lantis: Initial EC image

Create the initial EC image for the lantis variant by copying the
drawcia reference board EC files into a new directory named for
the variant.

(Auto-Generated by create_initial_ec_image.sh version 1.2.0).

BUG=b:171546871
BRANCH=none
TEST=make BOARD=lantis

Signed-off-by: Tony Huang <tony-huang@quanta.corp-partner.google.com>
Change-Id: I01eeb9dda6110f72aba4b253ac2ecca57f12bdd5
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2534437
Tested-by: Devin Lu <Devin.Lu@quantatw.com>
Reviewed-by: Henry Sun <henrysun@google.com>
Commit-Queue: Henry Sun <henrysun@google.com>

8 files changed, 1586 insertions, 0 deletions

diff --git a/board/lantis/battery.c b/board/lantis/battery.c
new file mode 100644
index 0000000000..3052f93dcc
--- /dev/null
+++ b/board/lantis/battery.c
@@ -0,0 +1,269 @@
+/* Copyright 2020 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.
+ *
+ * Battery pack vendor provided charging profile
+ */
+
+#include "battery_fuel_gauge.h"
+#include "charge_state.h"
+#include "common.h"
+
+/*
+ * Battery info for all drawcia battery types. Note that the fields
+ * start_charging_min/max and charging_min/max are not used for the charger.
+ * The effective temperature limits are given by discharging_min/max_c.
+ *
+ * Fuel Gauge (FG) parameters which are used for determining if the battery
+ * is connected, the appropriate ship mode (battery cutoff) command, and the
+ * charge/discharge FETs status.
+ *
+ * Ship mode (battery cutoff) requires 2 writes to the appropriate smart battery
+ * register. For some batteries, the charge/discharge FET bits are set when
+ * charging/discharging is active, in other types, these bits set mean that
+ * charging/discharging is disabled. Therefore, in addition to the mask for
+ * these bits, a disconnect value must be specified. Note that for TI fuel
+ * gauge, the charge/discharge FET status is found in Operation Status (0x54),
+ * but a read of Manufacturer Access (0x00) will return the lower 16 bits of
+ * Operation status which contains the FET status bits.
+ *
+ * The assumption for battery types supported is that the charge/discharge FET
+ * status can be read with a sb_read() command and therefore, only the register
+ * address, mask, and disconnect value need to be provided.
+ */
+const struct board_batt_params board_battery_info[] = {
+	/* DynaPack CosMX Battery Information */
+	[BATTERY_DANAPACK_COS] = {
+		.fuel_gauge = {
+			.manuf_name = "333-2C-DA-A",
+			.ship_mode = {
+				.reg_addr = 0x00,
+				.reg_data = { 0x0010, 0x0010 },
+			},
+			.fet = {
+				.mfgacc_support = 1,
+				.reg_addr = 0x0,
+				.reg_mask = 0x0006,
+				.disconnect_val = 0x0,
+			},
+		},
+		.batt_info = {
+			.voltage_max = 8800,	/* mV */
+			.voltage_normal = 7700,
+			.voltage_min = 6000,
+			.precharge_current = 256,	/* mA */
+			.start_charging_min_c = 0,
+			.start_charging_max_c = 45,
+			.charging_min_c = 0,
+			.charging_max_c = 45,
+			.discharging_min_c = -10,
+			.discharging_max_c = 60,
+		},
+	},
+
+	/* DynaPack ATL Battery Information */
+	[BATTERY_DANAPACK_ATL] = {
+		.fuel_gauge = {
+			.manuf_name = "333-27-DA-A",
+			.ship_mode = {
+				.reg_addr = 0x00,
+				.reg_data = { 0x0010, 0x0010 },
+			},
+			.fet = {
+				.mfgacc_support = 1,
+				.reg_addr = 0x0,
+				.reg_mask = 0x0006,
+				.disconnect_val = 0x0,
+			},
+		},
+		.batt_info = {
+			.voltage_max = 8800,	/* mV */
+			.voltage_normal = 7700,
+			.voltage_min = 6000,
+			.precharge_current = 256,	/* mA */
+			.start_charging_min_c = 0,
+			.start_charging_max_c = 45,
+			.charging_min_c = 0,
+			.charging_max_c = 45,
+			.discharging_min_c = -10,
+			.discharging_max_c = 60,
+		},
+	},
+
+	/* DynaPack HIGHPOWER Battery Information */
+	[BATTERY_DANAPACK_HIGHPOWER] = {
+		.fuel_gauge = {
+			.manuf_name = "333-2D-0D-A",
+			.ship_mode = {
+				.reg_addr = 0x00,
+				.reg_data = { 0x0010, 0x0010 },
+			},
+			.fet = {
+				.mfgacc_support = 1,
+				.reg_addr = 0x0,
+				.reg_mask = 0x0006,
+				.disconnect_val = 0x0,
+			},
+		},
+		.batt_info = {
+			.voltage_max = 8800,	/* mV */
+			.voltage_normal = 7700,
+			.voltage_min = 6000,
+			.precharge_current = 256,	/* mA */
+			.start_charging_min_c = 0,
+			.start_charging_max_c = 45,
+			.charging_min_c = 0,
+			.charging_max_c = 45,
+			.discharging_min_c = -10,
+			.discharging_max_c = 60,
+		},
+	},
+
+	/* DynaPack BYD Battery Information */
+	[BATTERY_DANAPACK_BYD] = {
+		.fuel_gauge = {
+			.manuf_name = "333-2E-0D-A",
+			.ship_mode = {
+				.reg_addr = 0x00,
+				.reg_data = { 0x0010, 0x0010 },
+			},
+			.fet = {
+				.mfgacc_support = 1,
+				.reg_addr = 0x0,
+				.reg_mask = 0x0006,
+				.disconnect_val = 0x0,
+			},
+		},
+		.batt_info = {
+			.voltage_max = 8800,	/* mV */
+			.voltage_normal = 7700,
+			.voltage_min = 6000,
+			.precharge_current = 256,	/* mA */
+			.start_charging_min_c = 0,
+			.start_charging_max_c = 45,
+			.charging_min_c = 0,
+			.charging_max_c = 45,
+			.discharging_min_c = -10,
+			.discharging_max_c = 60,
+		},
+	},
+
+	/* Samsung SDI Battery Information */
+	[BATTERY_SAMSUNG_SDI] = {
+		.fuel_gauge = {
+			.manuf_name = "333-54-DA-A",
+			.ship_mode = {
+				.reg_addr = 0x00,
+				.reg_data = { 0x0010, 0x0010 },
+			},
+			.fet = {
+				.mfgacc_support = 1,
+				.reg_addr = 0x0,
+				.reg_mask = 0x0006,
+				.disconnect_val = 0x0,
+			},
+		},
+		.batt_info = {
+			.voltage_max = 8800,	/* mV */
+			.voltage_normal = 7700,
+			.voltage_min = 6000,
+			.precharge_current = 256,	/* mA */
+			.start_charging_min_c = 0,
+			.start_charging_max_c = 45,
+			.charging_min_c = 0,
+			.charging_max_c = 45,
+			.discharging_min_c = -10,
+			.discharging_max_c = 60,
+		},
+	},
+
+	/* Simplo CosMX Battery Information */
+	[BATTERY_SIMPLO_COS] = {
+		.fuel_gauge = {
+			.manuf_name = "333-1C-DA-A",
+			.ship_mode = {
+				.reg_addr = 0x00,
+				.reg_data = { 0x0010, 0x0010 },
+			},
+			.fet = {
+				.mfgacc_support = 1,
+				.reg_addr = 0x0,
+				.reg_mask = 0x0006,
+				.disconnect_val = 0x0,
+			},
+		},
+		.batt_info = {
+			.voltage_max = 8800,	/* mV */
+			.voltage_normal = 7700,
+			.voltage_min = 6000,
+			.precharge_current = 256,	/* mA */
+			.start_charging_min_c = 0,
+			.start_charging_max_c = 45,
+			.charging_min_c = 0,
+			.charging_max_c = 45,
+			.discharging_min_c = -10,
+			.discharging_max_c = 60,
+		},
+	},
+
+	/* Simplo HIGHPOWER Battery Information */
+	[BATTERY_SIMPLO_HIGHPOWER] = {
+		.fuel_gauge = {
+			.manuf_name = "333-1D-DA-A",
+			.ship_mode = {
+				.reg_addr = 0x00,
+				.reg_data = { 0x0010, 0x0010 },
+			},
+			.fet = {
+				.mfgacc_support = 1,
+				.reg_addr = 0x0,
+				.reg_mask = 0x0006,
+				.disconnect_val = 0x0,
+			},
+		},
+		.batt_info = {
+			.voltage_max = 8800,	/* mV */
+			.voltage_normal = 7700,
+			.voltage_min = 6000,
+			.precharge_current = 256,	/* mA */
+			.start_charging_min_c = 0,
+			.start_charging_max_c = 45,
+			.charging_min_c = 0,
+			.charging_max_c = 45,
+			.discharging_min_c = -10,
+			.discharging_max_c = 60,
+		},
+	},
+
+	/* CosMX Battery Information */
+	[BATTERY_COS] = {
+		.fuel_gauge = {
+			.manuf_name = "333-AC-0D-A",
+			.ship_mode = {
+				.reg_addr = 0x00,
+				.reg_data = { 0x0010, 0x0010 },
+			},
+			.fet = {
+				.mfgacc_support = 1,
+				.reg_addr = 0x0,
+				.reg_mask = 0x0006,
+				.disconnect_val = 0x0,
+			},
+		},
+		.batt_info = {
+			.voltage_max = 8800,	/* mV */
+			.voltage_normal = 7700,
+			.voltage_min = 6000,
+			.precharge_current = 256,	/* mA */
+			.start_charging_min_c = 0,
+			.start_charging_max_c = 45,
+			.charging_min_c = 0,
+			.charging_max_c = 45,
+			.discharging_min_c = -10,
+			.discharging_max_c = 60,
+		},
+	},
+};
+BUILD_ASSERT(ARRAY_SIZE(board_battery_info) == BATTERY_TYPE_COUNT);
+
+const enum battery_type DEFAULT_BATTERY_TYPE = BATTERY_DANAPACK_COS;
diff --git a/board/lantis/board.c b/board/lantis/board.c
new file mode 100644
index 0000000000..7f96bdaef3
--- /dev/null
+++ b/board/lantis/board.c
@@ -0,0 +1,675 @@
+/* Copyright 2020 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.
