morthal: Initial EC image

Create the initial Zephyr EC image for the morthal variant by copying
the skyrim reference board EC files.
More changes will be added later.

BUG=none
TEST=zmake build morthal
BRANCH=none

Signed-off-by: Yu-An Chen <yu-an.chen@quanta.corp-partner.google.com>

Change-Id: I358b649c4674003c8531bcef4f7ea8727293141b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3858969
Reviewed-by: Moises Garcia <moisesgarcia@google.com>
Tested-by: Yu-An Chen <yu-an.chen@quanta.corp-partner.google.com>
Auto-Submit: Yu-An Chen <yu-an.chen@quanta.corp-partner.google.com>
Reviewed-by: Diana Z <dzigterman@chromium.org>
Commit-Queue: Yu-An Chen <yu-an.chen@quanta.corp-partner.google.com>

8 files changed, 466 insertions, 0 deletions

diff --git a/zephyr/projects/skyrim/BUILD.py b/zephyr/projects/skyrim/BUILD.py
index 394afcc10d..7a7f209e07 100644
--- a/zephyr/projects/skyrim/BUILD.py
+++ b/zephyr/projects/skyrim/BUILD.py
@@ -32,6 +32,20 @@ def register_skyrim_project(
 
 
 register_skyrim_project(
+    project_name="morthal",
+    extra_dts_overlays=[
+        here / "morthal.dts",
+        here / "battery_morthal.dts",
+        here / "led_pins_morthal.dts",
+        here / "led_policy_morthal.dts",
+    ],
+    extra_kconfig_files=[
+        here / "prj_morthal.conf",
+    ],
+)
+
+
+register_skyrim_project(
     project_name="skyrim",
     extra_dts_overlays=[
         here / "skyrim.dts",
diff --git a/zephyr/projects/skyrim/CMakeLists.txt b/zephyr/projects/skyrim/CMakeLists.txt
index 8b706417e4..24d0138bc9 100644
--- a/zephyr/projects/skyrim/CMakeLists.txt
+++ b/zephyr/projects/skyrim/CMakeLists.txt
@@ -17,6 +17,13 @@ zephyr_library_sources_ifdef(CONFIG_PLATFORM_EC_AMD_STT
 	"stt.c")
 zephyr_library_sources_ifdef(CONFIG_PLATFORM_EC_FAN "fan.c")
 
+if(DEFINED CONFIG_BOARD_MORTHAL)
+	project(morthal)
+	zephyr_library_sources(
+		"usbc_config.c"
+)
+endif()
+
 if(DEFINED CONFIG_BOARD_SKYRIM)
 	project(skyrim)
 	cros_ec_library_include_directories_ifdef(CONFIG_BOARD_SKYRIM include)
diff --git a/zephyr/projects/skyrim/Kconfig b/zephyr/projects/skyrim/Kconfig
index d5612d91d5..36e8b5a659 100644
--- a/zephyr/projects/skyrim/Kconfig
+++ b/zephyr/projects/skyrim/Kconfig
@@ -2,6 +2,12 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+config BOARD_MORTHAL
+	bool "Google Morthal Board"
+	help
+	  Build Google Morthal reference board.  This board uses an AMD SoC
+	  and NPCX9 EC
+
 config BOARD_SKYRIM
 	bool "Google Skyrim Board"
 	help
diff --git a/zephyr/projects/skyrim/battery_morthal.dts b/zephyr/projects/skyrim/battery_morthal.dts
new file mode 100644
index 0000000000..b9fc0d1090
--- /dev/null
+++ b/zephyr/projects/skyrim/battery_morthal.dts
@@ -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.
+ */
+
+/ {
+	batteries {
+		default_battery: aec_5477109 {
+			compatible = "aec,5477109", "battery-smart";
+		};
+		smp_l20m3pg1 {
+			compatible = "smp,l20m3pg1", "battery-smart";
+		};
+	};
+};
diff --git a/zephyr/projects/skyrim/led_pins_morthal.dts b/zephyr/projects/skyrim/led_pins_morthal.dts
new file mode 100644
index 0000000000..1c6bf60375
--- /dev/null
+++ b/zephyr/projects/skyrim/led_pins_morthal.dts
@@ -0,0 +1,63 @@
+/* Copyright 2022 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.
