Viewing file:  pci.h (3.63 KB) -rw-r--r--
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#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 */
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