berknip: Initial EC image

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

(Auto-Generated by create_initial_ec_image.sh version 1.0.2).

BUG=None
BRANCH=none
TEST=make BOARD=berknip

Signed-off-by: Zick Wei <zick.wei@quanta.corp-partner.google.com>
Change-Id: Ie58af943edd5c381bf145a555cec5c1f300ef158
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2167130
Reviewed-by: Edward Hill <ecgh@chromium.org>
Reviewed-by: Denis Brockus <dbrockus@chromium.org>
Commit-Queue: Edward Hill <ecgh@chromium.org>
Commit-Queue: Denis Brockus <dbrockus@chromium.org>

8 files changed, 868 insertions, 0 deletions

diff --git a/board/berknip/analyzestack.yaml b/board/berknip/analyzestack.yaml
new file mode 100644
index 0000000000..7ff5f39644
--- /dev/null
+++ b/board/berknip/analyzestack.yaml
@@ -0,0 +1,2 @@
+remove:
+- panic_assert_fail
diff --git a/board/berknip/battery.c b/board/berknip/battery.c
new file mode 100644
index 0000000000..56c8c7f9af
--- /dev/null
+++ b/board/berknip/battery.c
@@ -0,0 +1,65 @@
+/* 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 "common.h"
+#include "util.h"
+
+/*
+ * Battery info for all Berknip 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[] = {
+	/* AP18F4M */
+	[BATTERY_AP18F4M] = {
+		.fuel_gauge = {
+			.manuf_name = "Murata KT00404001",
+			.ship_mode = {
+				.reg_addr = 0x3A,
+				.reg_data = { 0xC574, 0xC574 },
+			},
+			.fet = {
+				.reg_addr = 0x0,
+				.reg_mask = 0x2000,
+				.disconnect_val = 0x2000,
+			}
+		},
+		.batt_info = {
+			.voltage_max          = 8700,
+			.voltage_normal       = 7600,
+			.voltage_min          = 5500,
+			.precharge_current    = 256,
+			.start_charging_min_c = 0,
+			.start_charging_max_c = 50,
+			.charging_min_c       = 0,
+			.charging_max_c       = 60,
+			.discharging_min_c    = -20,
+			.discharging_max_c    = 75,
+		},
+	},
+};
+BUILD_ASSERT(ARRAY_SIZE(board_battery_info) == BATTERY_TYPE_COUNT);
+
+const enum battery_type DEFAULT_BATTERY_TYPE = BATTERY_AP18F4M;
diff --git a/board/berknip/board.c b/board/berknip/board.c
new file mode 100644
index 0000000000..ea6ad978d1
--- /dev/null
+++ b/board/berknip/board.c
@@ -0,0 +1,370 @@
+/* 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.
+ */
+
+/* Berknip board configuration */
+
+#include "button.h"
+#include "cbi_ec_fw_config.h"
+#include "driver/accelgyro_bmi_common.h"
+#include "driver/accel_kionix.h"
+#include "driver/accel_kx022.h"
+#include "driver/retimer/pi3dpx1207.h"
+#include "driver/retimer/ps8811.h"
+#include "driver/usb_mux/amd_fp5.h"
+#include "extpower.h"
+#include "fan.h"
+#include "fan_chip.h"
+#include "gpio.h"
+#include "hooks.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 "task.h"
+#include "usb_charge.h"
+#include "usb_mux.h"
+
+#include "gpio_list.h"
+
+#define CPRINTSUSB(format, args...) cprints(CC_USBCHARGE, format, ## args)
+#define CPRINTFUSB(format, args...) cprintf(CC_USBCHARGE, format, ## args)
+
+#ifdef HAS_TASK_MOTIONSENSE
+
+/* Motion sensors */
+static struct mutex g_lid_mutex;
+static struct mutex g_base_mutex;
+
+/* sensor private data */
+static struct kionix_accel_data g_kx022_data;
+static struct bmi_drv_data_t g_bmi160_data;
+
+/* TODO(gcc >= 5.0) Remove the casts to const pointer at rot_standard_ref */
+struct motion_sensor_t motion_sensors[] = {
+	[LID_ACCEL] = {
+	 .name = "Lid Accel",
+	 .active_mask = SENSOR_ACTIVE_S0_S3,
+	 .chip = MOTIONSENSE_CHIP_KX022,
+	 .type = MOTIONSENSE_TYPE_ACCEL,
+	 .location = MOTIONSENSE_LOC_LID,
+	 .drv = &kionix_accel_drv,
+	 .mutex = &g_lid_mutex,
+	 .drv_data = &g_kx022_data,
+	 .port = I2C_PORT_SENSOR,
+	 .i2c_spi_addr_flags = KX022_ADDR1_FLAGS,
+	 .rot_standard_ref = NULL,
+	 .default_range = 2, /* g, enough for laptop. */
+	 .min_frequency = KX022_ACCEL_MIN_FREQ,
+	 .max_frequency = KX022_ACCEL_MAX_FREQ,
+	 .config = {
+		 /* EC use accel for angle detection */
+		 [SENSOR_CONFIG_EC_S0] = {
+			.odr = 10000 | ROUND_UP_FLAG,
+			.ec_rate = 100,
+		 },
+		/* EC use accel for angle detection */
+		[SENSOR_CONFIG_EC_S3] = {
+			.odr = 10000 | ROUND_UP_FLAG,
+		},
+	 },
+	},
+
+	[BASE_ACCEL] = {
+	 .name = "Base Accel",
+	 .active_mask = SENSOR_ACTIVE_S0_S3,
+	 .chip = MOTIONSENSE_CHIP_BMI160,
+	 .type = MOTIONSENSE_TYPE_ACCEL,
