diff options
Diffstat (limited to 'include/pci.h')
| -rw-r--r-- | include/pci.h | 475 |
1 files changed, 475 insertions, 0 deletions
diff --git a/include/pci.h b/include/pci.h new file mode 100644 index 0000000..4875375 --- /dev/null +++ b/include/pci.h @@ -0,0 +1,475 @@ +/* + * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Andreas Heppel <aheppel@sysgo.de> + * + * (C) Copyright 2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * aloong with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _PCI_H +#define _PCI_H + +/* + * Under PCI, each device has 256 bytes of configuration address space, + * of which the first 64 bytes are standardized as follows: + */ +#define PCI_VENDOR_ID 0x00 /* 16 bits */ +#define PCI_DEVICE_ID 0x02 /* 16 bits */ +#define PCI_COMMAND 0x04 /* 16 bits */ +#define PCI_COMMAND_IO 0x1 /* Enable response in I/O space */ +#define PCI_COMMAND_MEMORY 0x2 /* Enable response in Memory space */ +#define PCI_COMMAND_MASTER 0x4 /* Enable bus mastering */ +#define PCI_COMMAND_SPECIAL 0x8 /* Enable response to special cycles */ +#define PCI_COMMAND_INVALIDATE 0x10 /* Use memory write and invalidate */ +#define PCI_COMMAND_VGA_PALETTE 0x20 /* Enable palette snooping */ +#define PCI_COMMAND_PARITY 0x40 /* Enable parity checking */ +#define PCI_COMMAND_WAIT 0x80 /* Enable address/data stepping */ +#define PCI_COMMAND_SERR 0x100 /* Enable SERR */ +#define PCI_COMMAND_FAST_BACK 0x200 /* Enable back-to-back writes */ + +#define PCI_STATUS 0x06 /* 16 bits */ +#define PCI_STATUS_CAP_LIST 0x10 /* Support Capability List */ +#define PCI_STATUS_66MHZ 0x20 /* Support 66 Mhz PCI 2.1 bus */ +#define PCI_STATUS_UDF 0x40 /* Support User Definable Features [obsolete] */ +#define PCI_STATUS_FAST_BACK 0x80 /* Accept fast-back to back */ +#define PCI_STATUS_PARITY 0x100 /* Detected parity error */ +#define PCI_STATUS_DEVSEL_MASK 0x600 /* DEVSEL timing */ +#define PCI_STATUS_DEVSEL_FAST 0x000 +#define PCI_STATUS_DEVSEL_MEDIUM 0x200 +#define PCI_STATUS_DEVSEL_SLOW 0x400 +#define PCI_STATUS_SIG_TARGET_ABORT 0x800 /* Set on target abort */ +#define PCI_STATUS_REC_TARGET_ABORT 0x1000 /* Master ack of " */ +#define PCI_STATUS_REC_MASTER_ABORT 0x2000 /* Set on master abort */ +#define PCI_STATUS_SIG_SYSTEM_ERROR 0x4000 /* Set when we drive SERR */ +#define PCI_STATUS_DETECTED_PARITY 0x8000 /* Set on parity error */ + +#define PCI_CLASS_REVISION 0x08 /* High 24 bits are class, low 8 + revision */ +#define PCI_REVISION_ID 0x08 /* Revision ID */ +#define PCI_CLASS_PROG 0x09 /* Reg. Level Programming Interface */ +#define PCI_CLASS_DEVICE 0x0a /* Device class */ +#define PCI_CLASS_CODE 0x0b /* Device class code */ +#define PCI_CLASS_SUB_CODE 0x0a /* Device sub-class code */ + +#define PCI_CACHE_LINE_SIZE 0x0c /* 8 bits */ +#define PCI_LATENCY_TIMER 0x0d /* 8 bits */ +#define