+ */
+
+/* Drawcia board-specific configuration */
+
+#include "adc_chip.h"
+#include "button.h"
+#include "cbi_fw_config.h"
+#include "charge_manager.h"
+#include "charge_state_v2.h"
+#include "charger.h"
+#include "cros_board_info.h"
+#include "driver/accel_bma2x2.h"
+#include "driver/accelgyro_lsm6dsm.h"
+#include "driver/bc12/pi3usb9201.h"
+#include "driver/charger/sm5803.h"
+#include "driver/temp_sensor/thermistor.h"
+#include "driver/tcpm/it83xx_pd.h"
+#include "driver/tcpm/ps8xxx.h"
+#include "driver/usb_mux/it5205.h"
+#include "gpio.h"
+#include "hooks.h"
+#include "intc.h"
+#include "keyboard_scan.h"
+#include "lid_switch.h"
+#include "power.h"
+#include "power_button.h"
+#include "pwm.h"
+#include "pwm_chip.h"
+#include "switch.h"
+#include "system.h"
+#include "tablet_mode.h"
+#include "task.h"
+#include "tcpci.h"
+#include "temp_sensor.h"
+#include "uart.h"
+#include "usb_charge.h"
+#include "usb_mux.h"
+#include "usb_pd.h"
+#include "usb_pd_tcpm.h"
+
+#define CPRINTUSB(format, args...) cprints(CC_USBCHARGE, format, ## args)
+
+#define INT_RECHECK_US 5000
+
+uint32_t board_version;
+
+/* GPIO to enable/disable the USB Type-A port. */
+const int usb_port_enable[USB_PORT_COUNT] = {
+	GPIO_EN_USB_A_5V,
+};
+
+/* C0 interrupt line shared by BC 1.2 and charger */
+static void check_c0_line(void);
+DECLARE_DEFERRED(check_c0_line);
+
+static void notify_c0_chips(void)
+{
+	task_set_event(TASK_ID_USB_CHG_P0, USB_CHG_EVENT_BC12, 0);
+	sm5803_interrupt(0);
+}
+
+static void check_c0_line(void)
+{
+	/*
+	 * If line is still being held low, see if there's more to process from
+	 * one of the chips
+	 */
+	if (!gpio_get_level(GPIO_USB_C0_INT_ODL)) {
+		notify_c0_chips();
+		hook_call_deferred(&check_c0_line_data, INT_RECHECK_US);
+	}
+}
+
+static void usb_c0_interrupt(enum gpio_signal s)
+{
+	/* Cancel any previous calls to check the interrupt line */
+	hook_call_deferred(&check_c0_line_data, -1);
+
+	/* Notify all chips using this line that an interrupt came in */
+	notify_c0_chips();
+
+	/* Check the line again in 5ms */
+	hook_call_deferred(&check_c0_line_data, INT_RECHECK_US);
+}
+
+/* C1 interrupt line shared by BC 1.2, TCPC, and charger */
+static void check_c1_line(void);
+DECLARE_DEFERRED(check_c1_line);
+
+static void notify_c1_chips(void)
+{
+	schedule_deferred_pd_interrupt(1);
+	task_set_event(TASK_ID_USB_CHG_P1, USB_CHG_EVENT_BC12, 0);
+	sm5803_interrupt(1);
+}
+
+static void check_c1_line(void)
+{
+	/*
+	 * If line is still being held low, see if there's more to process from
+	 * one of the chips.
+	 */
+	if (!gpio_get_level(GPIO_USB_C1_INT_ODL)) {
+		notify_c1_chips();
+		hook_call_deferred(&check_c1_line_data, INT_RECHECK_US);
+	}
+}
+
+static void usb_c1_interrupt(enum gpio_signal s)
+{
+	/* Cancel any previous calls to check the interrupt line */
+	hook_call_deferred(&check_c1_line_data, -1);
+
+	/* Notify all chips using this line that an interrupt came in */
+	notify_c1_chips();
+
+	/* Check the line again in 5ms */
+	hook_call_deferred(&check_c1_line_data, INT_RECHECK_US);
+}
+
+static void button_sub_hdmi_hpd_interrupt(enum gpio_signal s)
+{
+	int hdmi_hpd = gpio_get_level(GPIO_VOLUP_BTN_ODL_HDMI_HPD);
+
+	if (get_cbi_fw_config_db() == DB_1A_HDMI)
+		gpio_set_level(GPIO_EC_AP_USB_C1_HDMI_HPD, hdmi_hpd);
+	else
+		button_interrupt(s);
+}
+
+static void c0_ccsbu_ovp_interrupt(enum gpio_signal s)
+{
+	cprints(CC_USBPD, "C0: CC OVP, SBU OVP, or thermal event");
+	pd_handle_cc_overvoltage(0);
+}
+
+static void pen_detect_interrupt(enum gpio_signal s)
+{
+	int pen_detect = !gpio_get_level(GPIO_PEN_DET_ODL);
+
+	gpio_set_level(GPIO_EN_PP5000_PEN, pen_detect);
+}
+
+/* Must come after other header files and interrupt handler declarations */
+#include "gpio_list.h"
+
+/* ADC channels */
+const struct adc_t adc_channels[] = {
+	[ADC_VSNS_PP3300_A] = {
+		.name = "PP3300_A_PGOOD",
+		.factor_mul = ADC_MAX_MVOLT,
+		.factor_div = ADC_READ_MAX + 1,
+		.shift = 0,
+		.channel = CHIP_ADC_CH0
+	},
+	[ADC_TEMP_SENSOR_1] = {
+		.name = "TEMP_SENSOR1",
+		.factor_mul = ADC_MAX_MVOLT,
+		.factor_div = ADC_READ_MAX + 1,
+		.shift = 0,
+		.channel = CHIP_ADC_CH2
+	},
+	[ADC_TEMP_SENSOR_2] = {
+		.name = "TEMP_SENSOR2",
+		.factor_mul = ADC_MAX_MVOLT,
+		.factor_div = ADC_READ_MAX + 1,
+		.shift = 0,
+		.channel = CHIP_ADC_CH3
+	},
+	[ADC_SUB_ANALOG] = {
+		.name = "SUB_ANALOG",
+		.factor_mul = ADC_MAX_MVOLT,
+		.factor_div = ADC_READ_MAX + 1,
+		.shift = 0,
+		.channel = CHIP_ADC_CH13
+	},
+	[ADC_TEMP_SENSOR_3] = {
+		.name = "TEMP_SENSOR3",
+		.factor_mul = ADC_MAX_MVOLT,
+		.factor_div = ADC_READ_MAX + 1,
+		.shift = 0,
+		.channel = CHIP_ADC_CH15
+	},
+	[ADC_TEMP_SENSOR_4] = {
+		.name = "TEMP_SENSOR4",
+		.factor_mul = ADC_MAX_MVOLT,
+		.factor_div = ADC_READ_MAX + 1,
+		.shift = 0,
+		.channel = CHIP_ADC_CH16
+	},
+};
+BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
+
+/* BC 1.2 chips */
+const struct pi3usb9201_config_t pi3usb9201_bc12_chips[] = {
+	{
+		.i2c_port = I2C_PORT_USB_C0,
+		.i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS,
+		.flags = PI3USB9201_ALWAYS_POWERED,
+	},
+	{
+		.i2c_port = I2C_PORT_SUB_USB_C1,
+		.i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS,
+		.flags = PI3USB9201_ALWAYS_POWERED,
+	},
+};
+
+/* Charger chips */
+const struct charger_config_t chg_chips[] = {
+	[CHARGER_PRIMARY] = {
+		.i2c_port = I2C_PORT_USB_C0,
+		.i2c_addr_flags = SM5803_ADDR_CHARGER_FLAGS,
+		.drv = &sm5803_drv,
+	},
+	[CHARGER_SECONDARY] = {
+		.i2c_port = I2C_PORT_SUB_USB_C1,
+		.i2c_addr_flags = SM5803_ADDR_CHARGER_FLAGS,
+		.drv = &sm5803_drv,
+	},
+};
+
+/* TCPCs */
+const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_MAX_COUNT] = {
+	{
+		.bus_type = EC_BUS_TYPE_EMBEDDED,
+		.drv = &it83xx_tcpm_drv,
+	},
+	{
+		.bus_type = EC_BUS_TYPE_I2C,
+		.i2c_info = {
+			.port = I2C_PORT_SUB_USB_C1,
+			.addr_flags = PS8751_I2C_ADDR1_FLAGS,