+	 .location = MOTIONSENSE_LOC_BASE,
+	 .drv = &bmi160_drv,
+	 .mutex = &g_base_mutex,
+	 .drv_data = &g_bmi160_data,
+	 .port = I2C_PORT_SENSOR,
+	 .i2c_spi_addr_flags = BMI160_ADDR0_FLAGS,
+	 .default_range = 2, /* g, enough for laptop */
+	 .rot_standard_ref = NULL,
+	 .min_frequency = BMI_ACCEL_MIN_FREQ,
+	 .max_frequency = BMI_ACCEL_MAX_FREQ,
+	 .config = {
+		 /* EC use accel for angle detection */
+		 [SENSOR_CONFIG_EC_S0] = {
+			.odr = 10000 | ROUND_UP_FLAG,
+			.ec_rate = 100,
+		 },
+		 /* EC use accel for angle detection */
+		 [SENSOR_CONFIG_EC_S3] = {
+			.odr = 10000 | ROUND_UP_FLAG,
+		 },
+	 },
+	},
+
+	[BASE_GYRO] = {
+	 .name = "Base Gyro",
+	 .active_mask = SENSOR_ACTIVE_S0_S3,
+	 .chip = MOTIONSENSE_CHIP_BMI160,
+	 .type = MOTIONSENSE_TYPE_GYRO,
+	 .location = MOTIONSENSE_LOC_BASE,
+	 .drv = &bmi160_drv,
+	 .mutex = &g_base_mutex,
+	 .drv_data = &g_bmi160_data,
+	 .port = I2C_PORT_SENSOR,
+	 .i2c_spi_addr_flags = BMI160_ADDR0_FLAGS,
+	 .default_range = 1000, /* dps */
+	 .rot_standard_ref = NULL,
+	 .min_frequency = BMI_GYRO_MIN_FREQ,
+	 .max_frequency = BMI_GYRO_MAX_FREQ,
+	},
+};
+
+unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);
+
+#endif /* HAS_TASK_MOTIONSENSE */
+
+const struct pwm_t pwm_channels[] = {
+	[PWM_CH_KBLIGHT] = {
+		.channel = 3,
+		.flags = PWM_CONFIG_DSLEEP,
+		.freq = 100,
+	},
+	[PWM_CH_FAN] = {
+		.channel = 2,
+		.flags = PWM_CONFIG_OPEN_DRAIN,
+		.freq = 25000,
+	},
+};
+BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);
+
+/* MFT channels. These are logically separate from pwm_channels. */
+const struct mft_t mft_channels[] = {
+	[MFT_CH_0] = {
+		.module = NPCX_MFT_MODULE_1,
+		.clk_src = TCKC_LFCLK,
+		.pwm_id = PWM_CH_FAN,
+	},
+};
+BUILD_ASSERT(ARRAY_SIZE(mft_channels) == MFT_CH_COUNT);
+
+/*****************************************************************************
+ * USB-A Retimer tuning
+ */
+#define PS8811_ACCESS_RETRIES 2
+
+/* PS8811 gain tuning */
+static void ps8811_tuning_init(void)
+{
+	int rv;
+	int retry;
+
+	/* Turn on the retimers */
+	ioex_set_level(IOEX_USB_A0_RETIMER_EN, 1);
+	ioex_set_level(IOEX_USB_A1_RETIMER_EN, 1);
+
+	/* USB-A0 can run with default settings */
+	for (retry = 0; retry < PS8811_ACCESS_RETRIES; ++retry) {
+		int val;
+
+		rv = i2c_read8(I2C_PORT_USBA0,
+				PS8811_I2C_ADDR_FLAGS + PS8811_REG_PAGE1,
+				PS8811_REG1_USB_BEQ_LEVEL, &val);
+		if (!rv)
+			break;
+	}
+	if (rv) {
+		ioex_set_level(IOEX_USB_A0_RETIMER_EN, 0);
+		CPRINTSUSB("C0: PS8811 not detected");
+	}
+
+	/* USB-A1 needs to increase gain to get over MB/DB connector */
+	for (retry = 0; retry < PS8811_ACCESS_RETRIES; ++retry) {
+		rv = i2c_write8(I2C_PORT_USBA1,
+				PS8811_I2C_ADDR_FLAGS + PS8811_REG_PAGE1,
+				PS8811_REG1_USB_BEQ_LEVEL,
+				PS8811_BEQ_I2C_LEVEL_UP_13DB |
+				PS8811_BEQ_PIN_LEVEL_UP_18DB);
+		if (!rv)
+			break;
+	}
+	if (rv) {
+		ioex_set_level(IOEX_USB_A1_RETIMER_EN, 0);
+		CPRINTSUSB("C1: PS8811 not detected");
+	}
+}
+DECLARE_HOOK(HOOK_CHIPSET_STARTUP, ps8811_tuning_init, HOOK_PRIO_DEFAULT);
+
+static void ps8811_retimer_off(void)
+{
+	/* Turn on the retimers */
+	ioex_set_level(IOEX_USB_A0_RETIMER_EN, 0);
+	ioex_set_level(IOEX_USB_A1_RETIMER_EN, 0);
+}
+DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, ps8811_retimer_off, HOOK_PRIO_DEFAULT);
+
+/*****************************************************************************
+ * USB-C MUX/Retimer dynamic configuration
+ */
+static void setup_mux(void)
+{
+	if (ec_config_has_usbc1_retimer_ps8802()) {
+		ccprints("C1 PS8802 detected");
+
+		/*
+		 * Main MUX is PS8802, secondary MUX is modified FP5
+		 *
+		 * Replace usb_muxes[USBC_PORT_C1] with the PS8802
+		 * table entry.
+		 */
+		memcpy(&usb_muxes[USBC_PORT_C1],
+		       &usbc1_ps8802,
+		       sizeof(struct usb_mux));
+
+		/* Set the AMD FP5 as the secondary MUX */
+		usb_muxes[USBC_PORT_C1].next_mux = &usbc1_amd_fp5_usb_mux;
+
+		/* Don't have the AMD FP5 flip */
+		usbc1_amd_fp5_usb_mux.flags = USB_MUX_FLAG_SET_WITHOUT_FLIP;
+
+	} else if (ec_config_has_usbc1_retimer_ps8818()) {
+		ccprints("C1 PS8818 detected");
+
+		/*
+		 * Main MUX is FP5, secondary MUX is PS8818
+		 *
+		 * Replace usb_muxes[USBC_PORT_C1] with the AMD FP5
+		 * table entry.
