pcipost.asm

AWARD BIOS源代码,支持的CHIPSET请看文件,有同型号的板子烧上去就可以跑

;	[]===========================================================[]
;
;	NOTICE: THIS PROGRAM BELONGS TO AWARD SOFTWARE INTERNATIONAL(R)
;	        INC. IT IS CONSIDERED A TRADE SECRET AND IS NOT TO BE
;	        DIVULGED OR USED BY PARTIES WHO HAVE NOT RECEIVED
;	        WRITTEN AUTHORIZATION FROM THE OWNER.
;
; 	[]===========================================================[]
;

;----------------------------------------------------------------------------
;Rev	Date	 Name	Description
;----------------------------------------------------------------------------
;R80A	05/15/99 TNY	Fix USB node report conflict if "SHADOW_UNIT_64K"
;			option defined.
;R23A	05/14/99 STV	Fixed R23 some bug.
;R105C	05/10/99 TNY	Fix IT8888 (P2I) bridge is not affected by NOGO,
;			so we must set IT8888 to subtractive mode earlier
;			for fixing ISA VGA fail.
;R95A	05/07/99 RCH	Fixed system hang up if Mylex DAC960 RAID controller
;			is plugged and PS2 mouse is not installed.
;
;R105B	05/06/99 TNY	We must call the "Patch_IT8888F" hook earlier for 
;			fixing ISA VGA. 
;R106	05/04/99 RCH	Fixed system hang up in POST while TI/PC1225 Cardbus
;			and ATI/Rage LT Pro AGP work together.
;
;R105A	04/20/99 TNY	Add IT8888F DMA channel programming followed by ITE.
;R105	04/16/99 TNY	Fix IT8888F (P2I bridge) MISA can not work.
;R82B	04/02/99 RCH	Fixed PCI/SCSI option ROM can not be initialized if
;			the VGA device number is 0CH and the SCSI device
;			number is 08H.
;
;R105	04/02/99 ATY	Fixed system hang up on Post Card "0B",Because PCIBus
;			must to clear in Base Addresses 5. 
;R102A	04/01/99 TNY	"PCI_IRQ_SELECTABLE" only set INTA-D to be selectable.
;R104	03/26/99 RCH	Fixed system hang up while AHA2940/SCSI and RTL8139
;			/LAN are plugged together on ALi chipset.
;			
;R103	03/26/99 TNY	Fix W83628F (P2I bridge) port 80h decode fail
;			problem.
;R102	03/25/99 RAY	Add slot5 to slot9 support for PCI_IRQ_SELECTABLE
;R101	03/22/99 RAY	Disable the IO resource assigned to P2P bridge if
;			no IO request is found behind this bridge.
;
;			This is added to solved the problem of Intel's
;			440BX & 440LX AGP bridge, which is not fully decoded,
;			will have problem installing NT4.0 with S3 PCI VGA
;
;			Note:
;			----
;			To disable a P2P bridge address, we simply use a
;			method of assigning a base IO address of 0F000h to
;			the bridge but with a limit of ZERO. 
;
;R100	03/18/99 RCH	Don't assign IRQ 9 for built-in audio controller to
;			Patch VIA/686 south bridge bug. System will hang up
;			while installing Win98 if the audio use IRQ 9.
;R64B	03/18/99 MCH	Added "ACPI_IRQ_Auto_Assign_Selectable" define with
;			"ACPI_IRQ_Selectable" to choose Auto/Manual assign IRQ.
;R92C	03/18/99 TNY	Fixed coding error.
;R99	03/16/99 RAY	NO "Check_M1_CPU" if it is not 586 BIOS
;R98	03/15/99 TNY	Set PCI Latency time to be 20h (not 40h) for fixing
;			some VGA card compability issue.
;R97	03/11/99 RCH	Added Intel/ICH0 IDE controller checking.
;R96	03/09/99 RCH	1. Added Boot from LAN devices with Bootstrap Entry
;			   Vector (BEV) boot ROM support.
;			2. Fixed BIOS can not boot from Intel/559 boot ROM
;			   if the PnP/BEV Boot is enabled.