PCI_HEADER_TYPE 0x0e /* 8 bits */ +#define PCI_HEADER_TYPE_NORMAL 0 +#define PCI_HEADER_TYPE_BRIDGE 1 +#define PCI_HEADER_TYPE_CARDBUS 2 + +#define PCI_BIST 0x0f /* 8 bits */ +#define PCI_BIST_CODE_MASK 0x0f /* Return result */ +#define PCI_BIST_START 0x40 /* 1 to start BIST, 2 secs or less */ +#define PCI_BIST_CAPABLE 0x80 /* 1 if BIST capable */ + +/* + * Base addresses specify locations in memory or I/O space. + * Decoded size can be determined by writing a value of + * 0xffffffff to the register, and reading it back. Only + * 1 bits are decoded. + */ +#define PCI_BASE_ADDRESS_0 0x10 /* 32 bits */ +#define PCI_BASE_ADDRESS_1 0x14 /* 32 bits [htype 0,1 only] */ +#define PCI_BASE_ADDRESS_2 0x18 /* 32 bits [htype 0 only] */ +#define PCI_BASE_ADDRESS_3 0x1c /* 32 bits */ +#define PCI_BASE_ADDRESS_4 0x20 /* 32 bits */ +#define PCI_BASE_ADDRESS_5 0x24 /* 32 bits */ +#define PCI_BASE_ADDRESS_SPACE 0x01 /* 0 = memory, 1 = I/O */ +#define PCI_BASE_ADDRESS_SPACE_IO 0x01 +#define PCI_BASE_ADDRESS_SPACE_MEMORY 0x00 +#define PCI_BASE_ADDRESS_MEM_TYPE_MASK 0x06 +#define PCI_BASE_ADDRESS_MEM_TYPE_32 0x00 /* 32 bit address */ +#define PCI_BASE_ADDRESS_MEM_TYPE_1M 0x02 /* Below 1M [obsolete] */ +#define PCI_BASE_ADDRESS_MEM_TYPE_64 0x04 /* 64 bit address */ +#define PCI_BASE_ADDRESS_MEM_PREFETCH 0x08 /* prefetchable? */ +#define PCI_BASE_ADDRESS_MEM_MASK (~0x0fUL) +#define PCI_BASE_ADDRESS_IO_MASK (~0x03UL) +/* bit 1 is reserved if address_space = 1 */ + +/* Header type 0 (normal devices) */ +#define PCI_CARDBUS_CIS 0x28 +#define PCI_SUBSYSTEM_VENDOR_ID 0x2c +#define PCI_SUBSYSTEM_ID 0x2e +#define PCI_ROM_ADDRESS 0x30 /* Bits 31..11 are address, 10..1 reserved */ +#define PCI_ROM_ADDRESS_ENABLE 0x01 +#define PCI_ROM_ADDRESS_MASK (~0x7ffUL) + +#define PCI_CAPABILITY_LIST 0x34 /* Offset of first capability list entry */ + +/* 0x35-0x3b are reserved */ +#define PCI_INTERRUPT_LINE 0x3c /* 8 bits */ +#define PCI_INTERRUPT_PIN 0x3d /* 8 bits */ +#define PCI_MIN_GNT 0x3e /* 8 bits */ +#define PCI_MAX_LAT 0x3f /* 8 bits */ + +/* Header type 1 (PCI-to-PCI bridges) */ +#define PCI_PRIMARY_BUS 0x18 /* Primary bus number */ +#define PCI_SECONDARY_BUS 0x19 /* Secondary bus number */ +#define PCI_SUBORDINATE_BUS 0x1a /* Highest bus number behind the bridge */ +#define PCI_SEC_LATENCY_TIMER 0x1b /* Latency timer for secondary interface */ +#define PCI_IO_BASE 0x1c /* I/O range behind the bridge */ +#define PCI_IO_LIMIT 0x1d +#define PCI_IO_RANGE_TYPE_MASK 0x0f /* I/O bridging type */ +#define PCI_IO_RANGE_TYPE_16 0x00 +#define PCI_IO_RANGE_TYPE_32 0x01 +#define PCI_IO_RANGE_MASK ~0x0f +#define PCI_SEC_STATUS 0x1e /* Secondary status register, only bit 14 used */ +#define PCI_MEMORY_BASE 0x20 /* Memory range behind */ +#define PCI_MEMORY_LIMIT 0x22 +#define PCI_MEMORY_RANGE_TYPE_MASK 0x0f +#define