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Documentation: Add Montevina ThinkPads common page - Add a common page about Montevina ThinkPads. - Describe how to disable ME and remove its firmware on these models. - Describe vendor flash layouts. Thanks to swiftgeek for his help when writing this, especially the last paragraph and flash layouts. Change-Id: I85917821efe63fff4b933b6226e99c17b63eb1b9 Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38926 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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# Lenovo X200 / T400 / T500 / X301 common
These models are sold with either 8 MiB or 4 MiB flash chip. You can identify
the chip in your machine through flashrom:
```console
# flashrom -p internal
```
Note that this does not allow you to determine whether the chip is in a SOIC-8
or a SOIC-16 package.
Doc/mb/lenovo: Explain simpler GM45 flash method first Do not mislead newcomers into thinking the GM45 series laptops are hard to flash. Describe the simple coreboot flashing procedure first, then explain how to remove the ME firmware and use a custom flash layout. Also, reword a sentence on the simple flashing procedure for clarity. Change-Id: Ie83ec3d20f00e9d9c869e483e24d601506857f07 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/48604 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Swift Geek (Sebastian Grzywna) <swiftgeek@gmail.com> Reviewed-by: Evgeny Zinoviev <me@ch1p.io>
2020-12-12 19:03:28 +01:00
## Installing with ME firmware
To install coreboot and keep ME working, you don't need to do anything special
with the flash descriptor. Only flash the `bios` region externally and don't
touch any other regions:
```console
# flashrom -p YOUR_PROGRAMMER -w coreboot.rom --ifd -i bios
```
Documentation: Add Montevina ThinkPads common page - Add a common page about Montevina ThinkPads. - Describe how to disable ME and remove its firmware on these models. - Describe vendor flash layouts. Thanks to swiftgeek for his help when writing this, especially the last paragraph and flash layouts. Change-Id: I85917821efe63fff4b933b6226e99c17b63eb1b9 Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38926 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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## Installing without ME firmware
```eval_rst
.. Note::
**ThinkPad R500** has slightly different flash layout (it doesn't have
``gbe`` region), so the process would be a little different for that model.
```
On Montevina machines it's possible to disable ME and remove its firmware from
SPI flash by modifying the flash descriptor. This also makes it possible to use
the flash region the ME used for `bios` region, allowing for much larger
payloads.
First of all create a backup of your ROM with an external programmer:
```console
# flashrom -p YOUR_PROGRAMMER -r backup.rom
```
Documentation: Fix a typo filse -> files Change-Id: Iaf0c3a064b42dde70b1e01cfc15ad3187bf8bfcc Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39449 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Peter Lemenkov <lemenkov@gmail.com>
2020-03-11 13:36:04 +01:00
Then, split the IFD regions into separate files with ifdtool. You will need
Documentation: Add Montevina ThinkPads common page - Add a common page about Montevina ThinkPads. - Describe how to disable ME and remove its firmware on these models. - Describe vendor flash layouts. Thanks to swiftgeek for his help when writing this, especially the last paragraph and flash layouts. Change-Id: I85917821efe63fff4b933b6226e99c17b63eb1b9 Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38926 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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`flashregion_3_gbe.bin` later.
```console
$ ifdtool -x backup.rom
```
Now you need to patch the flash descriptor. You can either [modify the one from
your backup with **ifdtool**](#modifying-flash-descriptor-using-ifdtool), or
[generate a completely new one with **bincfg**](#creating-a-new-flash-descriptor-using-bincfg).