+		 */
+		memcpy(&usb_muxes[USBC_PORT_C1],
+		       &usbc1_amd_fp5_usb_mux,
+		       sizeof(struct usb_mux));
+
+		/* Set the PS8818 as the secondary MUX */
+		usb_muxes[USBC_PORT_C1].next_mux = &usbc1_ps8818;
+	}
+}
+
+/* TODO(b:151232257) Remove probe code when hardware supports CBI */
+#include "driver/retimer/ps8802.h"
+#include "driver/retimer/ps8818.h"
+static void probe_setup_mux_backup(void)
+{
+	if (usb_muxes[USBC_PORT_C1].driver != NULL)
+		return;
+
+	/*
+	 * Identifying a PS8818 is faster than the PS8802,
+	 * so do it first.
+	 */
+	if (ps8818_detect(&usbc1_ps8818) == EC_SUCCESS) {
+		set_cbi_fw_config(0x00004000);
+		setup_mux();
+	} else if (ps8802_detect(&usbc1_ps8802) == EC_SUCCESS) {
+		set_cbi_fw_config(0x00004001);
+		setup_mux();
+	}
+}
+DECLARE_HOOK(HOOK_CHIPSET_STARTUP, probe_setup_mux_backup, HOOK_PRIO_DEFAULT);
+
+const struct pi3dpx1207_usb_control pi3dpx1207_controls[] = {
+	[USBC_PORT_C0] = {
+		.enable_gpio = IOEX_USB_C0_DATA_EN,
+		.dp_enable_gpio = GPIO_USB_C0_IN_HPD,
+	},
+	[USBC_PORT_C1] = {
+	},
+};
+BUILD_ASSERT(ARRAY_SIZE(pi3dpx1207_controls) == USBC_PORT_COUNT);
+
+const struct usb_mux usbc0_pi3dpx1207_usb_retimer = {
+	.usb_port = USBC_PORT_C0,
+	.i2c_port = I2C_PORT_TCPC0,
+	.i2c_addr_flags = PI3DPX1207_I2C_ADDR_FLAGS,
+	.driver = &pi3dpx1207_usb_retimer,
+};
+
+struct usb_mux usb_muxes[] = {
+	[USBC_PORT_C0] = {
+		.usb_port = USBC_PORT_C0,
+		.i2c_port = I2C_PORT_USB_AP_MUX,
+		.i2c_addr_flags = AMD_FP5_MUX_I2C_ADDR_FLAGS,
+		.driver = &amd_fp5_usb_mux_driver,
+		.next_mux = &usbc0_pi3dpx1207_usb_retimer,
+	},
+	[USBC_PORT_C1] = {
+		/* Filled in dynamically at startup */
+	},
+};
+BUILD_ASSERT(ARRAY_SIZE(usb_muxes) == USBC_PORT_COUNT);
+
+/*****************************************************************************
+ * Use FW_CONFIG to set correct configuration.
+ */
+
+void setup_fw_config(void)
+{
+	/* Enable Gyro interrupts */
+	gpio_enable_interrupt(GPIO_6AXIS_INT_L);
+
+	setup_mux();
+}
+DECLARE_HOOK(HOOK_INIT, setup_fw_config, HOOK_PRIO_INIT_I2C + 2);
+
+/*****************************************************************************
+ * Fan
+ */
+
+/* Physical fans. These are logically separate from pwm_channels. */
+const struct fan_conf fan_conf_0 = {
+	.flags = FAN_USE_RPM_MODE,
+	.ch = MFT_CH_0,	/* Use MFT id to control fan */
+	.pgood_gpio = -1,
+	.enable_gpio = -1,
+};
+const struct fan_rpm fan_rpm_0 = {
+	.rpm_min = 3100,
+	.rpm_start = 3100,
+	.rpm_max = 6900,
+};
+const struct fan_t fans[] = {
+	[FAN_CH_0] = {
+		.conf = &fan_conf_0,
+		.rpm = &fan_rpm_0,
+	},
+};
+BUILD_ASSERT(ARRAY_SIZE(fans) == FAN_CH_COUNT);
+
+const static struct ec_thermal_config thermal_thermistor = {
+	.temp_host = {
+		[EC_TEMP_THRESH_HIGH] = C_TO_K(75),
+		[EC_TEMP_THRESH_HALT] = C_TO_K(80),
+	},
+	.temp_host_release = {
+		[EC_TEMP_THRESH_HIGH] = C_TO_K(65),
+	},
+	.temp_fan_off = C_TO_K(25),
+	.temp_fan_max = C_TO_K(50),
+};
+
+const static struct ec_thermal_config thermal_cpu = {
+	.temp_host = {
+		[EC_TEMP_THRESH_HIGH] = C_TO_K(85),
+		[EC_TEMP_THRESH_HALT] = C_TO_K(95),
+	},
+	.temp_host_release = {
+		[EC_TEMP_THRESH_HIGH] = C_TO_K(65),
+	},
+	.temp_fan_off = C_TO_K(25),
+	.temp_fan_max = C_TO_K(50),
+};
+
+struct ec_thermal_config thermal_params[TEMP_SENSOR_COUNT];
+
+static void setup_fans(void)
+{
+	thermal_params[TEMP_SENSOR_CHARGER] = thermal_thermistor;
+	thermal_params[TEMP_SENSOR_SOC] = thermal_thermistor;
+	thermal_params[TEMP_SENSOR_CPU] = thermal_cpu;
+}
+DECLARE_HOOK(HOOK_INIT, setup_fans, HOOK_PRIO_DEFAULT);
diff --git a/board/berknip/board.h b/board/berknip/board.h
new file mode 100644
index 0000000000..6501b33683
--- /dev/null
+++ b/board/berknip/board.h
@@ -0,0 +1,180 @@
+/* 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.
