ish: Trim down the release branchstabilize-wristpin-14469.59.B-ishstabilize-voshyr-14637.B-ishstabilize-quickfix-14695.187.B-ishstabilize-quickfix-14695.124.B-ishstabilize-quickfix-14526.91.B-ishstabilize-14695.85.B-ishstabilize-14695.107.B-ishstabilize-14682.B-ishstabilize-14633.B-ishstabilize-14616.B-ishstabilize-14589.B-ishstabilize-14588.98.B-ishstabilize-14588.14.B-ishstabilize-14588.123.B-ishstabilize-14536.B-ishstabilize-14532.B-ishstabilize-14528.B-ishstabilize-14526.89.B-ishstabilize-14526.84.B-ishstabilize-14526.73.B-ishstabilize-14526.67.B-ishstabilize-14526.57.B-ishstabilize-14498.B-ishstabilize-14496.B-ishstabilize-14477.B-ishstabilize-14469.9.B-ishstabilize-14469.8.B-ishstabilize-14469.58.B-ishstabilize-14469.41.B-ishstabilize-14442.B-ishstabilize-14438.B-ishstabilize-14411.B-ishstabilize-14396.B-ishstabilize-14395.B-ishstabilize-14388.62.B-ishstabilize-14388.61.B-ishstabilize-14388.52.B-ishstabilize-14385.B-ishstabilize-14345.B-ishstabilize-14336.B-ishstabilize-14333.B-ishrelease-R99-14469.B-ishrelease-R98-14388.B-ishrelease-R102-14695.B-ishrelease-R101-14588.B-ishrelease-R100-14526.B-ishfirmware-cherry-14454.B-ishfirmware-brya-14505.B-ishfirmware-brya-14505.71.B-ishfactory-kukui-14374.B-ishfactory-guybrush-14600.B-ishfactory-cherry-14455.B-ishfactory-brya-14517.B-ish

In the interest of making long-term branch maintenance incur as little
technical debt on us as possible, we should not maintain any files on
the branch we are not actually using.

This has the added effect of making it extremely clear when merging CLs
from the main branch when changes have the possibility to affect us.

The follow-on CL adds a convenience script to actually pull updates from
the main branch and generate a CL for the update.

BUG=b:204206272
BRANCH=ish
TEST=make BOARD=arcada_ish && make BOARD=drallion_ish

Signed-off-by: Jack Rosenthal <jrosenth@chromium.org>
Change-Id: I17e4694c38219b5a0823e0a3e55a28d1348f4b18
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3262038
Reviewed-by: Jett Rink <jettrink@chromium.org>
Reviewed-by: Tom Hughes <tomhughes@chromium.org>

9 files changed, 0 insertions, 1663 deletions

diff --git a/board/homestar/base_detect.c b/board/homestar/base_detect.c
deleted file mode 100644
index b08784357b..0000000000
--- a/board/homestar/base_detect.c
+++ /dev/null
@@ -1,234 +0,0 @@
-/* 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.
- */
-
-/* Homestar base detection code */
-
-#include "adc.h"
-#include "base_state.h"
-#include "board.h"
-#include "chipset.h"
-#include "common.h"
-#include "console.h"
-#include "gpio.h"
-#include "hooks.h"
-#include "host_command.h"
-#include "system.h"
-#include "tablet_mode.h"
-#include "timer.h"
-#include "util.h"
-
-#define CPRINTS(format, args...) cprints(CC_SYSTEM, format, ## args)
-#define CPRINTF(format, args...) cprintf(CC_SYSTEM, format, ## args)
-
-/* Make sure POGO VBUS starts later then PP3300_HUB when power on  */
-#define BASE_DETECT_EN_LATER_US (600 * MSEC)
-
-/* Base detection and debouncing */
-#define BASE_DETECT_EN_DEBOUNCE_US (350 * MSEC)
-#define BASE_DETECT_DIS_DEBOUNCE_US (20 * MSEC)
-
-/*
- * If the base status is unclear (i.e. not within expected ranges, read
- * the ADC value again every 500ms.
- */
-#define BASE_DETECT_RETRY_US (500 * MSEC)
-
-/*
- * Lid has 604K pull-up, base has 30.1K pull-down, so the
- * ADC value should be around 30.1/(604+30.1)*3300 = 156
- *
- * We add a significant margin on the maximum value, due to noise on the line,
- * especially when PWM is active. See b/64193554 for details.
- */
-#define BASE_DETECT_MIN_MV 120
-#define BASE_DETECT_MAX_MV 300
-
-/* Minimum ADC value to indicate base is disconnected for sure */
-#define BASE_DETECT_DISCONNECT_MIN_MV 1500
-
-/*
- * Base EC pulses detection pin for 500 us to signal out of band USB wake (that
- * can be used to wake system from deep S3).
- */
-#define BASE_DETECT_PULSE_MIN_US 400
-#define BASE_DETECT_PULSE_MAX_US 650
-
-static uint64_t base_detect_debounce_time;
-
-static void base_detect_deferred(void);
-DECLARE_DEFERRED(base_detect_deferred);
-
-enum base_status {
-	BASE_UNKNOWN = 0,
-	BASE_DISCONNECTED = 1,
-	BASE_CONNECTED = 2,
-};
-
-static enum base_status current_base_status;
-
-/*
- * This function is called whenever there is a change in the base detect
- * status. Actions taken include:
- * 1. Change in power to base
- * 2. Indicate mode change to host.
- * 3. Indicate tablet mode to host. Current assumption is that if base is
- * disconnected then the system is in tablet mode, else if the base is
- * connected, then the system is not in tablet mode.
- */
-static void base_detect_change(enum base_status status)
-{
-	int connected = (status == BASE_CONNECTED);
-
-	if (current_base_status == status)
-		return;
-
-	gpio_set_level(GPIO_EN_BASE, connected);
-	tablet_set_mode(!connected, TABLET_TRIGGER_BASE);
-	base_set_state(connected);
-	current_base_status = status;
-}
-
-/* Measure detection pin pulse duration (used to wake AP from deep S3). */
-static uint64_t pulse_start;
-static uint32_t pulse_width;
-
-static void print_base_detect_value(int v, int tmp_pulse_width)
-{
-	CPRINTS("%s = %d (pulse %d)", adc_channels[ADC_BASE_DET].name,
-			v, tmp_pulse_width);
-}
-
-static void base_detect_deferred(void)
-{
-	uint64_t time_now = get_time().val;
-	int v;
-	uint32_t tmp_pulse_width = pulse_width;
-
-	if (base_detect_debounce_time > time_now) {
-		hook_call_deferred(&base_detect_deferred_data,
-				   base_detect_debounce_time - time_now);
-		return;
-	}
-
-	v = adc_read_channel(ADC_BASE_DET);
-	if (v == ADC_READ_ERROR)
-		return;
-
-	print_base_detect_value(v, tmp_pulse_width);
-
-	if (v >= BASE_DETECT_MIN_MV && v <= BASE_DETECT_MAX_MV) {
-		if (current_base_status != BASE_CONNECTED) {
-			base_detect_change(BASE_CONNECTED);
-		} else if (tmp_pulse_width >= BASE_DETECT_PULSE_MIN_US &&
-			   tmp_pulse_width <= BASE_DETECT_PULSE_MAX_US) {
-			CPRINTS("Sending event to AP");
-			host_set_single_event(EC_HOST_EVENT_KEY_PRESSED);
-		}
-		return;
-	}
-
-	if (v >= BASE_DETECT_DISCONNECT_MIN_MV) {
-		base_detect_change(BASE_DISCONNECTED);
-		return;
-	}
-
-	/* Unclear base status, schedule again in a while. */
-	hook_call_deferred(&base_detect_deferred_data, BASE_DETECT_RETRY_US);
-}
-
-static inline int detect_pin_connected(enum gpio_signal det_pin)
-{
-	return gpio_get_level(det_pin) == 0;
-}
-
-void base_detect_interrupt(enum gpio_signal signal)
-{
-	uint64_t time_now = get_time().val;
-	int debounce_us;
-
-	if (detect_pin_connected(signal))
-		debounce_us = BASE_DETECT_EN_DEBOUNCE_US;
-	else
-		debounce_us = BASE_DETECT_DIS_DEBOUNCE_US;
-
-	if (base_detect_debounce_time <= time_now) {
-		/*
-		 * Detect and measure detection pin pulse, when base is
-		 * connected. Only a single pulse is measured over a debounce
-		 * period. If no pulse, or multiple pulses are detected,
-		 * pulse_width is set to 0.
