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authorMatt DeVillier <matt.devillier@gmail.com>2017-08-21 00:29:47 -0500
committerMartin Roth <martinroth@google.com>2017-09-16 22:32:33 +0000
commit602d0a42d4bbc8d862e3722b72e59458e7a97999 (patch)
tree848f8352a4d26bcdfdf7bd061bc5e2185364373a /src/mainboard/google/cyan/acpi
parent4f20a4ae47492fc86293f1c6aed063177992fbaf (diff)
downloadcoreboot-602d0a42d4bbc8d862e3722b72e59458e7a97999.tar.xz
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 <matt.devillier@gmail.com> Reviewed-on: https://review.coreboot.org/21128 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src/mainboard/google/cyan/acpi')
-rw-r--r--src/mainboard/google/cyan/acpi/touchscreen_melfas.asl60
1 files changed, 60 insertions, 0 deletions
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)
+ }
+}