On Tue, 1 Oct 2013 20:39:12 +0200 san san@plusnet.pl wrote:
Hi again!
I'm trying to "Try & Error method on GPIO pins" but not sure what to do:
====================== san@flashrom:~$ lspci | grep ISA 00:1f.0 ISA bridge: Intel Corporation 82801EB/ER (ICH5/ICH5R) LPC Interface Bridge (rev 02) ======================
seems to be fine, but can not find anything usefull at:
====================== san@flashrom:~$ cat /proc/ioports 0000-001f : dma1 0020-0021 : pic1 0040-0043 : timer0 0050-0053 : timer1 0060-0060 : keyboard 0064-0064 : keyboard 0070-0073 : rtc0 0080-008f : dma page reg 00a0-00a1 : pic2 00c0-00df : dma2 00f0-00ff : fpu 0170-0177 : 0000:00:1f.1 0170-0177 : ata_piix 01f0-01f7 : 0000:00:1f.1 01f0-01f7 : ata_piix 0294-0297 : pnp 00:01 0376-0376 : 0000:00:1f.1 0376-0376 : ata_piix 0378-037a : parport0 03f2-03f2 : floppy 03f4-03f5 : floppy 03f6-03f6 : 0000:00:1f.1 03f6-03f6 : ata_piix 03f7-03f7 : floppy 03f8-03ff : serial 0400-04bf : pnp 00:0a 0400-0403 : ACPI PM1a_EVT_BLK 0404-0405 : ACPI PM1a_CNT_BLK 0408-040b : ACPI PM_TMR 0428-042f : ACPI GPE0_BLK 04d0-04d1 : pnp 00:01 0500-051f : 0000:00:1f.3 0a78-0a7b : pnp 00:01 0b78-0b7b : pnp 00:01 0bbc-0bbf : pnp 00:01 0cf8-0cff : PCI conf1 0e78-0e7b : pnp 00:01 0f78-0f7b : pnp 00:01 0fbc-0fbf : pnp 00:01 a000-afff : PCI Bus 0000:02 a000-a0ff : 0000:02:02.0 a000-a0ff : 8139too b000-b01f : 0000:00:1d.1 b000-b01f : uhci_hcd b400-b41f : 0000:00:1d.2 b400-b41f : uhci_hcd b800-b81f : 0000:00:1d.3 b800-b81f : uhci_hcd bc00-bc1f : 0000:00:1d.0 bc00-bc1f : uhci_hcd c000-c007 : 0000:00:1f.2 c000-c007 : ata_piix c400-c403 : 0000:00:1f.2 c400-c403 : ata_piix c800-c807 : 0000:00:1f.2 c800-c807 : ata_piix cc00-cc03 : 0000:00:1f.2 cc00-cc03 : ata_piix d000-d00f : 0000:00:1f.2 d000-d00f : ata_piix d800-d8ff : 0000:00:1f.5 d800-d8ff : Intel ICH5 dc00-dc3f : 0000:00:1f.5 dc00-dc3f : Intel ICH5 f000-f00f : 0000:00:1f.1 f000-f00f : ata_piix
======================
No idea why the GPIO function is not found in the ioports... probably you need to load a module for it that is not loaded automatically.
The interesting part of your binary that (probably) disables the write protection is disassembled here: http://paste.flashrom.org/view.php?id=1772
The head of the function 5E1F is done by flashrom already (setting BIOS_CNTL). Starting with 5E2C it calculates the offset of the GPIO registers mapped on PMBASE (5E77 stores a part of PMBASE in dx).
So you can either continue with the trial and error method or try to understand the code the vendor tool would execute.
What name of module should i look for?
I'm trying to manipulate gpios, but getting this message:
=============== root@flashrom:/sys/class/gpio# echo 3 > /sys/class/gpio/export bash: echo: write error: Invalid argument ===============
Might it be releated to dmesg info:
=============== [ 7.508264] ACPI Warning: 0x00000430-0x00000433 SystemIO conflicts with Regio n \SPEN 1 (20120320/utaddress-251) [ 7.508295] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 7.508302] lpc_ich: Resource conflict(s) found affecting iTCO_wdt [ 7.508320] lpc_ich 0000:00:1f.0: I/O space for GPIO uninitialized [ 7.548511] ppdev: user-space parallel port driver ===============
I have no idea what to do. GPIO uninitialised is not for this machine only.