PCI_MEMORY_RANGE_MASK ~0x0f +#define PCI_PREF_MEMORY_BASE 0x24 /* Prefetchable memory range behind */ +#define PCI_PREF_MEMORY_LIMIT 0x26 +#define PCI_PREF_RANGE_TYPE_MASK 0x0f +#define PCI_PREF_RANGE_TYPE_32 0x00 +#define PCI_PREF_RANGE_TYPE_64 0x01 +#define PCI_PREF_RANGE_MASK ~0x0f +#define PCI_PREF_BASE_UPPER32 0x28 /* Upper half of prefetchable memory range */ +#define PCI_PREF_LIMIT_UPPER32 0x2c +#define PCI_IO_BASE_UPPER16 0x30 /* Upper half of I/O addresses */ +#define PCI_IO_LIMIT_UPPER16 0x32 +/* 0x34 same as for htype 0 */ +/* 0x35-0x3b is reserved */ +#define PCI_ROM_ADDRESS1 0x38 /* Same as PCI_ROM_ADDRESS, but for htype 1 */ +/* 0x3c-0x3d are same as for htype 0 */ +#define PCI_BRIDGE_CONTROL 0x3e +#define PCI_BRIDGE_CTL_PARITY 0x01 /* Enable parity detection on secondary interface */ +#define PCI_BRIDGE_CTL_SERR 0x02 /* The same for SERR forwarding */ +#define PCI_BRIDGE_CTL_NO_ISA 0x04 /* Disable bridging of ISA ports */ +#define PCI_BRIDGE_CTL_VGA 0x08 /* Forward VGA addresses */ +#define PCI_BRIDGE_CTL_MASTER_ABORT 0x20 /* Report master aborts */ +#define PCI_BRIDGE_CTL_BUS_RESET 0x40 /* Secondary bus reset */ +#define PCI_BRIDGE_CTL_FAST_BACK 0x80 /* Fast Back2Back enabled on secondary interface */ + +/* Header type 2 (CardBus bridges) */ +#define PCI_CB_CAPABILITY_LIST 0x14 +/* 0x15 reserved */ +#define PCI_CB_SEC_STATUS 0x16 /* Secondary status */ +#define PCI_CB_PRIMARY_BUS 0x18 /* PCI bus number */ +#define PCI_CB_CARD_BUS 0x19 /* CardBus bus number */ +#define PCI_CB_SUBORDINATE_BUS 0x1a /* Subordinate bus number */ +#define PCI_CB_LATENCY_TIMER 0x1b /* CardBus latency timer */ +#define PCI_CB_MEMORY_BASE_0 0x1c +#define PCI_CB_MEMORY_LIMIT_0 0x20 +#define PCI_CB_MEMORY_BASE_1 0x24 +#define PCI_CB_MEMORY_LIMIT_1 0x28 +#define PCI_CB_IO_BASE_0 0x2c +#define PCI_CB_IO_BASE_0_HI 0x2e +#define PCI_CB_IO_LIMIT_0 0x30 +#define PCI_CB_IO_LIMIT_0_HI 0x32 +#define PCI_CB_IO_BASE_1 0x34 +#define PCI_CB_IO_BASE_1_HI 0x36 +#define PCI_CB_IO_LIMIT_1 0x38 +#define PCI_CB_IO_LIMIT_1_HI 0x3a +#define PCI_CB_IO_RANGE_MASK ~0x03 +/* 0x3c-0x3d are same as for htype 0 */ +#define PCI_CB_BRIDGE_CONTROL 0x3e +#define PCI_CB_BRIDGE_CTL_PARITY 0x01 /* Similar to standard bridge control register */ +#define PCI_CB_BRIDGE_CTL_SERR 0x02 +#define PCI_CB_BRIDGE_CTL_ISA 0x04 +#define PCI_CB_BRIDGE_CTL_VGA 0x08 +#define PCI_CB_BRIDGE_CTL_MASTER_ABORT 0x20 +#define PCI_CB_BRIDGE_CTL_CB_RESET 0x40 /* CardBus reset */ +#define PCI_CB_BRIDGE_CTL_16BIT_INT 0x80 /* Enable interrupt for 16-bit cards */ +#define PCI_CB_BRIDGE_CTL_PREFETCH_MEM0 0x100 /* Prefetch enable for both memory regions */ +#define PCI_CB_BRIDGE_CTL_PREFETCH_MEM1 0x200 +#define PCI_CB_BRIDGE_CTL_POST_WRITES 0x400 +#define PCI_CB_SUBSYSTEM_VENDOR_ID 0x40 +#define PCI_CB_SUBSYSTEM_ID 0x42 +#define PCI_CB_LEGACY_MODE_BASE 