-		 */
-		if (current_base_status == BASE_CONNECTED &&
-		    !detect_pin_connected(signal)) {
-			pulse_start = time_now;
-		} else {
-			pulse_start = 0;
-		}
-		pulse_width = 0;
-
-		hook_call_deferred(&base_detect_deferred_data, debounce_us);
-	} else {
-		if (current_base_status == BASE_CONNECTED &&
-		    detect_pin_connected(signal) && !pulse_width &&
-		    pulse_start) {
-			/* First pulse within period. */
-			pulse_width = time_now - pulse_start;
-		} else {
-			pulse_start = 0;
-			pulse_width = 0;
-		}
-	}
-
-	base_detect_debounce_time = time_now + debounce_us;
-}
-
-static void base_enable(void)
-{
-	/* Enable base detection interrupt. */
-	base_detect_debounce_time = get_time().val;
-	hook_call_deferred(&base_detect_deferred_data,
-			BASE_DETECT_EN_LATER_US);
-	gpio_enable_interrupt(GPIO_BASE_DET_L);
-}
-DECLARE_HOOK(HOOK_CHIPSET_STARTUP, base_enable, HOOK_PRIO_DEFAULT);
-
-static void base_disable(void)
-{
-	/*
-	 * Disable base detection interrupt and disable power to base.
-	 * Set the state UNKNOWN so the next startup will initialize a
-	 * correct state and notify AP.
-	 */
-	gpio_disable_interrupt(GPIO_BASE_DET_L);
-	base_detect_change(BASE_UNKNOWN);
-}
-DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, base_disable, HOOK_PRIO_DEFAULT);
-
-static void base_init(void)
-{
-	/*
-	 * If we jumped to this image and chipset is already in S0, enable
-	 * base.
-	 */
-	if (system_jumped_late() && chipset_in_state(CHIPSET_STATE_ON))
-		base_enable();
-}
-DECLARE_HOOK(HOOK_INIT, base_init, HOOK_PRIO_DEFAULT+1);
-
-void base_force_state(enum ec_set_base_state_cmd state)
-{
-	if (state == EC_SET_BASE_STATE_ATTACH) {
-		gpio_disable_interrupt(GPIO_BASE_DET_L);
-		base_detect_change(BASE_CONNECTED);
-		CPRINTS("BD forced connected");
-	} else if (state == EC_SET_BASE_STATE_DETACH) {
-		gpio_disable_interrupt(GPIO_BASE_DET_L);
-		base_detect_change(BASE_DISCONNECTED);
-		CPRINTS("BD forced disconnected");
-	} else {
-		base_enable();
-		CPRINTS("BD forced reset");
-	}
-}
diff --git a/board/homestar/battery.c b/board/homestar/battery.c
deleted file mode 100644
index b1a05809f0..0000000000
--- a/board/homestar/battery.c
+++ /dev/null
@@ -1,213 +0,0 @@
-/* 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.
- *
- * Battery pack vendor provided charging profile
- */
-
-#include "battery_fuel_gauge.h"
-#include "common.h"
-#include "util.h"
-
-/*
- * Battery info for all homestar 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[] = {
-	/* COSMX GH02047XL 333-1C-DA-A */
-	[BATTERY_GH02047XL_1C] = {
-		.fuel_gauge = {
-			.manuf_name = "333-1C-DA-A",
-			.device_name = "GH02047XL",
-			.ship_mode = {
-				.reg_addr = 0x00,
-				.reg_data = { 0x0010, 0x0010 },
-			},
-			.fet = {
-				.mfgacc_support = 1,
-				.reg_addr = 0x0,
-				.reg_mask = 0x0002,
-				.disconnect_val = 0x0,
-			}
-		},
-		.batt_info = {
-			.voltage_max            = 8800, /* mV */
-			.voltage_normal         = 7700, /* mV */
-			.voltage_min            = 6000, /* mV */
-			.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 GH02047XL */
-	[BATTERY_GH02047XL] = {
-		.fuel_gauge = {
-			.manuf_name = "333-AC-DA-A",
-			.device_name = "GH02047XL",
-			.ship_mode = {
-				.reg_addr = 0x00,
-				.reg_data = { 0x0010, 0x0010 },
-			},
-			.fet = {
-				.mfgacc_support = 1,
-				.reg_addr = 0x0,
-				.reg_mask = 0x0002,
-				.disconnect_val = 0x0,
-			}
-		},
-		.batt_info = {
-			.voltage_max            = 8800, /* mV */
-			.voltage_normal         = 7700, /* mV */
-			.voltage_min            = 6000, /* mV */
-			.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 DS02032XL */
-	[BATTERY_DS02032XL] = {
-		.fuel_gauge = {
-			.manuf_name = "333-AC-13-A",
-			.device_name = "DS02032XL",
-			.ship_mode = {
-				.reg_addr = 0x00,
-				.reg_data = { 0x0010, 0x0010 },
-			},
-			.fet = {
-				.mfgacc_support = 1,
-				.reg_addr = 0x0,
-				.reg_mask = 0x0002,
-				.disconnect_val = 0x0,
-			}
-		},
-		.batt_info = {
-			.voltage_max            = 8800, /* mV */
-			.voltage_normal         = 7700, /* mV */
-			.voltage_min            = 6000, /* mV */
-			.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,
-		},
-	},
-	/* SMP DS02032XL */
-	[BATTERY_DS02032XL_1C] = {
-		.fuel_gauge = {
-			.manuf_name = "333-1C-13-A",
-			.device_name = "DS02032XL",
-			.ship_mode = {
-				.reg_addr = 0x00,
-				.reg_data = { 0x0010, 0x0010 },
-			},
-			.fet = {
-				.mfgacc_support = 1,
-				.reg_addr = 0x0,
-				.reg_mask = 0x0002,
-				.disconnect_val = 0x0,
-			}
-		},
-		.batt_info = {
-			.voltage_max            = 8800, /* mV */
-			.voltage_normal         = 7700, /* mV */
-			.voltage_min            = 6000, /* mV */
-			.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,
-		},
-	},
-	/* Sunwoda L21D4PG0 */
-	[BATTERY_L21D4PG0] = {
-		.fuel_gauge = {
-			.manuf_name = "Sunwoda",
-			.device_name = "L21D4PG0",
-			.ship_mode = {
-				.reg_addr = 0x34,
-				.reg_data = { 0x0000, 0x1000 },
-			},
-			.fet = {
-				.mfgacc_support = 1,
-				.reg_addr = 0x34,
-				.reg_mask = 0x0100,
-				.disconnect_val = 0x0,
-			}
-		},
-		.batt_info = {
-			.voltage_max            = 8900, /* mV */
-			.voltage_normal         = 7720, /* mV */
-			.voltage_min            = 6000, /* mV */
-			.precharge_current      = 274,  /* mA */
-			.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      = 60,
-		},
-	},
-	/* SMP L21M4PG0 */
-	[BATTERY_L21M4PG0] = {
-		.fuel_gauge = {
-			.manuf_name = "SMP",
-			.device_name = "L21M4PG0",
-			.ship_mode = {
-				.reg_addr = 0x34,
-				.reg_data = { 0x0000, 0x1000 },
-			},
-			.fet = {
-				.mfgacc_support = 1,
-				.reg_addr = 0x34,
-				.reg_mask = 0x0100,
-				.disconnect_val = 0x0,
-			}
-		},
-		.batt_info = {
-			.voltage_max            = 8900, /* mV */
-			.voltage_normal         = 7720, /* mV */
-			.voltage_min            = 6000, /* mV */
-			.precharge_current      = 274,  /* mA */
-			.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      = 60,
-		},
-	},
-};
-BUILD_ASSERT(ARRAY_SIZE(board_battery_info) == BATTERY_TYPE_COUNT);
-
-const enum battery_type DEFAULT_BATTERY_TYPE = BATTERY_L21D4PG0;
diff --git a/board/homestar/board.c b/board/homestar/board.c
deleted file mode 100644
index 22f940eec2..0000000000
--- a/board/homestar/board.c
+++ /dev/null
@@ -1,698 +0,0 @@
-/* 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.
