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coreboot-kgpe-d16/Documentation/mainboard/lenovo/t4xx_series.md

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Documentation: Add basic flashing tutorial for Lenovo * Add basic flashing tutorial ** Describe internal and external flashing ** Describe flash supply diode protection ** Gives general advices on flashing ** Describe how to use flashrom --ifd * Describe basic flashing on Lenovo T4xx devices ** Describe how to disassemble and access the flash IC on T4xx ** Describe flash layout on Sandy Bridge and Ivy Bridge series. Change-Id: Ia833e27f4e7d89ee32be9bed21a0c021839facec Signed-off-by: Patrick Rudolph <siro@das-labor.org> Reviewed-on: https://review.coreboot.org/27852 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2018-08-04 10:04:45 +02:00
# Lenovo T4xx series disassembly instructions
A skilled engineer takes around 40 minutes to disassemble, flash and reassemble
the whole device.
Documentation/mb/lenovo/t4xx_series: Change "Steps to access the flash IC" to sub-heading This heading should not be a top-level heading, because it's not at the top of the file. Also remove the trailing colon, because it's unnecessary in a heading. Change-Id: I0685bb8734ad899c29618d24c0497e4fb8c0d01c Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-on: https://review.coreboot.org/28826 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2018-09-30 21:02:07 +02:00
## Steps to access the flash IC
Documentation: Add basic flashing tutorial for Lenovo * Add basic flashing tutorial ** Describe internal and external flashing ** Describe flash supply diode protection ** Gives general advices on flashing ** Describe how to use flashrom --ifd * Describe basic flashing on Lenovo T4xx devices ** Describe how to disassemble and access the flash IC on T4xx ** Describe flash layout on Sandy Bridge and Ivy Bridge series. Change-Id: Ia833e27f4e7d89ee32be9bed21a0c021839facec Signed-off-by: Patrick Rudolph <siro@das-labor.org> Reviewed-on: https://review.coreboot.org/27852 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2018-08-04 10:04:45 +02:00
* Unplug the main battery
* Remove the harddisk, CDROM, ExpressCard, SIM-card, SDcard, SmartCard, ...
* Open the bottom flap and remove the keyboard screw
* Remove the keyboard
* Remove the screen
* Remove the top enclosure
* Remove the CMOS battery
* Remove the speakers
* Remove WWAN and WIFI card
* Remove the CPU fan
* Unplug the power cable
* Remove the bottom enclosure
* Flip the mainboard and remove the main frame
mb/lenovo/t400: Improve docking code * Remove dead code * Add support for types 2504 and 2505 * Print dock info at romstage entry * Improve dock disconnect for type 2505 * Move defines into dock.h for future ACPI code * Reduce timeouts according to spec to decrease boot time on error * Fix no docking detection (reduces boot time by 1 second) * Configure GPIO LDN before reading GPIOs * Use Kconfig values instead of fixed defines * Add documentation Tested on Lenovo T500 with docking 2504 and 2505. Change-Id: Ic4510ffadc67da95961cecd51a6d8ed856b3ac99 Signed-off-by: Patrick Rudolph <siro@das-labor.org> Reviewed-on: https://review.coreboot.org/29418 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2018-10-30 17:38:13 +01:00
## Docking stations
The following docking stations are supported by coreboot:
* Type 2505
* VGA, Ethernet, Modem, PS2, 4 USB Ports
* Dock ID on pc87382 reads as: 2
* Type 2504
* Serial, LPT, LEDs, Audio, DVI, VGA, Ethernet, Modem, PS2, 4 USB Ports
* Dock ID on pc87382 reads as: 1
* PNP IO address of SuperIO pc87384: 0x2e
There's no hotplug support for LPT and Serial on Type 2504.
The Dock ID reads as 7 if no dock is connected.