[LinuxBIOS] newbie: flashrom cannot find flash device
Wolfgang Spraul
wspraul at q-ag.de
Mon Jul 24 00:37:09 CEST 2006
Hi there -
I'm trying to use LinuxBIOS to help me out with a problem I have with a
recently acquired Panasonic R5 notebook: Panasonic decided to disable
Intel Virtualization Support in the BIOS startup code (WRMSR instruction
to set the lock bit in the CPU's Feature Control MSR) without giving me
the option to override this in the BIOS menus or offering BIOS updates.
So my plan now is this: 'Download' my BIOS (PhoenixBIOS V1.00L13),
disassemble & modify the WRMSR instruction, re-flash it onto the board
(hopefully the BIOS instructions themselves are not compressed or
encrypted).
First of all the latest (svn) flashrom does not detect my flash device.
From prior posts on this mailing lists I deduced I may have an 'Intel
firmware hub'? No idea what that is...
flashrom -V output and lspci -V follow below.
My questions:
1) Is there a chance I can use flashrom to read/write my BIOS code. What
is missing? Can anybody point me in any direction from the flashrom -V
output below? Should I open the notebook to try to find any chip label?
2) Has anybody ever 'patched' an off-the-shelf PhoenixBIOS? Is that a
realistic proposition at all, or will it be impossible because the
binary is compressed/encrypted/signed/whatever?
Thanks for your help,
Wolfgang Spraul
--- flashrom -V output
Calibrating delay loop... Setting up microsecond timing loop
302M loops per second
ok
No LinuxBIOS table found.
Trying Am29F040B, 512 KB
probe_29f040b: id1 0x4e, id2 0x41
Trying Am29F016D, 2048 KB
probe_29f040b: id1 0xaa, id2 0x55
Trying At29C040A, 512 KB
probe_jedec: id1 0x4e, id2 0x41
Trying Mx29f002, 256 KB
probe_29f002: id1 0xf8, id2 0x57
Trying SST29EE020A, 256 KB
probe_jedec: id1 0xf8, id2 0x57
Trying SST28SF040A, 512 KB
probe_28sf040: id1 0x4e, id2 0x41
Trying SST39SF020A, 256 KB
probe_jedec: id1 0xf8, id2 0x57
Trying SST39VF020, 256 KB
probe_jedec: id1 0xf8, id2 0x57
Trying SST49LF040B, 512 KB
probe_jedec: id1 0x4e, id2 0x41
Trying SST49LF040, 512 KB
probe_jedec: id1 0x4e, id2 0x41
Trying SST49LF080A, 1024 KB
probe_jedec: id1 0xaa, id2 0x55
Trying SST49LF002A/B, 256 KB
probe_jedec: id1 0xf8, id2 0x57
Trying SST49LF003A/B, 384 KB
probe_jedec: id1 0x83, id2 0xd6
Trying SST49LF004A/B, 512 KB
probe_jedec: id1 0x4e, id2 0x41
Trying SST49LF008A, 1024 KB
probe_jedec: id1 0xaa, id2 0x55
Trying Pm49FL002, 256 KB
probe_jedec: id1 0xf8, id2 0x57
Trying Pm49FL004, 512 KB
probe_jedec: id1 0x4e, id2 0x41
Trying W29C011, 128 KB
probe_jedec: id1 0x99, id2 0x8a
Trying W29C020C, 256 KB
probe_jedec: id1 0xf8, id2 0x57
Trying W49F002U, 256 KB
probe_jedec: id1 0xf8, id2 0x57
Trying W49V002A, 256 KB
probe_jedec: id1 0xf8, id2 0x57
Trying W49V002FA, 256 KB
probe_jedec: id1 0xf8, id2 0x57
Trying W39V040A, 512 KB
probe_jedec: id1 0x4e, id2 0x41
Trying M29F040B, 512 KB
probe_29f040b: id1 0x4e, id2 0x41
Trying M29F400BT, 512 KB
probe_m29f400bt: id1 0x4e, id2 0x50
Trying 82802ab, 512 KB
probe_82802ab: id1 0x4e, id2 0x41
Trying 82802ac, 1024 KB
probe_82802ab: id1 0xaa, id2 0x55
Trying F49B002UA, 256 KB
probe_jedec: id1 0xf8, id2 0x57
Trying LHF00L04, 1024 KB
probe_lhf00l04: id1 0xaa, id2 0x55
No EEPROM/flash device found.