- */
-
-/* Homestar board-specific configuration */
-
-#include "adc_chip.h"
-#include "button.h"
-#include "charge_manager.h"
-#include "charge_state.h"
-#include "common.h"
-#include "extpower.h"
-#include "driver/accel_bma2x2.h"
-#include "driver/accelgyro_bmi_common.h"
-#include "driver/accelgyro_icm_common.h"
-#include "driver/accelgyro_icm42607.h"
-#include "driver/ln9310.h"
-#include "driver/ppc/sn5s330.h"
-#include "driver/tcpm/ps8xxx.h"
-#include "driver/tcpm/tcpci.h"
-#include "gpio.h"
-#include "hooks.h"
-#include "keyboard_mkbp.h"
-#include "keyboard_scan.h"
-#include "lid_switch.h"
-#include "peripheral_charger.h"
-#include "pi3usb9201.h"
-#include "power.h"
-#include "power/qcom.h"
-#include "power_button.h"
-#include "pwm.h"
-#include "pwm_chip.h"
-#include "queue.h"
-#include "system.h"
-#include "shi_chip.h"
-#include "switch.h"
-#include "tablet_mode.h"
-#include "task.h"
-#include "usbc_ppc.h"
-
-#define CPRINTS(format, args...) cprints(CC_USBCHARGE, format, ## args)
-#define CPRINTF(format, args...) cprintf(CC_USBCHARGE, format, ## args)
-
-#define KS_DEBOUNCE_US    (30 * MSEC)  /* Debounce time for kickstand switch */
-
-/* Forward declaration */
-static void tcpc_alert_event(enum gpio_signal signal);
-static void usb0_evt(enum gpio_signal signal);
-static void usb1_evt(enum gpio_signal signal);
-static void ppc_interrupt(enum gpio_signal signal);
-static void board_connect_c0_sbu(enum gpio_signal s);
-static void switchcap_interrupt(enum gpio_signal signal);
-
-#include "gpio_list.h"
-
-/* GPIO Interrupt Handlers */
-static void tcpc_alert_event(enum gpio_signal signal)
-{
-	int port = -1;
-
-	switch (signal) {
-	case GPIO_USB_C0_PD_INT_ODL:
-		port = 0;
-		break;
-	case GPIO_USB_C1_PD_INT_ODL:
-		port = 1;
-		break;
-	default:
-		return;
-	}
-
-	schedule_deferred_pd_interrupt(port);
-}
-
-static void usb0_evt(enum gpio_signal signal)
-{
-	task_set_event(TASK_ID_USB_CHG_P0, USB_CHG_EVENT_BC12);
-}
-
-static void usb1_evt(enum gpio_signal signal)
-{
-	task_set_event(TASK_ID_USB_CHG_P1, USB_CHG_EVENT_BC12);
-}
-
-static void ppc_interrupt(enum gpio_signal signal)
-{
-	switch (signal) {
-	case GPIO_USB_C0_SWCTL_INT_ODL:
-		sn5s330_interrupt(0);
-		break;
-	case GPIO_USB_C1_SWCTL_INT_ODL:
-		sn5s330_interrupt(1);
-		break;
-	default:
-		break;
-	}
-}
-
-static void board_connect_c0_sbu_deferred(void)
-{
-	/*
-	 * If CCD_MODE_ODL asserts, it means there's a debug accessory connected
-	 * and we should enable the SBU FETs.
-	 */
-	ppc_set_sbu(0, 1);
-}
-DECLARE_DEFERRED(board_connect_c0_sbu_deferred);
-
-static void board_connect_c0_sbu(enum gpio_signal s)
-{
-	hook_call_deferred(&board_connect_c0_sbu_deferred_data, 0);
-}
-
-static void switchcap_interrupt(enum gpio_signal signal)
-{
-	ln9310_interrupt(signal);
-}
-
-/* I2C port map */
-const struct i2c_port_t i2c_ports[] = {
-	{"power",   I2C_PORT_POWER,  100, GPIO_EC_I2C_POWER_SCL,
-					  GPIO_EC_I2C_POWER_SDA},
-	{"tcpc0",   I2C_PORT_TCPC0, 1000, GPIO_EC_I2C_USB_C0_PD_SCL,
-					  GPIO_EC_I2C_USB_C0_PD_SDA},
-	{"tcpc1",   I2C_PORT_TCPC1, 1000, GPIO_EC_I2C_USB_C1_PD_SCL,
-					  GPIO_EC_I2C_USB_C1_PD_SDA},
-	{"eeprom",  I2C_PORT_EEPROM, 400, GPIO_EC_I2C_EEPROM_SCL,
-					  GPIO_EC_I2C_EEPROM_SDA},
-	{"sensor",  I2C_PORT_SENSOR, 400, GPIO_EC_I2C_SENSOR_SCL,
-					  GPIO_EC_I2C_SENSOR_SDA},
-};
-
-const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
-
-/* ADC channels */
-const struct adc_t adc_channels[] = {
-	/* Measure VBUS through a 1/10 voltage divider */
-	[ADC_VBUS] = {
-		"VBUS",
-		NPCX_ADC_CH1,
-		ADC_MAX_VOLT * 10,
-		ADC_READ_MAX + 1,
-		0
-	},
-	/*
-	 * Adapter current output or battery charging/discharging current (uV)
-	 * 18x amplification on charger side.
-	 */
-	[ADC_AMON_BMON] = {
-		"AMON_BMON",
-		NPCX_ADC_CH2,
-		ADC_MAX_VOLT * 1000 / 18,
-		ADC_READ_MAX + 1,
-		0
-	},
-	/*
-	 * ISL9238 PSYS output is 1.44 uA/W over 5.6K resistor, to read
-	 * 0.8V @ 99 W, i.e. 124000 uW/mV. Using ADC_MAX_VOLT*124000 and
-	 * ADC_READ_MAX+1 as multiplier/divider leads to overflows, so we
-	 * only divide by 2 (enough to avoid precision issues).
-	 */
-	[ADC_PSYS] = {
-		"PSYS",
-		NPCX_ADC_CH3,
-		ADC_MAX_VOLT * 124000 * 2 / (ADC_READ_MAX + 1),
-		2,
-		0
-	},
-	/* Base detection */
-	[ADC_BASE_DET] = {
-		"BASE_DET",
-		NPCX_ADC_CH5,
-		ADC_MAX_VOLT,
-		ADC_READ_MAX + 1,
-		0
-	},
-};
-BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
-
-const struct pwm_t pwm_channels[] = {
-	/* TODO(waihong): Assign a proper frequency. */
-	[PWM_CH_DISPLIGHT] = { .channel = 5, .flags = 0, .freq = 4800 },
-};
-BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);
-
-/* LN9310 switchcap */
-const struct ln9310_config_t ln9310_config = {
-	.i2c_port = I2C_PORT_POWER,
-	.i2c_addr_flags = LN9310_I2C_ADDR_0_FLAGS,
-};
-
-/* Power Path Controller */
-struct ppc_config_t ppc_chips[] = {
-	{
-		.i2c_port = I2C_PORT_TCPC0,
-		.i2c_addr_flags = SN5S330_ADDR0_FLAGS,
-		.drv = &sn5s330_drv
-	},
-	{
-		.i2c_port = I2C_PORT_TCPC1,
-		.i2c_addr_flags = SN5S330_ADDR0_FLAGS,
-		.drv = &sn5s330_drv
-	},
-};
-unsigned int ppc_cnt = ARRAY_SIZE(ppc_chips);
-
-/* TCPC mux configuration */
-const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_MAX_COUNT] = {
-	{
-		.bus_type = EC_BUS_TYPE_I2C,
-		.i2c_info = {
-			.port = I2C_PORT_TCPC0,
-			.addr_flags = PS8751_I2C_ADDR1_FLAGS,
-		},
-		.drv = &ps8xxx_tcpm_drv,
-	},
-	{
-		.bus_type = EC_BUS_TYPE_I2C,
-		.i2c_info = {
-			.port = I2C_PORT_TCPC1,
-			.addr_flags = PS8751_I2C_ADDR1_FLAGS,
-		},
-		.drv = &ps8xxx_tcpm_drv,
-	},
-};
-
-/*
- * Port-0/1 USB mux driver.
- *
- * The USB mux is handled by TCPC chip and the HPD update is through a GPIO
- * to AP. But the TCPC chip is also needed to know the HPD status; otherwise,
- * the mux misbehaves.
- */
-const struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT] = {
-	{
-		.usb_port = 0,
-		.driver = &tcpci_tcpm_usb_mux_driver,
-		.hpd_update = &ps8xxx_tcpc_update_hpd_status,
-	},
-	{
-		.usb_port = 1,
-		.driver = &tcpci_tcpm_usb_mux_driver,
-		.hpd_update = &ps8xxx_tcpc_update_hpd_status,
-	}
-};
-
-/* BC1.2 */
-const struct pi3usb9201_config_t pi3usb9201_bc12_chips[] = {
-	{
-		.i2c_port = I2C_PORT_POWER,
-		.i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS,
-	},
-	{
-		.i2c_port = I2C_PORT_EEPROM,
-		.i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS,
-	},
-};
-
-/* Mutexes */
-static struct mutex g_lid_mutex;
-
-static struct bmi_drv_data_t g_bmi160_data;
-static struct icm_drv_data_t g_icm42607_data;
-
-enum lid_accelgyro_type {
-	LID_GYRO_NONE = 0,
-	LID_GYRO_BMI160 = 1,
-	LID_GYRO_ICM42607 = 2,
-};
-
-static enum lid_accelgyro_type lid_accelgyro_config;
-
-/* Matrix to rotate accelerometer into standard reference frame */
-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)}
-};
-
-const mat33_fp_t lid_standard_ref_icm42607 = {
-	{ 0, FLOAT_TO_FP(1), 0},
-	{ FLOAT_TO_FP(-1), 0, 0},
-	{ 0,  0, FLOAT_TO_FP(1)}
-};
-
-struct motion_sensor_t icm42607_lid_accel = {
-	.name = "Lid Accel",
-	.active_mask = SENSOR_ACTIVE_S0_S3,
-	.chip = MOTIONSENSE_CHIP_ICM42607,
-	.type = MOTIONSENSE_TYPE_ACCEL,
-	.location = MOTIONSENSE_LOC_LID,
-	.drv = &icm42607_drv,
-	.mutex = &g_lid_mutex,
-	.drv_data = &g_icm42607_data,
-	.port = I2C_PORT_SENSOR,
-	.i2c_spi_addr_flags = ICM42607_ADDR0_FLAGS,
-	.rot_standard_ref = &lid_standard_ref_icm42607,
-	.default_range = 4,  /* g, to meet CDD 7.3.1/C-1-4 reqs */
-	.min_frequency = ICM42607_ACCEL_MIN_FREQ,
-	.max_frequency = ICM42607_ACCEL_MAX_FREQ,
-	.config = {
-		[SENSOR_CONFIG_EC_S0] = {
-			.odr = 10000 | ROUND_UP_FLAG,
-		},
-	},
-};
-
-struct motion_sensor_t icm42607_lid_gyro = {
-	.name = "Gyro",
-	.active_mask = SENSOR_ACTIVE_S0_S3,
-	.chip = MOTIONSENSE_CHIP_ICM42607,
-	.type = MOTIONSENSE_TYPE_GYRO,
-	.location = MOTIONSENSE_LOC_LID,
-	.drv = &icm42607_drv,
-	.mutex = &g_lid_mutex,
-	.drv_data = &g_icm42607_data,
-	.port = I2C_PORT_SENSOR,
-	.i2c_spi_addr_flags = ICM42607_ADDR0_FLAGS,
-	.default_range = 1000, /* dps */
-	.rot_standard_ref = &lid_standard_ref_icm42607,
-	.min_frequency = ICM42607_GYRO_MIN_FREQ,
-	.max_frequency = ICM42607_GYRO_MAX_FREQ,
-};
-
-struct motion_sensor_t motion_sensors[] = {
-	/*
-	 * Note: bmi160: supports accelerometer and gyro sensor
-	 * Requirement: accelerometer sensor must init before gyro sensor
-	 * DO NOT change the order of the following table.
