From 66e7e1780cf52433f0e06dec68487a682b113b3d Mon Sep 17 00:00:00 2001 From: Francis Rowe Date: Sat, 14 Mar 2015 09:01:33 -0400 Subject: docs/install/x200_external.html: add photos, improve instructions --- (limited to 'docs') diff --git a/docs/install/bbb_setup.html b/docs/install/bbb_setup.html index c263718..8aee971 100644 --- a/docs/install/bbb_setup.html +++ b/docs/install/bbb_setup.html @@ -38,6 +38,11 @@ This page contains a list of distributors.
  • + Electrical tape: cover the entire bottom surface of the BBB (the part that + rests on a surface). This is important, when placing the BBB on top of a board + so that nothing shorts. +
  • +
  • Clip for connecting to the flash chip: if you have a SOIC-16 flash chip (16 pins), you will need the Pomona 5252 or equivalent. For SOIC-8 flash chips (8 pins), you will diff --git a/docs/install/images/x200/disassembly/0001.jpg b/docs/install/images/x200/disassembly/0001.jpg new file mode 100644 index 0000000..231ae57 --- /dev/null +++ b/docs/install/images/x200/disassembly/0001.jpg Binary files differ diff --git a/docs/install/images/x200/disassembly/0002.jpg b/docs/install/images/x200/disassembly/0002.jpg new file mode 100644 index 0000000..a69d5de --- /dev/null +++ b/docs/install/images/x200/disassembly/0002.jpg Binary files differ diff --git a/docs/install/images/x200/disassembly/0003.jpg b/docs/install/images/x200/disassembly/0003.jpg new file mode 100644 index 0000000..2637b9f --- /dev/null +++ b/docs/install/images/x200/disassembly/0003.jpg Binary files differ diff --git a/docs/install/images/x200/disassembly/0004.jpg b/docs/install/images/x200/disassembly/0004.jpg new file mode 100644 index 0000000..c246ec4 --- /dev/null +++ b/docs/install/images/x200/disassembly/0004.jpg Binary files differ diff --git a/docs/install/images/x200/disassembly/0005.jpg b/docs/install/images/x200/disassembly/0005.jpg new file mode 100644 index 0000000..95219db --- /dev/null +++ b/docs/install/images/x200/disassembly/0005.jpg Binary files differ diff --git a/docs/install/images/x200/disassembly/0006.jpg b/docs/install/images/x200/disassembly/0006.jpg new file mode 100644 index 0000000..0f6d04a --- /dev/null +++ b/docs/install/images/x200/disassembly/0006.jpg Binary files differ diff --git a/docs/install/images/x200/disassembly/0007.jpg b/docs/install/images/x200/disassembly/0007.jpg new file mode 100644 index 0000000..68bfb28 --- /dev/null +++ b/docs/install/images/x200/disassembly/0007.jpg Binary files differ diff --git a/docs/install/images/x200/disassembly/0008.jpg b/docs/install/images/x200/disassembly/0008.jpg new file mode 100644 index 0000000..765b9ab --- /dev/null +++ b/docs/install/images/x200/disassembly/0008.jpg Binary files differ diff --git a/docs/install/images/x200/disassembly/0009.jpg b/docs/install/images/x200/disassembly/0009.jpg new file mode 100644 index 0000000..a1b5719 --- /dev/null +++ b/docs/install/images/x200/disassembly/0009.jpg Binary files differ diff --git a/docs/install/images/x200/disassembly/0010.jpg b/docs/install/images/x200/disassembly/0010.jpg new file mode 100644 index 0000000..f64ab47 --- /dev/null +++ b/docs/install/images/x200/disassembly/0010.jpg Binary files differ diff --git a/docs/install/images/x200/disassembly/0011.jpg b/docs/install/images/x200/disassembly/0011.jpg new file mode 100644 index 0000000..98ebbf3 --- /dev/null +++ b/docs/install/images/x200/disassembly/0011.jpg Binary files differ diff --git a/docs/install/images/x200/disassembly/0012.jpg b/docs/install/images/x200/disassembly/0012.jpg new file mode 100644 index 0000000..6db2ed8 --- /dev/null +++ b/docs/install/images/x200/disassembly/0012.jpg Binary files differ diff --git a/docs/install/images/x200/disassembly/0013.jpg b/docs/install/images/x200/disassembly/0013.jpg new file mode 100644 index 0000000..599a228 --- /dev/null +++ b/docs/install/images/x200/disassembly/0013.jpg Binary files differ diff --git a/docs/install/images/x200/disassembly/0014.jpg b/docs/install/images/x200/disassembly/0014.jpg new file mode 100644 index 0000000..92af997 --- /dev/null +++ b/docs/install/images/x200/disassembly/0014.jpg Binary files differ diff --git a/docs/install/images/x200/disassembly/0015.jpg b/docs/install/images/x200/disassembly/0015.jpg new file mode 100644 index 0000000..a294275 --- /dev/null +++ b/docs/install/images/x200/disassembly/0015.jpg Binary files differ diff --git a/docs/install/x200_external.html b/docs/install/x200_external.html index b3de46b..c424966 100644 --- a/docs/install/x200_external.html +++ b/docs/install/x200_external.html @@ -22,17 +22,6 @@ can also be followed (adapted) if you brick your X200, to know how to recover.

