summaryrefslogtreecommitdiff
path: root/board/elemi/board.c
diff options
context:
space:
mode:
authorDevin Lu <Devin.Lu@quantatw.com>2020-09-26 13:55:25 +0800
committerCommit Bot <commit-bot@chromium.org>2020-09-30 06:51:26 +0000
commit8190cfa178872296d8720f69c337a30f9737225d (patch)
treea60f8710c6e023972955ddfacea864626aeedb8d /board/elemi/board.c
parent947764fa21fa1e865f0064674c2ec4ed0ddea48e (diff)
downloadchrome-ec-8190cfa178872296d8720f69c337a30f9737225d.tar.gz
elemi: Initial EC image
Create the initial EC image for the elemi variant by copying the volteer 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:169409487 BRANCH=none TEST=make BOARD=elemi Signed-off-by: Devin Lu <Devin.Lu@quantatw.com> Change-Id: I44ad440cbc63d05b3e14288a50fa499134fadfc8 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2431317 Reviewed-by: Keith Short <keithshort@chromium.org>
Diffstat (limited to 'board/elemi/board.c')
-rw-r--r--board/elemi/board.c598
1 files changed, 598 insertions, 0 deletions
diff --git a/board/elemi/board.c b/board/elemi/board.c
new file mode 100644
index 0000000000..fd81a8a0c5
--- /dev/null
+++ b/board/elemi/board.c
@@ -0,0 +1,598 @@
+/* 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.
+ */
+
+/* Volteer board-specific configuration */
+#include "bb_retimer.h"
+#include "button.h"
+#include "common.h"
+#include "accelgyro.h"
+#include "cbi_ec_fw_config.h"
+#include "driver/accel_bma2x2.h"
+#include "driver/accelgyro_bmi260.h"
+#include "driver/als_tcs3400.h"
+#include "driver/bc12/pi3usb9201.h"
+#include "driver/ppc/sn5s330.h"
+#include "driver/ppc/syv682x.h"
+#include "driver/retimer/bb_retimer.h"
+#include "driver/sync.h"
+#include "driver/tcpm/ps8xxx.h"
+#include "driver/tcpm/rt1715.h"
+#include "driver/tcpm/tcpci.h"
+#include "driver/tcpm/tusb422.h"
+#include "extpower.h"
+#include "fan.h"
+#include "fan_chip.h"
+#include "gpio.h"
+#include "hooks.h"
+#include "keyboard_raw.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 "task.h"
+#include "tablet_mode.h"
+#include "throttle_ap.h"
+#include "uart.h"
+#include "usb_mux.h"
+#include "usb_pd.h"
+#include "usb_pd_tbt.h"
+#include "usb_pd_tcpm.h"
+#include "usbc_ppc.h"
+#include "util.h"
+
+#include "gpio_list.h" /* Must come after other header files. */
+
+#define CPRINTS(format, args...) cprints(CC_CHIPSET, format, ## args)
+
+/* Keyboard scan setting */
+struct keyboard_scan_config keyscan_config = {
+ /* Increase from 50 us, because KSO_02 passes through the H1. */
+ .output_settle_us = 80,
+ /* Other values should be the same as the default configuration. */
+ .debounce_down_us = 9 * MSEC,
+ .debounce_up_us = 30 * MSEC,
+ .scan_period_us = 3 * MSEC,
+ .min_post_scan_delay_us = 1000,
+ .poll_timeout_us = 100 * MSEC,
+ .actual_key_mask = {
+ 0x14, 0xff, 0xff, 0xff, 0xff, 0xf5, 0xff,
+ 0xa4, 0xff, 0xfe, 0x55, 0xfa, 0xca /* full set */
+ },
+};
+
+/******************************************************************************/
+/*
+ * FW_CONFIG defaults for Volteer if the CBI data is not initialized.