-	 */
-	[LID_ACCEL] = {
-	 .name = "Lid Accel",
-	 .active_mask = SENSOR_ACTIVE_S0_S3,
-	 .chip = MOTIONSENSE_CHIP_BMI160,
-	 .type = MOTIONSENSE_TYPE_ACCEL,
-	 .location = MOTIONSENSE_LOC_LID,
-	 .drv = &bmi160_drv,
-	 .mutex = &g_lid_mutex,
-	 .drv_data = &g_bmi160_data,
-	 .port = I2C_PORT_SENSOR,
-	 .i2c_spi_addr_flags = BMI160_ADDR0_FLAGS,
-	 .rot_standard_ref = &lid_standard_ref,
-	 .default_range = 4,  /* g, to meet CDD 7.3.1/C-1-4 reqs */
-	 .min_frequency = BMI_ACCEL_MIN_FREQ,
-	 .max_frequency = BMI_ACCEL_MAX_FREQ,
-	 .config = {
-		 [SENSOR_CONFIG_EC_S0] = {
-			 .odr = 10000 | ROUND_UP_FLAG,
-		 },
-	 },
-	},
-	[LID_GYRO] = {
-	 .name = "Gyro",
-	 .active_mask = SENSOR_ACTIVE_S0_S3,
-	 .chip = MOTIONSENSE_CHIP_BMI160,
-	 .type = MOTIONSENSE_TYPE_GYRO,
-	 .location = MOTIONSENSE_LOC_LID,
-	 .drv = &bmi160_drv,
-	 .mutex = &g_lid_mutex,
-	 .drv_data = &g_bmi160_data,
-	 .port = I2C_PORT_SENSOR,
-	 .i2c_spi_addr_flags = BMI160_ADDR0_FLAGS,
-	 .default_range = 1000, /* dps */
-	 .rot_standard_ref = &lid_standard_ref,
-	 .min_frequency = BMI_GYRO_MIN_FREQ,
-	 .max_frequency = BMI_GYRO_MAX_FREQ,
-	},
-};
-const unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);
-
-static void board_detect_motionsensor(void)
-{
-	int val = -1;
-
-	if (chipset_in_state(CHIPSET_STATE_ANY_OFF))
-		return;
-	if (lid_accelgyro_config != LID_GYRO_NONE)
-		return;
-
-	/* Check base accelgyro chip */
-	icm_read8(&icm42607_lid_accel, ICM42607_REG_WHO_AM_I, &val);
-	if (val == ICM42607_CHIP_ICM42607P) {
-		motion_sensors[LID_ACCEL] = icm42607_lid_accel;
-		motion_sensors[LID_GYRO] = icm42607_lid_gyro;
-		lid_accelgyro_config = LID_GYRO_ICM42607;
-		CPRINTS("LID Accelgyro: ICM42607");
-	} else {
-		lid_accelgyro_config = LID_GYRO_BMI160;
-		CPRINTS("LID Accelgyro: BMI160");
-	}
-}
-DECLARE_HOOK(HOOK_CHIPSET_STARTUP, board_detect_motionsensor,
-	     HOOK_PRIO_DEFAULT);
-DECLARE_HOOK(HOOK_INIT, board_detect_motionsensor, HOOK_PRIO_DEFAULT + 1);
-
-void motion_interrupt(enum gpio_signal signal)
-{
-	switch (lid_accelgyro_config) {
-	case LID_GYRO_ICM42607:
-		icm42607_interrupt(signal);
-		break;
-	case LID_GYRO_BMI160:
-	default:
-		bmi160_interrupt(signal);
-		break;
-	}
-}
-
-enum battery_cell_type board_get_battery_cell_type(void)
-{
-	return BATTERY_CELL_TYPE_2S;
-}
-
-static void board_switchcap_init(void)
-{
-	CPRINTS("Use switchcap: LN9310");
-
-	/* Configure and enable interrupt for LN9310 */
-	gpio_set_flags(GPIO_SWITCHCAP_PG_INT_L, GPIO_INT_FALLING);
-	gpio_enable_interrupt(GPIO_SWITCHCAP_PG_INT_L);
-
-	/* Only configure the switchcap if not sysjump */
-	if (!system_jumped_late()) {
-		ln9310_init();
-	}
-}
-
-/* Initialize board. */
-static void board_init(void)
-{
-	/* Enable BC1.2 interrupts */
-	gpio_enable_interrupt(GPIO_USB_C0_BC12_INT_L);
-	gpio_enable_interrupt(GPIO_USB_C1_BC12_INT_L);
-	gpio_enable_interrupt(GPIO_ACCEL_GYRO_INT_L);
-
-	/*
-	 * The H1 SBU line for CCD are behind PPC chip. The PPC internal FETs
-	 * for SBU may be disconnected after DP alt mode is off. Should enable
-	 * the CCD_MODE_ODL interrupt to make sure the SBU FETs are connected.
-	 */
-	gpio_enable_interrupt(GPIO_CCD_MODE_ODL);
-
-	/* Set the backlight duty cycle to 0. AP will override it later. */
-	pwm_set_duty(PWM_CH_DISPLIGHT, 0);
-
-	board_switchcap_init();
-}
-DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
-
-__overridable uint16_t board_get_ps8xxx_product_id(int port)
-{
-	/* Check if the chip is PS8755 for rev-0, rev-1 and rev-2 */
-	if (system_get_board_version() < 3 && check_ps8755_chip(port))
-		return PS8755_PRODUCT_ID;
-
-	return PS8805_PRODUCT_ID;
-}
-
-void board_tcpc_init(void)
-{
-	/* Only reset TCPC if not sysjump */
-	if (!system_jumped_late()) {
-		/* TODO(crosbug.com/p/61098): How long do we need to wait? */
-		board_reset_pd_mcu();
-	}
-
-	/* Enable PPC interrupts */
-	gpio_enable_interrupt(GPIO_USB_C0_SWCTL_INT_ODL);
-
-	/* Enable TCPC interrupts */
-	gpio_enable_interrupt(GPIO_USB_C0_PD_INT_ODL);
-	gpio_enable_interrupt(GPIO_USB_C1_PD_INT_ODL);
-
-	/*
-	 * Initialize HPD to low; after sysjump SOC needs to see
-	 * HPD pulse to enable video path
-	 */
-	for (int port = 0; port < CONFIG_USB_PD_PORT_MAX_COUNT; ++port)
-		usb_mux_hpd_update(port, USB_PD_MUX_HPD_LVL_DEASSERTED |
-					 USB_PD_MUX_HPD_IRQ_DEASSERTED);
-}
-DECLARE_HOOK(HOOK_INIT, board_tcpc_init, HOOK_PRIO_INIT_I2C+1);
-
-void board_hibernate(void)
-{
-	int i;
-
-	/*
-	 * Sensors are unpowered in hibernate. Apply PD to the
-	 * interrupt lines such that they don't float.
-	 */
-	gpio_set_flags(GPIO_ACCEL_GYRO_INT_L,
-		       GPIO_INPUT | GPIO_PULL_DOWN);
-
-	/*
-	 * Board rev 1+ has the hardware fix. Don't need the following
-	 * workaround.
-	 */
-	if (system_get_board_version() >= 1)
-		return;
-
-	/*
-	 * Enable the PPC power sink path before EC enters hibernate;
-	 * otherwise, ACOK won't go High and can't wake EC up. Check the
-	 * bug b/170324206 for details.
