL__

#include <linux/dma-mapping.h>

/* Can be used to override the logic in pci_scan_bus for skipping
   already-configured bus numbers - to be used for buggy BIOSes
   or architectures with incomplete PCI setup by the loader */

#define pcibios_assign_all_busses()	1
#define pcibios_scan_all_fns(a, b)	0

/*
 * A board can define one or more PCI channels that represent built-in (or
 * external) PCI controllers.
 */
struct pci_channel {
	struct pci_ops *pci_ops;
	struct resource *io_resource;
	struct resource *mem_resource;
	int first_devfn;
	int last_devfn;
};

/*
 * Each board initializes this array and terminates it with a NULL entry.
 */
extern struct pci_channel board_pci_channels[];

#define PCIBIOS_MIN_IO		board_pci_channels->io_resource->start
#define PCIBIOS_MIN_MEM		board_pci_channels->mem_resource->start

/*
 * I/O routine helpers
 */
#if defined(CONFIG_CPU_SUBTYPE_SH7780) || defined(CONFIG_CPU_SUBTYPE_SH7785)
#define PCI_IO_AREA		0xFE400000
#define PCI_IO_SIZE		0x00400000
#else
#define PCI_IO_AREA		0xFE240000
#define PCI_IO_SIZE		0X00040000
#endif

#define PCI_MEM_SIZE		0x01000000

#define SH4_PCIIOBR_MASK	0xFFFC0000
#define pci_ioaddr(addr)	(PCI_IO_AREA + (addr & ~SH4_PCIIOBR_MASK))

#if defined(CONFIG_PCI)
#define is_pci_ioaddr(port)		\
	(((port) >= PCIBIOS_MIN_IO) &&	\
	 ((port) < (PCIBIOS_MIN_IO + PCI_IO_SIZE)))
#define is_pci_memaddr(port)		\
	(((port) >= PCIBIOS_MIN_MEM) &&	\
	 ((port) < (PCIBIOS_MIN_MEM + PCI_MEM_SIZE)))
#else
#define is_pci_ioaddr(port)	(0)
#define is_pci_memaddr(port)	(0)
#endif

struct pci_dev;

extern void pcibios_set_master(struct pci_dev *dev);

static inline void pcibios_penalize_isa_irq(int irq, int active)
{
	/* We don't do dynamic PCI IRQ allocation */
}

/* Dynamic DMA mapping stuff.
 * SuperH has everything mapped statically like x86.
 */

/* The PCI address space does equal the physical memory
 * address space.  The networking and block device layers use
 * this boolean for bounce buffer decisions.
 */
#define PCI_DMA_BUS_IS_PHYS	(1)

#include <linux/types.h>
#include <linux/slab.h>
#include <asm/scatterlist.h>
#include <linux/string.h>
#include <asm/io.h>

/* pci_unmap_{single,page} being a nop depends upon the
 * configuration.
 */
#ifdef CONFIG_SH_PCIDMA_NONCOHERENT
#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)	\
	dma_addr_t ADDR_NAME;
#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)		\
	__u32 LEN_NAME;
#define pci_unmap_addr(PTR, ADDR_NAME)			\
	((PTR)->ADDR_NAME)
#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL)		\
	(((PTR)->ADDR_NAME) = (VAL))
#define pci_unmap_len(PTR, LEN_NAME)			\
	((PTR)->LEN_NAME)
#define pci_unmap_len_set(PTR, LEN_NAME, VAL)		\
	(((PTR)->LEN_NAME) = (VAL))
#else
#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
#define pci_unmap_addr(PTR, ADDR_NAME)		(0)
#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL)	do { } while (0)
#define pci_unmap_len(PTR, LEN_NAME)		(0)
#define pci_unmap_len_set(PTR, LEN_NAME, VAL)	do { } while (0)
#endif

#ifdef CONFIG_PCI
static inline void pci_dma_burst_advice(struct pci_dev *pdev,
					enum pci_dma_burst_strategy *strat,
					unsigned long *strategy_parameter)
{
	*strat = PCI_DMA_BURST_INFINITY;
	*strategy_parameter = ~0UL;
}
#endif

/* Board-specific fixup routines. */
void pcibios_fixup(void);
int pcibios_init_platform(void);
int pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin);

#ifdef CONFIG_PCI_AUTO
int pciauto_assign_resources(int busno, struct pci_channel *hose);
#endif