+		},
+		.drv = &ps8xxx_tcpm_drv,
+	},
+};
+
+/* USB Muxes */
+const struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT] = {
+	{
+		.usb_port = 0,
+		.i2c_port = I2C_PORT_USB_C0,
+		.i2c_addr_flags = IT5205_I2C_ADDR1_FLAGS,
+		.driver = &it5205_usb_mux_driver,
+	},
+	{
+		.usb_port = 1,
+		.i2c_port = I2C_PORT_SUB_USB_C1,
+		.i2c_addr_flags = PS8751_I2C_ADDR1_FLAGS,
+		.driver = &tcpci_tcpm_usb_mux_driver,
+		.hpd_update = &ps8xxx_tcpc_update_hpd_status,
+	},
+};
+
+/* Sensor Mutexes */
+static struct mutex g_lid_mutex;
+static struct mutex g_base_mutex;
+
+/* Sensor Data */
+static struct accelgyro_saved_data_t g_bma253_data;
+static struct lsm6dsm_data lsm6dsm_data = LSM6DSM_DATA;
+
+/* Matrix to rotate accelrator into standard reference frame */
+static const mat33_fp_t base_standard_ref = {
+	{ FLOAT_TO_FP(1), 0, 0},
+	{ 0, FLOAT_TO_FP(-1), 0},
+	{ 0, 0, FLOAT_TO_FP(-1)}
+};
+
+static const mat33_fp_t lid_standard_ref = {
+	{ FLOAT_TO_FP(1), 0, 0},
+	{ 0, FLOAT_TO_FP(-1), 0},
+	{ 0, 0, FLOAT_TO_FP(-1)}
+};
+
+/* Drivers */
+struct motion_sensor_t motion_sensors[] = {
+	[LID_ACCEL] = {
+		.name = "Lid Accel",
+		.active_mask = SENSOR_ACTIVE_S0_S3,
+		.chip = MOTIONSENSE_CHIP_BMA255,
+		.type = MOTIONSENSE_TYPE_ACCEL,
+		.location = MOTIONSENSE_LOC_LID,
+		.drv = &bma2x2_accel_drv,
+		.mutex = &g_lid_mutex,
+		.drv_data = &g_bma253_data,
+		.port = I2C_PORT_SENSOR,
+		.i2c_spi_addr_flags = BMA2x2_I2C_ADDR1_FLAGS,
+		.rot_standard_ref = &lid_standard_ref,
+		.default_range = 2,
+		.min_frequency = BMA255_ACCEL_MIN_FREQ,
+		.max_frequency = BMA255_ACCEL_MAX_FREQ,
+		.config = {
+			[SENSOR_CONFIG_EC_S0] = {
+				.odr = 10000 | ROUND_UP_FLAG,
+			},
+			[SENSOR_CONFIG_EC_S3] = {
+				.odr = 10000 | ROUND_UP_FLAG,
+			},
+		},
+	},
+	[BASE_ACCEL] = {
+		.name = "Base Accel",
+		.active_mask = SENSOR_ACTIVE_S0_S3,
+		.chip = MOTIONSENSE_CHIP_LSM6DSM,
+		.type = MOTIONSENSE_TYPE_ACCEL,
+		.location = MOTIONSENSE_LOC_BASE,
+		.drv = &lsm6dsm_drv,
+		.mutex = &g_base_mutex,
+		.drv_data = LSM6DSM_ST_DATA(lsm6dsm_data,
+				MOTIONSENSE_TYPE_ACCEL),
+		.int_signal = GPIO_BASE_SIXAXIS_INT_L,
+		.flags = MOTIONSENSE_FLAG_INT_SIGNAL,
+		.port = I2C_PORT_SENSOR,
+		.i2c_spi_addr_flags = LSM6DSM_ADDR0_FLAGS,
+		.rot_standard_ref = &base_standard_ref,
+		.default_range = 4,  /* g */
+		.min_frequency = LSM6DSM_ODR_MIN_VAL,
+		.max_frequency = LSM6DSM_ODR_MAX_VAL,
+		.config = {
+			[SENSOR_CONFIG_EC_S0] = {
+				.odr = 13000 | ROUND_UP_FLAG,
+				.ec_rate = 100 * MSEC,
+			},
+			[SENSOR_CONFIG_EC_S3] = {
+				.odr = 10000 | ROUND_UP_FLAG,
+				.ec_rate = 100 * MSEC,
+			},
+		},
+	},
+	[BASE_GYRO] = {
+		.name = "Base Gyro",
+		.active_mask = SENSOR_ACTIVE_S0_S3,
+		.chip = MOTIONSENSE_CHIP_LSM6DSM,
+		.type = MOTIONSENSE_TYPE_GYRO,
+		.location = MOTIONSENSE_LOC_BASE,
+		.drv = &lsm6dsm_drv,
+		.mutex = &g_base_mutex,
+		.drv_data = LSM6DSM_ST_DATA(lsm6dsm_data,
+				MOTIONSENSE_TYPE_GYRO),
+		.int_signal = GPIO_BASE_SIXAXIS_INT_L,
+		.flags = MOTIONSENSE_FLAG_INT_SIGNAL,
+		.port = I2C_PORT_SENSOR,
+		.i2c_spi_addr_flags = LSM6DSM_ADDR0_FLAGS,
+		.default_range = 1000 | ROUND_UP_FLAG, /* dps */
+		.rot_standard_ref = NULL,
+		.min_frequency = LSM6DSM_ODR_MIN_VAL,
+		.max_frequency = LSM6DSM_ODR_MAX_VAL,
+	},
+};
+
+unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);
+
+void board_init(void)
+{
+	int on;
+
+	if (get_cbi_fw_config_db() == DB_1A_HDMI) {
+		/* Select HDMI option */
+		gpio_set_level(GPIO_HDMI_SEL_L, 0);
+	} else {
+		/* Select AUX option */
+		gpio_set_level(GPIO_HDMI_SEL_L, 1);
+	}
+
+	gpio_enable_interrupt(GPIO_USB_C0_INT_ODL);
+	gpio_enable_interrupt(GPIO_USB_C1_INT_ODL);
+
+	/* Store board version for use in determining charge limits */
+	cbi_get_board_version(&board_version);
+
+	/*
+	 * If interrupt lines are already low, schedule them to be processed
+	 * after inits are completed.
+	 */
+	if (!gpio_get_level(GPIO_USB_C0_INT_ODL))
+		hook_call_deferred(&check_c0_line_data, 0);
+	if (!gpio_get_level(GPIO_USB_C1_INT_ODL))
+		hook_call_deferred(&check_c1_line_data, 0);
+
+	gpio_enable_interrupt(GPIO_USB_C0_CCSBU_OVP_ODL);
+
+	if (get_cbi_fw_config_tablet_mode() == TABLET_MODE_PRESENT) {
+		motion_sensor_count = ARRAY_SIZE(motion_sensors);
+		/* Enable Base Accel interrupt */
+		gpio_enable_interrupt(GPIO_BASE_SIXAXIS_INT_L);
+	} else {
+		motion_sensor_count = 0;
+		gmr_tablet_switch_disable();
+		/* Base accel is not stuffed, don't allow line to float */
+		gpio_set_flags(GPIO_BASE_SIXAXIS_INT_L,
+			       GPIO_INPUT | GPIO_PULL_DOWN);
+	}
+
+	gpio_enable_interrupt(GPIO_PEN_DET_ODL);
+
+	/* Charger on the MB will be outputting PROCHOT_ODL and OD CHG_DET */
+	sm5803_configure_gpio0(CHARGER_PRIMARY, GPIO0_MODE_PROCHOT, 1);
+	sm5803_configure_chg_det_od(CHARGER_PRIMARY, 1);
+
+	if (board_get_charger_chip_count() > 1) {
+		/* Charger on the sub-board will be a push-pull GPIO */
+		sm5803_configure_gpio0(CHARGER_SECONDARY, GPIO0_MODE_OUTPUT, 0);
+	}
+
+	/* Turn on 5V if the system is on, otherwise turn it off */
+	on = chipset_in_state(CHIPSET_STATE_ON | CHIPSET_STATE_ANY_SUSPEND |
+			      CHIPSET_STATE_SOFT_OFF);
+	board_power_5v_enable(on);
+}
+DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
+
+static void board_resume(void)
+{
+	sm5803_disable_low_power_mode(CHARGER_PRIMARY);
+	if (board_get_charger_chip_count() > 1)
+		sm5803_disable_low_power_mode(CHARGER_SECONDARY);
+}
+DECLARE_HOOK(HOOK_CHIPSET_RESUME, board_resume, HOOK_PRIO_DEFAULT);
+
+static void board_suspend(void)
+{
+	sm5803_enable_low_power_mode(CHARGER_PRIMARY);
+	if (board_get_charger_chip_count() > 1)
+		sm5803_enable_low_power_mode(CHARGER_SECONDARY);
+}
+DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_suspend, HOOK_PRIO_DEFAULT);
+
+void board_hibernate(void)
+{
+	/*
+	 * Put all charger ICs present into low power mode before entering
+	 * z-state.
