forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
149 lines
3.8 KiB
149 lines
3.8 KiB
/* |
|
* This file is subject to the terms and conditions of the GNU General Public |
|
* License. See the file "COPYING" in the main directory of this archive |
|
* for more details. |
|
*/ |
|
#ifndef _ASM_PCI_H |
|
#define _ASM_PCI_H |
|
|
|
#include <linux/mm.h> |
|
|
|
#ifdef __KERNEL__ |
|
|
|
/* |
|
* This file essentially defines the interface between board |
|
* specific PCI code and MIPS common PCI code. Should potentially put |
|
* into include/asm/pci.h file. |
|
*/ |
|
|
|
#include <linux/ioport.h> |
|
#include <linux/list.h> |
|
#include <linux/of.h> |
|
|
|
#ifdef CONFIG_PCI_DRIVERS_LEGACY |
|
|
|
/* |
|
* Each pci channel is a top-level PCI bus seem by CPU. A machine with |
|
* multiple PCI channels may have multiple PCI host controllers or a |
|
* single controller supporting multiple channels. |
|
*/ |
|
struct pci_controller { |
|
struct list_head list; |
|
struct pci_bus *bus; |
|
struct device_node *of_node; |
|
|
|
struct pci_ops *pci_ops; |
|
struct resource *mem_resource; |
|
unsigned long mem_offset; |
|
struct resource *io_resource; |
|
unsigned long io_offset; |
|
unsigned long io_map_base; |
|
struct resource *busn_resource; |
|
|
|
#ifndef CONFIG_PCI_DOMAINS_GENERIC |
|
unsigned int index; |
|
/* For compatibility with current (as of July 2003) pciutils |
|
and XFree86. Eventually will be removed. */ |
|
unsigned int need_domain_info; |
|
#endif |
|
|
|
/* Optional access methods for reading/writing the bus number |
|
of the PCI controller */ |
|
int (*get_busno)(void); |
|
void (*set_busno)(int busno); |
|
}; |
|
|
|
/* |
|
* Used by boards to register their PCI busses before the actual scanning. |
|
*/ |
|
extern void register_pci_controller(struct pci_controller *hose); |
|
|
|
/* |
|
* board supplied pci irq fixup routine |
|
*/ |
|
extern int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin); |
|
|
|
/* Do platform specific device initialization at pci_enable_device() time */ |
|
extern int pcibios_plat_dev_init(struct pci_dev *dev); |
|
|
|
extern char * (*pcibios_plat_setup)(char *str); |
|
|
|
#ifdef CONFIG_OF |
|
/* this function parses memory ranges from a device node */ |
|
extern void pci_load_of_ranges(struct pci_controller *hose, |
|
struct device_node *node); |
|
#else |
|
static inline void pci_load_of_ranges(struct pci_controller *hose, |
|
struct device_node *node) {} |
|
#endif |
|
|
|
#ifdef CONFIG_PCI_DOMAINS_GENERIC |
|
static inline void set_pci_need_domain_info(struct pci_controller *hose, |
|
int need_domain_info) |
|
{ |
|
/* nothing to do */ |
|
} |
|
#elif defined(CONFIG_PCI_DOMAINS) |
|
static inline void set_pci_need_domain_info(struct pci_controller *hose, |
|
int need_domain_info) |
|
{ |
|
hose->need_domain_info = need_domain_info; |
|
} |
|
#endif /* CONFIG_PCI_DOMAINS */ |
|
|
|
#endif |
|
|
|
/* 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 */ |
|
static inline unsigned int pcibios_assign_all_busses(void) |
|
{ |
|
return 1; |
|
} |
|
|
|
extern unsigned long PCIBIOS_MIN_IO; |
|
extern unsigned long PCIBIOS_MIN_MEM; |
|
|
|
#define PCIBIOS_MIN_CARDBUS_IO 0x4000 |
|
|
|
#define HAVE_PCI_MMAP |
|
#define ARCH_GENERIC_PCI_MMAP_RESOURCE |
|
|
|
/* |
|
* Dynamic DMA mapping stuff. |
|
* MIPS has everything mapped statically. |
|
*/ |
|
|
|
#include <linux/types.h> |
|
#include <linux/slab.h> |
|
#include <linux/scatterlist.h> |
|
#include <linux/string.h> |
|
#include <asm/io.h> |
|
|
|
#ifdef CONFIG_PCI_DOMAINS_GENERIC |
|
static inline int pci_proc_domain(struct pci_bus *bus) |
|
{ |
|
return pci_domain_nr(bus); |
|
} |
|
#elif defined(CONFIG_PCI_DOMAINS) |
|
#define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index |
|
|
|
static inline int pci_proc_domain(struct pci_bus *bus) |
|
{ |
|
struct pci_controller *hose = bus->sysdata; |
|
return hose->need_domain_info; |
|
} |
|
#endif /* CONFIG_PCI_DOMAINS */ |
|
|
|
#endif /* __KERNEL__ */ |
|
|
|
/* Do platform specific device initialization at pci_enable_device() time */ |
|
extern int pcibios_plat_dev_init(struct pci_dev *dev); |
|
|
|
/* Chances are this interrupt is wired PC-style ... */ |
|
static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) |
|
{ |
|
return channel ? 15 : 14; |
|
} |
|
|
|
#endif /* _ASM_PCI_H */
|
|
|