diff options
author | Maccraft <maccraft123mc@gmail.com> | 2019-10-07 20:28:51 +0200 |
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committer | Patrick Georgi <pgeorgi@google.com> | 2019-10-25 20:07:16 +0000 |
commit | 0cd098e4e41d6bb3b27327d4a6526bd7004bfc77 (patch) | |
tree | e2efaebfd6f4b797ceffda7be75ce85c5cfabea9 /Documentation/mainboard | |
parent | 9be81b8d4b911a064e023cafb17490f101da6cd4 (diff) |
mb/lenovo/{t60,r60}: Add ThinkPad R60 support as variant board
- This port should be Reclaim Your Freedom compliant
(not certified yet).
- Untested on boards with external Radeon graphics adapter.
- Some columns on the left-most side of display are completely
black on 1400x1050 IPS display[1]. Display works fine on Linux.
I don't know why it appears like that. So far it has been observed
only with native graphics initialization.
- Only GRUB2 and SeaBIOS payloads tested for now.
- 2504 docking station USB doesn't work under Linux.
Can detect pendrive in GRUB2 payload.
- Sometimes it takes 20s of "pretending it's powered off" to run
coreboot code. Issue is payload agnostic.
Probably caused by missing one capacitor on my unit.
[1] https://imgur.com/a/0wpMGsm
Change-Id: Ibd9208a5eafd228f8eedbc8fb4f4eb9ed1932a14
Signed-off-by: Maciej Matuszczyk <maccraft123mc@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35864
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Diffstat (limited to 'Documentation/mainboard')
-rw-r--r-- | Documentation/mainboard/index.md | 1 | ||||
-rw-r--r-- | Documentation/mainboard/lenovo/r60.md | 44 | ||||
-rw-r--r-- | Documentation/mainboard/lenovo/r60_chip.jpg | bin | 0 -> 70098 bytes |
3 files changed, 45 insertions, 0 deletions
diff --git a/Documentation/mainboard/index.md b/Documentation/mainboard/index.md index 2aa276361e..4c9d08cc97 100644 --- a/Documentation/mainboard/index.md +++ b/Documentation/mainboard/index.md @@ -65,6 +65,7 @@ The boards in this section are not real mainboards, but emulators. - [Mainboard codenames](lenovo/codenames.md) - [Hardware Maintenance Manual of ThinkPads](lenovo/thinkpad_hmm.md) +- [R60](lenovo/r60.md) - [T4xx common](lenovo/t4xx_series.md) - [X2xx common](lenovo/x2xx_series.md) diff --git a/Documentation/mainboard/lenovo/r60.md b/Documentation/mainboard/lenovo/r60.md new file mode 100644 index 0000000000..91854fbfb6 --- /dev/null +++ b/Documentation/mainboard/lenovo/r60.md @@ -0,0 +1,44 @@ +# Lenovo Thinkpad R60 + +Untested on boards with external Radeon graphics adapter. If you have such +board, proceed at your own risk and document if it does work. + +## Flashing instructions + +### External flashing + +The flash IC is located at the bottom center of the mainboard. Access to +the flash chip is blocked by the magnesium frame, so you need to disassemble +the entire laptop and remove the mainboard. The flash chip is referenced as U49 in +the schematics and in the boardview. + +![](r60_chip.jpg) + +To disassemble the laptop, follow the [Hardware Maintenance Manual](https://thinkpads.com/support/hmm/hmm_pdf/42x3749_02.pdf). + +### Internal flashing on Vendor BIOS + +This [method](https://gist.github.com/ArthurHeymans/c5ef494ada01af372735f237f6c6adbe) describes a way to install coreboot with vendor firmware still +installed on the Lenovo Thinkpad X60. It is reported to also work in Thinkpad +R60, with the only difference being the board target you build coreboot for. + +### Flashing on coreboot + +Default configuration of coreboot doesn't feature any flash restrictions +like the vendor firmware, therefore flashrom is able to flash any rom without problems. + +## Things tested and working in Linux 5.3: + +- Intel WiFi card +- Suspend and resume +- Native graphics initialization. Both legacy VGA and linear framebuffer work +- GRUB2 2.04 and SeaBIOS 1.12.1 payloads +- Reflashing with flashrom (use flashrom-git as of 17.09.2019) +- 2G+1G memory configuration working +- 2504 dock USB ports if not hotplugged + +## Things tested and not working: + +- 2504 dock hotplugging +- Black bar at the left side of the screen. Doesn't appear in Linux. See picture at top +- Sometimes it takes several second to run coreboot. Just wait for it diff --git a/Documentation/mainboard/lenovo/r60_chip.jpg b/Documentation/mainboard/lenovo/r60_chip.jpg Binary files differnew file mode 100644 index 0000000000..94d26a1001 --- /dev/null +++ b/Documentation/mainboard/lenovo/r60_chip.jpg |