+ */
+
+/ {
+	pwm_pins {
+		compatible = "cros-ec,pwm-pin-config";
+
+		pwm_y: pwm_y {
+			#led-pin-cells = <1>;
+			pwms = <&pwm2 0 PWM_HZ(100) PWM_POLARITY_INVERTED>;
+		};
+
+		pwm_w: pwm_w {
+			#led-pin-cells = <1>;
+			pwms = <&pwm3 0 PWM_HZ(100) PWM_POLARITY_INVERTED>;
+		};
+	};
+
+	pwm-led-pins {
+		compatible = "cros-ec,pwm-led-pins";
+
+		color_off: color-off {
+			led-color = "LED_OFF";
+			led-id = "EC_LED_ID_BATTERY_LED";
+			led-pins = <&pwm_y 0>,
+				   <&pwm_w 0>;
+		};
+
+		color_amber: color-amber {
+			led-color = "LED_AMBER";
+			led-id = "EC_LED_ID_BATTERY_LED";
+			br-color = "EC_LED_COLOR_AMBER";
+			led-pins = <&pwm_y 100>,
+				   <&pwm_w 0>;
+		};
+
+		color_white: color-white {
+			led-color = "LED_WHITE";
+			led-id = "EC_LED_ID_BATTERY_LED";
+			br-color = "EC_LED_COLOR_BLUE";
+			led-pins = <&pwm_y 0>,
+				   <&pwm_w 100>;
+		};
+	};
+};
+
+/* Amber "battery charging" LED */
+&pwm2 {
+	status = "okay";
+	clock-bus = "NPCX_CLOCK_BUS_LFCLK";
+	pinctrl-0 = <&pwm2_gpc4>;
+	pinctrl-names = "default";
+};
+
+/* White "battery full" LED */
+&pwm3 {
+	status = "okay";
+	clock-bus = "NPCX_CLOCK_BUS_LFCLK";
+	pinctrl-0 = <&pwm3_gp80>;
+	pinctrl-names = "default";
+};
diff --git a/zephyr/projects/skyrim/led_policy_morthal.dts b/zephyr/projects/skyrim/led_policy_morthal.dts
new file mode 100644
index 0000000000..a075c6b0d2
--- /dev/null
+++ b/zephyr/projects/skyrim/led_policy_morthal.dts
@@ -0,0 +1,103 @@
+#include <dt-bindings/battery.h>
+
+/ {
+	led-colors {
+		compatible = "cros-ec,led-policy";
+
+		power-state-charge {
+			charge-state = "PWR_STATE_CHARGE";
+
+			color-0 {
+				led-color = <&color_amber>;
+			};
+		};
+
+		power-state-discharge-s0 {
+			charge-state = "PWR_STATE_DISCHARGE";
+			chipset-state = "POWER_S0";
+			/* Battery percent range (> Low, <= Full) */
+			batt-lvl = <(BATTERY_LEVEL_LOW + 1) BATTERY_LEVEL_FULL>;
+
+			color-0 {
+				led-color = <&color_white>;
+			};
+		};
+
+		power-state-discharge-s0-batt-low {
+			charge-state = "PWR_STATE_DISCHARGE";
+			chipset-state = "POWER_S0";
+			/* Battery percent range (>= Empty, <= Low) */
+			batt-lvl = <BATTERY_LEVEL_EMPTY BATTERY_LEVEL_LOW>;
+
+			/* White 2 sec, off 1 sec */
+			color-0 {
+				led-color = <&color_white>;
+				period-ms = <2000>;
+			};
+			color-1 {
+				led-color = <&color_off>;
+				period-ms = <1000>;
+			};
+		};
+
+		power-state-discharge-s3 {
+			charge-state = "PWR_STATE_DISCHARGE";
+			chipset-state = "POWER_S3";
+