;R91A	03/08/99 KVN	Fixed lan_command byte restore wrong data.That reason
;			is the lann_command byte be temp stored in XGROUP, but
;			Xgroup will be clear in POST_82S, so it always restore
;			zero.Now we put it to stack of POST
;R95	03/04/98 JSN	Fixed Mylex DAC960 RAID controller card cannot work
;			successfully while the PS/2 mouse is not plugging and
;			used flash 2M support.		
;R78A	03/04/99 KVN	Dont set IDE DMA capable status for all of IDE drive
;			that avoid ZIP read fail in NT with DMA driver (installed
;			service pack 4)
;R92B	03/03/99 TNY	Fixed R92 coding error.
;R85A	03/01/99 RIC	Fixed that VGA ROM added by CBROM can't be search in
;			follow case:
;			1. Add VGA ROM by using old CBROM.
;			2. VGA ID don't match with VGA ROM added by CBROM.
;			   (If VGA ID don't match with VGA ROM added by CBROM,
;			    BIOS will use first VGA ROM added by CBROM.)
;R92A	03/01/99 RCH	Fixed legacy USB not working after PCI ROM scanning
;			if the shadow unit is 64KB.
;R94	02/23/99 RCH	Fixed Avance Logic ALG2301 PCI VGA card failed with
;			ROM scanning. This card decode VGA ROM at address
;			0C0000H when command register is on even though the 
;			ROM decode enable bit in config. space 30H is off.
;R93A	02/22/99 RCH	Also mask IRQ 14 of 8259 for first IDE channel.
;R93	02/11/99 RCH	Added a switch to mask 8259 for IRQ 15 if on-chip
;			second IDE channel is disabled for PIIX platforms.
;R92	02/10/99 TNY	Fix VGA BIOS corrupted if ISA VGA plugged. 
;			(SHADOW_UNIT_64K)
;R91	01/10/99 RAY	Add BIOS.CFG swith: PciLanROM_Control. This switch
;			allows the user to decide whether to invoke the onboard
;			LAN chip's ROM or not
;
;R90	02/10/99 RAY	Support ISA VGA for chipset having shadow unit 
;			64K
;R82A	02/10/99 RIC	Fixed that some VGA card use C8000-CFFFF address on
;			over 32K VGA BIOS.(ex: RIVA TNT AGP card)
;			It will cause other PCI ROM to hang in POST 52h.
;			So assign 64K(Don't assign 48K) for over 32K VGA BIOS
;			using.
;R89	02/08/99 RCH	Added AMD-750 IDE controller checking for release IRQ 14
;			& IRQ 15 if controller is disabled. 
;
;R88	02/05/99 RCH 	Assign IRQ to PCI-TO-PCI bridge if requested.
;R87	01/27/99 RCH	Added STPC IDE controller checking for release IRQ 14
;			& IRQ 15 if controller is disabled. Also change
;			memory space address to F0000000H for PCI devices
;			due to no fully address decode.
;R68A	01/27/99 RAY	R68 Fix legacy-ISA's ROM shadowed fail which will 
;			cause all ISA PnP ROM space to be forced to shadowed.
;			This is reported by a IBM token ring card cannot work
;			properly.
;
;R86	01/21/99 MCH	Added "No_Assign_IRQ5_For_PCILAN" define to avoid
;			PCI LAN Card work in IRQ5 failure with some chipsets.
;R85	01/20/99 RCH	Check option header (0AA55H) first then verify ROM
;			checksum to save POST time if the ROM image is
;			invalid.
;R84	01/15/99 KVN	Fixed ROM size return from decompress to be destroy.
;R81A	01/13/99 MCH	Fixed the coding error.
;R83	01/13/99 RAY	Use Big real mode instead of protected mode during
;			serching for VGA BIOS. Some M/B hangs here!
;
;R82	12/28/98 RAY	1. Add SHADOW_UNIT_64K switch for chipsets supporting
;			   shadow in terms of 64K Unit.
;
;			   Note: This swith only applies to PCIP_NEW.ASM
;				 NOT PCIPOST.ASM
;
;			2. Kill the switch: CT_SHADOW_RW_HOOK_SUPPORT so that
;			   from now on if you want to use PCIP_NEW.ASM, you
;			   have to provide "Ct_Shadow_RW" & "Ct_Shadow_RW"
;			   in the F000 Segment of PCICHIP.ASM
;
;R81	12/23/98 MCH	Fixed for most PCI/VGA have random dots/lines in the
;			screen while starting to install Win95/98 if Cyrix
;			6x86 M1/M2 CPU is used with PCI Peer Concurrency and
;			OnChip USB is enabled in VIA/VPX chipsets platform.