-	 */
-	for (i = 0; i < CONFIG_USB_PD_PORT_MAX_COUNT; i++)
-		ppc_vbus_sink_enable(i, 1);
-}
-
-/* Called on AP S0 -> S3 transition */
-static void board_chipset_suspend(void)
-{
-	/*
-	 * Turn off display backlight in S3. AP has its own control. The EC's
-	 * and the AP's will be AND'ed together in hardware.
-	 */
-	gpio_set_level(GPIO_ENABLE_BACKLIGHT, 0);
-	pwm_enable(PWM_CH_DISPLIGHT, 0);
-}
-DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_chipset_suspend, HOOK_PRIO_DEFAULT);
-
-/* Called on AP S3 -> S0 transition */
-static void board_chipset_resume(void)
-{
-	/* Turn on display and keyboard backlight in S0. */
-	gpio_set_level(GPIO_ENABLE_BACKLIGHT, 1);
-	if (pwm_get_duty(PWM_CH_DISPLIGHT))
-		pwm_enable(PWM_CH_DISPLIGHT, 1);
-}
-DECLARE_HOOK(HOOK_CHIPSET_RESUME, board_chipset_resume, HOOK_PRIO_DEFAULT);
-
-void board_set_switchcap_power(int enable)
-{
-	gpio_set_level(GPIO_SWITCHCAP_ON_L, !enable);
-	ln9310_software_enable(enable);
-}
-
-int board_is_switchcap_enabled(void)
-{
-	return !gpio_get_level(GPIO_SWITCHCAP_ON_L);
-}
-
-int board_is_switchcap_power_good(void)
-{
-	return ln9310_power_good();
-}
-
-void board_reset_pd_mcu(void)
-{
-	cprints(CC_USB, "Resetting TCPCs...");
-	cflush();
-
-	gpio_set_level(GPIO_USB_C0_PD_RST_L, 0);
-	gpio_set_level(GPIO_USB_C1_PD_RST_L, 0);
-	msleep(PS8XXX_RESET_DELAY_MS);
-	gpio_set_level(GPIO_USB_C0_PD_RST_L, 1);
-	gpio_set_level(GPIO_USB_C1_PD_RST_L, 1);
-}
-
-void board_set_tcpc_power_mode(int port, int mode)
-{
-	/* Ignore the "mode" to turn the chip on.  We can only do a reset. */
-	if (mode)
-		return;
-
-	board_reset_pd_mcu();
-}
-
-int board_vbus_sink_enable(int port, int enable)
-{
-	/* Both ports are controlled by PPC SN5S330 */
-	return ppc_vbus_sink_enable(port, enable);
-}
-
-int board_is_sourcing_vbus(int port)
-{
-	/* Both ports are controlled by PPC SN5S330 */
-	return ppc_is_sourcing_vbus(port);
-}
-
-void board_overcurrent_event(int port, int is_overcurrented)
-{
-	/* TODO(b/120231371): Notify AP */
-	CPRINTS("p%d: overcurrent!", port);
-}
-
-int board_set_active_charge_port(int port)
-{
-	int is_real_port = (port >= 0 &&
-			    port < CONFIG_USB_PD_PORT_MAX_COUNT);
-	int i;
-
-	if (!is_real_port && port != CHARGE_PORT_NONE)
-		return EC_ERROR_INVAL;
-
-	if (port == CHARGE_PORT_NONE) {
-		CPRINTS("Disabling all charging port");
-
-		/* Disable all ports. */
-		for (i = 0; i < CONFIG_USB_PD_PORT_MAX_COUNT; i++) {
-			/*
-			 * Do not return early if one fails otherwise we can
-			 * get into a boot loop assertion failure.
-			 */
-			if (board_vbus_sink_enable(i, 0))
-				CPRINTS("Disabling p%d sink path failed.", i);
-		}
-
-		return EC_SUCCESS;
-	}
-
-	/* Check if the port is sourcing VBUS. */
-	if (board_is_sourcing_vbus(port)) {
-		CPRINTS("Skip enable p%d", port);
-		return EC_ERROR_INVAL;
-	}
-
-
-	CPRINTS("New charge port: p%d", port);
-
-	/*
-	 * Turn off the other ports' sink path FETs, before enabling the
-	 * requested charge port.
-	 */
-	for (i = 0; i < CONFIG_USB_PD_PORT_MAX_COUNT; i++) {
-		if (i == port)
-			continue;
-
-		if (board_vbus_sink_enable(i, 0))
-			CPRINTS("p%d: sink path disable failed.", i);
-	}
-
-	/* Enable requested charge port. */
-	if (board_vbus_sink_enable(port, 1)) {
-		CPRINTS("p%d: sink path enable failed.", port);
-		return EC_ERROR_UNKNOWN;
-	}
-
-	return EC_SUCCESS;
-}
-
-void board_set_charge_limit(int port, int supplier, int charge_ma,
-			    int max_ma, int charge_mv)
-{
-	/*
-	 * Ignore lower charge ceiling on PD transition if our battery is
-	 * critical, as we may brownout.
-	 */
-	if (supplier == CHARGE_SUPPLIER_PD &&
-	    charge_ma < 1500 &&
-	    charge_get_percent() < CONFIG_CHARGER_MIN_BAT_PCT_FOR_POWER_ON) {
-		CPRINTS("Using max ilim %d", max_ma);
-		charge_ma = max_ma;
-	}
-
-	charge_ma = charge_ma * 95 / 100;
-	charge_set_input_current_limit(MAX(charge_ma,
-					   CONFIG_CHARGER_INPUT_CURRENT),
-				       charge_mv);
-}
-
-uint16_t tcpc_get_alert_status(void)
-{
-	uint16_t status = 0;
-
-	if (!gpio_get_level(GPIO_USB_C0_PD_INT_ODL))
-		if (gpio_get_level(GPIO_USB_C0_PD_RST_L))
-			status |= PD_STATUS_TCPC_ALERT_0;
-	if (!gpio_get_level(GPIO_USB_C1_PD_INT_ODL))
-		if (gpio_get_level(GPIO_USB_C1_PD_RST_L))
-			status |= PD_STATUS_TCPC_ALERT_1;
-
-	return status;
-}
-
-int battery_get_vendor_param(uint32_t param, uint32_t *value)
-{
-	int rv;
-	uint8_t data[16] = {};
-
-	/* only allow reading 0x70~0x7F, 16 byte data */
-	if (param < 0x70 || param >= 0x80)
-		return EC_ERROR_ACCESS_DENIED;
-
-	rv = sb_read_string(0x70, data, sizeof(data));
-	if (rv)
-		return rv;
-
-	*value = data[param - 0x70];
-	return EC_SUCCESS;
-}
-
-int battery_set_vendor_param(uint32_t param, uint32_t value)
-{
-	return EC_ERROR_UNIMPLEMENTED;
-}
diff --git a/board/homestar/board.h b/board/homestar/board.h
deleted file mode 100644
index 650ba638ec..0000000000
--- a/board/homestar/board.h
+++ /dev/null
@@ -1,119 +0,0 @@
-/* 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.
- */
-
-/* Homestar board configuration */
-
-#ifndef __CROS_EC_BOARD_H
-#define __CROS_EC_BOARD_H
-
-#include "baseboard.h"
-
-#define CONFIG_BUTTON_TRIGGERED_RECOVERY
-
-/* Internal SPI flash on NPCX7 */
-#define CONFIG_FLASH_SIZE_BYTES (512 * 1024)  /* 512KB internal spi flash */
-
-/* Switchcap */
-#define CONFIG_LN9310
-
-/* Battery */
-#define CONFIG_BATTERY_DEVICE_CHEMISTRY  "LION"
-#define CONFIG_BATTERY_REVIVE_DISCONNECT
-#define CONFIG_BATTERY_FUEL_GAUGE
-#define CONFIG_BATTERY_VENDOR_PARAM
-
-/* Enable PD3.0 */
-#define CONFIG_USB_PD_REV30
-
-/* BC 1.2 Charger */
-#define CONFIG_BC12_DETECT_PI3USB9201
-
-/* USB */
-#define CONFIG_USB_PD_TCPM_MULTI_PS8XXX
-#define CONFIG_USB_PD_TCPM_PS8755
-#define CONFIG_USB_PD_TCPM_PS8805
-#define CONFIG_USBC_PPC_SN5S330
-#define CONFIG_USB_PD_PORT_MAX_COUNT 2
-
-/* Lid accel/gyro */
-#define CONFIG_ACCELGYRO_BMI160
-#define CONFIG_ACCEL_INTERRUPTS
-#define CONFIG_ACCELGYRO_BMI160_INT_EVENT \
-	TASK_EVENT_MOTION_SENSOR_INTERRUPT(LID_ACCEL)
-#define OPT3001_I2C_ADDR_FLAGS OPT3001_I2C_ADDR1_FLAGS
-#define CONFIG_ACCELGYRO_ICM42607
-#define CONFIG_ACCELGYRO_ICM42607_INT_EVENT \
-	TASK_EVENT_MOTION_SENSOR_INTERRUPT(LID_ACCEL)
-
-#define CONFIG_TABLET_MODE
-#define CONFIG_TABLET_MODE_SWITCH
-#define CONFIG_FRONT_PROXIMITY_SWITCH
-
-#define CONFIG_DETACHABLE_BASE
-#define CONFIG_BASE_ATTACHED_SWITCH
-
-/*
- * Oled panel need to setup both vcc and backlight, AP will ctrl them.