+ */
+union volteer_cbi_fw_config fw_config_defaults = {
+ .usb_db = DB_USB4_GEN2,
+};
+
+static void board_init(void)
+{
+ /* Illuminate motherboard and daughter board LEDs equally to start. */
+ pwm_enable(PWM_CH_LED4_SIDESEL, 1);
+ pwm_set_duty(PWM_CH_LED4_SIDESEL, 50);
+}
+DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
+
+__override enum tbt_compat_cable_speed board_get_max_tbt_speed(int port)
+{
+ enum ec_cfg_usb_db_type usb_db = ec_cfg_usb_db_type();
+
+ if (port == USBC_PORT_C1) {
+ if (usb_db == DB_USB4_GEN2) {
+ /*
+ * Older boards violate 205mm trace length prior
+ * to connection to the re-timer and only support up
+ * to GEN2 speeds.
+ */
+ return TBT_SS_U32_GEN1_GEN2;
+ } else if (usb_db == DB_USB4_GEN3) {
+ return TBT_SS_TBT_GEN3;
+ }
+ }
+
+ /*
+ * Thunderbolt-compatible mode not supported
+ *
+ * TODO (b/147726366): All the USB-C ports need to support same speed.
+ * Need to fix once USB-C feature set is known for Volteer.
+ */
+ return TBT_SS_RES_0;
+}
+
+__override bool board_is_tbt_usb4_port(int port)
+{
+ enum ec_cfg_usb_db_type usb_db = ec_cfg_usb_db_type();
+
+ /*
+ * Volteer reference design only supports TBT & USB4 on port 1
+ * if the USB4 DB is present.
+ *
+ * TODO (b/147732807): All the USB-C ports need to support same
+ * features. Need to fix once USB-C feature set is known for Volteer.
+ */
+ return ((port == USBC_PORT_C1)
+ && ((usb_db == DB_USB4_GEN2) || (usb_db == DB_USB4_GEN3)));
+}
+
+/******************************************************************************/
+/* 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 = GPIO_EN_PP5000_FAN,
+};
+
+/*
+ * Fan specs from datasheet:
+ * Max speed 5900 rpm (+/- 7%), minimum duty cycle 30%.
+ * Minimum speed not specified by RPM. Set minimum RPM to max speed (with
+ * margin) x 30%.
+ * 5900 x 1.07 x 0.30 = 1894, round up to 1900
+ */
+const struct fan_rpm fan_rpm_0 = {
+ .rpm_min = 1900,
+ .rpm_start = 1900,
+ .rpm_max = 5900,
+};
+
+const struct fan_t fans[FAN_CH_COUNT] = {
+ [FAN_CH_0] = {
+ .conf = &fan_conf_0,
+ .rpm = &fan_rpm_0,
+ },
+};
+
+/******************************************************************************/
+/* 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);
+
+/******************************************************************************/
+/* I2C port map configuration */
+const struct i2c_port_t i2c_ports[] = {
+ {
+ .name = "sensor",
+ .port = I2C_PORT_SENSOR,
+ .kbps = 400,
+ .scl = GPIO_EC_I2C0_SENSOR_SCL,
+ .sda = GPIO_EC_I2C0_SENSOR_SDA,
+ },
+ {
+ .name = "usb_c0",
+ .port = I2C_PORT_USB_C0,
+ .kbps = 1000,
+ .scl = GPIO_EC_I2C1_USB_C0_SCL,
+ .sda = GPIO_EC_I2C1_USB_C0_SDA,