;			It needs to add "Patch_MX_CPU_For_PCI_Peer_Con_USB"
;			define in the BIOS.CFG for effectiveness.
;R80	12/22/98 RCH	Fixed wrong device node report for option ROM size
;			is not match with shadow unit if the shadow unit is
;			64KByte.
;R63B	12/25/98 AVN	Fixed SiS 5600/530/620 when IDE channel disable and
;			IRQ cannot release, because channel enable bits had
;			swap.
;R79	12/14/98 TNY	Add "WHITNEY_SPECIAL" option.
;			Reason:
;				It is exhibited to be truned on command register 
;			before I/O & memory address assigned, otherwise the
;			system will hang-up.
;R78	12/09/98 KVN	Force set IDE DMA status register of capable bits for
;			windows NT service pack 4 to properly check DMA
;R77	12/09/98 TNY	Fix cache line size register of P2P bridge always be
;			2. (it should be 8)
;R76	12/08/98 RCH	Added Intel/ICH IDE controller checking.
;R57C	12/02/98 MIL	Enable Master bit for Cyrix CX55x0 Onboard P2P bridge.
;R75	12/02/98 MIL	Added code for Cyrix CX55x0 Chipset IDE Device.
;			Fixed IRQ 14/15 was assigned for PCI card when the
;			Two IDE Channel doesn't disable.
;R74	11/24/98 JMS	Fix can't use CD-ROM when use CMD CAS-646U IDE Card
;R73A	11/23/98 TNY	Fix R73 cause P6-Dual-P system hang in POST31.
;R73	11/19/98 ATY	Fixed bug that the AMD K6/3D CPU sometimes reset
;			during POST in SiS5598, when USB legacy support is
;			enabled.
;			The causation is that the SS is destroyed when entry
;			and leave SMI during protected mode period.
;R72	11/16/98 RAY	No more	Reserve_Irq_For_PciBootDev
;R71	11/16/98 TNY	Some PCI/IDE card is not class ide card, so we can
;			assign resource to it as real PCI card.
;			(like CMD CAS-646U)
;R70	11/16/98 RCH	Temporarily patch system hang if the PPGA 370 CPU
;			(CPUID=0665H) is configured with clock ratio 6
;			(400Mhz) or 6.5(433Mhz)
;R39C	11/10/98 LAW	fixed more level 3 bus VGA select error and onboard P2P
;			PCI VGA cannot select turn on
;R69	11/09/98 JKY	Patch 3COM cardbus card in dos , assign card is bus 7
;R68	11/05/98 RAY	Fix legacy-ISA's ROM shadowed fail.
;R63A	10/22/98 AVN	Support IRQ 14/15 was assigned for PCI card to all
;			SiS chipset.
;R56E	10/21/98 RCH	Clear PME# status for PCI MODEM card with class code
;			078000H to support Wake-On-Ring feature.
;
;R56D	10/08/98 RCH	Rewrite routine for clearing PME# status to support
;			other devices (like MODEM etc.)
;
;R65A	10/06/98 AVN	Move code to CHIPPOST.ASM to avoid check SiS6306 AGP
;			share/local memory repeat, if other P2P card plug.
;R67	10/06/98 RAY	Some M/B wants to reserved E000h IO space for
;			their customers.
;
;			Solution
;			--------
;			Add compiler variable "PCI_IO_LIMIT" for BIOS.CFG
;			to config the top IO address which is appropriate.
;			In this case, add "PCI_IO_LIMIT EQ 0E000h" in
;			BIOS.CFG.
;
;			Note: this variable only applies to the new PCIPOST.ASM
;			      i.e. PCIP_NEW.ASM
;
;R66	10/02/98 RAY	Some M/B maker share the same "SCSI onboard BIOS"
;			for 2 different M/B w/ and w/o SCSI devices.
;			However the SCSI_SLOT location for the non-SCSI
;			device is a P2P bridge.
;
;			Here in the BIOS we do a checking for storage device
;			before we disable the device on that SLOT
;
;R64A	10/02/98 RIC	Add "No_ACPI_IRQ_Auto_Assign" definition for R64 code.
