From 0cd098e4e41d6bb3b27327d4a6526bd7004bfc77 Mon Sep 17 00:00:00 2001 From: Maccraft Date: Mon, 7 Oct 2019 20:28:51 +0200 Subject: 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 Reviewed-on: https://review.coreboot.org/c/coreboot/+/35864 Tested-by: build bot (Jenkins) Reviewed-by: Arthur Heymans --- Documentation/mainboard/lenovo/r60.md | 44 ++++++++++++++++++++++++++++ Documentation/mainboard/lenovo/r60_chip.jpg | Bin 0 -> 70098 bytes 2 files changed, 44 insertions(+) create mode 100644 Documentation/mainboard/lenovo/r60.md create mode 100644 Documentation/mainboard/lenovo/r60_chip.jpg (limited to 'Documentation/mainboard/lenovo') 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 new file mode 100644 index 0000000000..94d26a1001 Binary files /dev/null and b/Documentation/mainboard/lenovo/r60_chip.jpg differ -- cgit v1.2.3