+ },
+ {
+ .name = "usb_c1",
+ .port = I2C_PORT_USB_C1,
+ .kbps = 1000,
+ .scl = GPIO_EC_I2C2_USB_C1_SCL,
+ .sda = GPIO_EC_I2C2_USB_C1_SDA,
+ },
+ {
+ .name = "usb_1_mix",
+ .port = I2C_PORT_USB_1_MIX,
+ .kbps = 100,
+ .scl = GPIO_EC_I2C3_USB_1_MIX_SCL,
+ .sda = GPIO_EC_I2C3_USB_1_MIX_SDA,
+ },
+ {
+ .name = "power",
+ .port = I2C_PORT_POWER,
+ .kbps = 100,
+ .scl = GPIO_EC_I2C5_BATTERY_SCL,
+ .sda = GPIO_EC_I2C5_BATTERY_SDA,
+ },
+ {
+ .name = "eeprom",
+ .port = I2C_PORT_EEPROM,
+ .kbps = 400,
+ .scl = GPIO_EC_I2C7_EEPROM_PWR_SCL_R,
+ .sda = GPIO_EC_I2C7_EEPROM_PWR_SDA_R,
+ },
+};
+const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
+
+/******************************************************************************/
+/* PWM configuration */
+const struct pwm_t pwm_channels[] = {
+ [PWM_CH_LED1_BLUE] = {
+ .channel = 2,
+ .flags = PWM_CONFIG_ACTIVE_LOW | PWM_CONFIG_DSLEEP,
+ .freq = 4800,
+ },
+ [PWM_CH_LED2_GREEN] = {
+ .channel = 0,
+ .flags = PWM_CONFIG_ACTIVE_LOW | PWM_CONFIG_DSLEEP,
+ .freq = 4800,
+ },
+ [PWM_CH_LED3_RED] = {
+ .channel = 1,
+ .flags = PWM_CONFIG_ACTIVE_LOW | PWM_CONFIG_DSLEEP,
+ .freq = 4800,
+ },
+ [PWM_CH_LED4_SIDESEL] = {
+ .channel = 7,
+ .flags = PWM_CONFIG_ACTIVE_LOW | PWM_CONFIG_DSLEEP,
+ /*
+ * If using the side select to run both LEDs at the same time,
+ * the frequency should be 1/2 of the color channel PWM
+ * frequency to drive each LED equally.
+ */
+ .freq = 2400,
+ },
+ [PWM_CH_FAN] = {
+ .channel = 5,
+ .flags = PWM_CONFIG_OPEN_DRAIN,
+ .freq = 25000
+ },
+ [PWM_CH_KBLIGHT] = {
+ .channel = 3,
+ .flags = 0,
+ /*
+ * Set PWM frequency to multiple of 50 Hz and 60 Hz to prevent
+ * flicker. Higher frequencies consume similar average power to
+ * lower PWM frequencies, but higher frequencies record a much
+ * lower maximum power.
+ */
+ .freq = 2400,
+ },
+};
+BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);
+
+/******************************************************************************/
+/* Volteer specific USB daughter-board configuration */
+
+/* USBC TCPC configuration for USB3 daughter board */
+static const struct tcpc_config_t tcpc_config_p1_usb3 = {
+ .bus_type = EC_BUS_TYPE_I2C,
+ .i2c_info = {
+ .port = I2C_PORT_USB_C1,
+ .addr_flags = PS8751_I2C_ADDR1_FLAGS,
+ },
+ .flags = TCPC_FLAGS_TCPCI_REV2_0 | TCPC_FLAGS_TCPCI_REV2_0_NO_VSAFE0V,
+ .drv = &ps8xxx_tcpm_drv,
+ .usb23 = USBC_PORT_1_USB2_NUM | (USBC_PORT_1_USB3_NUM << 4),
+};
+
+/*
+ * USB3 DB mux configuration - the top level mux still needs to be set to the
+ * virtual_usb_mux_driver so the AP gets notified of mux changes and updates
+ * the TCSS configuration on state changes.