+	 */
+	sm5803_hibernate(CHARGER_PRIMARY);
+	if (board_get_charger_chip_count() > 1)
+		sm5803_hibernate(CHARGER_SECONDARY);
+}
+
+__override void board_ocpc_init(struct ocpc_data *ocpc)
+{
+	/* There's no provision to measure Isys */
+	ocpc->chg_flags[CHARGER_SECONDARY] |= OCPC_NO_ISYS_MEAS_CAP;
+}
+
+void board_reset_pd_mcu(void)
+{
+	/*
+	 * Nothing to do.  TCPC C0 is internal, TCPC C1 reset pin is not
+	 * connected to the EC.
+	 */
+}
+
+__override void board_power_5v_enable(int enable)
+{
+	/*
+	 * Motherboard has a GPIO to turn on the 5V regulator, but the sub-board
+	 * sets it through the charger GPIO.
+	 */
+	gpio_set_level(GPIO_EN_PP5000, !!enable);
+
+	if (board_get_charger_chip_count() > 1) {
+		if (sm5803_set_gpio0_level(1, !!enable))
+			CPRINTUSB("Failed to %sable sub rails!", enable ?
+								  "en" : "dis");
+	}
+}
+
+__override uint8_t board_get_usb_pd_port_count(void)
+{
+	if (get_cbi_fw_config_db() == DB_1A_HDMI)
+		return CONFIG_USB_PD_PORT_MAX_COUNT - 1;
+	else
+		return CONFIG_USB_PD_PORT_MAX_COUNT;
+}
+
+__override uint8_t board_get_charger_chip_count(void)
+{
+	if (get_cbi_fw_config_db() == DB_1A_HDMI)
+		return CHARGER_NUM - 1;
+	else
+		return CHARGER_NUM;
+}
+
+uint16_t tcpc_get_alert_status(void)
+{
+	/*
+	 * TCPC 0 is embedded in the EC and processes interrupts in the chip
+	 * code (it83xx/intc.c)
+	 */
+
+	uint16_t status = 0;
+	int regval;
+
+	/* Check whether TCPC 1 pulled the shared interrupt line */
+	if (!gpio_get_level(GPIO_USB_C1_INT_ODL)) {
+		if (!tcpc_read16(1, TCPC_REG_ALERT, &regval)) {
+			if (regval)
+				status = PD_STATUS_TCPC_ALERT_1;
+		}
+	}
+
+	return status;
+}
+
+void board_set_charge_limit(int port, int supplier, int charge_ma, int max_ma,
+			    int charge_mv)
+{
+	int icl = MAX(charge_ma, CONFIG_CHARGER_INPUT_CURRENT);
+
+	/* Limit C1 on board version 0 to 2.0 A */
+	if ((board_version == 0) && (port == 1))
+		icl = MIN(icl, 2000);
+	/*
+	 * TODO(b/151955431): Characterize the input current limit in case a
+	 * scaling needs to be applied here
+	 */
+	charge_set_input_current_limit(icl, charge_mv);
+}
+
+int board_set_active_charge_port(int port)
+{
+	int is_valid_port = (port >= 0 && port < board_get_usb_pd_port_count());
+
+	if (!is_valid_port && port != CHARGE_PORT_NONE)
+		return EC_ERROR_INVAL;
+
+	if (port == CHARGE_PORT_NONE) {
+		CPRINTUSB("Disabling all charge ports");
+
+		sm5803_vbus_sink_enable(CHARGER_PRIMARY, 0);
+
+		if (board_get_charger_chip_count() > 1)
+			sm5803_vbus_sink_enable(CHARGER_SECONDARY, 0);
+
+		return EC_SUCCESS;
+	}
+
+	CPRINTUSB("New chg p%d", port);
+
+	/*
+	 * Ensure other port is turned off, then enable new charge port
+	 */
+	if (port == 0) {
+		if (board_get_charger_chip_count() > 1)
+			sm5803_vbus_sink_enable(CHARGER_SECONDARY, 0);
+		sm5803_vbus_sink_enable(CHARGER_PRIMARY, 1);
+
+	} else {
+		sm5803_vbus_sink_enable(CHARGER_PRIMARY, 0);
+		sm5803_vbus_sink_enable(CHARGER_SECONDARY, 1);
+	}
+
+	return EC_SUCCESS;
+}
+
+/* Vconn control for integrated ITE TCPC */
+void board_pd_vconn_ctrl(int port, enum usbpd_cc_pin cc_pin, int enabled)
+{
+	/* Vconn control is only for port 0 */
+	if (port)
+		return;
+
+	if (cc_pin == USBPD_CC_PIN_1)
+		gpio_set_level(GPIO_EN_USB_C0_CC1_VCONN, !!enabled);
+	else
+		gpio_set_level(GPIO_EN_USB_C0_CC2_VCONN, !!enabled);
+}
+
+__override void typec_set_source_current_limit(int port, enum tcpc_rp_value rp)
+{
+	int current;
+
+	if (port < 0 || port > board_get_usb_pd_port_count())
+		return;
+
+	current = (rp == TYPEC_RP_3A0) ? 3000 : 1500;
+
+	charger_set_otg_current_voltage(port, current, 5000);
+}
+
+/* PWM channels. Must be in the exactly same order as in enum pwm_channel. */
+const struct pwm_t pwm_channels[] = {
+	[PWM_CH_KBLIGHT] = {
+		.channel = 0,
+		.flags = PWM_CONFIG_DSLEEP,
+		.freq_hz = 10000,
+	}
+};
+BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);
+
+/* Thermistors */
+const struct temp_sensor_t temp_sensors[] = {
+	[TEMP_SENSOR_1] = {.name = "Memory",
+			   .type = TEMP_SENSOR_TYPE_BOARD,
+			   .read = get_temp_3v3_51k1_47k_4050b,
+			   .idx = ADC_TEMP_SENSOR_1},
+	[TEMP_SENSOR_2] = {.name = "Ambient",
+			   .type = TEMP_SENSOR_TYPE_BOARD,
+			   .read = get_temp_3v3_51k1_47k_4050b,
+			   .idx = ADC_TEMP_SENSOR_2},
+	[TEMP_SENSOR_3] = {.name = "Charger",
+			   .type = TEMP_SENSOR_TYPE_BOARD,
+			   .read = get_temp_3v3_51k1_47k_4050b,
+			   .idx = ADC_TEMP_SENSOR_3},
+	[TEMP_SENSOR_4] = {.name = "5V regular",
+			   .type = TEMP_SENSOR_TYPE_BOARD,
+			   .read = get_temp_3v3_51k1_47k_4050b,
+			   .idx = ADC_TEMP_SENSOR_4},
+};
+BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);
+
+#ifndef TEST_BUILD
+/* This callback disables keyboard when convertibles are fully open */
+void lid_angle_peripheral_enable(int enable)
+{
+	int chipset_in_s0 = chipset_in_state(CHIPSET_STATE_ON);
+
+	/*
+	 * If the lid is in tablet position via other sensors,
+	 * ignore the lid angle, which might be faulty then
+	 * disable keyboard.
+	 */
+	if (tablet_get_mode())
+		enable = 0;
+
+	if (enable) {
+		keyboard_scan_enable(1, KB_SCAN_DISABLE_LID_ANGLE);
+	} else {
+		/*
+		 * Ensure that the chipset is off before disabling the keyboard.
+		 * When the chipset is on, the EC keeps the keyboard enabled and
+		 * the AP decides whether to ignore input devices or not.