Just wanted to inform, ill try to find some answers, but any help would be aprecieted.
Is it possible we can not do anything beacose of GPIO interface problems?
Best regards!
2013/10/2 Stefan Tauner stefan.tauner@student.tuwien.ac.at
On Tue, 1 Oct 2013 20:39:12 +0200 san san@plusnet.pl wrote:
Hi again!
I'm trying to "Try & Error method on GPIO pins" but not sure what to do:
====================== san@flashrom:~$ lspci | grep ISA 00:1f.0 ISA bridge: Intel Corporation 82801EB/ER (ICH5/ICH5R) LPC
Interface
Bridge (rev 02)
seems to be fine, but can not find anything usefull at:
====================== san@flashrom:~$ cat /proc/ioports 0000-001f : dma1 0020-0021 : pic1 0040-0043 : timer0 0050-0053 : timer1 0060-0060 : keyboard 0064-0064 : keyboard 0070-0073 : rtc0 0080-008f : dma page reg 00a0-00a1 : pic2 00c0-00df : dma2 00f0-00ff : fpu 0170-0177 : 0000:00:1f.1 0170-0177 : ata_piix 01f0-01f7 : 0000:00:1f.1 01f0-01f7 : ata_piix 0294-0297 : pnp 00:01 0376-0376 : 0000:00:1f.1 0376-0376 : ata_piix 0378-037a : parport0 03f2-03f2 : floppy 03f4-03f5 : floppy 03f6-03f6 : 0000:00:1f.1 03f6-03f6 : ata_piix 03f7-03f7 : floppy 03f8-03ff : serial 0400-04bf : pnp 00:0a 0400-0403 : ACPI PM1a_EVT_BLK 0404-0405 : ACPI PM1a_CNT_BLK 0408-040b : ACPI PM_TMR 0428-042f : ACPI GPE0_BLK 04d0-04d1 : pnp 00:01 0500-051f : 0000:00:1f.3 0a78-0a7b : pnp 00:01 0b78-0b7b : pnp 00:01 0bbc-0bbf : pnp 00:01 0cf8-0cff : PCI conf1 0e78-0e7b : pnp 00:01 0f78-0f7b : pnp 00:01 0fbc-0fbf : pnp 00:01 a000-afff : PCI Bus 0000:02 a000-a0ff : 0000:02:02.0 a000-a0ff : 8139too b000-b01f : 0000:00:1d.1 b000-b01f : uhci_hcd b400-b41f : 0000:00:1d.2 b400-b41f : uhci_hcd b800-b81f : 0000:00:1d.3 b800-b81f : uhci_hcd bc00-bc1f : 0000:00:1d.0 bc00-bc1f : uhci_hcd c000-c007 : 0000:00:1f.2 c000-c007 : ata_piix c400-c403 : 0000:00:1f.2 c400-c403 : ata_piix c800-c807 : 0000:00:1f.2 c800-c807 : ata_piix cc00-cc03 : 0000:00:1f.2 cc00-cc03 : ata_piix d000-d00f : 0000:00:1f.2 d000-d00f : ata_piix d800-d8ff : 0000:00:1f.5 d800-d8ff : Intel ICH5 dc00-dc3f : 0000:00:1f.5 dc00-dc3f : Intel ICH5 f000-f00f : 0000:00:1f.1 f000-f00f : ata_piix
======================
No idea why the GPIO function is not found in the ioports... probably you need to load a module for it that is not loaded automatically.
The interesting part of your binary that (probably) disables the write protection is disassembled here: http://paste.flashrom.org/view.php?id=1772
The head of the function 5E1F is done by flashrom already (setting BIOS_CNTL). Starting with 5E2C it calculates the offset of the GPIO registers mapped on PMBASE (5E77 stores a part of PMBASE in dx).
So you can either continue with the trial and error method or try to understand the code the vendor tool would execute.
-- Kind regards/Mit freundlichen Grüßen, Stefan Tauner
-
san -
Stefan Tauner