;R65	09/23/98 AVN	Support SiS6306 AGP to check share/local memory using.
;R64	09/23/98 RIC	Change ACPI IRQ assign algorithm to Auto-assigned.
;			(This function is only support in VIA SouthBridge now)
;			If you want to use old algorithm, please define:
;			1."No_ACPI_IRQ_Auto_Assign" for disabled new algorithm.
;			2."ACPI_IRQ_Selectable" for enabled old algorithm.
;R63	09/22/98 RCH	Fixed IRQ 14/15 was assigned for PCI card when the
;			HDD is installed on secondary channel and there is
;			no device on primary channel for SiS chipset.
;R56C	09/22/98 RIC	Fix that WOL hang in POST 0Dh in some VIA mainboard
;			(with 596 SouthBridge).
;R62	09/18/98 RCH	Open IRQ 6 as available IRQ for PCI devices. If
;			platform need this feature, the value of
;			"AVAILABLE_PCI_IRQ" must be modifed also to have IRQ 6
;			available for assignment .
;R21C	09/11/98 RAY	Fixed ISA occupied address temporary shadowed
;			we invoking PCI ROM.
;
;			This bug was found when PCI SCSI & the M-System chip
;			were both installed. If the M-System(ISA) area was
;			shadowed, the system would hang up inside the SCSI
;			ROM since the M-System area was not only ROM but
;			some direct memory-map storage on the chip.
;
;R57B	08/27/98 RCH	Don't turn on bus master bit during PCI devices
;			I/O & memory scanning to avoid system hang up for
;			Sis5571 with 128MB SDRAM installed and the COGNEX
;			capture card is used.
;R61	08/21/98 RCH	Added a switch to support onboard PCI VGA located on
;			PCI bus above "0" and the chipset support AGP.
;	Note : "R22C" & "R21B" are used to fix working failure for
;		"IBM ISA/PnP Token-Ring LAN card"
;R22C	08/21/98 RAY	Do not report device node for ISA ROM which size is
;			not matched with the shadow size
;
;R21B	08/21/98 RAY	Temporary removed the changes that R21 & R21A had been
;			made since they caused the ROM area assigned by ISA PnP
;			being shadowed.
;
;			Due to R21 & R21A fixed the combination of M-System
;			ROM & PCI SCSI ROM conflict & this kind of combination
;			is comparatively less that ISA PnP devices with ROM.
;			Further investigation on this will be carried out to
;			fix this combination.
;
;R56B	08/19/98 TNY	Always clear PME status is plugged LAN card support
;			PME#.
;			Method:
;				Rx(34h) is the power-management capabilities
;			pointer. And the Cap register bit 31-27 is the
;			PME-Support register ( 0 = No PME# supported).
;			If PME# supported , we can R/W the Cap register bit 47
;			to clear the PME status.
;R60	08/12/98 STV	Added ACARD SCSI ID for Force_ROM_For_Some_Devices func.
;R59	08/11/98 RCH	Patch system hang up while scanning onboard C&T 6XXXX
;			VGA ROM register if Intel MMO module for 430TX is
;			used.
;R52B	08/10/98 AVN	Fixed when USB legacy support disable, no IRQ assign
;			USB host control.
;			The cause is that USB class code had destroy and the
;			class code will same as alternative VGA type.
;			So when define 'PCI_VGA_IRQ_SETUP_ITEM' and disable
;			VGA IRQ in setup, that the USB IRQ is disable too.
;			The correct solution save USB class code.
;R58	08/06/98 RAY	Fixed PCI memory space conflict when VGA in bus 0 and
;			a lots of PCI cards behind P2P bridge with much memory
;			space requested.
;R56A	08/05/98 TNY	1.Fix some chipset WOL fail.
;			2.Fix WOL fail if two 558 LAN card plugged.
;R52A	08/03/98 ATY	Fixed IRQ bug.If defined "ONBOARD_VGA_NEED_IRQ"
;						 "PCI_VGA_IRQ_SETUP_ITEM"
;			and			 "No_Assign_IRQ_If_USB_Disable"
;			after "VGA" Item choose "Disable",but "USB" Item is
;			"Enable",In boot mean is show "NA".