    -

    - The X200S is also briefly covered (image showing soldering joints, wired up - to a BBB). Note, not all X200S or X200 Tablet configurations are supported yet - (see ../hcl/x200.html#x200s -

    -

    - Before following this section, please make sure to setup your libreboot ROM properly first. - Although ROM images are provided pre-built in libreboot, there are some modifications that - you need to make to the one you chose before flashing. (instructions referenced later in - this guide) -

    Back to main index

    @@ -40,14 +29,17 @@

    Flash chips

    - +

    - There are two possible flash chip sizes for the X200: 4MiB - (32Mbit) or 8MiB (64Mbit). This can be identified by the type - of flash chip below the palmrest: 4MiB is SOIC-8 (8 pins), 8MiB - is SOIC-16 (16 pins). The X200S uses a WSON package and has the same - pinout as SOIC-8 (covered briefly later on in this guide) but - the chip is on the underside of the board (disassembly required). + The X200 will use an 8MiB or 64Mb SOIC-16 chip (rare models + will use a 4MiB or 32Mb SOIC-8 chip), below the palm rest. +

    + +

    + The X200S and X200 Tablet will use a WSON-8 flash chip, on the + bottom of the motherboard (this requires removal of the + motherboard). Not all X200S/X200T are supported; + see ../hcl/x200.html#x200s.

    @@ -55,18 +47,41 @@

    + +
    + +

    MAC address

    + +

    + On the X200/X200S/X200T, the MAC address for the onboard + gigabit ethernet chipset is stored inside the flash chip, + along with other configuration data. +

    +

    + Keep a note of the MAC address before disassembly; this is + very important, because you will need to insert this into + the libreboot ROM image before flashing it. + It will be written in one of these locations: +

    + +

    + + +

    + +
    -

    Initial BBB setup

    +

    Initial BBB configuration

    Refer to bbb_setup.html for how to - setup the BBB for flashing. + set up the BBB for flashing.

    - The following shows how to connect clip to the BBB (on the P9 header), for SOIC-16 (clip: Pomona 5252): + The following shows how to connect the clip to the BBB (on the P9 header), for SOIC-16 (clip: Pomona 5252):

     POMONA 5252 (correlate with the BBB guide)
    @@ -81,9 +96,11 @@ POMONA 5252 (correlate with the BBB guide)
      22              -       - NC - this is pin 1 on the flash chip
     ===  back (palmrest) on your X200 ===
     This is how you will connect. Numbers refer to pin numbers on the BBB, on the plugs near the DC jack.
    +Here is a photo of the SOIC-16 flash chip. Pins are labelled:
    +

    - The following shows how to connect clip to the BBB (on the P9 header), for SOIC-8 (clip: Pomona 5250): + The following shows how to connect the clip to the BBB (on the P9 header), for SOIC-8 (clip: Pomona 5250):

     POMONA 5250 (correlate with the BBB guide)
    @@ -94,7 +111,7 @@ POMONA 5250 (correlate with the BBB guide)
      3.3V PSU RED    -       - 17 - this is pin 1 on the flash chip. in front of it is the screen.
     ===  right side of the X200 (where the audio jacks are) ===
     This is how you will connect. Numbers refer to pin numbers on the BBB, on the plugs near the DC jack.
    -Here is a photo of the SOIC-8 flash chip:
    +Here is a photo of the SOIC-8 flash chip. The pins are labelled:
    freenode IRC #libreboot 01:42 UK/London timezone February 8th 2015: pehjota: fchmmr: Here are two photos in the camera's configured resolution; resize them as you wish: http://www.pehjota.net/~pj/x200/soic-8/.  License: CC BY-SA 3.0 or later.  If you want other angles or anything, let me know. Look at the pads in that photo, on the left and right. Those are for SOIC-16. Would it be possible to remove the SOIC-8 and solder a SOIC-16 @@ -115,27 +132,74 @@ chip on those pins?

    - Connect Pomona 5252/5250 to the X200 flash chip, and dump/flash + The procedure

    - The following photo shows an X200 flashed using the BBB:
    - + This section is for the X200. This does not apply to the X200S or X200 Tablet + (for those machines, you have to remove the motherboard completely, since + the flash chip is on the other side of the board). +

    +

    + Remove these screws:
    + +

    +

    + Push the keyboard forward, gently, then lift it off and + disconnect it from the board:
    + + +

    +

    + Pull the palm rest off, lifting from the left and right side at the back of the + palm rest:
    + +

    +

    + Lift back the tape that covers a part of the flash chip, and + then connect the clip:
    + + +

    +

    + On pin 2 of the BBB, where you have the ground (GND), connect the + ground to your PSU:
    + + +

    +

    + Connect the 3.3V supply from your PSU to the flash chip (via + the clip):
    + + +

    +

    + Of course, make sure that your PSU is also plugged in and + turn on:
    +

    - Remove the battery from your X200, then remove all the screws on - the bottom (underside) of the machine. Then remove the keyboard and palmrest. - The flash chip is below the palm rest. Lift back the tape that goes over it, - and then connect your 5252/5250 (make sure to get it the right way round). - Then connect the 3.3v PSU wire (red one) and make sure that everything else is connected. + This tutorial tells you to use an ATX PSU, for the 3.3V DC + supply. The PSU used when taking these photos is actually + not an ATX PSU, but a PSU that is designed specifically + for providing 3.3V DC (an ATX PSU will also work):
    + +

    +

    + Now, you should be ready to install libreboot.

