mptable.equ

AMI 主板的BIOS源码。

SEND_ACCEPT_ERROR		equ	000000004h	; Send accept error
RECEIVE_ACCEPT_ERROR		equ	000000008h	; Receive accept error

SEND_ILLEGAL_VECTOR		equ	000000020h	; Send illegal vector
RECEIVE_ILLEGAL_VECTOR		equ	000000040h	; Receive illegal vector
ILLEGAL_REGISTER_ADDRESS	equ	000000080h	; Illegal register address


;*****************************************************************;
;*****************************************************************;
;	PCI.EQU							  ;
;*****************************************************************;
;*****************************************************************;

PCI_SPEC_VERSION	equ	0210h	;Version of PCI spec implemented

PCI_SPEC_CYCLE_M1	equ	10h
PCI_SPEC_CYCLE_M2	equ	20h
PCI_CFG_SPACE_M1	equ	01h
PCI_CFG_SPACE_M2	equ	02h

MAX_PCI_DEVICE_NUM	equ	1Fh	;Highest allowable PCI device number

; Standard PCI configuration register offsets and relevant values
;------------------------------------------------------------------------------
PCI_REG_VENDID		equ	00h	;PCI vendor ID register
PCI_REG_DEVID		equ	02h	;PCI device ID register
PCI_REG_COMMAND		equ	04h	;PCI command register
  CMD_DEV_DISABLE	equ	00h	;Disables device when written to cmd reg
  CMD_IO_SPACE		equ	01h	;IO space enable bit
  CMD_MEM_SPACE		equ	02h	;Memory space enable bit
  CMD_BUS_MASTER	equ	04h	;Bus master enable bit
  CMD_SPECIAL_CYCLE	equ	08h	;Special cycle enable bit
  CMD_MEM_INVALIDATE	equ	10h	;Memory write & invalidate enable bit
  CMD_PAL_SNOOP		equ	20h	;VGA palette snoop enable bit
  CMD_PARITY		equ	40h	;Parity error enable bit
  CMD_WAIT_CYCLE	equ	80h	;Wait cycle control bit
  CMD_SERR		equ	100h	;SERR# enable bit
  CMD_FAST_BTOB		equ	200h	;Fast back-to-back enable bit
PCI_REG_STATUS		equ	06h	;PCI status register
  STAT_RESET_ALL	equ	0FFFFh	;Resets all status bits
PCI_REG_REVID		equ	08h	;PCI revision ID register
PCI_REG_IF_TYPE		equ	09h	;PCI interface type register
PCI_REG_SUB_TYPE	equ	0Ah	;PCI sub type register
PCI_REG_BASE_TYPE	equ	0Bh	;PCI base type register
PCI_REG_LINE_SIZE	equ	0Ch	;PCI cache line size register
PCI_REG_LATENCY		equ	0Dh	;PCI latency timer register
PCI_REG_HEADER_TYPE	equ	0Eh	;PCI header type register
  MULTI_FUNC_BIT	equ	80h	;If set, device is multi function
  PCI_CFG_HEADER_STD	equ	00h	;Standard PCI config space
  PCI_CFG_HEADER_PPB	equ	01h	;PCI-PCI bridge config space
PCI_REG_BIST		equ	0Fh	;PCI built in self test register
PCI_REG_FIRST_BASE_ADD	equ	10h	;PCI first base address register
PCI_REG_LAST_BASE_ADD	equ	24h	;PCI last base address register
  PCI_BASE_ADD_PORT_BIT equ	01h	;If set, base add reg is for I/O port
  PCI_BASE_ADD_MEMTYPE	equ	06h	;Bits in lower word that are mem type
    PCI_BASE_ADD_MT_32	equ	00h	;Memory must be located at 32 bit add
    PCI_BASE_ADD_MT_20	equ	02h	;Memory must be located at 20 bit add
    PCI_BASE_ADD_MT_64	equ	04h	;Memory must be located at 64 bit add
  PCI_BASE_ADD_PREFETCH	equ	08h	;If set, memory is prefetchable
  PCI_BASE_ADD_MEMMASK	equ	0FFF0h	;Bits in lower word that are memory mask
  PCI_BASE_ADD_PORTMASK	equ	0FFFCh	;Bits in lower word that are port mask
PCI_REG_ROM_BASE_ADD	equ	30h	;PCI expansion ROM base address register
  PCI_BASE_ADD_ROMMASK	equ	0FC00h	;Bits in lower word that are ROM mask
PCI_REG_INT_LINE	equ	3Ch	;PCI interrupt line register
PCI_REG_INT_PIN		equ	3Dh	;PCI interrupt pin register
PCI_REG_MAX_GNT		equ	3Eh	;PCI max grant register
PCI_REG_MAX_LAT		equ	3Fh	;PCI max latency register