+ */
+
+/* Berknip board configuration */
+
+#ifndef __CROS_EC_BOARD_H
+#define __CROS_EC_BOARD_H
+
+#define VARIANT_ZORK_TREMBYLE
+
+#include <stdbool.h>
+#include "baseboard.h"
+
+/*
+ * Allow dangerous commands.
+ * TODO: Remove this config before production.
+ */
+#define CONFIG_SYSTEM_UNLOCKED
+#define CONFIG_I2C_DEBUG
+
+#define CONFIG_USBC_RETIMER_PI3DPX1207
+#define CONFIG_MKBP_USE_GPIO
+
+/* Motion sensing drivers */
+#define CONFIG_ACCELGYRO_BMI160
+#define CONFIG_ACCELGYRO_BMI160_INT_EVENT \
+	TASK_EVENT_MOTION_SENSOR_INTERRUPT(BASE_ACCEL)
+#define CONFIG_ACCEL_INTERRUPTS
+#define CONFIG_ACCEL_KX022
+#define CONFIG_CMD_ACCELS
+#define CONFIG_CMD_ACCEL_INFO
+#define CONFIG_TABLET_MODE
+#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
+
+/* GPIO mapping from board specific name to EC common name. */
+#define CONFIG_BATTERY_PRESENT_GPIO	GPIO_EC_BATT_PRES_ODL
+#define CONFIG_SCI_GPIO			GPIO_EC_FCH_SCI_ODL
+#define GPIO_AC_PRESENT			GPIO_ACOK_OD
+#define GPIO_CPU_PROCHOT		GPIO_PROCHOT_ODL
+#define GPIO_EC_INT_L			GPIO_EC_AP_INT_ODL
+#define GPIO_ENABLE_BACKLIGHT_L		GPIO_EC_EDP_BL_DISABLE
+#define GPIO_ENTERING_RW		GPIO_EC_ENTERING_RW
+#define GPIO_KBD_KSO2			GPIO_EC_KSO_02_INV
+#define GPIO_PCH_PWRBTN_L		GPIO_EC_FCH_PWR_BTN_L
+#define GPIO_PCH_RSMRST_L		GPIO_EC_FCH_RSMRST_L
+#define GPIO_PCH_SLP_S3_L		GPIO_SLP_S3_L
+#define GPIO_PCH_SLP_S5_L		GPIO_SLP_S5_L
+#define GPIO_PCH_SYS_PWROK		GPIO_EC_FCH_PWROK
+#define GPIO_PCH_WAKE_L			GPIO_EC_FCH_WAKE_L
+#define GPIO_POWER_BUTTON_L		GPIO_EC_PWR_BTN_ODL
+#define GPIO_S0_PGOOD			GPIO_S0_PWROK_OD
+#define GPIO_S5_PGOOD			GPIO_EC_PWROK_OD
+#define GPIO_SYS_RESET_L		GPIO_EC_SYS_RST_L
+#define GPIO_VOLUME_DOWN_L		GPIO_VOLDN_BTN_ODL
+#define GPIO_VOLUME_UP_L		GPIO_VOLUP_BTN_ODL
+#define GPIO_WP_L			GPIO_EC_WP_L
+
+#ifndef __ASSEMBLER__
+
+enum battery_type {
+	BATTERY_AP18F4M,
+	BATTERY_TYPE_COUNT,
+};
+
+enum mft_channel {
+	MFT_CH_0 = 0,
+	/* Number of MFT channels */
+	MFT_CH_COUNT,
+};
+
+enum pwm_channel {
+	PWM_CH_KBLIGHT = 0,
+	PWM_CH_FAN,
+	PWM_CH_COUNT
+};
+
+
+/*****************************************************************************
+ * CBI EC FW Configuration
+ */
+#include "cbi_ec_fw_config.h"
+
+/**
+ * BERKNIP_MB_USBAC
+ *	USB-A0  Speed: 10 Gbps
+ *		Retimer: PS8811
+ *	USB-C0  Speed: 10 Gbps
+ *		Retimer: PI3DPX1207
+ *		TCPC: NCT3807
+ *		PPC: AOZ1380
+ *		IOEX: TCPC
+ */
+enum ec_cfg_usb_mb_type {
+	BERKNIP_MB_USBAC = 0,
+};
+
+/**
+ * BERKNIP_DB_T_OPT1_USBAC_HMDI
+ *	USB-A1  Speed: 10 Gbps
+ *		Retimer: PS8811
+ *	USB-C1  Speed: 10 Gbps
+ *		Retimer: PS8818
+ *		TCPC: NCT3807
+ *		PPC: NX20P3483
+ *		IOEX: TCPC
+ *	HDMI    Exists: yes
+ *		Retimer: PI3HDX1204
+ *		MST Hub: none
+ *
+ * BERKNIP_DB_T_OPT2_USBAC
+ *	USB-A1  Speed: 10 Gbps
+ *		Retimer: PS8811
+ *	USB-C1  Speed: 10 Gbps
+ *		Retimer: PS8802
+ *		TCPC: NCT3807
+ *		PPC: NX20P3483
+ *		IOEX: TCPC
+ *	HDMI    Exists: no
+ *		Retimer: none
+ *		MST Hub: none
+ *
+ * BERKNIP_DB_T_OPT3_USBAC_HDMI_MSTHUB
+ *	USB-A1  Speed: 10 Gbps
+ *		Retimer: PS8811
+ *	USB-C1  Speed: 10 Gbps
+ *		Retimer: PS8802
+ *		TCPC: NCT3807
+ *		PPC: NX20P3483
+ *		IOEX: TCPC
+ *	HDMI    Exists: yes
+ *		Retimer: none
+ *		MST Hub: RTD2141B
+ */
+enum ec_cfg_usb_db_type {
+	BERKNIP_DB_T_OPT1_USBAC_HMDI = 0,
+	BERKNIP_DB_T_OPT2_USBAC = 1,
+	BERKNIP_DB_T_OPT3_USBAC_HDMI_MSTHUB = 2,