- * BL_DISABLE does not need to be controlled by ec.
- */
-#ifdef CONFIG_BACKLIGHT_LID
-#undef CONFIG_BACKLIGHT_LID
-#endif
-
-/* GPIO alias */
-#define GPIO_AC_PRESENT GPIO_CHG_ACOK_OD
-#define GPIO_WP_L GPIO_EC_FLASH_WP_ODL
-#define GPIO_PMIC_RESIN_L GPIO_PM845_RESIN_L
-#define GPIO_SWITCHCAP_PG_INT_L GPIO_LN9310_INT
-
-#define CONFIG_MKBP_INPUT_DEVICES
-
-#ifndef __ASSEMBLER__
-
-#include "gpio_signal.h"
-#include "registers.h"
-
-enum adc_channel {
-	ADC_VBUS,
-	ADC_AMON_BMON,
-	ADC_PSYS,
-	ADC_BASE_DET,
-	ADC_CH_COUNT
-};
-
-/* Motion sensors */
-enum sensor_id {
-	LID_ACCEL = 0,
-	LID_GYRO,
-	SENSOR_COUNT,
-};
-
-enum pwm_channel {
-	PWM_CH_DISPLIGHT = 0,
-	PWM_CH_COUNT
-};
-
-/* List of possible batteries */
-enum battery_type {
-	BATTERY_GH02047XL_1C,
-	BATTERY_GH02047XL,
-	BATTERY_DS02032XL,
-	BATTERY_DS02032XL_1C,
-	BATTERY_L21D4PG0,
-	BATTERY_L21M4PG0,
-	BATTERY_TYPE_COUNT,
-};
-
-/* Reset all TCPCs. */
-void board_reset_pd_mcu(void);
-void board_set_tcpc_power_mode(int port, int mode);
-/* Base detection */
-void base_detect_interrupt(enum gpio_signal signal);
-
-void motion_interrupt(enum gpio_signal signal);
-
-#endif /* !defined(__ASSEMBLER__) */
-
-#endif /* __CROS_EC_BOARD_H */
diff --git a/board/homestar/build.mk b/board/homestar/build.mk
deleted file mode 100644
index 74b6b95e4d..0000000000
--- a/board/homestar/build.mk
+++ /dev/null
@@ -1,14 +0,0 @@
-# -*- makefile -*-
-# Copyright 2021 The Chromium OS Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-#
-# Board specific files build
-#
-
-CHIP:=npcx
-CHIP_FAMILY:=npcx7
-CHIP_VARIANT:=npcx7m6fc
-BASEBOARD:=trogdor
-
-board-y=battery.o board.o led.o base_detect.o
diff --git a/board/homestar/ec.tasklist b/board/homestar/ec.tasklist
deleted file mode 100644
index ea2aaa97f5..0000000000
--- a/board/homestar/ec.tasklist
+++ /dev/null
@@ -1,22 +0,0 @@
-/* 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.
- */
-
-/*
- * See CONFIG_TASK_LIST in config.h for details.
- */
-
-#define CONFIG_TASK_LIST \
-	TASK_ALWAYS(HOOKS, hook_task, NULL, ULTRA_TASK_STACK_SIZE) \
-	TASK_ALWAYS(USB_CHG_P0, usb_charger_task, NULL, LARGER_TASK_STACK_SIZE) \
-	TASK_ALWAYS(USB_CHG_P1, usb_charger_task, NULL, LARGER_TASK_STACK_SIZE) \
-	TASK_NOTEST(CHIPSET, chipset_task, NULL, ULTRA_TASK_STACK_SIZE) \
-	TASK_ALWAYS(CHARGER, charger_task, NULL, ULTRA_TASK_STACK_SIZE) \
-	TASK_ALWAYS(MOTIONSENSE, motion_sense_task, NULL, VENTI_TASK_STACK_SIZE) \
-	TASK_ALWAYS(HOSTCMD, host_command_task, NULL, ULTRA_TASK_STACK_SIZE) \
-	TASK_ALWAYS(CONSOLE, console_task, NULL, ULTRA_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_C0, pd_interrupt_handler_task, 0, ULTRA_TASK_STACK_SIZE) \
-	TASK_ALWAYS(PD_INT_C1, pd_interrupt_handler_task, 1, ULTRA_TASK_STACK_SIZE)
diff --git a/board/homestar/gpio.inc b/board/homestar/gpio.inc
deleted file mode 100644
index 77a69a5faa..0000000000
--- a/board/homestar/gpio.inc
+++ /dev/null
@@ -1,196 +0,0 @@
-/* -*- mode:c -*-
- *
- * 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.
- */
-
-/* Declare symbolic names for all the GPIOs that we care about.
- * Note: Those with interrupt handlers must be declared first. */
-
-/* USB-C interrupts */
-GPIO_INT(USB_C0_PD_INT_ODL,    PIN(E, 0), GPIO_INT_FALLING, tcpc_alert_event)  /* Interrupt from port-0 TCPC */
-GPIO_INT(USB_C1_PD_INT_ODL,    PIN(F, 5), GPIO_INT_FALLING, tcpc_alert_event)  /* Interrupt from port-1 TCPC */
-GPIO_INT(USB_C0_SWCTL_INT_ODL, PIN(0, 3), GPIO_INT_FALLING, ppc_interrupt)  /* Interrupt from port-0 PPC */
-GPIO_INT(USB_C1_SWCTL_INT_ODL, PIN(4, 0), GPIO_INT_FALLING, ppc_interrupt)  /* Interrupt from port-1 PPC */
-GPIO_INT(USB_C0_BC12_INT_L,    PIN(6, 1), GPIO_INT_FALLING | GPIO_PULL_UP, usb0_evt)  /* Interrupt from port-0 BC1.2 */
-GPIO_INT(USB_C1_BC12_INT_L,    PIN(8, 2), GPIO_INT_FALLING | GPIO_PULL_UP, usb1_evt)  /* Interrupt from port-1 BC1.2 */
-
-/* System interrupts */
-GPIO_INT(CHG_ACOK_OD,       PIN(0, 0), GPIO_INT_BOTH, extpower_interrupt)  /* ACOK */
-GPIO_INT(CCD_MODE_ODL,      PIN(E, 3), GPIO_INT_FALLING, board_connect_c0_sbu)  /* Case Closed Debug Mode */
-GPIO_INT(EC_PWR_BTN_ODL,    PIN(0, 1), GPIO_INT_BOTH, power_button_interrupt)  /* Power button */
-GPIO_INT(EC_VOLDN_BTN_ODL,  PIN(7, 0), GPIO_INT_BOTH | GPIO_PULL_UP, button_interrupt)  /* Volume Down button */
-GPIO_INT(EC_VOLUP_BTN_ODL,  PIN(F, 2), GPIO_INT_BOTH | GPIO_PULL_UP, button_interrupt)  /* Volume Up button */
-GPIO_INT(EC_FLASH_WP_ODL,   PIN(A, 1), GPIO_INT_BOTH, switch_interrupt)  /* Write protection */
-GPIO_INT(LID_OPEN_EC,       PIN(D, 2), GPIO_INT_BOTH, lid_interrupt)  /* Lid open */
-GPIO_INT(AP_RST_L,          PIN(C, 1), GPIO_INT_BOTH | GPIO_SEL_1P8V, chipset_ap_rst_interrupt)  /* PMIC to signal AP reset */
-GPIO_INT(PS_HOLD,           PIN(A, 4), GPIO_INT_BOTH | GPIO_PULL_DOWN, power_signal_interrupt)  /* Indicate when AP triggers reset/shutdown */
-GPIO_INT(AP_SUSPEND,        PIN(5, 7), GPIO_INT_BOTH, power_signal_interrupt)  /* Suspend signal from PMIC */
-GPIO_INT(DEPRECATED_AP_RST_REQ, PIN(C, 2), GPIO_INT_BOTH | GPIO_PULL_DOWN | GPIO_SEL_1P8V, power_signal_interrupt) /* Deprecated AP initiated reset indicator */
-
-/*
- * When switch-cap is off, the POWER_GOOD signal is floating. Need a pull-down
- * to make it low. Overload the interrupt function chipset_warm_reset_interrupt
- * for not only signalling power_signal_interrupt but also handling the logic
- * of WARM_RESET_L which is pulled-up by the same rail of POWER_GOOD.