PCI_REG_MAX_ADDRESS	equ	0FF00h	;Invalid PCI register address bits
PCI_REG_ADDRESS_BYTE	equ	PCI_REG_MAX_ADDRESS + 0000h
PCI_REG_ADDRESS_WORD	equ	PCI_REG_MAX_ADDRESS + 0001h
PCI_REG_ADDRESS_DWORD	equ	PCI_REG_MAX_ADDRESS + 0003h


; PCI Expansion ROM Header - At offset 0 in each PCI ROM image
;------------------------------------------------------------------------------
pci_rom_header		struc
pci_rom_signature	dw ?		;Always equal to AA55h
pci_rom_init_size	db ?		;Size in 512 byte blocks
pci_rom_init_entry	dd ?		;JMP instruction (entry point for init)
pci_rom_reserved	db 11h dup (?)
pci_rom_data_struc_ptr	dw ?		;Offset of PCI ROM Data Structure
pci_rom_header		ends


PCIR_SIGNATURE		equ 52494350h	;ASCII "PCIR" signature (see below)
PCIRD_CUR_STRUC_REV	equ 00h		;Current rev level of following struc

; PCI Expansion ROM Data Structure - Each ROM image should have one
;------------------------------------------------------------------------------
pci_rom_data_struc	struc
pcird_signature		dd ?		;Should equal to PCIR_SIGNATURE
pcird_vendid		dw ?		;PCI Vendor ID
pcird_devid		dw ?		;PCI Device ID
pcird_vpd_ptr		dw ?		;Pointer to Vital Product Data struc
pcird_struc_len		dw ?		;Length of this structure (18h)
pcird_struc_rev		db ?		;Revision number of this structure (00)
pcird_base_type		db ?		;Class code - base type
pcird_sub_type		db ?		;Class code - sub type
pcird_if_type		db ? 		;Class code - interface type
pcird_image_len		dw ?		;Length of this ROM image/512
pcird_code_rev		dw ?		;Vendor defined rev level of ROM code
pcird_code_type		db ?		;Type of code in image (see equ's below)
pcird_indicator		db ?		;Indocator flags (see equ's below)
pcird_reserved		dw ?
pci_rom_data_struc	ends


; Values for pcird_code_type - Indicates which processor this code is for
;------------------------------------------------------------------------------
PCI_ROM_CODE_X86	equ 00h		;Code is for x86/AT architecture
PCI_ROM_CODE_OPENBOOT	equ 01h		;Code is for OpenBoot architecture


; Defined bits in pcird_indicator
;------------------------------------------------------------------------------
PCIRD_IND_LAST_IMAGE	equ 80h		;Bit 7: If set, this image is the last



; PCI - PCI Bridge Constants and Structures
;==============================================================================

PCI_MAX_BUSSES	equ 16			;Maximum number of PCI busses in a
					; system.  This is 16 because busses
					; own I/O space in units of 4k
					; granularity.