+};
+
+
+#define HAS_USBC1_RETIMER_PS8802 \
+			(BIT(BERKNIP_DB_T_OPT2_USBAC) | \
+			 BIT(BERKNIP_DB_T_OPT3_USBAC_HDMI_MSTHUB))
+
+static inline bool ec_config_has_usbc1_retimer_ps8802(void)
+{
+	return !!(BIT(ec_config_get_usb_db()) &
+		  HAS_USBC1_RETIMER_PS8802);
+}
+
+
+#define HAS_USBC1_RETIMER_PS8818 \
+			(BIT(BERKNIP_DB_T_OPT1_USBAC_HMDI))
+
+static inline bool ec_config_has_usbc1_retimer_ps8818(void)
+{
+	return !!(BIT(ec_config_get_usb_db()) &
+		  HAS_USBC1_RETIMER_PS8818);
+}
+
+
+#define PORT_TO_HPD(port) ((port == 0) \
+	? GPIO_USB_C0_HPD \
+	: (ec_config_has_usbc1_retimer_ps8802()) \
+		? GPIO_DP1_HPD \
+		: GPIO_DP2_HPD)
+
+extern const struct usb_mux usbc0_pi3dpx1207_usb_retimer;
+extern const struct usb_mux usbc1_ps8802;
+extern const struct usb_mux usbc1_ps8818;
+extern struct usb_mux usbc1_amd_fp5_usb_mux;
+
+#endif /* !__ASSEMBLER__ */
+
+#endif /* __CROS_EC_BOARD_H */
diff --git a/board/berknip/build.mk b/board/berknip/build.mk
new file mode 100644
index 0000000000..1c0cbc4f63
--- /dev/null
+++ b/board/berknip/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:=npcx
+CHIP_FAMILY:=npcx7
+CHIP_VARIANT:=npcx7m7wc
+BASEBOARD:=zork
+
+board-y=board.o led.o
+board-$(CONFIG_BATTERY_SMART)+=battery.o
diff --git a/board/berknip/ec.tasklist b/board/berknip/ec.tasklist
new file mode 100644
index 0000000000..d5161cda0f
--- /dev/null
+++ b/board/berknip/ec.tasklist
@@ -0,0 +1,26 @@
+/* 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, LARGER_TASK_STACK_SIZE) \
+	TASK_ALWAYS(USB_CHG_P0, usb_charger_task, 0, TASK_STACK_SIZE) \
+	TASK_ALWAYS(USB_CHG_P1, usb_charger_task, 1, TASK_STACK_SIZE) \
+	TASK_ALWAYS(CHARGER, charger_task, NULL, VENTI_TASK_STACK_SIZE) \
+	TASK_ALWAYS(MOTIONSENSE, motion_sense_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_NOTEST(PDCMD, pd_command_task, NULL, LARGER_TASK_STACK_SIZE) \
+	TASK_ALWAYS(HOSTCMD, host_command_task, NULL, LARGER_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, VENTI_TASK_STACK_SIZE) \
+	TASK_ALWAYS(PD_C1, pd_task, NULL, VENTI_TASK_STACK_SIZE) \
+	TASK_ALWAYS(PD_INT_C0, pd_interrupt_handler_task, 0, TASK_STACK_SIZE) \
+	TASK_ALWAYS(PD_INT_C1, pd_interrupt_handler_task, 1, TASK_STACK_SIZE)
diff --git a/board/berknip/gpio.inc b/board/berknip/gpio.inc
new file mode 100644
index 0000000000..fa3d210207
--- /dev/null
+++ b/board/berknip/gpio.inc
@@ -0,0 +1,140 @@
+/* -*- 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. */
+
+GPIO_INT(USB_C0_TCPC_INT_ODL,	PIN(3, 4), GPIO_INT_FALLING,			tcpc_alert_event)
+GPIO_INT(USB_C1_TCPC_INT_ODL,	PIN(F, 1), GPIO_INT_FALLING,			tcpc_alert_event)
+GPIO_INT(USB_C0_PPC_FAULT_ODL,	PIN(6, 3), GPIO_INT_FALLING,			ppc_interrupt)
+GPIO_INT(USB_C1_PPC_INT_ODL,	PIN(D, 4), GPIO_INT_FALLING,			ppc_interrupt)
+GPIO_INT(USB_C0_BC12_INT_ODL,	PIN(9, 3), GPIO_INT_FALLING | GPIO_PULL_UP,	bc12_interrupt)
+GPIO_INT(USB_C1_BC12_INT_ODL, 	PIN(A, 4), GPIO_INT_FALLING | GPIO_PULL_UP,	bc12_interrupt)
+GPIO_INT(SLP_S3_L,		PIN(7, 4), GPIO_INT_BOTH,			power_signal_interrupt)
+GPIO_INT(SLP_S5_L,		PIN(E, 0), GPIO_INT_BOTH,			power_signal_interrupt)
+GPIO_INT(S0_PWROK_OD,		PIN(5, 6), GPIO_INT_BOTH,			power_signal_interrupt)
+GPIO_INT(EC_PWROK_OD,		PIN(3, 7), GPIO_INT_BOTH,			power_signal_interrupt)
+GPIO_INT(EC_PWR_BTN_ODL,	PIN(0, 1), GPIO_INT_BOTH,			power_button_interrupt)
