Date: Fri, 06 Nov 2015 17:43:29 -0500 Subject: convert documentation to texinfo --- (limited to 'docs/hcl/t500.html') diff --git a/docs/hcl/t500.html b/docs/hcl/t500.html deleted file mode 100644 index 3b3bb53..0000000 --- a/docs/hcl/t500.html +++ /dev/null @@ -1,191 +0,0 @@ - - - - - - - - - ThinkPad T500 - - - - -

ThinkPad T500

- -

- It is believed that all or most T500 laptops are compatible. - See notes about CPU compatibility - for potential incompatibilities. -

- -

- There are two possible flash chip sizes for the T500: 4MiB (32Mbit) or 8MiB (64Mbit). - This can be identified by the type of flash chip below the palmrest: 4MiB is SOIC-8, 8MiB - is SOIC-16. -

- -

- The T500 laptops come with the ME (and sometimes AMT in addition) before flashing libreboot. Libreboot disables and removes it - by using a modified descriptor: see gm45_remove_me.html (contains notes, plus - instructions) -

- -

- Flashing instructions can be found at ../install/index.html#flashrom -

- -

- Back to previous index. -

- -

Compatibility (without blobs)

- -

Hardware virtualization (vt-x)

- The T500, when run without CPU microcode updates in coreboot, currently kernel panics - if running QEMU with vt-x enabled on 2 cores for the guest. With a single core enabled - for the guest, the guest panics (but the host is fine). Working around this in QEMU - might be possible; if not, software virtualization should work fine (it's just slower). -

- On GM45 hardware (with libreboot), make sure that the kvm and kvm_intel kernel modules - are not loaded, when using QEMU. -

- The following errata datasheet from Intel might help with investigation: - http://download.intel.com/design/mobile/specupdt/320121.pdf -

- -

- The T500 is almost identical to the X200, code-wise. See x200.html. -

- -

LCD compatibly

- Not all LCD panels are compatible yet. See gm45_lcd.html. -

- -

- Descriptor and Gbe differences -

- -

- See - ../future/dumps/t500_x200_descriptor/descriptor_diff_t500_x200.txt - and - ../future/dumps/t500_x200_descriptor/gbe_diff_t500_x200.txt -

- -

- The patches above are based on the output from ich9deblob on a factory.rom image dumped from the T500 - with a SOIC-8 4MiB flash chip. The patch re-creates the X200 descriptor/gbe source, so the commands were - something like:
- $ diff -u t500gbe x200gbe
- $ diff -u t500descriptor x200descriptor -

- -

- ME VSCC table is in a different place and a different size on the T500. Libreboot disables and removes the ME - anyway, so it doesn't matter. -

- -

- The very same descriptor/gbe used on the X200 (generated by ich9gen) - was re-used on the T500, and it still worked. -

- -

Hardware register dumps

- -

- The coreboot wiki shows - how to collect various logs useful in porting to new - boards. Following are outputs from the T500: -

- -

- T500 with Macronix MX25L3205D flash chip (4MiB, SOIC-8) - and Lenovo BIOS 3.13 7VET83WW (EC firmware 1.06): -
- ../future/dumps/t500log/
-

- -

- Copyright © 2015 Francis Rowe <info@gluglug.org.uk>
- Permission is granted to copy, distribute and/or modify this document - under the terms of the GNU Free Documentation License, Version 1.3 - or any later version published by the Free Software Foundation; - with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. - A copy of the license can be found at ../gfdl-1.3.txt -

- -

- Updated versions of the license (when available) can be found at - https://www.gnu.org/licenses/licenses.html -

- -

- UNLESS OTHERWISE SEPARATELY UNDERTAKEN BY THE LICENSOR, TO THE - EXTENT POSSIBLE, THE LICENSOR OFFERS THE LICENSED MATERIAL AS-IS - AND AS-AVAILABLE, AND MAKES NO REPRESENTATIONS OR WARRANTIES OF - ANY KIND CONCERNING THE LICENSED MATERIAL, WHETHER EXPRESS, - IMPLIED, STATUTORY, OR OTHER. THIS INCLUDES, WITHOUT LIMITATION, - WARRANTIES OF TITLE, MERCHANTABILITY, FITNESS FOR A PARTICULAR - PURPOSE, NON-INFRINGEMENT, ABSENCE OF LATENT OR OTHER DEFECTS, - ACCURACY, OR THE PRESENCE OR ABSENCE OF ERRORS, WHETHER OR NOT - KNOWN OR DISCOVERABLE. WHERE DISCLAIMERS OF WARRANTIES ARE NOT - ALLOWED IN FULL OR IN PART, THIS DISCLAIMER MAY NOT APPLY TO YOU. -

- TO THE EXTENT POSSIBLE, IN NO EVENT WILL THE LICENSOR BE LIABLE - TO YOU ON ANY LEGAL THEORY (INCLUDING, WITHOUT LIMITATION, - NEGLIGENCE) OR OTHERWISE FOR ANY DIRECT, SPECIAL, INDIRECT, - INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY, OR OTHER LOSSES, - COSTS, EXPENSES, OR DAMAGES ARISING OUT OF THIS PUBLIC LICENSE OR - USE OF THE LICENSED MATERIAL, EVEN IF THE LICENSOR HAS BEEN - ADVISED OF THE POSSIBILITY OF SUCH LOSSES, COSTS, EXPENSES, OR - DAMAGES. WHERE A LIMITATION OF LIABILITY IS NOT ALLOWED IN FULL OR - IN PART, THIS LIMITATION MAY NOT APPLY TO YOU. -

- The disclaimer of warranties and limitation of liability provided - above shall be interpreted in a manner that, to the extent - possible, most closely approximates an absolute disclaimer and - waiver of all liability. -

- -

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