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path: root/src/mainboard/hp/8770w/gpio.c
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2018-05-13mainboard/hp: Add HP Elitebook 8770wxiinc37
This is based on the code from the 8470p port. Tested on the quad core/quad SODIMM version. This laptop uses discrete MXM 3.0b graphics cards. Tested working with both Quadro K3000M and GTX 980M 8GB. The laptop must be completely disassembled down to the motherboard to perform the initial flash, subsequent flashes can be done internally via flashrom. There is a simple mod that can be performed to make subsequent external flashes easier in case of a brick, I'll put more information on this on the wiki later. The lack of an MXM structure built in to the firmware causes the GPU to enter a mode with nerfed performance, there is a workaround though, I'll add this to the wiki as well. I have no info on EHCI debugging. Tested and working: - memory: 4G+4G, 4G+4G+4G+4G - Linux (Debian Stretch with kernel 4.9.0) booted from SeaBIOS payload with graphics init disabled in coreboot. I allowed SeaBIOS to load the VBIOS from the MXM. - WLAN - keyboard, trackpoint and touchpad - USB - serial port on dock - fan control - VGA - DisplayPort - Audio - Both HDD SATA ports, ODD SATA, eSATA - S3 with SeaBIOS 1.11, SERCON must be disabled - Brightness and volume FN keys - Mute and calculator hotkeys - Status LEDs - Bluetooth Not working: - GRUB2 as payload will freeze. Has something to do with at_keyboard module. The built in keyboard requires this module to function though. - Sleep FN key - WiFi toggle and internet browser hotkeys - S3 fails to resume (restarts) if the laptop is removed from AC power, or gets unplugged and then plugged back in while suspended. Sleep status LEDs remain normal during this process. Change-Id: Ic4ff64e9cf0c7a51ac48ca2fe6fe8beab02e9f9a Signed-off-by: Robert Reeves <xiinc37@gmail.com> Reviewed-on: https://review.coreboot.org/23651 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>