+GPIO_INT(LID_OPEN,		PIN(D, 2), GPIO_INT_BOTH | GPIO_HIB_WAKE_HIGH,	lid_interrupt)
+GPIO_INT(ACOK_OD,		PIN(0, 0), GPIO_INT_BOTH | GPIO_HIB_WAKE_HIGH,	extpower_interrupt)
+GPIO_INT(EC_WP_L,		PIN(5, 0), GPIO_INT_BOTH,			switch_interrupt)
+GPIO_INT(VOLDN_BTN_ODL,		PIN(A, 6), GPIO_INT_BOTH | GPIO_PULL_UP,	button_interrupt)
+GPIO_INT(VOLUP_BTN_ODL,		PIN(9, 5), GPIO_INT_BOTH | GPIO_PULL_UP,	button_interrupt)
+GPIO_INT(6AXIS_INT_L,		PIN(A, 0), GPIO_INT_FALLING | GPIO_PULL_UP,	bmi160_interrupt)
+
+/* GPIO_INT_BOTH is required for PSL wake from hibernate, but we don't need an interrupt handler. */
+GPIO(EC_RST_ODL,		PIN(0, 2), GPIO_INT_BOTH | GPIO_HIB_WAKE_HIGH)
+
+GPIO(3AXIS_INT_L,		PIN(9, 6), GPIO_INPUT | GPIO_PULL_UP)		/* 3 Axis Accel */
+GPIO(CCD_MODE_ODL,		PIN(C, 6), GPIO_INPUT)				/* Case Closed Debug Mode */
+GPIO(PROCHOT_ODL,		PIN(D, 5), GPIO_ODR_HIGH)			/* PROCHOT to SOC */
+GPIO(EC_BATT_PRES_ODL,		PIN(4, 1), GPIO_INPUT)				/* Battery Present */
+GPIO(EC_AP_INT_ODL,		PIN(A, 3), GPIO_ODR_HIGH)			/* Sensor MKBP event to SOC */
+GPIO(EN_PWR_A,			PIN(B, 7), GPIO_OUT_LOW)			/* Enable Power */
+GPIO(EC_EDP_BL_DISABLE,		PIN(A, 2), GPIO_OUT_HIGH)			/* Enable Backlight */
+GPIO(EC_ENTERING_RW,		PIN(E, 5), GPIO_OUT_LOW)			/* EC Entering RW */
+GPIO(EC_FCH_PWR_BTN_L,		PIN(6, 2), GPIO_OUT_HIGH)			/* Power Button to SOC */
+GPIO(EC_FCH_RSMRST_L,		PIN(A, 1), GPIO_OUT_LOW)			/* RSMRST# to SOC */
+GPIO(EC_FCH_PWROK,		PIN(D, 3), GPIO_OUT_LOW)			/* Power OK to SOC */
+GPIO(EC_FCH_WAKE_L,		PIN(0, 3), GPIO_OUT_HIGH)			/* Wake SOC */
+GPIO(EC_FCH_SCI_ODL,		PIN(7, 6), GPIO_ODR_HIGH)			/* SCI to SOC */
+GPIO(EC_SYS_RST_L,		PIN(C, 7), GPIO_ODR_HIGH)			/* Cold Reset to SOC */
+GPIO(USB_C0_TCPC_RST_L,		PIN(E, 1), GPIO_OUT_HIGH)			/* C0 TCPC Reset */
+GPIO(USB_C1_TCPC_RST_L,		PIN(F, 0), GPIO_OUT_HIGH)			/* C1 TCPC Reset */
+GPIO(USB_C0_HPD,		PIN(F, 5), GPIO_OUT_LOW)			/* C0 DP Hotplug Detect */
+GPIO(USB_C0_IN_HPD,		PIN(7, 3), GPIO_OUT_LOW)			/* C0 IN Hotplug Detect */
+GPIO(DP1_HPD,			PIN(F, 4), GPIO_OUT_LOW)			/* C1 DP Hotplug Detect */
+GPIO(DP2_HPD,			PIN(C, 1), GPIO_OUT_LOW)			/* C1 DP Hotplug Detect */
+GPIO(EC_H1_PACKET_MODE,		PIN(8, 6), GPIO_OUT_LOW)			/* H1 Packet Mode */
+
+UNIMPLEMENTED(PCH_SMI_L)
+
+GPIO(LED_FULL_L,		PIN(6, 0), GPIO_OUT_HIGH)
+GPIO(LED_CHRG_L,		PIN(C, 0), GPIO_OUT_HIGH)
+
+IOEX_INT(HDMI_CONN_HPD_3V3_DB,	EXPIN(USBC_PORT_C1, 1, 0), GPIO_INT_BOTH,	hdmi_hpd_interrupt)
+IOEX_INT(MST_HPD_OUT,		EXPIN(USBC_PORT_C1, 0, 3), GPIO_INT_BOTH,	mst_hpd_interrupt)
+
+IOEX(USB_A0_RETIMER_EN,		EXPIN(USBC_PORT_C0, 0, 0), GPIO_OUT_LOW)	/* A0 Retimer Enable */
+IOEX(USB_A0_RETIMER_RST,	EXPIN(USBC_PORT_C0, 0, 1), GPIO_OUT_LOW)	/* A0 Retimer Reset */
+IOEX(USB_C0_FAULT_ODL,		EXPIN(USBC_PORT_C0, 0, 3), GPIO_ODR_HIGH)	/* C0 Fault to SOC */
+IOEX(USB_C0_TCPC_FASTSW_CTL_EN,	EXPIN(USBC_PORT_C0, 0, 4), GPIO_OUT_LOW)	/* C0 FastSwitch Control */
+IOEX(USB_C1_FAULT_ODL,		EXPIN(USBC_PORT_C0, 1, 0), GPIO_ODR_HIGH)	/* C1 Fault to SOC */
+IOEX(USB_C0_PPC_ILIM_3A_EN,	EXPIN(USBC_PORT_C0, 1, 1), GPIO_OUT_LOW)	/* C0 3A Current Limit Enable */
+IOEX(USB_C0_SBU_FAULT_ODL,	EXPIN(USBC_PORT_C0, 1, 2), GPIO_INPUT)		/* C0 SBU Fault */
+IOEX(KB_BL_EN,			EXPIN(USBC_PORT_C0, 1, 3), GPIO_OUT_LOW)	/* KB Backlight Enable */
+IOEX(USB_C0_DATA_EN,		EXPIN(USBC_PORT_C0, 1, 4), GPIO_OUT_LOW)	/* C0 Data Enable */
+IOEX(EN_USB_A0_5V,		EXPIN(USBC_PORT_C0, 1, 5), GPIO_OUT_LOW)	/* A0 5V Source Enable */