--- lspci -v output
00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS/940GML and
945GT Express Memory Controller Hub (rev 03)
Subsystem: Matsushita Electric Industrial Co., Ltd. Unknown device 8338
Flags: bus master, fast devsel, latency 0
Capabilities: [e0] Vendor Specific Information
00:02.0 VGA compatible controller: Intel Corporation Mobile
945GM/GMS/940GML Express Integrated Graphics Controller (rev 03)
(prog-if 00 [VGA])
Subsystem: Matsushita Electric Industrial Co., Ltd. Unknown device 8338
Flags: bus master, fast devsel, latency 0, IRQ 5
Memory at d0200000 (32-bit, non-prefetchable) [size=512K]
I/O ports at 1800 [size=8]
Memory at c0000000 (32-bit, prefetchable) [size=256M]
Memory at d0300000 (32-bit, non-prefetchable) [size=256K]
Capabilities: [90] Message Signalled Interrupts: 64bit- Queue=0/0
Enable-
Capabilities: [d0] Power Management version 2
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/940GML
Express Integrated Graphics Controller (rev 03)
Subsystem: Matsushita Electric Industrial Co., Ltd. Unknown device 8338
Flags: bus master, fast devsel, latency 0
Memory at d0280000 (32-bit, non-prefetchable) [size=512K]
Capabilities: [d0] Power Management version 2
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High
Definition Audio Controller (rev 02)
Subsystem: Matsushita Electric Industrial Co., Ltd. Unknown device 8338
Flags: bus master, fast devsel, latency 0, IRQ 185
Memory at d0340000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Capabilities: [60] Message Signalled Interrupts: 64bit+ Queue=0/0
Enable-
Capabilities: [70] Express Unknown type IRQ 0
Capabilities: [100] Virtual Channel
Capabilities: [130] Unknown (5)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express
Port 1 (rev 02) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
Capabilities: [40] Express Root Port (Slot+) IRQ 0
Capabilities: [80] Message Signalled Interrupts: 64bit- Queue=0/0
Enable+
Capabilities: [90] #0d [0000]
Capabilities: [a0] Power Management version 2
Capabilities: [100] Virtual Channel
Capabilities: [180] Unknown (5)
00:1c.2 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express
Port 3 (rev 02) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
Memory behind bridge: d0000000-d00fffff
Capabilities: [40] Express Root Port (Slot+) IRQ 0
Capabilities: [80] Message Signalled Interrupts: 64bit- Queue=0/0
Enable+
Capabilities: [90] #0d [0000]
Capabilities: [a0] Power Management version 2
Capabilities: [100] Virtual Channel
Capabilities: [180] Unknown (5)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI
#1 (rev 02) (prog-if 00 [UHCI])
Subsystem: Matsushita Electric Industrial Co., Ltd. Unknown device 8338
Flags: bus master, medium devsel, latency 0, IRQ 217
I/O ports at 1820 [size=32]
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI
#2 (rev 02) (prog-if 00 [UHCI])
Subsystem: Matsushita Electric Industrial Co., Ltd. Unknown device 8338
Flags: bus master, medium devsel, latency 0, IRQ 225
I/O ports at 1840 [size=32]
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI
#3 (rev 02) (prog-if 00 [UHCI])
Subsystem: Matsushita Electric Industrial Co., Ltd. Unknown device 8338
Flags: bus master, medium devsel, latency 0, IRQ 177
I/O ports at 1860 [size=32]
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI
#4 (rev 02) (prog-if 00 [UHCI])
Subsystem: Matsushita Electric Industrial Co., Ltd. Unknown device 8338
Flags: bus master, medium devsel, latency 0, IRQ 233
I/O ports at 1880 [size=32]
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI
Controller (rev 02) (prog-if 20 [EHCI])
Subsystem: Matsushita Electric Industrial Co., Ltd. Unknown device 8338
Flags: bus master, medium devsel, latency 0, IRQ 217
Memory at d0544000 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Capabilities: [58] Debug port
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2)
(prog-if 01 [Subtractive decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=04, subordinate=05, sec-latency=32
I/O behind bridge: 00002000-00002fff
Memory behind bridge: d0100000-d01fffff
Prefetchable memory behind bridge: 0000000030000000-0000000031f00000
Capabilities: [50] #0d [0000]
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface
Bridge (rev 02)
Subsystem: Matsushita Electric Industrial Co., Ltd. Unknown device 8338
Flags: bus master, medium devsel, latency 0
Capabilities: [e0] Vendor Specific Information
00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE
Controller (rev 02) (prog-if 8a [Master SecP PriP])
Subsystem: Matsushita Electric Industrial Co., Ltd. Unknown device 8338
Flags: bus master, medium devsel, latency 0, IRQ 177
I/O ports at <unassigned>
I/O ports at <unassigned>
I/O ports at <unassigned>
I/O ports at <unassigned>
I/O ports at 1810 [size=16]
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller
(rev 02)
Subsystem: Matsushita Electric Industrial Co., Ltd. Unknown device 8338
Flags: medium devsel, IRQ 11
I/O ports at 18a0 [size=32]
03:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG
Network Connection (rev 02)
Subsystem: Intel Corporation Unknown device 1003
Flags: bus master, fast devsel, latency 0, IRQ 7
Memory at d0000000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [c8] Power Management version 2
Capabilities: [d0] Message Signalled Interrupts: 64bit+ Queue=0/0
Enable-
Capabilities: [e0] Express Legacy Endpoint IRQ 0
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Device Serial Number c1-29-2b-ff-ff-02-13-00
04:01.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8139/8139C/8139C+ (rev 10)
Subsystem: Matsushita Electric Industrial Co., Ltd. Unknown device 8338
Flags: bus master, medium devsel, latency 32, IRQ 225
I/O ports at 2000 [size=256]
Memory at d0100000 (32-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 2
04:05.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev 8d)
Subsystem: Matsushita Electric Industrial Co., Ltd. Unknown device 8338
Flags: bus master, medium devsel, latency 168, IRQ 185
Memory at d0101000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=04, secondary=05, subordinate=08, sec-latency=176
Memory window 0: 30000000-31fff000 (prefetchable)
Memory window 1: 32000000-33fff000
I/O window 0: 00002400-000024ff
I/O window 1: 00002800-000028ff
16-bit legacy interface ports at 0001
04:05.1 Class 0805: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host
Adapter (rev 13)
Subsystem: Matsushita Electric Industrial Co., Ltd. Unknown device 8338
Flags: bus master, medium devsel, latency 32, IRQ 11
Memory at d0100400 (32-bit, non-prefetchable) [size=256]
Capabilities: [80] Power Management version 2
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