0x44 /* 16-bit PC Card legacy mode base address (ExCa) */ +/* 0x48-0x7f reserved */ + +/* Capability lists */ + +#define PCI_CAP_LIST_ID 0 /* Capability ID */ +#define PCI_CAP_ID_PM 0x01 /* Power Management */ +#define PCI_CAP_ID_AGP 0x02 /* Accelerated Graphics Port */ +#define PCI_CAP_ID_VPD 0x03 /* Vital Product Data */ +#define PCI_CAP_ID_SLOTID 0x04 /* Slot Identification */ +#define PCI_CAP_ID_MSI 0x05 /* Message Signalled Interrupts */ +#define PCI_CAP_ID_CHSWP 0x06 /* CompactPCI HotSwap */ +#define PCI_CAP_LIST_NEXT 1 /* Next capability in the list */ +#define PCI_CAP_FLAGS 2 /* Capability defined flags (16 bits) */ +#define PCI_CAP_SIZEOF 4 + +/* Power Management Registers */ + +#define PCI_PM_CAP_VER_MASK 0x0007 /* Version */ +#define PCI_PM_CAP_PME_CLOCK 0x0008 /* PME clock required */ +#define PCI_PM_CAP_AUX_POWER 0x0010 /* Auxilliary power support */ +#define PCI_PM_CAP_DSI 0x0020 /* Device specific initialization */ +#define PCI_PM_CAP_D1 0x0200 /* D1 power state support */ +#define PCI_PM_CAP_D2 0x0400 /* D2 power state support */ +#define PCI_PM_CAP_PME 0x0800 /* PME pin supported */ +#define PCI_PM_CTRL 4 /* PM control and status register */ +#define PCI_PM_CTRL_STATE_MASK 0x0003 /* Current power state (D0 to D3) */ +#define PCI_PM_CTRL_PME_ENABLE 0x0100 /* PME pin enable */ +#define PCI_PM_CTRL_DATA_SEL_MASK 0x1e00 /* Data select (??) */ +#define PCI_PM_CTRL_DATA_SCALE_MASK 0x6000 /* Data scale (??) */ +#define PCI_PM_CTRL_PME_STATUS 0x8000 /* PME pin status */ +#define PCI_PM_PPB_EXTENSIONS 6 /* PPB support extensions (??) */ +#define PCI_PM_PPB_B2_B3 0x40 /* Stop clock when in D3hot (??) */ +#define PCI_PM_BPCC_ENABLE 0x80 /* Bus power/clock control enable (??) */ +#define PCI_PM_DATA_REGISTER 7 /* (??) */ +#define PCI_PM_SIZEOF 8 + +/* AGP registers */ + +#define PCI_AGP_VERSION 2 /* BCD version number */ +#define PCI_AGP_RFU 3 /* Rest of capability flags */ +#define PCI_AGP_STATUS 4 /* Status register */ +#define PCI_AGP_STATUS_RQ_MASK 0xff000000 /* Maximum number of requests - 1 */ +#define PCI_AGP_STATUS_SBA 0x0200 /* Sideband addressing supported */ +#define PCI_AGP_STATUS_64BIT 0x0020 /* 64-bit addressing supported */ +#define PCI_AGP_STATUS_FW 0x0010 /* FW transfers supported */ +#define PCI_AGP_STATUS_RATE4 0x0004 /* 4x transfer rate supported */ +#define PCI_AGP_STATUS_RATE2 0x0002 /* 2x transfer rate supported */ +#define PCI_AGP_STATUS_RATE1 0x0001 /* 1x transfer rate supported */ +#define PCI_AGP_COMMAND 8 /* Control register */ +#define PCI_AGP_COMMAND_RQ_MASK 0xff000000 /* Master: Maximum number of requests */ +#define PCI_AGP_COMMAND_SBA 0x0200 /* Sideband addressing enabled */ +#define PCI_AGP_COMMAND_AGP 0x0100 /* Allow processing of AGP transactions */ +#define PCI_AGP_COMMAND_64BIT 0x0020 /* Allow processing of 64-bit addresses */ +#define PCI_AGP_COMMAND_FW 0x0010 /* Force FW transfers */ +#define PCI_AGP_COMMAND_RATE4 0x0004 /* Use 4x rate */ +#define PCI_AGP_COMMAND_RATE2 0x0002 /* Use 4x rate */ +#define PCI_AGP_COMMAND_RATE1 0x0001 /* Use 4x rate */ +#define PCI_AGP_SIZEOF 12 + +/* Slot Identification */ + +#define PCI_SID_ESR 2 /* Expansion Slot Register */ +#define PCI_SID_ESR_NSLOTS 0x1f /* Number of expansion slots available */ +#define PCI_SID_ESR_FIC 0x20 /* First In Chassis Flag */ +#define PCI_SID_CHASSIS_NR 3 /* Chassis Number */ + +/* Message Signalled Interrupts registers */ + +#define PCI_MSI_FLAGS 2 /* Various flags */ +#define PCI_MSI_FLAGS_64BIT 0x80 /* 64-bit addresses allowed */ +#define PCI_MSI_FLAGS_QSIZE 0x70 /* Message queue size configured */ +#define PCI_MSI_FLAGS_QMASK 0x0e /* Maximum queue size available */ +#define PCI_MSI_FLAGS_ENABLE 0x01 /* MSI feature enabled */ +#define PCI_MSI_RFU 3 /* Rest of capability flags */ +#define PCI_MSI_ADDRESS_LO 4 /* Lower 32 bits */ +#define PCI_MSI_ADDRESS_HI 8 /* Upper 32 bits (if PCI_MSI_FLAGS_64BIT set) */ +#define PCI_MSI_DATA_32 8 /* 16 bits of data for 32-bit devices */ +#define PCI_MSI_DATA_64 12 /* 16 bits of data for 64-bit devices */ + +#define PCI_MAX_PCI_DEVICES 32 +#define PCI_MAX_PCI_FUNCTIONS 8 + +/* Include the ID list */ + +#include <pci_ids.h> + +struct pci_region { + unsigned long bus_start; /* Start on the bus */ + unsigned long phys_start; /* Start in physical address space */ + unsigned long size; /* Size */ + unsigned long flags; /* Resource flags */ + + unsigned long bus_lower; +}; + +#define PCI_REGION_MEM 0x00000000 /* PCI memory space */ +#define PCI_REGION_IO 0x00000001 /* PCI IO space */ +#define PCI_REGION_TYPE 0x00000001 + +#define PCI_REGION_MEMORY 0x00000100 /* System memory */ +#define PCI_REGION_RO 0x00000200 /* Read-only memory */ + +extern __inline__ void pci_set_region(struct pci_region *reg, + unsigned long bus_start, + unsigned long phys_start, + unsigned long size, + unsigned long flags) { + reg->bus_start = bus_start; + reg->phys_start = phys_start; + reg->size = size; + reg->flags = flags; +} + +typedef int pci_dev_t; + +#define PCI_BUS(d) (((d) >> 16) & 0xff) +#define PCI_DEV(d) (((d) >> 11) & 0x1f) +#define PCI_FUNC(d) (((d) >> 8) & 0x7) +#define PCI_BDF(b,d,f) ((b) << 16 | (d) << 11 | (f) << 8) + +#define PCI_ANY_ID (~0) + +struct pci_device_id { + unsigned int vendor, device; /* Vendor and device ID or PCI_ANY_ID */ +}; + +struct pci_controller; + +struct pci_config_table { + unsigned int vendor, device; /* Vendor and device ID or PCI_ANY_ID */ + unsigned int class; /* Class ID, or PCI_ANY_ID */ + unsigned int bus; /* Bus number, or PCI_ANY_ID */ + unsigned int dev; /* Device number, or PCI_ANY_ID */ + unsigned int func; /* Function number, or PCI_ANY_ID */ + + void (*config_device)(struct