;R57A	07/29/98 RCH	Fixed USB legacy keyboard not working caused by R57
;R57	07/29/98 RCH	Don't turn on bus master bit before assigning resource
;			for PCI devices. It cause system hang up when COGNEX
;			MVS 8100 is plugged and system memory is 128Mb for
;			SiS5571 chipset.
;R56	07/28/98 TNY	Clear PCI LAN card's power-on status register
;			for fixing power-on fail next time.
;R55	07/23/98 KVN	Change method of decompressing in protect mode
;R54	07/21/98 STV	Fixed combination tow vga bios can't init.
;R53	07/16/98 KEN	Added delay between two memory write/read at routine
;			"Prepare_LMEM_Resource", otherwise the UMB will be
;			recognized as all RAM occupied if some ISA cards
;			installed.(e.g. Simple's PC card reader/writer)
;R52	07/08/98 AVN	Fixed when USB host disable and POST still reserve
;			one IRQ for USB host.
;R51A	07/08/98 AVN	R51 just patch question, now it is no usefully.
;			Beacuse the correct solution was found out.
;R51	07/02/98 AVN	For SiS5591/5595 with ACER CDROM driver (DOS version
;			vide-cdd.sys) will hang, if IRQ routine reg. no any
;			IRQ10 assing, so we let IRQ10 can be firstly assign.
;R50	06/26/98 RCH	Disabled VGA ROM space decode immediately after
;			VGA BIOS is copied to buffer to fix display failure
;			for CirrusLogic CL7555 PCI VGA card.
;R49	06/03/98 TNY	Fix both AGP VGA card and P2P VGA card plugged, the
;			AGP VGA card always is the highest priolity display.
;R48	06/02/98 TNY	Add "ASSIGN_ONE_IRQ_FOR_PCI_IF_PnPOS_YES" option.
;R47A	05/26/98 JSN	Fixed error code.
;R47	05/26/98 JSN	Fixed VIA/Ali chipset system reboot while use AHA SCSI
;			pci card at POST_52s when the CPU is AMD K6/3D and
;			the USB	keyboard is plugged.
;			The causation is that the SMI is issued while the
;			system is resided in protected mode.
;			The solution is that using flat mode. 			reading and writing.
;R46    05/22/98 ADS    Added "AGP_V3000_Card_Awlays_Assign_IRQ" to fix this
;			AGP VGA card hang in Win95 with no assign IRQ.
;R45	05/08/98 RCH	Fixed device(DAC960PG) using i960RP as I/O processor
;			lose option ROM initialization.
;R39B	05/08/98 TNY	Reduce code size.
;R39A	05/07/98 TNY	Improve FirstInitAGP_Item for user to select to init
;			AGP ,PCI slot and Onboard PCI vga.
;R44	05/07/98 RCH	Fixed VGA can not work if it's ROM size is bigger
;			than 32Kb for MediaGX platform
;R43	05/05/98 JDN	Fixed codes for Cardbus can't initial
;R42	04/21/98 TNY	Patch MATROX VR card.
;			It's a VGA P2P card, we found the P2P's ending prefetchr
;			egister must be modified: Rx(26) = 0 &
;			Rx(27) = and not 08h.
;R41	04/17/98 RAY	Skip checking the device ID for NCR SCSI ROM for the
;			below 2 reasons:
;
;			1. NCR/Symbios can supports all series of NCR/Symbios
;			   SCSI device by one ROM
;			2. Some Symbios SCSI card will have a ROM with device
;			   ID different from the ID on chip
;
;R40	04/01/98 ATY	Solved SiS5598 of Onboard vga to hang in "BF".
;R39	03/31/98 RAY	Add support for users to select from which VGA card
;			(AGP or PCI) should the BIOS initialize
;
;R38	03/31/98 RAY	Add ONBOARD_VGA_P2P[BP] for PCICHIP.ASM to report a
;			onboard VGA which goes thru a onboard P2P. Just fill
;			ONBOARD_VGA_P2P[BP] with the P2P bridge's device(func)
;			number to inform the PCI kernel.
;
;			Note: It applies only to VGA P2P on Bus 0
;
;R37	03/29/98 RAY	Add external definitions to fix old PnP setup
;			compiling error.