+		 */
+		if (!chipset_in_s0)
+			keyboard_scan_enable(0, KB_SCAN_DISABLE_LID_ANGLE);
+	}
+}
+#endif
+
+__override void ocpc_get_pid_constants(int *kp, int *kp_div,
+				       int *ki, int *ki_div,
+				       int *kd, int *kd_div)
+{
+	*kp = 3;
+	*kp_div = 14;
+
+	*ki = 3;
+	*ki_div = 500;
+
+	*kd = 4;
+	*kd_div = 40;
+}
+
+#ifdef CONFIG_KEYBOARD_FACTORY_TEST
+/*
+ * Map keyboard connector pins to EC GPIO pins for factory test.
+ * Pins mapped to {-1, -1} are skipped.
+ * The connector has 24 pins total, and there is no pin 0.
+ */
+const int keyboard_factory_scan_pins[][2] = {
+	{-1, -1}, {GPIO_KSO_H, 4}, {GPIO_KSO_H, 0}, {GPIO_KSO_H, 1},
+	{GPIO_KSO_H, 3}, {GPIO_KSO_H, 2}, {GPIO_KSO_L, 5}, {GPIO_KSO_L, 6},
+	{GPIO_KSO_L, 3}, {GPIO_KSO_L, 2}, {GPIO_KSI, 0}, {GPIO_KSO_L, 1},
+	{GPIO_KSO_L, 4}, {GPIO_KSI, 3}, {GPIO_KSI, 2}, {GPIO_KSO_L, 0},
+	{GPIO_KSI, 5}, {GPIO_KSI, 4}, {GPIO_KSO_L, 7}, {GPIO_KSI, 6},
+	{GPIO_KSI, 7}, {GPIO_KSI, 1}, {-1, -1}, {-1, -1}, {-1, -1},
+};
+
+const int keyboard_factory_scan_pins_used =
+			ARRAY_SIZE(keyboard_factory_scan_pins);
+#endif
diff --git a/board/lantis/board.h b/board/lantis/board.h
new file mode 100644
index 0000000000..bcdaf4112d
--- /dev/null
+++ b/board/lantis/board.h
@@ -0,0 +1,158 @@
+/* Copyright 2020 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.
+ */
+
+/* Drawcia board configuration */
+
+#ifndef __CROS_EC_BOARD_H
+#define __CROS_EC_BOARD_H
+
+/* Select Baseboard features */
+#define VARIANT_DEDEDE_EC_IT8320
+#include "baseboard.h"
+
+#undef GPIO_VOLUME_UP_L
+#define GPIO_VOLUME_UP_L GPIO_VOLUP_BTN_ODL_HDMI_HPD
+
+/* System unlocked in early development */
+#define CONFIG_SYSTEM_UNLOCKED
+
+/* Battery */
+#define CONFIG_BATTERY_FUEL_GAUGE
+
+/* BC 1.2 */
+#define CONFIG_BC12_DETECT_PI3USB9201
+
+/* Charger */
+#define CONFIG_CHARGE_RAMP_HW
+#define CONFIG_CHARGER_SM5803		/* C0 and C1: Charger */
+#define CONFIG_USB_PD_VBUS_DETECT_CHARGER
+#define CONFIG_USB_PD_5V_CHARGER_CTRL
+#define CONFIG_CHARGER_OTG
+#undef  CONFIG_CHARGER_SINGLE_CHIP
+#define CONFIG_OCPC
+#define CONFIG_OCPC_DEF_RBATT_MOHMS 21 /* R_DS(on) 10.7mOhm + 10mOhm sns rstr */
+
+/* PWM */
+#define CONFIG_PWM
+
+/* Sensors */
+#define CONFIG_ACCEL_BMA255		/* Lid accel */
+#define CONFIG_ACCELGYRO_LSM6DSM	/* Base accel */
+/* Sensors without hardware FIFO are in forced mode */
+#define CONFIG_ACCEL_FORCE_MODE_MASK BIT(LID_ACCEL)
+
+#define CONFIG_ACCEL_INTERRUPTS
+/* Enable sensor fifo, must also define the _SIZE and _THRES */
+#define CONFIG_ACCEL_FIFO
+/* Power of 2 - Too large of a fifo causes too much timestamp jitter */
+#define CONFIG_ACCEL_FIFO_SIZE 256
+#define CONFIG_ACCEL_FIFO_THRES (CONFIG_ACCEL_FIFO_SIZE / 3)
+
+#define CONFIG_DYNAMIC_MOTION_SENSOR_COUNT
+
+#define CONFIG_LID_ANGLE
+#define CONFIG_LID_ANGLE_UPDATE
+#define CONFIG_LID_ANGLE_SENSOR_BASE BASE_ACCEL
+#define CONFIG_LID_ANGLE_SENSOR_LID LID_ACCEL
+
+#define CONFIG_ACCEL_LSM6DSM_INT_EVENT \
+	TASK_EVENT_MOTION_SENSOR_INTERRUPT(BASE_ACCEL)
+
+#define CONFIG_TABLET_MODE
+#define CONFIG_TABLET_MODE_SWITCH
+#define CONFIG_GMR_TABLET_MODE
+
+/* Keyboard */
+#define CONFIG_KEYBOARD_FACTORY_TEST
+#define CONFIG_PWM_KBLIGHT
+
+/* TCPC */
+#define CONFIG_USB_PD_PORT_MAX_COUNT 2
+#define CONFIG_USB_PD_TCPM_ITE_ON_CHIP	/* C0: ITE EC TCPC */
+#define CONFIG_USB_PD_TCPM_PS8705	/* C1: PS8705 TCPC*/
+#define CONFIG_USB_PD_ITE_ACTIVE_PORT_COUNT 1
+#define CONFIG_USB_PD_DUAL_ROLE_AUTO_TOGGLE
+#define CONFIG_USB_PD_TCPC_LOW_POWER
+
+/* Thermistors */
+#define CONFIG_TEMP_SENSOR
+#define CONFIG_THERMISTOR
+#define CONFIG_STEINHART_HART_3V3_51K1_47K_4050B
+#define CONFIG_TEMP_SENSOR_POWER_GPIO GPIO_EN_PP3300_A
+
+/* USB Mux and Retimer */
+#define CONFIG_USB_MUX_IT5205			/* C1: ITE Mux */
+#define I2C_PORT_USB_MUX I2C_PORT_USB_C0	/* Required for ITE Mux */
+
+/* USB Type A Features */
+#define USB_PORT_COUNT 1
+#define CONFIG_USB_PORT_POWER_DUMB
+
+#ifndef __ASSEMBLER__
+
+#include "gpio_signal.h"
+#include "registers.h"
+
+enum chg_id {
+	CHARGER_PRIMARY,
+	CHARGER_SECONDARY,
+	CHARGER_NUM,
+};
+
+enum pwm_channel {
+	PWM_CH_KBLIGHT,
+	PWM_CH_COUNT,
+};
+
+/* Motion sensors */
+enum sensor_id {
+	LID_ACCEL,
+	BASE_ACCEL,
+	BASE_GYRO,
+	SENSOR_COUNT
+};
+
+/* ADC channels */
+enum adc_channel {
+	ADC_VSNS_PP3300_A,     /* ADC0 */
+	ADC_TEMP_SENSOR_1,     /* ADC2 */
+	ADC_TEMP_SENSOR_2,     /* ADC3 */
+	ADC_SUB_ANALOG,        /* ADC13 */
+	ADC_TEMP_SENSOR_3,     /* ADC15 */
+	ADC_TEMP_SENSOR_4,     /* ADC16 */
+	ADC_CH_COUNT
+};
+
+enum temp_sensor_id {
+	TEMP_SENSOR_1,
+	TEMP_SENSOR_2,
+	TEMP_SENSOR_3,
+	TEMP_SENSOR_4,
+	TEMP_SENSOR_COUNT
+};
+
+/* List of possible batteries */
+enum battery_type {
+	BATTERY_DANAPACK_COS,
+	BATTERY_DANAPACK_ATL,
+	BATTERY_DANAPACK_HIGHPOWER,
+	BATTERY_DANAPACK_BYD,
+	BATTERY_SAMSUNG_SDI,
+	BATTERY_SIMPLO_COS,
+	BATTERY_SIMPLO_HIGHPOWER,
+	BATTERY_COS,
+	BATTERY_TYPE_COUNT,
+};
+
+int board_is_sourcing_vbus(int port);
+
+#ifdef CONFIG_KEYBOARD_FACTORY_TEST
+extern const int keyboard_factory_scan_pins[][2];
+extern const int keyboard_factory_scan_pins_used;
+#endif
+
+#endif /* !__ASSEMBLER__ */
+
+#endif /* __CROS_EC_BOARD_H */
diff --git a/board/lantis/build.mk b/board/lantis/build.mk
new file mode 100644
index 0000000000..00e4e0bb5d
--- /dev/null
+++ b/board/lantis/build.mk
@@ -0,0 +1,15 @@
+# -*- makefile -*-
+# Copyright 2020 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 specific files build
+#
+
+CHIP:=it83xx
+CHIP_FAMILY:=it8320
+CHIP_VARIANT:=it8320dx
+BASEBOARD:=dedede
+
+board-y=board.o led.o usb_pd_policy.o
+board-$(CONFIG_BATTERY_SMART)+=battery.o
diff --git a/board/lantis/ec.tasklist b/board/lantis/ec.tasklist
new file mode 100644
index 0000000000..75181a4531
--- /dev/null
+++ b/board/lantis/ec.tasklist
@@ -0,0 +1,24 @@
+/* Copyright 2020 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.