+IOEX(USB_A0_CHARGE_EN_L,	EXPIN(USBC_PORT_C0, 1, 6), GPIO_OUT_HIGH)	/* A0 5V High Current Enable */
+
+IOEX(USB_A1_RETIMER_EN,		EXPIN(USBC_PORT_C1, 0, 0), GPIO_OUT_LOW)	/* A1 Retimer Enable */
+IOEX(USB_A1_RETIMER_RST_DB,	EXPIN(USBC_PORT_C1, 0, 1), GPIO_OUT_LOW)	/* A1 Retimer Reset */
+IOEX(USB_C1_HPD_IN_DB,		EXPIN(USBC_PORT_C1, 0, 2), GPIO_OUT_LOW)	/* C1 HPD */
+IOEX(USB_C1_TCPC_FASTSW_CTL_EN,	EXPIN(USBC_PORT_C1, 0, 4), GPIO_OUT_LOW)	/* C1 FastSwitch Control */
+IOEX(USB_C1_MUX_RST_DB,		EXPIN(USBC_PORT_C1, 1, 1), GPIO_OUT_LOW)	/* C1 Mux Reset */
+IOEX(USB_C1_SBU_FAULT_DB_ODL,	EXPIN(USBC_PORT_C1, 1, 2), GPIO_INPUT)		/* C1 SBU Fault */
+IOEX(USB_C1_PPC_EN_L,		EXPIN(USBC_PORT_C1, 1, 3), GPIO_OUT_LOW)	/* C1 PPC Enable */
+IOEX(HDMI_DATA_EN_DB,		EXPIN(USBC_PORT_C1, 1, 4), GPIO_OUT_HIGH)	/* HDMI Retimer Enable */
+IOEX(USB_C1_DATA_EN,		EXPIN(USBC_PORT_C1, 1, 5), GPIO_OUT_HIGH)	/* C1 Retimer Enable */
+IOEX(EN_USB_A1_5V_DB,		EXPIN(USBC_PORT_C1, 1, 6), GPIO_OUT_LOW)	/* A1 5V Source Enable */
+IOEX(USB_A1_CHARGE_EN_DB_L,	EXPIN(USBC_PORT_C1, 1, 7), GPIO_OUT_HIGH)	/* A1 5V High Current Enable */
+
+/*
+ * The NPCX LPC driver configures and controls SCI, so PCH_SCI_ODL [PIN(7, 6)]
+ * is not defined here as GPIO.
+ */
+
+/* I2C pins - these will be reconfigured for alternate function below */
+GPIO(EC_I2C_USB_A0_C0_SCL,	PIN(B, 5), GPIO_INPUT)
+GPIO(EC_I2C_USB_A0_C0_SDA,	PIN(B, 4), GPIO_INPUT)
+GPIO(EC_I2C_USB_A1_C1_SCL,	PIN(9, 0), GPIO_INPUT)
+GPIO(EC_I2C_USB_A1_C1_SDA,	PIN(8, 7), GPIO_INPUT)
+GPIO(EC_I2C_BATT_SCL,		PIN(9, 2), GPIO_INPUT)
+GPIO(EC_I2C_BATT_SDA,		PIN(9, 1), GPIO_INPUT)
+GPIO(EC_I2C_USBC_AP_MUX_SCL,	PIN(D, 1), GPIO_INPUT)
+GPIO(EC_I2C_USBC_AP_MUX_SDA,	PIN(D, 0), GPIO_INPUT)
+GPIO(FCH_SIC_POWER_SCL,		PIN(F, 3), GPIO_INPUT)
+GPIO(FCH_SID_POWER_SDA,		PIN(F, 2), GPIO_INPUT)
+GPIO(EC_I2C_SENSOR_CBI_SCL,	PIN(3, 3), GPIO_INPUT)
+GPIO(EC_I2C_SENSOR_CBI_SDA,	PIN(3, 6), GPIO_INPUT)
+GPIO(FCH_I2C_AUDIO_SCL,		PIN(E, 4), GPIO_INPUT | GPIO_SEL_1P8V)
+GPIO(FCH_I2C_AUDIO_SDA,		PIN(E, 3), GPIO_INPUT | GPIO_SEL_1P8V)
+GPIO(FCH_I2C_HDMI_HUB_3V3_SCL,	PIN(B, 3), GPIO_INPUT)
+GPIO(FCH_I2C_HDMI_HUB_3V3_SDA,	PIN(B, 2), GPIO_INPUT)
+
+ALTERNATE(PIN_MASK(6, BIT(4) | BIT(5)), 0, MODULE_UART, 0) /* Cr50 requires no pullups. */
+
+ALTERNATE(PIN_MASK(B, BIT(4) | BIT(5)), 0, MODULE_I2C, 0)			/* I2C0 */
+ALTERNATE(PIN_MASK(9, BIT(0) | BIT(1) | BIT(2)), 0, MODULE_I2C, 0)		/* I2C1 SCL / I2C2 */
+ALTERNATE(PIN_MASK(8, BIT(7)), 0, MODULE_I2C, 0)				/* I2C1 SDA */
+ALTERNATE(PIN_MASK(D, BIT(0) | BIT(1)), 0, MODULE_I2C, 0)			/* I2C3 */
+ALTERNATE(PIN_MASK(F, BIT(2) | BIT(3)), 0, MODULE_I2C, 0)			/* I2C4 */
+ALTERNATE(PIN_MASK(3, BIT(3) | BIT(6)), 0, MODULE_I2C, 0)			/* I2C5 */
+ALTERNATE(PIN_MASK(E, BIT(3) | BIT(4)), 0, MODULE_I2C, 0)			/* I2C6 */
+ALTERNATE(PIN_MASK(B, BIT(2) | BIT(3)), 0, MODULE_I2C, 0)			/* I2C7 */
+
+ALTERNATE(PIN_MASK(4, BIT(2) | BIT(3)), 0, MODULE_ADC, 0)			/* ADC2, ADC3 Temp Sensors */
+
+ALTERNATE(PIN_MASK(C, BIT(3)), 0, MODULE_PWM, 0)				/* PWM0 LED */
+ALTERNATE(PIN_MASK(C, BIT(4)), 0, MODULE_PWM, 0)				/* PWM2 - EC_FAN_PWM */
+ALTERNATE(PIN_MASK(8, BIT(0)), 0, MODULE_PWM, 0)				/* PWM3 KB Backlight */
+ALTERNATE(PIN_MASK(4, BIT(0)), 0, MODULE_PWM, 0)				/* TA1 - EC_FAN_SPEED */
+
+ALTERNATE(PIN_MASK(3, 0x03), 0, MODULE_KEYBOARD_SCAN, GPIO_INPUT)		/* KSI_00-01 */