+			/* White 1 sec, off 1 sec */
+			color-0 {
+				led-color = <&color_white>;
+				period-ms = <1000>;
+			};
+			color-1 {
+				led-color = <&color_off>;
+				period-ms = <1000>;
+			};
+		};
+
+		power-state-discharge-s5 {
+			charge-state = "PWR_STATE_DISCHARGE";
+			chipset-state = "POWER_S5";
+
+			color-0 {
+				led-color = <&color_off>;
+			};
+		};
+
+		power-state-error {
+			charge-state = "PWR_STATE_ERROR";
+
+			/* Amber 1 sec, off 1 sec */
+			color-0 {
+				led-color = <&color_amber>;
+				period-ms = <1000>;
+			};
+			color-1 {
+				led-color = <&color_off>;
+				period-ms = <1000>;
+			};
+		};
+
+		power-state-near-full {
+			charge-state = "PWR_STATE_CHARGE_NEAR_FULL";
+
+			color-0 {
+				led-color = <&color_white>;
+			};
+		};
+
+		power-state-forced-idle {
+			charge-state = "PWR_STATE_FORCED_IDLE";
+
+			/* Amber 2 sec, White 2 sec */
+			color-0 {
+				led-color = <&color_amber>;
+				period-ms = <2000>;
+			};
+			color-1 {
+				led-color = <&color_white>;
+				period-ms = <2000>;
+			};
+		};
+	};
+};
diff --git a/zephyr/projects/skyrim/morthal.dts b/zephyr/projects/skyrim/morthal.dts
new file mode 100644
index 0000000000..8d4b99a81b
--- /dev/null
+++ b/zephyr/projects/skyrim/morthal.dts
@@ -0,0 +1,235 @@
+/* Copyright 2022 The ChromiumOS Authors.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/ {
+	aliases {
+		gpio-wp = &gpio_wp;
+		gpio-cbi-wp = &gpio_cbi_wp;
+		gpio-kbd-kso2 = &gpio_ec_kso_02_inv;
+	};
+
+	named-gpios {
+		/* Morthal-specific GPIO customizations */
+		gpio_usb_fault_odl: usb_fault_odl {
+			gpios = <&gpio5 0 (GPIO_ODR_HIGH | GPIO_VOLTAGE_1P8)>;
+		};
+		gpio_en_pwr_s3: en_pwr_s3 {
+			gpios = <&gpio7 4 GPIO_OUTPUT_LOW>;
+		};
+		gpio_pg_groupc_s0_od: pg_groupc_s0_od {
+			gpios = <&gpiof 0 GPIO_INPUT>;
+		};
+		gpio_ec_i2c_usbc_pd_int: ec_i2c_usbc_pd_int {
+			gpios = <&gpioa 3 GPIO_INPUT>;
+		};
+		gpio_soc_thermtrip_odl: soc_thermtrip_odl {
+			gpios = <&gpio9 5 GPIO_INPUT>;
+		};
+		gpio_hub_rst: hub_rst {
+			gpios = <&gpio6 6 GPIO_OUTPUT_HIGH>;
+		};
+		ec_soc_int_l {
+			gpios = <&gpioa 1 GPIO_OUTPUT_HIGH>;
+			enum-name = "GPIO_EC_INT_L";
+		};
+		gpio_ec_soc_pwr_good: ec_soc_pwr_good {
+			gpios = <&gpiod 3 GPIO_OUTPUT_LOW>;
+		};
+		/* TODO: Add interrupt handler to shut down */
+		pcore_ocp_r_l {
+			gpios = <&gpioa 5 GPIO_INPUT>;
+		};
+		gpio_usb_hub_fault_q_odl: usb_hub_fault_q_odl {
+			gpios = <&gpioe 5 GPIO_INPUT_PULL_UP>;
+		};
+		gpio_pg_lpddr5_s3_od: pg_lpddr5_s3_od {