pci_controller* hose, pci_dev_t dev, + struct pci_config_table *); + unsigned long priv[3]; +}; + +extern void pci_cfgfunc_nothing(struct pci_controller* hose, pci_dev_t dev, + struct pci_config_table *); +extern void pci_cfgfunc_config_device(struct pci_controller* hose, pci_dev_t dev, + struct pci_config_table *); + +#define MAX_PCI_REGIONS 7 + +/* + * Structure of a PCI controller (host bridge) + */ +struct pci_controller { + struct pci_controller *next; + + int first_busno; + int last_busno; + + volatile unsigned int *cfg_addr; + volatile unsigned char *cfg_data; + + struct pci_region regions[MAX_PCI_REGIONS]; + int region_count; + + struct pci_config_table *config_table; + + void (*fixup_irq)(struct pci_controller *, pci_dev_t); + + /* Low-level architecture-dependent routines */ + int (*read_byte)(struct pci_controller*, pci_dev_t, int where, u8 *); + int (*read_word)(struct pci_controller*, pci_dev_t, int where, u16 *); + int (*read_dword)(struct pci_controller*, pci_dev_t, int where, u32 *); + int (*write_byte)(struct pci_controller*, pci_dev_t, int where, u8); + int (*write_word)(struct pci_controller*, pci_dev_t, int where, u16); + int (*write_dword)(struct pci_controller*, pci_dev_t, int where, u32); + + /* Used by auto config */ + struct pci_region *pci_mem, *pci_io; + + /* Used by ppc405 autoconfig*/ + struct pci_region *pci_fb; +}; + +extern __inline__ void pci_set_ops(struct pci_controller *hose, + int (*read_byte)(struct pci_controller*, + pci_dev_t, int where, u8 *), + int (*read_word)(struct pci_controller*, + pci_dev_t, int where, u16 *), + int (*read_dword)(struct pci_controller*, + pci_dev_t, int where, u32 *), + int (*write_byte)(struct pci_controller*, + pci_dev_t, int where, u8), + int (*write_word)(struct pci_controller*, + pci_dev_t, int where, u16), + int (*write_dword)(struct pci_controller*, + pci_dev_t, int where, u32)) { + hose->read_byte = read_byte; + hose->read_word = read_word; + hose->read_dword = read_dword; + hose->write_byte = write_byte; + hose->write_word = write_word; + hose->write_dword = write_dword; +} + +extern void pci_setup_indirect(struct pci_controller* hose, u32 cfg_addr, u32 cfg_data); + +extern unsigned long pci_hose_bus_to_phys(struct pci_controller* hose, + unsigned long addr, unsigned long flags); +extern unsigned long pci_hose_phys_to_bus(struct pci_controller* hose, + unsigned long addr, unsigned long flags); + +#define pci_phys_to_bus(dev, addr, flags) \ + pci_hose_phys_to_bus(pci_bus_to_hose(PCI_BUS(dev)), (addr), (flags)) +#define pci_bus_to_phys(dev, addr, flags) \ + pci_hose_bus_to_phys(pci_bus_to_hose(PCI_BUS(dev)), (addr), (flags)) + +#define pci_phys_to_mem(dev, addr) pci_phys_to_bus((dev), (addr), PCI_REGION_MEM) +#define pci_mem_to_phys(dev, addr) pci_bus_to_phys((dev), (addr), PCI_REGION_MEM) +#define