;
;R36	03/24/98 RCH	BIOS scan all PCI ROMs from bus 0 up to maximum bus
;			number. Most of Raid cards are incorporated with a
;			P2P bridge and the bus number assigned is higher
;			than bus 0. In order to let user can select booting
;			from Raid first instead of normal SCSI card on the
;			bus 0, a switch "RAID_BOOT_OPTION" is used to reach
;			this goal and user also have choice in the setup
;			screen.
;R35	03/20/98 RCH	Fixed system can not boot from SCSI drive if 3COM LAN
;			boot ROM is executed before SCSI ROM initials.
;			It's 3COM's boot ROM problem. BIOS just patch it.
;			It is optional, need switch "LAST_INIT_FOR_LAN_ROM"
;R34A	03/20/98 RAY	Fix Loop too long
;
;			R34 caused the "loop Next_P2P_Request" instruction to
;			jump to a label offset > 128 bytes. Use CMP & JNE
;			instead !
;
;R34	03/19/98 RAY	Problem fixed:
;
;			When a lot of P2P are plugged, the IO range will
;			confict.
;
;R33	03/12/98 KVN	Added ChipAwayVirus ROM to F000 shadow
;R22B	03/10/98 RCH	Patch system failure if VGA ROM is larger than 32Kb
;			and working with LAN card under Win95 after
;			suspend/resume.
;R32	03/10/98 RAY	Force the base request register B1 to be 0 if that
;			base register request a I/O space. This is added to
;			to prevent some "BAD" PCI devices which report a
;			unreasonable value but in fact they need resources
;
;R09A	03/06/98 RCH	More modifications for Trend ChipAway anti-virus
;			support, Skip ChipAway ROM initial if user disable
;			in CMOS setup screen.
;
;R31	03/06/98 RAY	The Intel 440LX AGP P2P bridge do not fully decode the
;			I/O space. When the I/O range of this bridge is set to
;			B000h-BFFFFh(when the total I/O request of Bus 0
;			including P2P is 4000h), it will cause the S3 775 VGA
;			card to have a blank screen(except the mouse cursor)
;			under NT4.0 with the VGA device driver installed.
;
;			We patch this by trying to prevent the bridge's I/O
;			range to be set to B000-BFFF
;
;			Remark: This happens only in this PCIP_NEW.ASM because
;				the old PCIPOST.ASM "hard coded" the I/O range
;				of a P2P bridge
;
;R30	02/27/98 KVN	Public the routine: E000_A20_Off
;R29	02/26/98 RIC	Fixed that the IRQ of USB can't release when USB
;			disabled in "USB_IRQ_SELECTABLE" define.
;R21A 	02/17/98 STV	The Shadow set enable but not enable.
;R28	02/16/98 TNY	Disable 3Eh(0) Parity Errre Response of AGP bridge
;			followed by  Intel.
;R27	02/02/98 KGN	Add defin No_C8_DF_Shadow_Item for save F000 Code
;			remove C800-DFFF shadow menuitem from bfeature
;R26	02/02/98 PAL	Fixed error when shadow unit use 32k
;R25	01/22/98 JSN	Fixed easy hang at 0b for Ali + ET6000 + AHA 2940W
;R19A	01/14/98 RAY	Fixed compiler error in if MOUSE_IN_XGROUP is defined
;
;R24	01/14/98 STV    Fixed bug. When PCI BIOS size > 64k ,post later shadow
;			change error.
;R22A	01/14/98 RCH	Fixed wrong size of ROM device node if option ROM size
;			is bigger than 16Kb
;R23	01/13/98 STV	Added all isa rom func for CBROM /isa.
;			i.e : 1.cbrom /isa [Filename]
;			      2.cbrom /isa [Filename] [xxxx:0]
;R22	01/13/98 RCH	Intel/558 LAN and AHA/2940 SCSI working under Win95
;			will cause a yellow caution if system enter and exit
;			suspend mode. This only happen on Win95 and no problem
;			on Win98.
;R21 	01/08/98 PAL	Fixed SCSI option rom hangs in combination with M-SYSTEMS
;R20	01/06/98 RCH	Added optional feature with IRQ selectable for each
;			PCI slots if define "PCI_IRQ_SELECTABLE"
;R19	01/03/98 STV	Fixed Mylex DAC960 RAID controller card cannot work