+			gpios = <&gpio7 3 GPIO_INPUT>;
+		};
+		3axis_int_l {
+			gpios = <&gpioa 2 GPIO_INPUT_PULL_UP>;
+		};
+		gpio_ec_soc_pwr_btn_l: ec_soc_pwr_btn_l {
+			gpios = <&gpioa 7 GPIO_OUTPUT_HIGH>;
+			enum-name = "GPIO_PCH_PWRBTN_L";
+		};
+		gpio_volup_btn_odl: volup_btn_odl {
+			gpios = <&gpio6 7 GPIO_INPUT_PULL_UP>;
+			enum-name = "GPIO_VOLUME_UP_L";
+		};
+		gpio_voldn_btn_odl: voldn_btn_odl {
+			gpios = <&gpio7 0 GPIO_INPUT_PULL_UP>;
+			enum-name = "GPIO_VOLUME_DOWN_L";
+		};
+		ec_sc_rst {
+			gpios = <&gpiob 0 GPIO_OUTPUT_LOW>;
+		};
+		gpio_cbi_wp: ec_cbi_wp {
+			gpios = <&gpio8 1 GPIO_OUTPUT_LOW>;
+		};
+		gpio_wp: ec_wp_l {
+			gpios = <&gpiod 7 (GPIO_INPUT | GPIO_ACTIVE_LOW)>;
+		};
+		gpio_pg_lpddr5_s0_od: pg_lpddr5_s0_od {
+			gpios = <&gpio6 0 GPIO_INPUT>;
+		};
+		ec_espi_rst_l {
+			gpios = <&gpio5 4 GPIO_PULL_DOWN>;
+		};
+		gpio_accel_gyro_int_l: accel_gyro_int_l {
+			gpios = <&gpioa 0 GPIO_INPUT>;
+		};
+		/* unimplemented GPIOs */
+		entering-rw {
+			enum-name = "GPIO_ENTERING_RW";
+		};
+		pch-sys-prwok {
+			enum-name = "GPIO_PCH_SYS_PWROK";
+		};
+	};
+
+	named-temp-sensors {
+		soc-pct2075 {
+			compatible = "cros-ec,temp-sensor-pct2075",
+				     "cros-ec,temp-sensor";
+			enum-name = "TEMP_SENSOR_SOC";
+			pct2075-name = "PCT2075_SOC";
+			port = <&i2c_sensor>;
+			i2c-addr-flags = "PCT2075_I2C_ADDR_FLAGS0";
+			temp_host_high = <100>;
+			temp_host_halt = <105>;
+			temp_host_release_high = <80>;
+			temp_host_release_halt = <80>;
+			temp_fan_off = <0>;
+			temp_fan_max = <70>;
+			power-good-pin = <&gpio_pg_pwr_s5>;
+		};
+		amb-pct2075 {
+			compatible = "cros-ec,temp-sensor-pct2075",
+				     "cros-ec,temp-sensor";
+			enum-name = "TEMP_SENSOR_AMB";
+			pct2075-name = "PCT2075_AMB";
+			port = <&i2c_sensor>;
+			i2c-addr-flags = "PCT2075_I2C_ADDR_FLAGS7";
+			power-good-pin = <&gpio_pg_pwr_s5>;
+		};
+	};
+
+	gpio-interrupts {
+		compatible = "cros-ec,gpio-interrupts";
+
+		int_pg_lpddr_s3: pg_lpddr_s3 {
+			irq-pin = <&gpio_pg_lpddr5_s3_od>;
+			flags = <GPIO_INT_EDGE_BOTH>;
+			handler = "baseboard_set_en_pwr_pcore";
+		};
+		int_pg_lpddr_s0: pg_lpddr_s0 {
+			irq-pin = <&gpio_pg_lpddr5_s0_od>;
+			flags = <GPIO_INT_EDGE_BOTH>;
+			handler = "baseboard_set_soc_pwr_pgood";
+		};
+		int_s0_pgood: s0_pgood {
+			irq-pin = <&gpio_s0_pgood>;
+			flags = <GPIO_INT_EDGE_BOTH>;
+			handler = "baseboard_s0_pgood";
+		};
+	};
+
+	/*
+	 * Note this is expected to vary per-board, so we keep it in the board
+	 * dts files.
