blob: aa8043089bb695133f19992d87deed7576c4f2db [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef __ASM_SH64_PCI_H
2#define __ASM_SH64_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
14/*
15 * These are currently the correct values for the STM overdrive board
16 * We need some way of setting this on a board specific way, it will
17 * not be the same on other boards I think
18 */
19#if defined(CONFIG_CPU_SUBTYPE_SH5_101) || defined(CONFIG_CPU_SUBTYPE_SH5_103)
20#define PCIBIOS_MIN_IO 0x2000
21#define PCIBIOS_MIN_MEM 0x40000000
22#endif
23
24extern void pcibios_set_master(struct pci_dev *dev);
25
26/*
27 * Set penalize isa irq function
28 */
David Shaohua Lic9c3e452005-04-01 00:07:31 -050029static inline void pcibios_penalize_isa_irq(int irq, int active)
Linus Torvalds1da177e2005-04-16 15:20:36 -070030{
31 /* We don't do dynamic PCI IRQ allocation */
32}
33
34/* Dynamic DMA mapping stuff.
35 * SuperH has everything mapped statically like x86.
36 */
37
38/* The PCI address space does equal the physical memory
39 * address space. The networking and block device layers use
40 * this boolean for bounce buffer decisions.
41 */
42#define PCI_DMA_BUS_IS_PHYS (1)
43
44#include <linux/types.h>
45#include <linux/slab.h>
46#include <asm/scatterlist.h>
47#include <linux/string.h>
48#include <asm/io.h>
49
50/* pci_unmap_{single,page} being a nop depends upon the
51 * configuration.
52 */
53#ifdef CONFIG_SH_PCIDMA_NONCOHERENT
54#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \
55 dma_addr_t ADDR_NAME;
56#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \
57 __u32 LEN_NAME;
58#define pci_unmap_addr(PTR, ADDR_NAME) \
59 ((PTR)->ADDR_NAME)
60#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
61 (((PTR)->ADDR_NAME) = (VAL))
62#define pci_unmap_len(PTR, LEN_NAME) \
63 ((PTR)->LEN_NAME)
64#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
65 (((PTR)->LEN_NAME) = (VAL))
66#else
67#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
68#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
69#define pci_unmap_addr(PTR, ADDR_NAME) (0)
70#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
71#define pci_unmap_len(PTR, LEN_NAME) (0)
72#define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
73#endif
74
75/* Not supporting more than 32-bit PCI bus addresses now, but
76 * must satisfy references to this function. Change if needed.
77 */
78#define pci_dac_dma_supported(pci_dev, mask) (0)
79
80/* These macros should be used after a pci_map_sg call has been done
81 * to get bus addresses of each of the SG entries and their lengths.
82 * You should only work with the number of sg entries pci_map_sg
83 * returns, or alternatively stop on the first sg_dma_len(sg) which
84 * is 0.
85 */
86#define sg_dma_address(sg) ((sg)->dma_address)
87#define sg_dma_len(sg) ((sg)->length)
88
Andrew Mortonbb4a61b2005-06-06 23:07:46 -070089#ifdef CONFIG_PCI
David S. Millere24c2d92005-06-02 12:55:50 -070090static inline void pci_dma_burst_advice(struct pci_dev *pdev,
91 enum pci_dma_burst_strategy *strat,
92 unsigned long *strategy_parameter)
93{
94 *strat = PCI_DMA_BURST_INFINITY;
95 *strategy_parameter = ~0UL;
96}
Andrew Mortonbb4a61b2005-06-06 23:07:46 -070097#endif
David S. Millere24c2d92005-06-02 12:55:50 -070098
Linus Torvalds1da177e2005-04-16 15:20:36 -070099/* Board-specific fixup routines. */
100extern void pcibios_fixup(void);
101extern void pcibios_fixup_irqs(void);
102
103#ifdef CONFIG_PCI_AUTO
104extern int pciauto_assign_resources(int busno, struct pci_channel *hose);
105#endif
106
107static inline void pcibios_add_platform_entries(struct pci_dev *dev)
108{
109}
110
111#endif /* __KERNEL__ */
112
113/* generic pci stuff */
114#include <asm-generic/pci.h>
115
116/* generic DMA-mapping stuff */
117#include <asm-generic/pci-dma-compat.h>
118
119#endif /* __ASM_SH64_PCI_H */
120