From 602d0a42d4bbc8d862e3722b72e59458e7a97999 Mon Sep 17 00:00:00 2001 From: Matt DeVillier Date: Mon, 21 Aug 2017 00:29:47 -0500 Subject: google/reks: add new board as variant of cyan baseboard Add support for google/reks (Lenovo Chromebook N22/N42) as a variant of the cyan Braswell basebaseboard. - Add board-specific code as the new reks variant - Add new I2C touchscreen device and SPD files to the baseboard for potential reuse by other variants Sourced from Chromium branch firmware-reks-7287.133.B, commit 7d812d4: Revert "Revert "soc/intel/braswell: Populate NVS SCC BAR1"" Change-Id: Iac9e2b5661aa33e12927f4cb84ebaee36522a385 Signed-off-by: Matt DeVillier Reviewed-on: https://review.coreboot.org/21128 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth --- .../google/cyan/acpi/touchscreen_melfas.asl | 60 ++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 src/mainboard/google/cyan/acpi/touchscreen_melfas.asl (limited to 'src/mainboard/google/cyan/acpi/touchscreen_melfas.asl') diff --git a/src/mainboard/google/cyan/acpi/touchscreen_melfas.asl b/src/mainboard/google/cyan/acpi/touchscreen_melfas.asl new file mode 100644 index 0000000000..8d36649f51 --- /dev/null +++ b/src/mainboard/google/cyan/acpi/touchscreen_melfas.asl @@ -0,0 +1,60 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Google Inc. + * Copyright (C) 2015 Intel Corp. + * + * 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. + */ + +Scope (\_SB.PCI0.I2C1) +{ + Device (MTSA) + { + Name (_HID, "MLFS0000") + Name (_DDN, "Melfas Touchscreen ") + Name (_UID, 5) + Name (ISTP, 0) /* TouchScreen */ + + Method(_CRS, 0x0, NotSerialized) + { + Name (BUF0, ResourceTemplate () + { + I2cSerialBus( + 0x34, /* SlaveAddress */ + ControllerInitiated, /* SlaveMode */ + 400000, /* ConnectionSpeed */ + AddressingMode7Bit, /* AddressingMode */ + "\\_SB.I2C1", /* ResourceSource */ + ) + Interrupt (ResourceConsumer, Level, ActiveLow) + { + BOARD_TOUCH_IRQ + } + }) + Return (BUF0) + } + + Method (_STA) + { + If (LEqual (\S1EN, 1)) { + Return (0xF) + } Else { + Return (0x0) + } + } + + Name (_PRW, Package() { BOARD_TOUCHSCREEN_WAKE_GPIO, 0x3 }) + + /* Allow device to power off in S0 */ + Name (_S0W, 4) + } +} -- cgit v1.2.3