; PCI-PCI Bridge configuration register offsets and relevant values
;------------------------------------------------------------------------------
PPB_REG_PRI_BUS_NUM	equ 18h		;Primary bus number register
PPB_REG_SEC_BUS_NUM	equ 19h		;Secondary bus number register
PPB_REG_SUB_BUS_NUM	equ 1Ah		;Subordinate bus number register
PPB_REG_IO_BASE		equ 1Ch		;I/O space base address register
PPB_REG_IO_LIMIT	equ 1Dh		;I/O space limit register
PPB_REG_MEM_BASE	equ 20h		;Memory space base address register
PPB_REG_MEM_LIMIT	equ 22h		;Memory space limit register
PPB_REG_PFMEM_BASE	equ 24h		;Prefetchable memory space base address
PPB_REG_PFMEM_LIMIT	equ 26h		;Prefetchable memory space limit reg
PPB_REG_PFMEM_BASE_U32	equ 28h		;Prefetchable memory base upper 32 bits
PPB_REG_PFMEM_LIMIT_U32	equ 2Ch		;Prefetchable memory limit upper 32 bits
PPB_REG_IO_BASE_U16	equ 30h		;I/O space base upper 16 bits
PPB_REG_IO_LIMIT_U16	equ 32h		;I/O space limit upper 16 bits
PPB_REG_BRIDGE_CONTROL	equ 3Eh		;Bridge control register
  BC_PARITY_ENABLE	equ 01h		;  Parity enable bit
  BC_SERR_ENABLE	equ 02h		;  SERR enable bit
  BC_ISA_ENABLE		equ 04h		;  ISA enable bit
  BC_VGA_ENABLE		equ 08h		;  VGA enable bit
  BC_MASTER_ABORT_MODE	equ 20h		;  Master abort mode behavior bit
  BC_SEC_BUS_RESET	equ 40h		;  Secondary bus reset bit
  BC_FAST_B2B_ENABLE	equ 80h		;  Fast back to back enable bit


; PCI Bus Table Entry Structure
;------------------------------------------------------------------------------
pci_bus_entry	struc
pbe_parent_bus		db ?		;Bus number of this bus's parent bus
pbe_parent_bus_dev	db ?		;Device/function number of this bus's
					;   bridge on parent bus
pbe_reserved		db 2 dup (?)	;Force size of struc to power of 2
pbe_bus_to_global_int	db 4 dup (?)	;This bus's Int A/B/C/D map to these
pbe_io_start		dw ?		;Start of this bus's I/O space
pbe_reserved2		dw ?		;So pbe_io_start may be accessed as dword
pbe_io_size		dw ?		;Size of this bus's I/O space
pbe_reserved3		dw ?		;So pbe_io_size may be accessed as dword
pbe_mem_start		dd ?		;Start of this bus's memory space
pbe_mem_size		dd ?		;Size of this bus's memory space
pbe_pfmem_start		dd ?		;Start of this bus's prefetchable memory
pbe_pfmem_size		dd ?		;Size of this bus's prefetchable memory

pbe_io_local_start	dw ?		;Start of this bus's local device's I/O
pbe_reserved4		dw ?
pbe_mem_local_start	dd ?		;Start of this bus's local device's mem
pbe_pfmem_local_start	dd ?		;Start of this bus's local device's pfmem
pbe_reserved5		db 4 dup (?)	;Force size of struc to power of 2

pbe_reserved6		db 16 dup (?)	;Force size of struc to power of 2

pci_bus_entry	ends

PCI_BUS_ENTRY_SIZE_SHIFT	equ 6	;Size of above structure Log 2


; PCI IRQ Routing Table Entry Structure
;------------------------------------------------------------------------------
pci_irq_entry	struc
pirq_bus_number		db ?		;PCI bus number of device
pirq_device_number	db ?		;PCI device number of device (in upper 5 bits)
pirq_inta_reg		db ?		;Chipset register for this dev's Int A Pin
pirq_inta_irqs		dw ?		;Bitmap of IRQs routable to Int A Pin
pirq_intb_reg		db ?		;Chipset register for this dev's Int B Pin
pirq_intb_irqs		dw ?		;Bitmap of IRQs routable to Int B Pin
pirq_intc_reg		db ?		;Chipset register for this dev's Int C Pin
pirq_intc_irqs		dw ?		;Bitmap of IRQs routable to Int C Pin
pirq_intd_reg		db ?		;Chipset register for this dev's Int D Pin
pirq_intd_irqs		dw ?		;Bitmap of IRQs routable to Int D Pin
pirq_phys_slot		db ?		;Physical slot number of device
pirq_reserved		db ?
pci_irq_entry	ends

;*****************************************************************;
;*****************************************************************;
;**                                                             **;
;**      (C)Copyright 1985-1996, American Megatrends, Inc.      **;
;**                                                             **;
;**                     All Rights Reserved.                    **;
;**                                                             **;
;**           6145-F Northbelt Pkwy, Norcross, GA 30071         **;
;**                                                             **;
;**                     Phone [phone]                    **;
;**                                                             **;
;*****************************************************************;
;*****************************************************************;