- */
-GPIO_INT(POWER_GOOD,        PIN(5, 4), GPIO_INT_BOTH | GPIO_PULL_DOWN, chipset_power_good_interrupt)  /* SRC_PP1800_S10A from PMIC */
-GPIO_INT(WARM_RESET_L,      PIN(F, 4), GPIO_INT_BOTH | GPIO_SEL_1P8V, chipset_warm_reset_interrupt)  /* AP warm reset */
-GPIO_INT(AP_EC_SPI_CS_L,    PIN(5, 3), GPIO_INT_FALLING | GPIO_PULL_DOWN, shi_cs_event)  /* EC SPI Chip Select */
-
-GPIO_INT(BASE_DET_L,        PIN(3, 7), GPIO_INT_BOTH, base_detect_interrupt)  /* Detachable base attached? */
-
-/* Sensor interrupts */
-GPIO_INT(ACCEL_GYRO_INT_L,  PIN(A, 0), GPIO_INT_FALLING, motion_interrupt)  /* Accelerometer/gyro interrupt */
-
-/* Switchcap, for LN9310, it is the interrupt line of LN9310. */
-GPIO_INT(LN9310_INT,      PIN(E, 2), GPIO_INT_FALLING, switchcap_interrupt)
-
-/*
- * EC_RST_ODL acts as a wake source from hibernate mode. However, it does not
- * need to be an interrupt for normal EC operations. Simply set it an INPUT.
- */
-GPIO(EC_RST_ODL,            PIN(0, 2), GPIO_INPUT)     /* EC reset */
-GPIO(EC_ENTERING_RW,        PIN(E, 1), GPIO_OUT_LOW)   /* Indicate when EC is entering RW code */
-GPIO(EC_BATT_PRES_ODL,      PIN(E, 5), GPIO_INPUT)     /* Battery Present */
-
-/* PMIC/AP 1.8V */
-GPIO(PM845_RESIN_L,         PIN(3, 2), GPIO_ODR_HIGH)  /* PMIC reset trigger */
-GPIO(PMIC_KPD_PWR_ODL,      PIN(D, 6), GPIO_ODR_HIGH)  /* PMIC power button */
-GPIO(EC_INT_L,              PIN(A, 2), GPIO_ODR_HIGH)  /* Interrupt line between AP and EC */
-GPIO(QSIP_ON,               PIN(5, 0), GPIO_OUT_LOW)   /* Not used, for non-switchcap testing */
-
-/* Power enables */
-GPIO(HIBERNATE_L,           PIN(5, 2), GPIO_ODR_HIGH)  /* EC hibernate */
-GPIO(SWITCHCAP_ON_L,        PIN(D, 5), GPIO_ODR_HIGH)  /* Enable switch cap */
-GPIO(EN_PP3300_A,           PIN(A, 6), GPIO_OUT_LOW)   /* Enable PP3300 */
-GPIO(EN_PP5000_A,           PIN(6, 7), GPIO_OUT_LOW)   /* Enable PP5000 */
-GPIO(EC_BL_DISABLE_L,       PIN(B, 6), GPIO_OUT_LOW)   /* Backlight disable signal from EC */
-
-/* Base detection */
-GPIO(EN_BASE,               PIN(0, 4), GPIO_OUT_LOW)   /* Enable power to detachable base */
-
-/* POGO */
-GPIO(POGO_VBUS_PRESENT,     PIN(6, 2), GPIO_INPUT)    /* POGO PIN */
-
-/* USB-C */
-GPIO(USB_C0_PD_RST_L,       PIN(F, 1), GPIO_ODR_HIGH)  /* Port-0 TCPC chip reset, actaully Open-Drain */
-GPIO(USB_C1_PD_RST_L,       PIN(E, 4), GPIO_ODR_HIGH)  /* Port-1 TCPC chip reset, actually Open-Drain */
-GPIO(DP_MUX_OE_L,           PIN(9, 6), GPIO_ODR_HIGH)  /* DP mux enable, actually Open-Drain */
-GPIO(DP_MUX_SEL,            PIN(4, 5), GPIO_OUT_LOW)   /* DP mux selection: L:C0, H:C1 */
-GPIO(DP_HOT_PLUG_DET,       PIN(9, 5), GPIO_OUT_LOW)   /* DP HPD to AP */
-
-/* LEDs */
-GPIO(EC_CHG_LED_R_C0,       PIN(C, 3), GPIO_OUT_LOW)
-GPIO(EC_CHG_LED_G_C0,       PIN(C, 4), GPIO_OUT_LOW)
-
-/*
- * SPI host interface - enable PDs by default. These will be made functional
- * by the SHI driver when the AP powers up, and restored back to GPIO when
- * the AP powers down.
- */
-GPIO(AP_EC_SPI_MOSI,        PIN(4, 6), GPIO_INPUT | GPIO_PULL_DOWN)
-GPIO(AP_EC_SPI_MISO,        PIN(4, 7), GPIO_INPUT | GPIO_PULL_DOWN)
-GPIO(AP_EC_SPI_CLK,         PIN(5, 5), GPIO_INPUT | GPIO_PULL_DOWN)
-
-/* PWM */
-GPIO(EDP_BKLTCTL,           PIN(B, 7), GPIO_INPUT)     /* PWM5 */
-GPIO(WCAM_EC_VSYNC,         PIN(C, 0), GPIO_INPUT)     /* PWM6 */
-GPIO(FCAM_EC_VSYNC,         PIN(6, 0), GPIO_INPUT)     /* PWM7 */
-
-/* ADC */
-GPIO(PPVAR_BOOSTIN_SENSE,   PIN(4, 4), GPIO_INPUT)     /* ADC1 */
-GPIO(CHARGER_IADP,          PIN(4, 3), GPIO_INPUT)     /* ADC2 */
-GPIO(CHARGER_PMON,          PIN(4, 2), GPIO_INPUT)     /* ADC3 */
-
-/* I2C */
-GPIO(EC_I2C_POWER_SCL,      PIN(B, 5), GPIO_INPUT)
-GPIO(EC_I2C_POWER_SDA,      PIN(B, 4), GPIO_INPUT)
-GPIO(EC_I2C_USB_C0_PD_SCL,  PIN(9, 0), GPIO_INPUT)
-GPIO(EC_I2C_USB_C0_PD_SDA,  PIN(8, 7), GPIO_INPUT)
-GPIO(EC_I2C_USB_C1_PD_SCL,  PIN(9, 2), GPIO_INPUT)
-GPIO(EC_I2C_USB_C1_PD_SDA,  PIN(9, 1), GPIO_INPUT)
-GPIO(EC_I2C_EEPROM_SCL,     PIN(3, 3), GPIO_INPUT)
-GPIO(EC_I2C_EEPROM_SDA,     PIN(3, 6), GPIO_INPUT)
-GPIO(EC_I2C_SENSOR_SCL,     PIN(B, 3), GPIO_INPUT | GPIO_SEL_1P8V)
-GPIO(EC_I2C_SENSOR_SDA,     PIN(B, 2), GPIO_INPUT | GPIO_SEL_1P8V)
-
-/* Board/SKU IDs */
-GPIO(BRD_ID0,               PIN(C, 7), GPIO_INPUT)
-GPIO(BRD_ID1,               PIN(9, 3), GPIO_INPUT)
-GPIO(BRD_ID2,               PIN(6, 3), GPIO_INPUT)
-GPIO(SKU_ID0,               PIN(F, 0), GPIO_INPUT)
-GPIO(SKU_ID1,               PIN(4, 1), GPIO_INPUT)
-GPIO(SKU_ID2,               PIN(D, 4), GPIO_INPUT)
-
-/* Special straps */
-GPIO(ARM_X86,               PIN(6, 6), GPIO_OUT_LOW)  /* NC, low for power saving */
-
-/* Unused GPIOs, NC. Apply PU for power saving */
-UNUSED(PIN(5, 1))
-UNUSED(PIN(F, 3))
-UNUSED(PIN(3, 1))
-UNUSED(PIN(3, 0))
-UNUSED(PIN(2, 7))
-UNUSED(PIN(2, 6))
-UNUSED(PIN(2, 5))
-UNUSED(PIN(2, 4))
-UNUSED(PIN(2, 3))
-UNUSED(PIN(2, 2))
-UNUSED(PIN(2, 1))
-UNUSED(PIN(2, 0))
-UNUSED(PIN(1, 7))
-UNUSED(PIN(1, 6))
-UNUSED(PIN(1, 5))
-UNUSED(PIN(1, 4))
-UNUSED(PIN(1, 3))
-UNUSED(PIN(1, 2))
-UNUSED(PIN(1, 1))
-UNUSED(PIN(1, 0))
-UNUSED(PIN(0, 7))
-UNUSED(PIN(0, 6))
-UNUSED(PIN(0, 5))
-UNUSED(PIN(9, 4))
-UNUSED(PIN(9, 7))
-UNUSED(PIN(A, 7))
-UNUSED(PIN(B, 0))
-UNUSED(PIN(A, 5))
-UNUSED(PIN(3, 5))
-UNUSED(PIN(7, 2))
-UNUSED(PIN(8, 1))
-UNUSED(PIN(7, 6))
-UNUSED(PIN(3, 4))
-UNUSED(PIN(C, 5))
-UNUSED(PIN(C, 6))
-UNUSED(PIN(A, 3))
-UNUSED(PIN(8, 3))
-UNUSED(PIN(B, 1))
-UNUSED(PIN(5, 6))
-UNUSED(PIN(8, 0))
-UNUSED(PIN(D, 0))
-UNUSED(PIN(D, 1))
-UNUSED(PIN(D, 3))
-UNUSED(PIN(7, 5))
-UNUSED(PIN(8, 6))
-UNUSED(PIN(7, 3))
-UNUSED(PIN(7, 4))
-UNUSED(PIN(D, 7))
-UNUSED(PIN(8, 5))
-
-/* Alternate functions GPIO definitions */
-ALTERNATE(PIN_MASK(6, 0x30), 0, MODULE_UART, 0)            /* UART (GPIO64/65) */
