mb/google/kahlee/nuwani: Create Nuwani variant

This commit creates a nuwani variant for Grunt. The initial settings
override the baseboard was copied from variant treeya.

BUG=b:144890301
TEST=emerge-grunt coreboot

Signed-off-by: Peichao Wang <peichao.wang@bitland.corp-partner.google.com>
Change-Id: Id3a7fc890340e5a88ebc4b516dc2c0b085654999
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39316
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Mathew King <mathewk@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 25 insertions, 0 deletions

diff --git a/src/mainboard/google/kahlee/variants/nuwani/include/variant/ec.h b/src/mainboard/google/kahlee/variants/nuwani/include/variant/ec.h
new file mode 100644
index 0000000000..4a63722e9e
--- /dev/null
+++ b/src/mainboard/google/kahlee/variants/nuwani/include/variant/ec.h
@@ -0,0 +1,25 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2020 Google Inc.
+ *
+ * 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.
+ */
+
+#include <baseboard/ec.h>
+
+/* Enable Tablet switch */
+#define EC_ENABLE_TBMC_DEVICE
+
+/*
+ * Enable EC sync interrupt via GPIO controller, EC_SYNC_IRQ is defined in
+ * variant/gpio.h
+ */
+#define EC_ENABLE_SYNC_IRQ_GPIO