#### Modifying flash descriptor using ifdtool
Pick the layout according to your chip size from the table below and save it to
the `new_layout.txt` file:
```eval_rst
+---------------------------+---------------------------+---------------------------+
Documentation: Use correct KiB/MiB units instead of KB/MB Fix a common mistake of using KB/MB where KiB/MiB is what actually is meant. 1 MB = (10^3)^2 = 1000000 1 MiB = (2^10)^2 = 1048576 Change-Id: I78327652b6c6526318071a9d4bafd7ec279ea614 Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39685 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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| 4 MiB chip | 8 MiB chip | 16 MiB chip |
Documentation: Add Montevina ThinkPads common page - Add a common page about Montevina ThinkPads. - Describe how to disable ME and remove its firmware on these models. - Describe vendor flash layouts. Thanks to swiftgeek for his help when writing this, especially the last paragraph and flash layouts. Change-Id: I85917821efe63fff4b933b6226e99c17b63eb1b9 Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38926 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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+===========================+===========================+===========================+
| .. code-block:: none | .. code-block:: none | .. code-block:: none |
| | | |
| 00000000:00000fff fd | 00000000:00000fff fd | 00000000:00000fff fd |
| 00001000:00002fff gbe | 00001000:00002fff gbe | 00001000:00002fff gbe |
doc/mb/lenovo/montevina: Fix constants for 16MiB flash The current values are actually for 32MiB and result in a brick if used with a 16MiB chip because of the invalid bios region. Change-Id: I08337394ce0d6e31e5c03cda2bfb3b9f0282f2c3 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51322 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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| 00003000:003fffff bios | 00003000:007fffff bios | 00003000:00ffffff bios |
Documentation: Add Montevina ThinkPads common page - Add a common page about Montevina ThinkPads. - Describe how to disable ME and remove its firmware on these models. - Describe vendor flash layouts. Thanks to swiftgeek for his help when writing this, especially the last paragraph and flash layouts. Change-Id: I85917821efe63fff4b933b6226e99c17b63eb1b9 Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38926 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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| 00fff000:00000fff pd | 00fff000:00000fff pd | 00fff000:00000fff pd |
| 00fff000:00000fff me | 00fff000:00000fff me | 00fff000:00000fff me |
+---------------------------+---------------------------+---------------------------+
```
The last two lines define `pd` and `me` regions of negative size. This way
ifdtool will mark those as unused.
Update regions in the flash descrpitor (it was extracted previously with
`ifdtool -x`):
```console
$ ifdtool -n new_layout.txt flashregion_0_flashdescriptor.bin
```
Set `MeDisable` bit in ICH0 and MCH0 straps:
```console
$ ifdtool -M 1 flashregion_0_flashdescriptor.bin.new
```
Delete previous descriptors and rename the final one:
```console
$ rm flashregion_0_flashdescriptor.bin
$ rm flashregion_0_flashdescriptor.bin.new
$ mv flashregion_0_flashdescriptor.bin.new.new flashregion_0_flashdescriptor.bin
```
Continue to the [Configuring coreboot](#configuring-coreboot) section.
doc/mb/lenovo/montevina: Clarify use of bincfg `bincfg` is not creating anything new, it just converts from text to binary. Change-Id: I14e67ee8bc449d171a951f6edeaa9f9d0c04dbe1 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51319 Reviewed-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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#### Using checked-in flash descriptor via bincfg
Documentation: Add Montevina ThinkPads common page - Add a common page about Montevina ThinkPads. - Describe how to disable ME and remove its firmware on these models. - Describe vendor flash layouts. Thanks to swiftgeek for his help when writing this, especially the last paragraph and flash layouts. Change-Id: I85917821efe63fff4b933b6226e99c17b63eb1b9 Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38926 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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doc/mb/lenovo/montevina: Clarify use of bincfg `bincfg` is not creating anything new, it just converts from text to binary. Change-Id: I14e67ee8bc449d171a951f6edeaa9f9d0c04dbe1 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51319 Reviewed-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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There is a copy of an X200's flash descriptor checked into the coreboot
repository. It is supposed to work for the T400/T500 as well. The descriptor
can be converted back to its binary form using a tool called **bincfg**. Go
to `util/bincfg` and build it:
Documentation: Add Montevina ThinkPads common page - Add a common page about Montevina ThinkPads. - Describe how to disable ME and remove its firmware on these models. - Describe vendor flash layouts. Thanks to swiftgeek for his help when writing this, especially the last paragraph and flash layouts. Change-Id: I85917821efe63fff4b933b6226e99c17b63eb1b9 Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38926 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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```console
$ cd util/bincfg
$ make
```
Documentation: Use correct KiB/MiB units instead of KB/MB Fix a common mistake of using KB/MB where KiB/MiB is what actually is meant. 1 MB = (10^3)^2 = 1000000 1 MiB = (2^10)^2 = 1048576 Change-Id: I78327652b6c6526318071a9d4bafd7ec279ea614 Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39685 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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If your flash is not 8 MiB, you need to change values of `flcomp_density1` and