+ALTERNATE(PIN_MASK(2, 0xFC), 0, MODULE_KEYBOARD_SCAN, GPIO_INPUT)		/* KSI_02-07 */
+ALTERNATE(PIN_MASK(2, 0x03), 0, MODULE_KEYBOARD_SCAN, GPIO_ODR_HIGH)		/* KSO_00-01 */
+GPIO(EC_KSO_02_INV, PIN(1, 7), GPIO_OUT_LOW)					/* KSO_02 inverted */
+ALTERNATE(PIN_MASK(1, 0x7F), 0, MODULE_KEYBOARD_SCAN, GPIO_ODR_HIGH)		/* KSO_03-09 */
+ALTERNATE(PIN_MASK(0, 0xE0), 0, MODULE_KEYBOARD_SCAN, GPIO_ODR_HIGH)		/* KSO_10-12 */
+
+/* Power Switch Logic (PSL) inputs */
+ALTERNATE(PIN_MASK(0, BIT(0) | BIT(1) | BIT(2)), 0, MODULE_PMU, 0)		/* AC_PRESENT, POWER_BUTTON_L, EC_RST_ODL */
+ALTERNATE(PIN_MASK(D, BIT(2)), 0, MODULE_PMU, 0)				/* LID_OPEN */
+
+ALTERNATE(PIN_MASK(A, 0xA0), 1,  MODULE_WOV, 0) 				/* I2S_SYNC/I2S_SCLK  GPIOA5/A7 */
+ALTERNATE(PIN_MASK(B, 0x01), 1,  MODULE_WOV, 0) 				/* I2S_SDAT           GPIOB0    */
+ALTERNATE(PIN_MASK(9, 0x90), 1,  MODULE_WOV, 0) 				/* DMIC_CLK/DMIC_IN   GPIO94/97 */
diff --git a/board/berknip/led.c b/board/berknip/led.c
new file mode 100644
index 0000000000..f675dd52f0
--- /dev/null
+++ b/board/berknip/led.c
@@ -0,0 +1,70 @@
+/* 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 "ec_commands.h"
+#include "gpio.h"
+#include "led_common.h"
+#include "led_onoff_states.h"
+
+#define LED_OFF_LVL	1
+#define LED_ON_LVL	0
+
+const int led_charge_lvl_1;
+const int led_charge_lvl_2 = 100;
+
+struct led_descriptor led_bat_state_table[LED_NUM_STATES][LED_NUM_PHASES] = {
+	[STATE_CHARGING_LVL_1]       = {{EC_LED_COLOR_BLUE, 2 * LED_ONE_SEC},
+					{EC_LED_COLOR_RED,  2 * LED_ONE_SEC} },
+	[STATE_CHARGING_LVL_2]	     = {{EC_LED_COLOR_RED,  LED_INDEFINITE} },
+	[STATE_CHARGING_FULL_CHARGE] = {{EC_LED_COLOR_BLUE, LED_INDEFINITE} },
+	[STATE_DISCHARGE_S0]	     = {{EC_LED_COLOR_BLUE, LED_INDEFINITE} },
+	[STATE_DISCHARGE_S3]	     = {{EC_LED_COLOR_RED,  1 * LED_ONE_SEC},
+					{LED_OFF,           3 * LED_ONE_SEC} },
+	[STATE_DISCHARGE_S5]         = {{LED_OFF,           LED_INDEFINITE} },
+	[STATE_BATTERY_ERROR]        = {{EC_LED_COLOR_BLUE, 2 * LED_ONE_SEC},
+					{EC_LED_COLOR_RED,  2 * LED_ONE_SEC} },
+	[STATE_FACTORY_TEST]         = {{EC_LED_COLOR_BLUE, LED_INDEFINITE} },
+};
+BUILD_ASSERT(ARRAY_SIZE(led_bat_state_table) == LED_NUM_STATES);
+
+const enum ec_led_id supported_led_ids[] = { EC_LED_ID_BATTERY_LED };
+
+const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids);
+
+void led_set_color_battery(enum ec_led_colors color)
+{
+	switch (color) {
+	case EC_LED_COLOR_BLUE:
+		gpio_set_level(GPIO_LED_FULL_L, LED_ON_LVL);
+		gpio_set_level(GPIO_LED_CHRG_L, LED_OFF_LVL);
+		break;
+	case EC_LED_COLOR_RED:
+		gpio_set_level(GPIO_LED_FULL_L, LED_OFF_LVL);
+		gpio_set_level(GPIO_LED_CHRG_L, LED_ON_LVL);
+		break;
+	default: /* LED_OFF and other unsupported colors */
+		gpio_set_level(GPIO_LED_FULL_L, LED_OFF_LVL);
+		gpio_set_level(GPIO_LED_CHRG_L, LED_OFF_LVL);
+		break;
+	}
+}
+
+void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range)
+{
+	brightness_range[EC_LED_COLOR_BLUE] = 1;
+	brightness_range[EC_LED_COLOR_RED] = 1;
+}
+
+int led_set_brightness(enum ec_led_id led_id, const uint8_t *brightness)
+{
+	if (brightness[EC_LED_COLOR_BLUE] != 0)
+		led_set_color_battery(EC_LED_COLOR_BLUE);
+	else if (brightness[EC_LED_COLOR_RED] != 0)
+		led_set_color_battery(EC_LED_COLOR_RED);
+	else
+		led_set_color_battery(LED_OFF);
+
+	return EC_SUCCESS;
+}