pci_phys_to_io(dev, addr) pci_phys_to_bus((dev), (addr), PCI_REGION_IO) +#define pci_io_to_phys(dev, addr) pci_bus_to_phys((dev), (addr), PCI_REGION_IO) + +extern int pci_hose_read_config_byte(struct pci_controller *hose, + pci_dev_t dev, int where, u8 *val); +extern int pci_hose_read_config_word(struct pci_controller *hose, + pci_dev_t dev, int where, u16 *val); +extern int pci_hose_read_config_dword(struct pci_controller *hose, + pci_dev_t dev, int where, u32 *val); +extern int pci_hose_write_config_byte(struct pci_controller *hose, + pci_dev_t dev, int where, u8 val); +extern int pci_hose_write_config_word(struct pci_controller *hose, + pci_dev_t dev, int where, u16 val); +extern int pci_hose_write_config_dword(struct pci_controller *hose, + pci_dev_t dev, int where, u32 val); + +extern int pci_read_config_byte(pci_dev_t dev, int where, u8 *val); +extern int pci_read_config_word(pci_dev_t dev, int where, u16 *val); +extern int pci_read_config_dword(pci_dev_t dev, int where, u32 *val); +extern int pci_write_config_byte(pci_dev_t dev, int where, u8 val); +extern int pci_write_config_word(pci_dev_t dev, int where, u16 val); +extern int pci_write_config_dword(pci_dev_t dev, int where, u32 val); + +extern int pci_hose_read_config_byte_via_dword(struct pci_controller *hose, + pci_dev_t dev, int where, u8 *val); +extern int pci_hose_read_config_word_via_dword(struct pci_controller *hose, + pci_dev_t dev, int where, u16 *val); +extern int pci_hose_write_config_byte_via_dword(struct pci_controller *hose, + pci_dev_t dev, int where, u8 val); +extern int pci_hose_write_config_word_via_dword(struct pci_controller *hose, + pci_dev_t dev, int where, u16 val); + +extern void pci_register_hose(struct pci_controller* hose); +extern struct pci_controller* pci_bus_to_hose(int bus); + +extern int pci_hose_scan(struct pci_controller *hose); +extern int pci_hose_scan_bus(struct pci_controller *hose, int bus); + +extern void pciauto_region_init(struct pci_region* res); +extern void pciauto_region_align(struct pci_region *res, unsigned long size); +extern int pciauto_region_allocate(struct pci_region* res, unsigned int size, unsigned int *bar); +extern void pciauto_setup_device(struct pci_controller *hose, + pci_dev_t dev, int bars_num, + struct pci_region *mem, + struct pci_region *io); +void pciauto_config_device(struct pci_controller *hose, pci_dev_t dev); + +extern pci_dev_t pci_find_device (unsigned int vendor, unsigned int device, int index); +extern pci_dev_t pci_find_devices (struct pci_device_id *ids, int index); + +extern int pci_hose_config_device(struct pci_controller *hose, + pci_dev_t dev, + unsigned long io, + unsigned long mem, + unsigned long command); + +#ifdef CONFIG_MPC824X +extern void pci_mpc824x_init (struct pci_controller *hose); +#endif + +#endif /* _PCI_H */ |