coreboot-kgpe-d16/src/ec/hp/kbc1126/Kconfig
Iru Cai 44d399c394 ec: add support for KBC1126 in HP laptops
- let the coreboot build system insert the two blobs to the coreboot image
- EC and Super I/O initialization
- ACPI support

Tested on 2760p, 8460p, 2570p, 8470p.

Issue:

Kernel gives the following error:

  ACPI Error: No handler for Region [ECRM] (...) [EmbeddedControl]
  ACPI Error: Region EmbeddedControl (ID=3) has no handler

TODO:

- consider moving the Super I/O initialization code to ramstage, or
  reuse the existing sio/smsc/kbc1100 code (if so, how to add the
  additional kbc1126 specific functions to sio/kbc1100)
- sort out the ACPI code which is mostly from the ACPI dump of vendor
  firmware
- find out why the digitizer in hp/2760p doesn't work
- GRUB payload freezing on all HP Elitebooks may be related to EC

Change-Id: I6b16eb7e26303eda740f52d667dedb7cc04b4ef0
Signed-off-by: Iru Cai <mytbk920423@gmail.com>
Reviewed-on: https://review.coreboot.org/19072
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2017-08-11 16:10:52 +00:00

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##
## This file is part of the coreboot project.
##
## Copyright (C) 2017 Iru Cai
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; version 2 of the License.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
config EC_HP_KBC1126
bool
help
Interface to SMSC KBC1126 embedded controller in HP laptops.
if EC_HP_KBC1126
comment "Please select the following otherwise your laptop cannot be powered on."
config KBC1126_FIRMWARE
bool "Add firmware images for KBC1126 EC"
depends on EC_HP_KBC1126
default n
help
Select this option to add the two firmware blobs for KBC1126.
You need these two blobs to power on your machine.
config KBC1126_FW1
string "KBC1126 firmware #1 path and filename"
depends on KBC1126_FIRMWARE
default "fw1.bin"
help
The path and filename of the file to use as KBC1126 firmware #1.
You can use util/kbc1126/kbc1126_ec_dump to dump it from the
vendor firmware.
config KBC1126_FW1_OFFSET
string
depends on KBC1126_FIRMWARE
default "0xffffe800"
config KBC1126_FW2
string "KBC1126 filename #2 path and filename"
depends on KBC1126_FIRMWARE
default "fw2.bin"
help
The path and filename of the file to use as KBC1126 firmware #2.
You can use util/kbc1126/kbc1126_ec_dump to dump it from the
vendor firmware.
config KBC1126_FW2_OFFSET
string
depends on KBC1126_FIRMWARE
default "0xfffee000"
endif