zephyr: Initial port for Guybrush

BUG=b:195137794
BRANCH=none
TEST=uart works

Change-Id: Ib7e177cfd501f78afb6edf943f078466dca455a6
Signed-off-by: Jack Rosenthal <jrosenth@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3168392
Reviewed-by: Diana Z <dzigterman@chromium.org>

5 files changed, 94 insertions, 0 deletions

diff --git a/zephyr/projects/guybrush/CMakeLists.txt b/zephyr/projects/guybrush/CMakeLists.txt
new file mode 100644
index 0000000000..8bec336ebb
--- /dev/null
+++ b/zephyr/projects/guybrush/CMakeLists.txt
@@ -0,0 +1,15 @@
+# Copyright 2021 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+cmake_minimum_required(VERSION 3.13.1)
+
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+project(guybrush)
+
+zephyr_library_include_directories(include)
+
+set(PLATFORM_EC_BASEBOARD "${PLATFORM_EC}/baseboard/guybrush" CACHE PATH
+  "Path to the platform/ec baseboard directory")
+set(PLATFORM_EC_BOARD "${PLATFORM_EC}/board/guybrush" CACHE PATH
+  "Path to the platform/ec board directory")
diff --git a/zephyr/projects/guybrush/gpio.dts b/zephyr/projects/guybrush/gpio.dts
new file mode 100644
index 0000000000..9bec5c6d30
--- /dev/null
+++ b/zephyr/projects/guybrush/gpio.dts
@@ -0,0 +1,4 @@
+/ {
+	named-gpios {
+	};
+};
diff --git a/zephyr/projects/guybrush/include/gpio_map.h b/zephyr/projects/guybrush/include/gpio_map.h
new file mode 100644
index 0000000000..8a9ab06286
--- /dev/null
+++ b/zephyr/projects/guybrush/include/gpio_map.h
@@ -0,0 +1,32 @@
+/* Copyright 2021 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef __ZEPHYR_GPIO_MAP_H
+#define __ZEPHYR_GPIO_MAP_H
+
+#include <devicetree.h>
+#include <gpio_signal.h>
+
+#define GPIO_WP_L GPIO_UNIMPLEMENTED
+#define GPIO_ENTERING_RW GPIO_UNIMPLEMENTED
+
+/*
+ * Set EC_CROS_GPIO_INTERRUPTS to a space-separated list of GPIO_INT items.
+ *
+ * Each GPIO_INT requires three parameters:
+ *   gpio_signal - The enum gpio_signal for the interrupt gpio
+ *   interrupt_flags - The interrupt-related flags (e.g. GPIO_INT_EDGE_BOTH)
+ *   handler - The platform/ec interrupt handler.
+ *
+ * Ensure that this files includes all necessary headers to declare all
+ * referenced handler functions.
+ *
+ * For example, one could use the follow definition:
+ * #define EC_CROS_GPIO_INTERRUPTS \
+ *   GPIO_INT(NAMED_GPIO(h1_ec_pwr_btn_odl), GPIO_INT_EDGE_BOTH, button_print)
+ */
+#define EC_CROS_GPIO_INTERRUPTS
+
+#endif /* __ZEPHYR_GPIO_MAP_H */
diff --git a/zephyr/projects/guybrush/prj.conf b/zephyr/projects/guybrush/prj.conf
new file mode 100644
index 0000000000..85f93189b1
--- /dev/null
+++ b/zephyr/projects/guybrush/prj.conf
@@ -0,0 +1,30 @@
+# Copyright 2021 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+CONFIG_CROS_EC=y
+CONFIG_PLATFORM_EC=y
+CONFIG_SHIMMED_TASKS=y
+
+CONFIG_PLATFORM_EC_VBOOT_EFS2=n
+
+# Power sequencing
+CONFIG_AP=n
+
+# Power button
+CONFIG_PLATFORM_EC_POWER_BUTTON=n
+CONFIG_HAS_TASK_POWERBTN=n
+
+# External power
+CONFIG_PLATFORM_EC_EXTPOWER_GPIO=n
+
+# Lid switch
+CONFIG_PLATFORM_EC_LID_SWITCH=n
+
+CONFIG_PLATFORM_EC_KEYBOARD=n
+CONFIG_CROS_KB_RAW_NPCX=n
+
+# This is not yet supported
+CONFIG_PLATFORM_EC_ADC=n
+CONFIG_PLATFORM_EC_BOARD_VERSION_CBI=n
+CONFIG_PLATFORM_EC_BOARD_VERSION_GPIO=n
diff --git a/zephyr/projects/guybrush/zmake.yaml b/zephyr/projects/guybrush/zmake.yaml
new file mode 100644
index 0000000000..386ff315bf
--- /dev/null
+++ b/zephyr/projects/guybrush/zmake.yaml
@@ -0,0 +1,13 @@
+# Copyright 2021 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+board: npcx9
+dts-overlays:
+  - gpio.dts
+supported-toolchains:
+  - coreboot-sdk
+  - zephyr
+supported-zephyr-versions:
+  - v2.6
+output-type: npcx