#endif /* __KERNEL__ */

/* generic pci stuff */
#include <asm-generic/pci.h>

/* generic DMA-mapping stuff */
#include <asm-generic/pci-dma-compat.h>

#endif /* __ASM_SH_PCI_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef __ASM_SH_PCI_H
	2	#define __ASM_SH_PCI_H
	3
	4	#ifdef __KERNEL__
	5
	6	#include <linux/dma-mapping.h>
	7
	8	/* Can be used to override the logic in pci_scan_bus for skipping
	9	already-configured bus numbers - to be used for buggy BIOSes
	10	or architectures with incomplete PCI setup by the loader */
	11
	12	#define pcibios_assign_all_busses() 1
	13	#define pcibios_scan_all_fns(a, b) 0
	14
	15	/*
	16	* A board can define one or more PCI channels that represent built-in (or
	17	* external) PCI controllers.
	18	*/
	19	struct pci_channel {
	20	struct pci_ops *pci_ops;
	21	struct resource *io_resource;
	22	struct resource *mem_resource;
	23	int first_devfn;
	24	int last_devfn;
	25	};
	26
	27	/*
	28	* Each board initializes this array and terminates it with a NULL entry.
	29	*/
	30	extern struct pci_channel board_pci_channels[];
	31
	32	#define PCIBIOS_MIN_IO board_pci_channels->io_resource->start
	33	#define PCIBIOS_MIN_MEM board_pci_channels->mem_resource->start
	34
959f85f8 PM	35	/*
	36	* I/O routine helpers
	37	*/
32351a28	38	#if defined(CONFIG_CPU_SUBTYPE_SH7780) \|\| defined(CONFIG_CPU_SUBTYPE_SH7785)
959f85f8 PM	39	#define PCI_IO_AREA 0xFE400000
	40	#define PCI_IO_SIZE 0x00400000
	41	#else
	42	#define PCI_IO_AREA 0xFE240000
	43	#define PCI_IO_SIZE 0X00040000
	44	#endif
	45
	46	#define PCI_MEM_SIZE 0x01000000
	47
	48	#define SH4_PCIIOBR_MASK 0xFFFC0000
	49	#define pci_ioaddr(addr) (PCI_IO_AREA + (addr & ~SH4_PCIIOBR_MASK))
	50
	51	#if defined(CONFIG_PCI)
	52	#define is_pci_ioaddr(port) \
	53	(((port) >= PCIBIOS_MIN_IO) && \
	54	((port) < (PCIBIOS_MIN_IO + PCI_IO_SIZE)))
	55	#define is_pci_memaddr(port) \
	56	(((port) >= PCIBIOS_MIN_MEM) && \
	57	((port) < (PCIBIOS_MIN_MEM + PCI_MEM_SIZE)))
	58	#else
	59	#define is_pci_ioaddr(port) (0)
	60	#define is_pci_memaddr(port) (0)
	61	#endif
	62
1da177e4 LT	63	struct pci_dev;
	64
	65	extern void pcibios_set_master(struct pci_dev *dev);
	66
c9c3e457	67	static inline void pcibios_penalize_isa_irq(int irq, int active)
1da177e4 LT	68	{
	69	/* We don't do dynamic PCI IRQ allocation */
	70	}
	71
	72	/* Dynamic DMA mapping stuff.
	73	* SuperH has everything mapped statically like x86.
	74	*/
	75
	76	/* The PCI address space does equal the physical memory
	77	* address space. The networking and block device layers use
	78	* this boolean for bounce buffer decisions.
	79	*/
	80	#define PCI_DMA_BUS_IS_PHYS (1)
	81
	82	#include <linux/types.h>
	83	#include <linux/slab.h>
	84	#include <asm/scatterlist.h>
	85	#include <linux/string.h>
	86	#include <asm/io.h>
	87
	88	/* pci_unmap_{single,page} being a nop depends upon the
	89	* configuration.
	90	*/
	91	#ifdef CONFIG_SH_PCIDMA_NONCOHERENT
	92	#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \
	93	dma_addr_t ADDR_NAME;
	94	#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \
	95	__u32 LEN_NAME;
	96	#define pci_unmap_addr(PTR, ADDR_NAME) \
	97	((PTR)->ADDR_NAME)
	98	#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
	99	(((PTR)->ADDR_NAME) = (VAL))
	100	#define pci_unmap_len(PTR, LEN_NAME) \
	101	((PTR)->LEN_NAME)
	102	#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
	103	(((PTR)->LEN_NAME) = (VAL))
	104	#else
	105	#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
	106	#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
	107	#define pci_unmap_addr(PTR, ADDR_NAME) (0)
	108	#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
	109	#define pci_unmap_len(PTR, LEN_NAME) (0)
	110	#define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
	111	#endif
	112
bb4a61b6	113	#ifdef CONFIG_PCI
e24c2d96 DM	114	static inline void pci_dma_burst_advice(struct pci_dev *pdev,
	115	enum pci_dma_burst_strategy *strat,
	116	unsigned long *strategy_parameter)
	117	{
	118	*strat = PCI_DMA_BURST_INFINITY;
	119	*strategy_parameter = ~0UL;
	120	}
bb4a61b6	121	#endif
e24c2d96	122
1da177e4	123	/* Board-specific fixup routines. */
959f85f8 PM	124	void pcibios_fixup(void);
	125	int pcibios_init_platform(void);
	126	int pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin);
1da177e4 LT	127
1da177e4 LT	128	#ifdef CONFIG_PCI_AUTO
959f85f8	129	int pciauto_assign_resources(int busno, struct pci_channel *hose);
1da177e4 LT	130	#endif
1da177e4 LT	131
1da177e4 LT	132	#endif /* __KERNEL__ */
	133
	134	/* generic pci stuff */
	135	#include <asm-generic/pci.h>
	136
	137	/* generic DMA-mapping stuff */
	138	#include <asm-generic/pci-dma-compat.h>
	139
	140	#endif /* __ASM_SH_PCI_H */
	141