Date: Mon, 22 Aug 2016 10:22:04 +0100 Subject: actually add the documentation directory. (I forgot git add in last commit) --- docs/hcl/r400.html | 140 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 140 insertions(+) create mode 100644 docs/hcl/r400.html (limited to 'docs/hcl/r400.html') diff --git a/docs/hcl/r400.html b/docs/hcl/r400.html new file mode 100644 index 00000000..678a610a --- /dev/null +++ b/docs/hcl/r400.html @@ -0,0 +1,140 @@ + + + + + + + + + ThinkPad R400 + + + + +

ThinkPad R400

+ +

+ It is believed that all or most R400 laptops are compatible. + See notes about CPU compatibility for + potential incompatibilities. +

+ +

+ There are two possible flash chip sizes for the R400: 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 R400 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 R400, 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 R400 is almost identical to the X200, code-wise. See x200.html. +

+ +

+ TODO: put hardware register logs here like on the X200 and T400 page. +

+ +

LCD compatibly

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

+ +

+ Copyright © 2014, 2015 Leah Rowe <info@minifree.org>
+ 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. +

+ +

+ + + -- cgit v1.2.3-70-g09d2