Doc/mb/lenovo: Mark up file name as code/monospace Change-Id: I397b1dc0c3faf65811889d4c5814d6dcca7fe6b4 Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/43748 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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`flreg1_limit` in the `ifd-x200.set` file according to following table:
Documentation: Add Montevina ThinkPads common page - Add a common page about Montevina ThinkPads. - Describe how to disable ME and remove its firmware on these models. - Describe vendor flash layouts. Thanks to swiftgeek for his help when writing this, especially the last paragraph and flash layouts. Change-Id: I85917821efe63fff4b933b6226e99c17b63eb1b9 Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38926 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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```eval_rst
+-----------------+-------+-------+--------+
Documentation: Use correct KiB/MiB units instead of KB/MB Fix a common mistake of using KB/MB where KiB/MiB is what actually is meant. 1 MB = (10^3)^2 = 1000000 1 MiB = (2^10)^2 = 1048576 Change-Id: I78327652b6c6526318071a9d4bafd7ec279ea614 Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39685 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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| | 4 MiB | 8 MiB | 16 MiB |
Documentation: Add Montevina ThinkPads common page - Add a common page about Montevina ThinkPads. - Describe how to disable ME and remove its firmware on these models. - Describe vendor flash layouts. Thanks to swiftgeek for his help when writing this, especially the last paragraph and flash layouts. Change-Id: I85917821efe63fff4b933b6226e99c17b63eb1b9 Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38926 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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+=================+=======+=======+========+
| flcomp_density1 | 0x3 | 0x4 | 0x5 |
+-----------------+-------+-------+--------+
doc/mb/lenovo/montevina: Fix constants for 16MiB flash The current values are actually for 32MiB and result in a brick if used with a 16MiB chip because of the invalid bios region. Change-Id: I08337394ce0d6e31e5c03cda2bfb3b9f0282f2c3 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51322 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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| flreg1_limit | 0x3ff | 0x7ff | 0xfff |
Documentation: Add Montevina ThinkPads common page - Add a common page about Montevina ThinkPads. - Describe how to disable ME and remove its firmware on these models. - Describe vendor flash layouts. Thanks to swiftgeek for his help when writing this, especially the last paragraph and flash layouts. Change-Id: I85917821efe63fff4b933b6226e99c17b63eb1b9 Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38926 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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+-----------------+-------+-------+--------+
```
doc/mb/lenovo/montevina: Clarify use of bincfg `bincfg` is not creating anything new, it just converts from text to binary. Change-Id: I14e67ee8bc449d171a951f6edeaa9f9d0c04dbe1 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51319 Reviewed-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Then convert the flash descriptor:
Documentation: Add Montevina ThinkPads common page - Add a common page about Montevina ThinkPads. - Describe how to disable ME and remove its firmware on these models. - Describe vendor flash layouts. Thanks to swiftgeek for his help when writing this, especially the last paragraph and flash layouts. Change-Id: I85917821efe63fff4b933b6226e99c17b63eb1b9 Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38926 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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```console
Doc/mb/lenovo/montevina_series: Use Makefile to generate IFD util/bincfg's Makefile already has target that generates flash descriptor. Use it instead. Change-Id: I1756514e1ab7b64de23a98314d8a32e9258e648c Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39762 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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$ make gen-ifd-x200
Documentation: Add Montevina ThinkPads common page - Add a common page about Montevina ThinkPads. - Describe how to disable ME and remove its firmware on these models. - Describe vendor flash layouts. Thanks to swiftgeek for his help when writing this, especially the last paragraph and flash layouts. Change-Id: I85917821efe63fff4b933b6226e99c17b63eb1b9 Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38926 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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```
Doc/mb/lenovo/montevina_series: Use Makefile to generate IFD util/bincfg's Makefile already has target that generates flash descriptor. Use it instead. Change-Id: I1756514e1ab7b64de23a98314d8a32e9258e648c Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39762 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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It will be saved to the `flashregion_0_fd.bin` file.
Documentation: Add Montevina ThinkPads common page - Add a common page about Montevina ThinkPads. - Describe how to disable ME and remove its firmware on these models. - Describe vendor flash layouts. Thanks to swiftgeek for his help when writing this, especially the last paragraph and flash layouts. Change-Id: I85917821efe63fff4b933b6226e99c17b63eb1b9 Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38926 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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#### Configuring coreboot
Now configure coreboot. You need to select correct chip size and specify paths
to flash descriptor and gbe dump.
