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path: root/src/mainboard/lenovo/l520/acpi
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2017-02-28mainboard/lenovo: Power off USB and mute audio before entering S3Nicola Corna
Currently, the USB ports are still powered during S3, so turning them off may reduce the power consumption. Note that, when the USB Always on feature is enabled, the USB ports are always powered, regardless of the USBP state. This patch also disables the audio, as it might consume some power or generate some noise. Both the USB power and the audio are reenabled by coreboot during the poweron. Change-Id: If0431b1315fffef2e372e7023f830a66bb7fddae Signed-off-by: Nicola Corna <nicola@corna.info> Reviewed-on: https://review.coreboot.org/18464 Tested-by: build bot (Jenkins) Reviewed-by: Alexander Couzens <lynxis@fe80.eu>
2017-01-24mainboard/lenovo: Add new port L520Patrick Rudolph
Add support for Lenovo Thinkpad L520. The files are generated by autoport, and are successfully tested on the board. L520 has got 4MiB flash chip, that contains a "slim" ME with 1.2MiB only. The flash IC has to be desoldered, as it won't be accessible in circuit. It is located on top of the mainboard right under the touchpad. Test-setup: Extract the following blobs from vendor BIOS: * Intel Flash Descriptor * Intel Management Engine * Intel VBios The laptop has been externaly flashed. It was able to turn on the display and load SeaBIOS. Latest debian has been booted from harddisk. Latest fedora has been booted from USB flash drive. The following hardware has been tested and is working: * Display using Option Rom * PCIe wifi * Ethernet * Keyboard, trackpoint and touchpad * Some Fn functions keys * Volume Keys (except mic mute) * Status LEDs * Audio (headphone jack only) * USB ports * Native raminit dual channel (2 DDR3-1333 DIMMs tested) * SATA cdrom * SATA harddrive Broken: * Some Fn functions keys * Microphone mute button * Speakers (but headphone jack gives sound) Untested: * Expansion slot * SD card slot * Docking station * Native gfx init The EHCI debug port is the first one on the right side. Change-Id: Ic8943799b953bde09ff1daf8427ce5125a0778ca Signed-off-by: Patrick Rudolph <siro@das-labor.org> Reviewed-on: https://review.coreboot.org/18003 Tested-by: build bot (Jenkins) Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>