+ */
+
+/*
+ * See CONFIG_TASK_LIST in config.h for details.
+ */
+
+#define CONFIG_TASK_LIST \
+	TASK_ALWAYS(HOOKS, hook_task, NULL, VENTI_TASK_STACK_SIZE) \
+	TASK_ALWAYS(MOTIONSENSE, motion_sense_task, NULL, VENTI_TASK_STACK_SIZE) \
+	TASK_ALWAYS(USB_CHG_P0, usb_charger_task, 0, LARGER_TASK_STACK_SIZE) \
+	TASK_ALWAYS(USB_CHG_P1, usb_charger_task, 1, LARGER_TASK_STACK_SIZE) \
+	TASK_ALWAYS(CHARGER, charger_task, NULL, VENTI_TASK_STACK_SIZE) \
+	TASK_NOTEST(CHIPSET, chipset_task, NULL, VENTI_TASK_STACK_SIZE) \
+	TASK_NOTEST(KEYPROTO, keyboard_protocol_task, NULL, TASK_STACK_SIZE) \
+	TASK_ALWAYS(HOSTCMD, host_command_task, NULL, VENTI_TASK_STACK_SIZE) \
+	TASK_ALWAYS(CONSOLE, console_task, NULL, VENTI_TASK_STACK_SIZE) \
+	TASK_ALWAYS(POWERBTN, power_button_task, NULL, VENTI_TASK_STACK_SIZE) \
+	TASK_NOTEST(KEYSCAN, keyboard_scan_task, NULL, TASK_STACK_SIZE) \
+        TASK_ALWAYS(PD_C0, pd_task, NULL, ULTRA_TASK_STACK_SIZE) \
+        TASK_ALWAYS(PD_C1, pd_task, NULL, ULTRA_TASK_STACK_SIZE) \
+        TASK_ALWAYS(PD_INT_C1, pd_interrupt_handler_task, 1, ULTRA_TASK_STACK_SIZE)
diff --git a/board/lantis/gpio.inc b/board/lantis/gpio.inc
new file mode 100644
index 0000000000..429b952eef
--- /dev/null
+++ b/board/lantis/gpio.inc
@@ -0,0 +1,147 @@
+/* -*- mode:c -*-
+ *
+ * Copyright 2020 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.
+ */
+
+/* Declare symbolic names for all the GPIOs that we care about.
+ * Note: Those with interrupt handlers must be declared first. */
+
+/* Power State interrupts */
+GPIO_INT(SLP_S4_L,		PIN(I, 5), GPIO_INT_BOTH, power_signal_interrupt)
+GPIO_INT(SLP_S3_L,		PIN(H, 3), GPIO_INT_BOTH, baseboard_all_sys_pgood_interrupt)
+GPIO_INT(SLP_S0_L,		PIN(E, 4), GPIO_INT_BOTH, power_signal_interrupt)
+GPIO_INT(SLP_SUS_L,		PIN(G, 2), GPIO_INT_BOTH, power_signal_interrupt)
+GPIO_INT(VCCIN_AUX_VID0,	PIN(D, 0), GPIO_INT_BOTH, power_signal_interrupt)
+GPIO_INT(RSMRST_PWRGD_L,	PIN(E, 1), GPIO_INT_BOTH, power_signal_interrupt)
+GPIO_INT(CPU_C10_GATE_L,	PIN(G, 1), GPIO_INT_BOTH, power_signal_interrupt)
+GPIO_INT(PG_DRAM_OD,		PIN(D, 3), GPIO_INT_BOTH, baseboard_all_sys_pgood_interrupt)
+GPIO_INT(PG_PP1050_ST_OD,	PIN(L, 1), GPIO_INT_BOTH, power_signal_interrupt)
+GPIO_INT(VCCIN_AUX_VID1,	PIN(K, 1), GPIO_INT_BOTH, power_signal_interrupt)
+GPIO_INT(PG_VCCIO_EXT_OD,	PIN(D, 7), GPIO_INT_BOTH, baseboard_all_sys_pgood_interrupt)
+GPIO_INT(ESPI_RESET_L, 	 PIN(D, 2), GPIO_INT_FALLING | GPIO_SEL_1P8V, espi_reset_pin_asserted_interrupt)
+
+GPIO_INT(H1_EC_PWR_BTN_ODL,	PIN(E, 2), GPIO_INT_BOTH | GPIO_PULL_UP, power_button_interrupt)
+#ifdef CONFIG_LOW_POWER_IDLE
+/* Used to wake up the EC from Deep Doze mode when writing to console */
+GPIO_INT(UART1_RX,	 PIN(B, 0), GPIO_INT_BOTH, uart_deepsleep_interrupt)	/* UART_DBG_TX_EC_RX */
+#endif
+
+/* USB-C interrupts */
+GPIO_INT(USB_C0_INT_ODL,	PIN(K, 0), GPIO_INT_FALLING | GPIO_PULL_UP, usb_c0_interrupt) /* BC12 and charger */
+GPIO_INT(USB_C1_INT_ODL,	PIN(E, 6), GPIO_INT_FALLING | GPIO_PULL_UP, usb_c1_interrupt) /* TCPC, charger, BC12 */
+GPIO_INT(USB_C0_CCSBU_OVP_ODL,	PIN(K, 6), GPIO_INT_FALLING | GPIO_PULL_UP, c0_ccsbu_ovp_interrupt) /* Fault protection */
+
+/* Other interrupts */
+GPIO_INT(LID_OPEN,		PIN(F, 3), GPIO_INT_BOTH, lid_interrupt)
+GPIO_INT(LID_360_L,		PIN(A, 7), GPIO_INT_BOTH, gmr_tablet_switch_isr)
+GPIO_INT(VOLDN_BTN_ODL,		PIN(I, 6), GPIO_INT_BOTH | GPIO_PULL_UP, button_interrupt)
+GPIO_INT(VOLUP_BTN_ODL_HDMI_HPD,	PIN(I, 7), GPIO_INT_BOTH | GPIO_PULL_UP, button_sub_hdmi_hpd_interrupt)
+GPIO_INT(BASE_SIXAXIS_INT_L,	PIN(J, 0), GPIO_INT_FALLING | GPIO_SEL_1P8V, lsm6dsm_interrupt)
+GPIO_INT(EC_WP_OD,		PIN(A, 6), GPIO_INT_BOTH, switch_interrupt)
+GPIO_INT(PEN_DET_ODL,		PIN(J, 1), GPIO_INT_BOTH | GPIO_PULL_UP, pen_detect_interrupt)
+
+/* Power sequence GPIOs */
+GPIO(EC_AP_RTCRST,		PIN(K, 2), GPIO_OUT_LOW)
+GPIO(EC_AP_PWR_BTN_ODL,		PIN(B, 6), GPIO_ODR_HIGH)
+GPIO(EC_AP_DPWROK,		PIN(L, 7), GPIO_OUT_LOW)
+GPIO(EC_AP_RSMRST_L,		PIN(H, 0), GPIO_OUT_LOW)
+GPIO(EC_AP_WAKE_ODL,		PIN(D, 5), GPIO_ODR_HIGH)
+GPIO(SYS_RST_ODL,		PIN(D, 1), GPIO_ODR_HIGH)
+GPIO(EC_AP_SYS_PWROK,		PIN(F, 2), GPIO_OUT_LOW)
+GPIO(PG_PP5000_U_OD,		PIN(E, 3), GPIO_INPUT)
+GPIO(EN_PP3300_A,		PIN(C, 5), GPIO_OUT_LOW)
+GPIO(EC_AP_PCH_PWROK_OD,	PIN(D, 6), GPIO_ODR_LOW)
+GPIO(EN_PP5000_U,		PIN(K, 5), GPIO_OUT_LOW)
+/* TODO(b:149775160) - Modify if needed if we ever use this signal. */