```
Mainboard --->
ROM chip size (8192 KB (8 MB)) # According to your chip
doc/mb/lenovo/montevina: Fix constants for 16MiB flash The current values are actually for 32MiB and result in a brick if used with a 16MiB chip because of the invalid bios region. Change-Id: I08337394ce0d6e31e5c03cda2bfb3b9f0282f2c3 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51322 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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(0x7fd000) Size of CBFS filesystem in ROM # or 0x3fd000 for 4 MiB chip / 0xffd000 for 16 MiB chip
Documentation: Add Montevina ThinkPads common page - Add a common page about Montevina ThinkPads. - Describe how to disable ME and remove its firmware on these models. - Describe vendor flash layouts. Thanks to swiftgeek for his help when writing this, especially the last paragraph and flash layouts. Change-Id: I85917821efe63fff4b933b6226e99c17b63eb1b9 Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38926 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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Chipset --->
[*] Add Intel descriptor.bin file
Doc/mb/lenovo/montevina_series: Use Makefile to generate IFD util/bincfg's Makefile already has target that generates flash descriptor. Use it instead. Change-Id: I1756514e1ab7b64de23a98314d8a32e9258e648c Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39762 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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# Note: if you used bincfg, specify path to generated util/bincfg/flashregion_0_fd.bin
Documentation: Add Montevina ThinkPads common page - Add a common page about Montevina ThinkPads. - Describe how to disable ME and remove its firmware on these models. - Describe vendor flash layouts. Thanks to swiftgeek for his help when writing this, especially the last paragraph and flash layouts. Change-Id: I85917821efe63fff4b933b6226e99c17b63eb1b9 Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38926 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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(/path/to/flashregion_0_flashdescriptor.bin) Path and filename of the descriptor.bin file
[*] Add gigabit ethernet configuration
(/path/to/flashregion_3_gbe.bin) Path to gigabit ethernet configuration
```
Then build coreboot and flash whole `build/coreboot.rom` to the chip.
## Flash layout
The flash layouts of the OEM firmware are as follows:
```eval_rst
+---------------------------------+---------------------------------+
Documentation: Use correct KiB/MiB units instead of KB/MB Fix a common mistake of using KB/MB where KiB/MiB is what actually is meant. 1 MB = (10^3)^2 = 1000000 1 MiB = (2^10)^2 = 1048576 Change-Id: I78327652b6c6526318071a9d4bafd7ec279ea614 Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39685 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-03-20 00:57:00 +01:00
| 4 MiB chip | 8 MiB chip |
Documentation: Add Montevina ThinkPads common page - Add a common page about Montevina ThinkPads. - Describe how to disable ME and remove its firmware on these models. - Describe vendor flash layouts. Thanks to swiftgeek for his help when writing this, especially the last paragraph and flash layouts. Change-Id: I85917821efe63fff4b933b6226e99c17b63eb1b9 Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38926 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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+=================================+=================================+
| .. code-block:: none | .. code-block:: none |
| | |
| 00000000:00000fff fd | 00000000:00000fff fd |
| 00001000:001f5fff me | 00001000:005f5fff me |
| 001f6000:001f7fff gbe | 005f6000:005f7fff gbe |
| 001f8000:001fffff pd | 005f8000:005fffff pd |
| 00200000:003fffff bios | 00600000:007fffff bios |
| 00290000:002affff ec | 00690000:006affff ec |
| 003e0000:003fffff bootblock | 007e0000:007fffff bootblock |
+---------------------------------+---------------------------------+
```
On each boot of vendor BIOS `ec` area in flash is checked for having firmware
there, and if there is one, it proceedes to update firmware on H8S/2116 (when
both external power and main battery are attached). Once update is performed,
Documentation: Use correct KiB/MiB units instead of KB/MB Fix a common mistake of using KB/MB where KiB/MiB is what actually is meant. 1 MB = (10^3)^2 = 1000000 1 MiB = (2^10)^2 = 1048576 Change-Id: I78327652b6c6526318071a9d4bafd7ec279ea614 Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39685 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-03-20 00:57:00 +01:00
first 64 KiB of `ec` area is erased. Visit
Documentation: Add Montevina ThinkPads common page - Add a common page about Montevina ThinkPads. - Describe how to disable ME and remove its firmware on these models. - Describe vendor flash layouts. Thanks to swiftgeek for his help when writing this, especially the last paragraph and flash layouts. Change-Id: I85917821efe63fff4b933b6226e99c17b63eb1b9 Signed-off-by: Evgeny Zinoviev <me@ch1p.io> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38926 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-02-16 00:35:03 +01:00
[thinkpad-ec repository](https://github.com/hamishcoleman/thinkpad-ec) to learn
more about how to extract EC firmware from vendor updates.