+	 */
+	morthal-fw-config {
+		compatible = "cros-ec,cbi-fw-config";
+
+		form-factor {
+			enum-name = "FW_FORM_FACTOR";
+			start = <0>;
+			size = <1>;
+
+			ff-clamshell {
+				compatible = "cros-ec,cbi-fw-config-value";
+				enum-name = "FW_FF_CLAMSHELL";
+				value = <0>;
+			};
+			ff-convertible {
+				compatible = "cros-ec,cbi-fw-config-value";
+				enum-name = "FW_FF_CONVERTIBLE";
+				value = <1>;
+				default;
+			};
+		};
+		io-db {
+			enum-name = "FW_IO_DB";
+			start = <6>;
+			size = <2>;
+
+			io-db-ps8811-ps8818 {
+				compatible = "cros-ec,cbi-fw-config-value";
+				enum-name = "FW_IO_DB_PS8811_PS8818";
+				value = <0>;
+			};
+			io-db-none-anx7483 {
+				compatible = "cros-ec,cbi-fw-config-value";
+				enum-name = "FW_IO_DB_NONE_ANX7483";
+				value = <1>;
+				default;
+			};
+		};
+
+		/*
+		 * FW_CONFIG field to enable fan or not.
+		 */
+		fan {
+			enum-name = "FW_FAN";
+			start = <10>;
+			size = <1>;
+
+			no-fan {
+				compatible = "cros-ec,cbi-fw-config-value";
+				enum-name = "FW_FAN_NOT_PRESENT";
+				value = <0>;
+			};
+			fan-present {
+				compatible = "cros-ec,cbi-fw-config-value";
+				enum-name = "FW_FAN_PRESENT";
+				value = <1>;
+				/*
+				 * Set as default so that unprovisioned
+				 * configs will run the fan regardless.
+				 */
+				default;
+			};
+		};
+	};
+
+	/* Rotation matrices for motion sensors. */
+	motionsense-rotation-ref {
+		compatible = "cros-ec,motionsense-rotation-ref";
+		lid_rot_ref: lid-rotation-ref {
+			mat33 = <0 (-1) 0
+				 1 0 0
+				 0 0 1>;
+		};
+
+		lid_rot_ref1: lid-rotation-ref1 {
+			mat33 = <0 1 0
+				 (-1) 0 0
+				 0 0 1>;
+		};
+
+		base_rot_ref: base-rotation-ref {
+			mat33 = <0 1 0
+				 (-1) 0 0
+				 0 0 1>;
+		};
+	};
+};
+
+/* host interface */
+&espi0 {
+	status = "okay";
+	pinctrl-0 = <&espi_lpc_gp46_47_51_52_53_54_55_57>;
+	pinctrl-names = "default";
+};
diff --git a/zephyr/projects/skyrim/prj_morthal.conf b/zephyr/projects/skyrim/prj_morthal.conf
new file mode 100644
index 0000000000..28c118ff12
--- /dev/null
+++ b/zephyr/projects/skyrim/prj_morthal.conf
@@ -0,0 +1,23 @@
+# Copyright 2022 The ChromiumOS Authors.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# Morthal reference-board-specific Kconfig settings.
+CONFIG_BOARD_MORTHAL=y
+
+# TODO(b/215404321): Remove later in board development
+CONFIG_PLATFORM_EC_EEPROM_CBI_WP=y
+CONFIG_PLATFORM_EC_SYSTEM_UNLOCKED=y
+
+# LED
+CONFIG_PLATFORM_EC_LED_DT=y
+
+# Morthal is capable of sinking 100W
+CONFIG_PLATFORM_EC_PD_MAX_POWER_MW=100000
+CONFIG_PLATFORM_EC_PD_MAX_CURRENT_MA=5000
+CONFIG_PLATFORM_EC_PD_MAX_VOLTAGE_MV=20000
+
+# Only Morthal has the PCT2075
+CONFIG_PLATFORM_EC_TEMP_SENSOR_PCT2075=y
+
+CONFIG_PLATFORM_EC_USBC_RETIMER_ANX7483=y