+GPIO(EN_VCCST,			PIN(D, 4), GPIO_INPUT)
+GPIO(EN_VCCIO_EXT,		PIN(B, 2), GPIO_OUT_LOW)
+GPIO(EC_PROCHOT_ODL,		PIN(I, 1), GPIO_ODR_HIGH | GPIO_SEL_1P8V)
+GPIO(EC_AP_VCCST_PWRGD_OD,	PIN(E, 5), GPIO_ODR_LOW)
+GPIO(ALL_SYS_PWRGD,		PIN(B, 7), GPIO_OUT_LOW)
+GPIO(EN_SLP_Z,			PIN(K, 3), GPIO_OUT_LOW)
+
+/* Required for icelake chipset code, but implemented through other means for dedede */
+UNIMPLEMENTED(AC_PRESENT)
+UNIMPLEMENTED(PG_EC_DSW_PWROK)
+UNIMPLEMENTED(PG_EC_ALL_SYS_PWRGD)
+
+/* I2C pins - Alternate function below configures I2C module on these pins */
+GPIO(EC_I2C_EEPROM_SCL,		PIN(B, 3), GPIO_INPUT)
+GPIO(EC_I2C_EEPROM_SDA,		PIN(B, 4), GPIO_INPUT)
+GPIO(EC_I2C_BATTERY_SCL,	PIN(C, 1), GPIO_INPUT)
+GPIO(EC_I2C_BATTERY_SDA,	PIN(C, 2), GPIO_INPUT)
+GPIO(EC_I2C_SENSOR_SCL,		PIN(F, 6), GPIO_INPUT | GPIO_SEL_1P8V)
+GPIO(EC_I2C_SENSOR_SDA,		PIN(F, 7), GPIO_INPUT | GPIO_SEL_1P8V)
+GPIO(EC_I2C_SUB_USB_C1_SCL,	PIN(E, 0), GPIO_INPUT)
+GPIO(EC_I2C_SUB_USB_C1_SDA,	PIN(E, 7), GPIO_INPUT)
+GPIO(EC_I2C_USB_C0_SCL,		PIN(A, 4), GPIO_INPUT)
+GPIO(EC_I2C_USB_C0_SDA,		PIN(A, 5), GPIO_INPUT)
+
+/* USB pins */
+GPIO(EN_USB_A_5V,			PIN(L, 6), GPIO_OUT_LOW)
+GPIO(EN_USB_C0_CC1_VCONN,	PIN(H, 4), GPIO_OUT_LOW)
+GPIO(EN_USB_C0_CC2_VCONN,	PIN(H, 6), GPIO_OUT_LOW)
+GPIO(EC_AP_USB_C0_HPD,		PIN(L, 4), GPIO_OUT_LOW)
+GPIO(EC_AP_USB_C1_HDMI_HPD,	PIN(K, 7), GPIO_OUT_LOW)
+GPIO(USB_C0_FRS,		PIN(C, 4), GPIO_OUT_LOW)
+GPIO(HDMI_SEL_L,		PIN(C, 6), GPIO_OUT_HIGH)
+
+/* MKBP event synchronization */
+GPIO(EC_AP_MKBP_INT_L,	PIN(L, 5), GPIO_ODR_HIGH)
+
+/* Misc pins which will run to the I/O board */
+GPIO(EC_SUB_IO_1_2, PIN(F, 0), GPIO_INPUT)
+GPIO(EC_SUB_IO_2_1, PIN(F, 1), GPIO_INPUT)
+
+/* Misc */
+GPIO(EN_BL_OD,			PIN(K, 4), GPIO_ODR_LOW)
+GPIO(EC_ENTERING_RW,		PIN(G, 0), GPIO_OUT_LOW)
+GPIO(CCD_MODE_ODL,		PIN(H, 5), GPIO_INPUT)
+GPIO(EC_BATTERY_PRES_ODL,	PIN(I, 4), GPIO_INPUT)
+GPIO(EN_KB_BL,			PIN(J, 3), GPIO_OUT_LOW) /* Currently unused */
+GPIO(ECH1_PACKET_MODE,		PIN(H, 1), GPIO_OUT_LOW)
+GPIO(EN_PP5000_PEN,		PIN(B, 5), GPIO_OUT_LOW)
+
+/* NC pins, enable internal pull-down to avoid floating state. */
+GPIO(GPIOC0_NC, PIN(C, 0), GPIO_INPUT | GPIO_PULL_DOWN)
+GPIO(GPIOC3_NC, PIN(C, 3), GPIO_INPUT | GPIO_PULL_DOWN)
+GPIO(GPIOG3_NC, PIN(G, 3), GPIO_INPUT | GPIO_PULL_DOWN)
+GPIO(GPIOG4_NC, PIN(G, 4), GPIO_INPUT | GPIO_PULL_DOWN)
+GPIO(GPIOG5_NC, PIN(G, 5), GPIO_INPUT | GPIO_PULL_DOWN)
+GPIO(GPIOG6_NC, PIN(G, 6), GPIO_INPUT | GPIO_PULL_DOWN)
+GPIO(GPIOG7_NC, PIN(G, 7), GPIO_INPUT | GPIO_PULL_DOWN)
+GPIO(GPIOJ4_NC, PIN(J, 4), GPIO_INPUT | GPIO_PULL_DOWN)
+GPIO(GPIOJ5_NC, PIN(J, 5), GPIO_INPUT | GPIO_PULL_DOWN)
+GPIO(GPIOJ6_NC, PIN(J, 6), GPIO_INPUT | GPIO_PULL_DOWN)
+GPIO(GPIOM6_NC, PIN(M, 6), GPIO_INPUT | GPIO_PULL_DOWN)
+
+/* LED */
+GPIO(BAT_LED_AMBER_L,	 PIN(A, 1), GPIO_OUT_HIGH)
+GPIO(BAT_LED_WHITE_L,	 PIN(A, 2), GPIO_OUT_HIGH)
+GPIO(PWR_LED_WHITE_L,	 PIN(A, 3), GPIO_OUT_HIGH)
+
+/* Alternate functions GPIO definitions */
+/* Keyboard */
+ALTERNATE(PIN_MASK(KSI,   0xFF), 0, MODULE_KEYBOARD_SCAN, 0)		/* KSI0-7 */
+ALTERNATE(PIN_MASK(KSO_H, 0xFF), 0, MODULE_KEYBOARD_SCAN, 0)		/* KSO8-15 */
+ALTERNATE(PIN_MASK(KSO_L, 0xFB), 0, MODULE_KEYBOARD_SCAN, 0)		/* KSO0-1, 3-7 */
+GPIO(EC_KSO_02_INV, PIN(KSO_L, 2), GPIO_OUT_HIGH)			/* KSO2 inverted */
+
+/* UART */
+ALTERNATE(PIN_MASK(B, BIT(0) | BIT(1)), 0, MODULE_UART, 0)		/* UART for debug */
+
+/* I2C */
+ALTERNATE(PIN_MASK(B, BIT(3) | BIT(4)), 0, MODULE_I2C, 0)		/* I2C0 */
+ALTERNATE(PIN_MASK(C, BIT(1) | BIT(2)), 0, MODULE_I2C, 0)		/* I2C1 */
+ALTERNATE(PIN_MASK(F, BIT(6) | BIT(7)), 0, MODULE_I2C, GPIO_SEL_1P8V)	/* I2C2 - 1.8V */
+ALTERNATE(PIN_MASK(E, BIT(0) | BIT(7)), 0, MODULE_I2C, 0)		/* I2C4 */
+ALTERNATE(PIN_MASK(A, BIT(4) | BIT(5)), 0, MODULE_I2C, 0)		/* I2C5 */
+
+/* ADC */
+ALTERNATE(PIN_MASK(L, BIT(0) | BIT(2) | BIT(3)), 0, MODULE_ADC, 0)	/* ADC13: EC_SUB_ANALOG, ADC15: TEMP_SENSOR_3, ADC16: TEMP_SENSOR_4 */
+ALTERNATE(PIN_MASK(I, BIT(0) | BIT(2) | BIT(3)), 0, MODULE_ADC, 0)	/* ADC0: EC_VSNS_PP3300_A, ADC2: TEMP_SENSOR_1, ADC3: TEMP_SENSOR_2 */
+
+/* PWM */
+ALTERNATE(PIN_MASK(A, BIT(0)), 0, MODULE_PWM, 0) 			/* KB_BL_PWM */
diff --git a/board/lantis/led.c b/board/lantis/led.c
new file mode 100644
index 0000000000..68242180fa
--- /dev/null
+++ b/board/lantis/led.c
@@ -0,0 +1,203 @@
+/* Copyright 2020 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.
