6 #include <linux/dma-mapping.h>
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 */
12 #define pcibios_assign_all_busses() 1
13 #define pcibios_scan_all_fns(a, b) 0
16 * A board can define one or more PCI channels that represent built-in (or
17 * external) PCI controllers.
20 int (*init)(struct pci_channel *chan);
21 struct pci_ops *pci_ops;
22 struct resource *io_resource;
23 struct resource *mem_resource;
27 unsigned long reg_base;
28 unsigned long io_base;
32 * Each board initializes this array and terminates it with a NULL entry.
34 extern struct pci_channel board_pci_channels[];
36 /* ugly as hell, but makes drivers/pci/setup-res.c compile and work */
37 #define __PCI_CHAN(bus) ((struct pci_channel *)bus->sysdata)
38 #define PCIBIOS_MIN_IO __PCI_CHAN(bus)->io_resource->start
39 #define PCIBIOS_MIN_MEM __PCI_CHAN(bus)->mem_resource->start
44 #if defined(CONFIG_CPU_SUBTYPE_SH7780) || defined(CONFIG_CPU_SUBTYPE_SH7785)
45 #define PCI_IO_AREA 0xFE400000
46 #define PCI_IO_SIZE 0x00400000
47 #elif defined(CONFIG_CPU_SH5)
48 extern unsigned long PCI_IO_AREA;
49 #define PCI_IO_SIZE 0x00010000
51 #define PCI_IO_AREA 0xFE240000
52 #define PCI_IO_SIZE 0x00040000
55 #define PCI_MEM_SIZE 0x01000000
57 #define SH4_PCIIOBR_MASK 0xFFFC0000
58 #define pci_ioaddr(addr) (PCI_IO_AREA + (addr & ~SH4_PCIIOBR_MASK))
60 #if defined(CONFIG_PCI)
61 #define is_pci_ioaddr(port) \
62 (((port) >= PCIBIOS_MIN_IO) && \
63 ((port) < (PCIBIOS_MIN_IO + PCI_IO_SIZE)))
65 #define is_pci_ioaddr(port) (0)
70 extern void pcibios_set_master(struct pci_dev *dev);
72 static inline void pcibios_penalize_isa_irq(int irq, int active)
74 /* We don't do dynamic PCI IRQ allocation */
77 /* Dynamic DMA mapping stuff.
78 * SuperH has everything mapped statically like x86.
81 /* The PCI address space does equal the physical memory
82 * address space. The networking and block device layers use
83 * this boolean for bounce buffer decisions.
85 #define PCI_DMA_BUS_IS_PHYS (1)
87 #include <linux/types.h>
88 #include <linux/slab.h>
89 #include <asm/scatterlist.h>
90 #include <linux/string.h>
93 /* pci_unmap_{single,page} being a nop depends upon the
96 #ifdef CONFIG_SH_PCIDMA_NONCOHERENT
97 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \
99 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \
101 #define pci_unmap_addr(PTR, ADDR_NAME) \
103 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
104 (((PTR)->ADDR_NAME) = (VAL))
105 #define pci_unmap_len(PTR, LEN_NAME) \
107 #define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
108 (((PTR)->LEN_NAME) = (VAL))
110 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
111 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
112 #define pci_unmap_addr(PTR, ADDR_NAME) (0)
113 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
114 #define pci_unmap_len(PTR, LEN_NAME) (0)
115 #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
119 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
120 enum pci_dma_burst_strategy *strat,
121 unsigned long *strategy_parameter)
123 *strat = PCI_DMA_BURST_INFINITY;
124 *strategy_parameter = ~0UL;
127 static inline int __is_pci_memory(unsigned long phys_addr, unsigned long size)
129 struct pci_channel *p;
130 struct resource *res;
132 for (p = board_pci_channels; p->init; p++) {
133 res = p->mem_resource;
134 if (p->enabled && (phys_addr >= res->start) &&
135 (phys_addr + size) <= (res->end + 1))
141 static inline int __is_pci_memory(unsigned long phys_addr, unsigned long size)
147 /* Board-specific fixup routines. */
148 void pcibios_fixup(void);
149 int pcibios_init_platform(void);
150 int pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin);
152 #ifdef CONFIG_PCI_AUTO
153 int pciauto_assign_resources(int busno, struct pci_channel *hose);
156 #endif /* __KERNEL__ */
158 /* generic pci stuff */
159 #include <asm-generic/pci.h>
161 /* generic DMA-mapping stuff */
162 #include <asm-generic/pci-dma-compat.h>
164 #endif /* __ASM_SH_PCI_H */