1 /*
2 * This program is free software; you can redistribute it and/or
3 * modify it under the terms of the GNU General Public License
4 * as published by the Free Software Foundation; either version
5 * 2 of the License, or (at your option) any later version.
6 *
7 * Based on powerpc version
8 */
9
10 #ifndef __ASM_MICROBLAZE_PCI_H
11 #define __ASM_MICROBLAZE_PCI_H
12 #ifdef __KERNEL__
13
14 #include <linux/types.h>
15 #include <linux/slab.h>
16 #include <linux/string.h>
17 #include <linux/dma-mapping.h>
18 #include <linux/pci.h>
19 #include <linux/scatterlist.h>
20
21 #include <asm/io.h>
22 #include <asm/prom.h>
23 #include <asm/pci-bridge.h>
24
25 #define PCIBIOS_MIN_IO 0x1000
26 #define PCIBIOS_MIN_MEM 0x10000000
27
28 /* Values for the `which' argument to sys_pciconfig_iobase syscall. */
29 #define IOBASE_BRIDGE_NUMBER 0
30 #define IOBASE_MEMORY 1
31 #define IOBASE_IO 2
32 #define IOBASE_ISA_IO 3
33 #define IOBASE_ISA_MEM 4
34
35 #define pcibios_scan_all_fns(a, b) 0
36
37 /*
38 * Set this to 1 if you want the kernel to re-assign all PCI
39 * bus numbers (don't do that on ppc64 yet !)
40 */
41 #define pcibios_assign_all_busses() 0
42
43 extern int pci_domain_nr(struct pci_bus *bus);
44
45 /* Decide whether to display the domain number in /proc */
46 extern int pci_proc_domain(struct pci_bus *bus);
47
48 struct vm_area_struct;
49
50 /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
51 #define HAVE_PCI_MMAP 1
52 #define arch_can_pci_mmap_io() 1
53
54 extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val,
55 size_t count);
56 extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val,
57 size_t count);
58 extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
59 struct vm_area_struct *vma,
60 enum pci_mmap_state mmap_state);
61
62 #define HAVE_PCI_LEGACY 1
63
64 /* The PCI address space does equal the physical memory
65 * address space (no IOMMU). The IDE and SCSI device layers use
66 * this boolean for bounce buffer decisions.
67 */
68 #define PCI_DMA_BUS_IS_PHYS (1)
69
70 extern void pcibios_claim_one_bus(struct pci_bus *b);
71
72 extern void pcibios_finish_adding_to_bus(struct pci_bus *bus);
73
74 extern void pcibios_resource_survey(void);
75
76 struct file;
77 extern pgprot_t pci_phys_mem_access_prot(struct file *file,
78 unsigned long pfn,
79 unsigned long size,
80 pgprot_t prot);
81
82 #define HAVE_ARCH_PCI_RESOURCE_TO_USER
83
84 /* This part of code was originally in xilinx-pci.h */
85 #ifdef CONFIG_PCI_XILINX
86 extern void __init xilinx_pci_init(void);
87 #else
xilinx_pci_init(void)88 static inline void __init xilinx_pci_init(void) { return; }
89 #endif
90
91 #endif /* __KERNEL__ */
92 #endif /* __ASM_MICROBLAZE_PCI_H */
93