+ */
+
+/* Drawcia specific LED settings. */
+
+#include "cbi_fw_config.h"
+#include "charge_state.h"
+#include "extpower.h"
+#include "hooks.h"
+#include "led_common.h"
+
+#define BAT_LED_ON 0
+#define BAT_LED_OFF 1
+
+#define POWER_LED_ON 0
+#define POWER_LED_OFF 1
+
+const enum ec_led_id supported_led_ids[] = {
+	EC_LED_ID_BATTERY_LED,
+	EC_LED_ID_POWER_LED
+};
+
+const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids);
+
+enum led_color {
+	LED_OFF = 0,
+	LED_AMBER,
+	LED_WHITE,
+	LED_COLOR_COUNT  /* Number of colors, not a color itself */
+};
+
+static int led_set_color_battery(enum led_color color)
+{
+	switch (color) {
+	case LED_OFF:
+		gpio_set_level(GPIO_BAT_LED_WHITE_L, BAT_LED_OFF);
+		gpio_set_level(GPIO_BAT_LED_AMBER_L, BAT_LED_OFF);
+		break;
+	case LED_WHITE:
+		gpio_set_level(GPIO_BAT_LED_WHITE_L, BAT_LED_ON);
+		gpio_set_level(GPIO_BAT_LED_AMBER_L, BAT_LED_OFF);
+		break;
+	case LED_AMBER:
+		gpio_set_level(GPIO_BAT_LED_WHITE_L, BAT_LED_OFF);
+		gpio_set_level(GPIO_BAT_LED_AMBER_L, BAT_LED_ON);
+		break;
+	default:
+		return EC_ERROR_UNKNOWN;
+	}
+	return EC_SUCCESS;
+}
+
+static int led_set_color_power(enum ec_led_colors color)
+{
+	switch (color) {
+	case LED_OFF:
+		gpio_set_level(GPIO_PWR_LED_WHITE_L, POWER_LED_OFF);
+		break;
+	case LED_WHITE:
+		gpio_set_level(GPIO_PWR_LED_WHITE_L, POWER_LED_ON);
+		break;
+	default:
+		return EC_ERROR_UNKNOWN;
+	}
+	return EC_SUCCESS;
+}
+
+void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range)
+{
+	switch (led_id) {
+	case EC_LED_ID_BATTERY_LED:
+		brightness_range[EC_LED_COLOR_WHITE] = 1;
+		brightness_range[EC_LED_COLOR_AMBER] = 1;
+		break;
+	case EC_LED_ID_POWER_LED:
+		brightness_range[EC_LED_COLOR_WHITE] = 1;
+		break;
+	default:
+		break;
+	}
+}
+
+static int led_set_color(enum ec_led_id led_id, enum led_color color)
+{
+	int rv;
+
+	switch (led_id) {
+	case EC_LED_ID_BATTERY_LED:
+		rv = led_set_color_battery(color);
+		break;
+	case EC_LED_ID_POWER_LED:
+		rv = led_set_color_power(color);
+		break;
+	default:
+		return EC_ERROR_UNKNOWN;
+	}
+	return rv;
+}
+
+int led_set_brightness(enum ec_led_id led_id, const uint8_t *brightness)
+{
+	if (brightness[EC_LED_COLOR_WHITE] != 0)
+		led_set_color(led_id, LED_WHITE);
+	else if (brightness[EC_LED_COLOR_AMBER] != 0)
+		led_set_color(led_id, LED_AMBER);
+	else
+		led_set_color(led_id, LED_OFF);
+
+	return EC_SUCCESS;
+}
+
+static void led_set_battery(void)
+{
+	static int battery_ticks;
+	static int power_ticks;
+	uint32_t chflags = charge_get_flags();
+
+	battery_ticks++;
+
+	/*
+	 * Override battery LED for Drawlet/Drawman, Drawlet/Drawman
+	 * don't have power LED, blinking battery white LED to indicate
+	 * system suspend without charging.
+	 */
+	if (get_cbi_fw_config_tablet_mode() == TABLET_MODE_ABSENT) {
+		if (chipset_in_state(CHIPSET_STATE_ANY_SUSPEND) &&
+			charge_get_state() != PWR_STATE_CHARGE) {
+			led_set_color_battery(power_ticks++ & 0x2 ?
+						  LED_WHITE : LED_OFF);
+			return;
+		}
+	}
+
+	power_ticks = 0;
+
+	switch (charge_get_state()) {
+	case PWR_STATE_CHARGE:
+		led_set_color_battery(LED_AMBER);
+		break;
+	case PWR_STATE_DISCHARGE_FULL:
+		if (extpower_is_present()) {
+			led_set_color_battery(LED_WHITE);
+			break;
+		}
+		/* Intentional fall-through */
+	case PWR_STATE_DISCHARGE:
+		/*
+		 * Blink white light (1 sec on, 1 sec off)
+		 * when battery capacity is less than 10%
+		 */
+		if (charge_get_percent() < 10)
+			led_set_color_battery(
+				(battery_ticks & 0x2) ? LED_WHITE : LED_OFF);
+		else
+			led_set_color_battery(LED_OFF);
+		break;
+	case PWR_STATE_ERROR:
+		led_set_color_battery(
+			(battery_ticks % 0x2) ? LED_WHITE : LED_OFF);
+		break;
+	case PWR_STATE_CHARGE_NEAR_FULL:
+		led_set_color_battery(LED_WHITE);
+		break;
+	case PWR_STATE_IDLE: /* External power connected in IDLE */
+		if (chflags & CHARGE_FLAG_FORCE_IDLE)
+			led_set_color_battery(
+				(battery_ticks & 0x2) ? LED_AMBER : LED_OFF);
+		else
+			led_set_color_battery(LED_WHITE);
+		break;
+	default:
+		/* Other states don't alter LED behavior */
+		break;
+	}
+}
+
+static void led_set_power(void)
+{
+	static int power_tick;
+
+	power_tick++;
+
+	if (chipset_in_state(CHIPSET_STATE_ON))
+		led_set_color_power(LED_WHITE);
+	else if (chipset_in_state(CHIPSET_STATE_ANY_SUSPEND))
+		led_set_color_power(
+			(power_tick & 0x2) ? LED_WHITE : LED_OFF);
+	else
+		led_set_color_power(LED_OFF);
+}
+
+/* Called by hook task every TICK */
+static void led_tick(void)
+{
+	if (led_auto_control_is_enabled(EC_LED_ID_POWER_LED))
+		led_set_power();
+
+	if (led_auto_control_is_enabled(EC_LED_ID_BATTERY_LED))
+		led_set_battery();
+}
+DECLARE_HOOK(HOOK_TICK, led_tick, HOOK_PRIO_DEFAULT);
diff --git a/board/lantis/usb_pd_policy.c b/board/lantis/usb_pd_policy.c
new file mode 100644
index 0000000000..9d53f20047
--- /dev/null
+++ b/board/lantis/usb_pd_policy.c
@@ -0,0 +1,95 @@
+/* Copyright 2020 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.
+ */
+
+#include "battery_smart.h"
+#include "charge_manager.h"
+#include "charger.h"
+#include "chipset.h"
+#include "common.h"
+#include "console.h"
+#include "driver/charger/sm5803.h"
+#include "driver/tcpm/tcpci.h"
+#include "usb_pd.h"
+
+#define CPRINTF(format, args...) cprintf(CC_USBPD, format, ## args)
+#define CPRINTS(format, args...) cprints(CC_USBPD, format, ## args)
+
+int pd_check_vconn_swap(int port)
+{
+	/* Allow VCONN swaps if the AP is on */
+	return chipset_in_state(CHIPSET_STATE_ANY_SUSPEND | CHIPSET_STATE_ON);
+}
+
+void pd_power_supply_reset(int port)
+{
+	int prev_en;
+
+	if (port < 0 || port >= board_get_usb_pd_port_count())
+		return;
+
+	prev_en = charger_is_sourcing_otg_power(port);
+
+	/* Disable Vbus */
+	charger_enable_otg_power(port, 0);
+
+	/* Discharge Vbus if previously enabled */
+	if (prev_en)
+		sm5803_set_vbus_disch(port, 1);
+
+#ifdef CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT
+	/* Give back the current quota we are no longer using */
+	charge_manager_source_port(port, 0);
+#endif /* defined(CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT) */
+
+	/* Notify host of power info change. */
+	pd_send_host_event(PD_EVENT_POWER_CHANGE);
+}
+
+int pd_set_power_supply_ready(int port)
+{
+	enum ec_error_list rv;
+
+	/* Disable sinking */
+	rv = sm5803_vbus_sink_enable(port, 0);
+	if (rv)
+		return rv;
+
+	/* Disable Vbus discharge */
+	sm5803_set_vbus_disch(port, 0);
+
+	/* Provide Vbus */
+	charger_enable_otg_power(port, 1);
+
+#ifdef CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT
+	/* Ensure we advertise the proper available current quota */
+	charge_manager_source_port(port, 1);
+#endif /* defined(CONFIG_USB_PD_MAX_SINGLE_SOURCE_CURRENT) */
+
+	/* Notify host of power info change. */
+	pd_send_host_event(PD_EVENT_POWER_CHANGE);
+
+	return EC_SUCCESS;
+}
+
+__override bool pd_check_vbus_level(int port, enum vbus_level level)
+{
+	int vbus_voltage;
+
+	/* If we're unable to speak to the charger, best to guess false */
+	if (charger_get_vbus_voltage(port, &vbus_voltage))
+		return false;
+
+	if (level == VBUS_SAFE0V)
+		return vbus_voltage < PD_V_SAFE0V_MAX;
+	else if (level == VBUS_PRESENT)
+		return vbus_voltage > PD_V_SAFE5V_MIN;
+	else
+		return vbus_voltage < PD_V_SINK_DISCONNECT_MAX;
+}
+
+int pd_snk_is_vbus_provided(int port)
+{
+	return sm5803_is_vbus_present(port);
+}