-ALTERNATE(PIN_MASK(B, 0x30), 1, MODULE_I2C, 0)             /* I2C0 (GPIOB4/B5) */
-ALTERNATE(PIN_MASK(9, 0x07), 1, MODULE_I2C, 0)             /* I2C1 SDA (GPIO90), I2C2 (GPIO91/92) */
-ALTERNATE(PIN_MASK(8, 0x80), 1, MODULE_I2C, 0)             /* I2C1 SCL (GPIO87) */
-ALTERNATE(PIN_MASK(3, 0x48), 1, MODULE_I2C, 0)             /* I2C5 (GPIO33/36) */
-ALTERNATE(PIN_MASK(B, 0x0C), 1, MODULE_I2C, GPIO_SEL_1P8V) /* I2C7 (GPIOB2/B3) - 1.8V */
-ALTERNATE(PIN_MASK(4, 0x1C), 0, MODULE_ADC, 0)             /* ADC1 (GPIO44), ADC2 (GPIO43), ADC3 (GPIO42) */
-ALTERNATE(PIN_MASK(4, 0xC0), 1, MODULE_SPI, GPIO_SEL_1P8V) /* SHI_SDO (GPIO47), SHI_SDI (GPIO46) */
-ALTERNATE(PIN_MASK(5, 0x28), 1, MODULE_SPI, GPIO_SEL_1P8V) /* SHI_SCLK (GPIO55), SHI_CS# (GPIO53) */
-ALTERNATE(PIN_MASK(B, 0x80), 1, MODULE_PWM, 0)             /* PWM5 (GPIOB7) - EDP_BKLTCTL */
-/* TODO(Camera?) should have a poper config for this, PWM or not */
-ALTERNATE(PIN_MASK(C, 0x01), 1, MODULE_PWM, 0)             /* PWM6 (GPIOC0) - WCAM_EC_VSYNC */
-ALTERNATE(PIN_MASK(6, 0x01), 1, MODULE_PWM, 0)             /* PWM7 (GPIO60) - FCAM_EC_VSYNC */
-
-
diff --git a/board/homestar/led.c b/board/homestar/led.c
deleted file mode 100644
index 3950ce1ec0..0000000000
--- a/board/homestar/led.c
+++ /dev/null
@@ -1,164 +0,0 @@
-/* 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.
- *
- * Power and battery LED control.
- */
-
-#include "battery.h"
-#include "charge_manager.h"
-#include "charge_state.h"
-#include "chipset.h"
-#include "ec_commands.h"
-#include "gpio.h"
-#include "hooks.h"
-#include "host_command.h"
-#include "led_common.h"
-#include "system.h"
-#include "util.h"
-#include "extpower.h"
-
-#define LED_ONE_SEC (1000 / HOOK_TICK_INTERVAL_MS)
-/* Battery LED blinks every per 400ms */
-#define LED_HALF_ONE_SEC (500 / HOOK_TICK_INTERVAL_MS)
-
-#define BAT_LED_ON 1
-#define BAT_LED_OFF 0
-
-const enum ec_led_id supported_led_ids[] = {
-	EC_LED_ID_BATTERY_LED,
-};
-
-const int supported_led_ids_count = ARRAY_SIZE(supported_led_ids);
-
-enum led_color {
-	LED_OFF = 0,
-	LED_RED,
-	LED_GREEN,
-	LED_AMBER,
-	LED_COLOR_COUNT  /* Number of colors, not a color itself */
-};
-
-static void led_set_color(enum led_color color)
-{
-	gpio_set_level(GPIO_EC_CHG_LED_R_C0,
-		(color == LED_RED) ? BAT_LED_ON : BAT_LED_OFF);
-	gpio_set_level(GPIO_EC_CHG_LED_G_C0,
-		(color == LED_GREEN) ? BAT_LED_ON : BAT_LED_OFF);
-	if (color == LED_AMBER) {
-		gpio_set_level(GPIO_EC_CHG_LED_R_C0, BAT_LED_ON);
-		gpio_set_level(GPIO_EC_CHG_LED_G_C0, BAT_LED_ON);
-	}
-}
-
-void led_get_brightness_range(enum ec_led_id led_id, uint8_t *brightness_range)
-{
-	brightness_range[EC_LED_COLOR_RED] = 1;
-	brightness_range[EC_LED_COLOR_GREEN] = 1;
-	brightness_range[EC_LED_COLOR_AMBER] = 1;
-}
-
-int led_set_brightness(enum ec_led_id led_id, const uint8_t *brightness)
-{
-	if (brightness[EC_LED_COLOR_RED] != 0)
-		led_set_color(LED_RED);
-	else if (brightness[EC_LED_COLOR_GREEN] != 0)
-		led_set_color(LED_GREEN);
-	else if (brightness[EC_LED_COLOR_AMBER] != 0)
-		led_set_color(LED_AMBER);
-	else
-		led_set_color(LED_OFF);
-
-	return EC_SUCCESS;
-}
-
-static void board_led_set_battery(void)
-{
-	static int battery_ticks;
-	int color = LED_OFF;
-	int period = 0;
-	int percent = DIV_ROUND_NEAREST(charge_get_display_charge(), 10);
-	uint32_t chflags = charge_get_flags();
-
-	battery_ticks++;
-
-	switch (charge_get_state()) {
-	case PWR_STATE_CHARGE:
-	case PWR_STATE_CHARGE_NEAR_FULL:
-		if (chipset_in_state(CHIPSET_STATE_ON |
-					CHIPSET_STATE_ANY_SUSPEND |
-					CHIPSET_STATE_ANY_OFF)) {
-			if (percent <= BATTERY_LEVEL_CRITICAL) {
-				/* battery capa <= 5%, Red */
-				color = LED_RED;
-			} else if (percent > BATTERY_LEVEL_CRITICAL &&
-					percent < BATTERY_LEVEL_NEAR_FULL) {
-				/* 5% < battery capa < 97%, Orange */
-				color = LED_AMBER;
-			} else {
-				/* battery capa >= 97%, Green */
-				color = LED_GREEN;
-			}
-		}
-		break;
-	case PWR_STATE_DISCHARGE:
-		/* Always indicate off on when discharging */
-		color = LED_OFF;
-		break;
-	case PWR_STATE_ERROR:
-		/* Battery error, Red on 1sec off 1sec */
-		period = (1 + 1) * LED_ONE_SEC;
-		battery_ticks = battery_ticks % period;
-		if (battery_ticks < 1 * LED_ONE_SEC)
-			color = LED_RED;
-		else
-			color = LED_OFF;
-		break;
-	case PWR_STATE_IDLE: /* External power connected in IDLE */
-		if (chflags & CHARGE_FLAG_FORCE_IDLE) {
-			/* Factory mode, Red 2 sec, green 2 sec */
-			period = (2 + 2) * LED_ONE_SEC;
-			battery_ticks = battery_ticks % period;
-			if (battery_ticks < 2 * LED_ONE_SEC)
-				color = LED_RED;
-			else
-				color = LED_GREEN;
-		} else
-			color = LED_RED;
-		break;
-	default:
-		/* Other states don't alter LED behavior */
-		break;
-	}
-
-	led_set_color(color);
-}
-
-/* Called by hook task every TICK */
-static void led_tick(void)
-{
-	if (led_auto_control_is_enabled(EC_LED_ID_BATTERY_LED))
-		board_led_set_battery();
-}
-DECLARE_HOOK(HOOK_TICK, led_tick, HOOK_PRIO_DEFAULT);
-
-void led_control(enum ec_led_id led_id, enum ec_led_state state)
-{
-	enum led_color color;
-
-	if ((led_id != EC_LED_ID_RECOVERY_HW_REINIT_LED) &&
-		(led_id != EC_LED_ID_SYSRQ_DEBUG_LED))
-		return;
-
-	if (state == LED_STATE_RESET) {
-		led_auto_control(EC_LED_ID_BATTERY_LED, 1);
-		board_led_set_battery();
-		return;
-	}
-
-	color = state ? LED_RED : LED_OFF;
-
-	led_auto_control(EC_LED_ID_BATTERY_LED, 0);
-
-	led_set_color(color);
-}
diff --git a/board/homestar/vif_override.xml b/board/homestar/vif_override.xml
deleted file mode 100644
index 32736caf64..0000000000
--- a/board/homestar/vif_override.xml
+++ /dev/null
@@ -1,3 +0,0 @@
-<!-- Add VIF field overrides here. See genvif.c and the Vendor Info File
-     Definition from the USB-IF.
--->