    Flashrom binaries for ARM (tested on a BBB) are distributed in libreboot_util. Alternatively, libreboot also distributes flashrom source code which can be built.

    - I did (SSH'd into the BBB):
    + Log in as root on your BBB, using the instructions in + bbb_setup.html#bbb_access. +

    + +

    + Test that flashrom works:
    # ./flashrom -p linux_spi:dev=/dev/spidev1.0,spispeed=512
    - In my case, the output was: + In this case, the output was:

     flashrom v0.9.7-r1854 on Linux 3.8.13-bone47 (armv7l)
    @@ -148,46 +212,38 @@ Multiple flash chip definitions match the detected chip(s): "MX25L6405(D)&q
     Please specify which chip definition to use with the -c <chipname> option.
     

    - This is just to test that it's working. In my case, I had to define which chip to use, like so (in your case - it may be different, depending on what flash chip you have):
    - # ./flashrom -p linux_spi:dev=/dev/spidev1.0,spispeed=512 -c "MX25L6405(D)" -

    -

    - At this point, you need to create a copy of the original lenovo firmware that is currently flashed. - This is so that you can extract the gbe (gigabit ethernet) and flash descriptor regions for use in libreboot. These - are not blobs, they only contain non-functional data (configuration details, fully readable) which is fully documented in public datasheets. - The descriptor will need to be modified - to disable the ME (also disable AMT) so that you can flash a ROM that excludes it. -

    -

    How to backup factory.rom (change the -c option as neeed, for your flash chip):
    - # ./flashrom -p linux_spi:dev=/dev/spidev1.0,spispeed=512 -c "MX25L6405(D)" -r factory.rom
    - # ./flashrom -p linux_spi:dev=/dev/spidev1.0,spispeed=512 -c "MX25L6405(D)" -r factory1.rom
    - # ./flashrom -p linux_spi:dev=/dev/spidev1.0,spispeed=512 -c "MX25L6405(D)" -r factory2.rom
    + # ./flashrom -p linux_spi:dev=/dev/spidev1.0,spispeed=512 -r factory.rom
    + # ./flashrom -p linux_spi:dev=/dev/spidev1.0,spispeed=512 -r factory1.rom
    + # ./flashrom -p linux_spi:dev=/dev/spidev1.0,spispeed=512 -r factory2.rom
    + Note: the -c option is not required in libreboot's patched flashrom, because + the redundant flash chip definitions in flashchips.c have been removed.
    Now compare the 3 images:
    # sha512sum factory*.rom
    If the hashes match, then just copy one of them (the factory.rom) to a safe place (on a drive connected to another machine, not - the BBB). You will need it later for part of the deblobbing. + the BBB). This is useful for reverse engineering work, if there is a desirable behaviour in the original firmware + that could be replicated in coreboot and libreboot. +

    +

    + Follow the instructions at ../hcl/gm45_remove_me.html#ich9gen + to change the MAC address inside the libreboot ROM image, before flashing it. + Although there is a default MAC address inside the ROM image, this is not what you want. Make sure + to always change the MAC address to one that is correct for your system.

    - Information about the descriptor, gbe regions and how the ME was removed can be found in the notes linked at - ../hcl/gm45_remove_me.html. Libreboot ROM images now include - the 12KiB descriptor+gbe by default, generated using ich9gen; - however, do note that the MAC address in the Gbe region is generic. Follow the instructions at - ../hcl/gm45_remove_me.html#ich9gen and do what it says to change the MAC address - inside your X200 ROM image, before flashing it. + Now flash it:
    + # ./flashrom -p linux_spi:dev=/dev/spidev1.0,spispeed=512 -w path/to/libreboot/rom/image.rom -V

    - Assuming that your libreboot ROM image is properly setup (modified descriptor plus gbe region included in the ROM), - then you can flash (assuming that the filename is libreboot.rom) for example I had to do:
    - # ./flashrom -p linux_spi:dev=/dev/spidev1.0,spispeed=512 -c "MX25L6405(D)" -w libreboot.rom +

    You might see errors, but if it says Verifying flash... VERIFIED at the end, then it's flashed and should boot. - Test it! (boot your X200) + If you see errors, try again (and again, and again); the message Chip content is identical to the requested image + is also an indication of a successful installation.

    - My output when running the command above: + Example output from running the command (see above):

     flashrom v0.9.7-r1854 on Linux 3.8.13-bone47 (armv7l)
    --
    cgit v0.9.1