+ */
+static const struct usb_mux usbc1_usb3_db_retimer = {
+ .usb_port = USBC_PORT_C1,
+ .driver = &tcpci_tcpm_usb_mux_driver,
+ .hpd_update = &ps8xxx_tcpc_update_hpd_status,
+ .next_mux = NULL,
+};
+
+static const struct usb_mux mux_config_p1_usb3_active = {
+ .usb_port = USBC_PORT_C1,
+ .driver = &virtual_usb_mux_driver,
+ .hpd_update = &virtual_hpd_update,
+ .next_mux = &usbc1_usb3_db_retimer,
+};
+
+static const struct usb_mux mux_config_p1_usb3_passive = {
+ .usb_port = USBC_PORT_C1,
+ .driver = &virtual_usb_mux_driver,
+ .hpd_update = &virtual_hpd_update,
+};
+
+/******************************************************************************/
+/* USB-A charging control */
+
+const int usb_port_enable[USB_PORT_COUNT] = {
+ GPIO_EN_PP5000_USBA,
+};
+
+static enum gpio_signal ps8xxx_rst_odl = GPIO_USB_C1_RT_RST_ODL;
+
+static void ps8815_reset(void)
+{
+ int val;
+
+ gpio_set_level(ps8xxx_rst_odl, 0);
+ msleep(GENERIC_MAX(PS8XXX_RESET_DELAY_MS,
+ PS8815_PWR_H_RST_H_DELAY_MS));
+ gpio_set_level(ps8xxx_rst_odl, 1);
+ msleep(PS8815_FW_INIT_DELAY_MS);
+
+ /*
+ * b/144397088
+ * ps8815 firmware 0x01 needs special configuration
+ */
+
+ CPRINTS("%s: patching ps8815 registers", __func__);
+
+ if (i2c_read8(I2C_PORT_USB_C1,
+ PS8751_I2C_ADDR1_P2_FLAGS, 0x0f, &val) == EC_SUCCESS)
+ CPRINTS("ps8815: reg 0x0f was %02x", val);
+
+ if (i2c_write8(I2C_PORT_USB_C1,
+ PS8751_I2C_ADDR1_P2_FLAGS, 0x0f, 0x31) == EC_SUCCESS)
+ CPRINTS("ps8815: reg 0x0f set to 0x31");
+
+ if (i2c_read8(I2C_PORT_USB_C1,
+ PS8751_I2C_ADDR1_P2_FLAGS, 0x0f, &val) == EC_SUCCESS)
+ CPRINTS("ps8815: reg 0x0f now %02x", val);
+}
+
+void board_reset_pd_mcu(void)
+{
+ enum ec_cfg_usb_db_type usb_db = ec_cfg_usb_db_type();
+
+ /* No reset available for TCPC on port 0 */
+ /* Daughterboard specific reset for port 1 */
+ if (usb_db == DB_USB3_ACTIVE) {
+ ps8815_reset();
+ usb_mux_hpd_update(USBC_PORT_C1, 0, 0);
+ }
+}
+
+/*
+ * Set up support for the USB3 daughterboard:
+ * Parade PS8815 TCPC (integrated retimer)
+ * Diodes PI3USB9201 BC 1.2 chip (same as USB4 board)
+ * Silergy SYV682A PPC (same as USB4 board)
+ * Virtual mux with stacked retimer
+ */
+static void config_db_usb3_active(void)
+{
+ tcpc_config[USBC_PORT_C1] = tcpc_config_p1_usb3;
+ usb_muxes[USBC_PORT_C1] = mux_config_p1_usb3_active;
+}
+
+/*
+ * Set up support for the passive USB3 daughterboard:
+ * TUSB422 TCPC (already the default)
+ * PI3USB9201 BC 1.2 chip (already the default)
+ * Silergy SYV682A PPC (already the default)
+ * Virtual mux without stacked retimer
+ */
+
+static void config_db_usb3_passive(void)
+{
+ usb_muxes[USBC_PORT_C1] = mux_config_p1_usb3_passive;
+}
+
+static void config_port_discrete_tcpc(int port)
+{
+ /*
+ * Support 2 Pin-to-Pin compatible parts: TUSB422 and RT1715, for
+ * simplicity allow either and decide at runtime which we are using.
+ * Default to TUSB422, and switch to RT1715 if it is on the I2C bus and
+ * the VID matches.
+ */
+
+ int regval;
+
+ if (i2c_read16(port ? I2C_PORT_USB_C1 : I2C_PORT_USB_C0,
+ RT1715_I2C_ADDR_FLAGS, TCPC_REG_VENDOR_ID,
+ &regval) == EC_SUCCESS) {
+ if (regval == RT1715_VENDOR_ID) {
+ CPRINTS("C%d: RT1715 detected", port);
+ tcpc_config[port].i2c_info.addr_flags =
+ RT1715_I2C_ADDR_FLAGS;
+ tcpc_config[port].drv = &rt1715_tcpm_drv;
+ return;
+ }
+ }
+ CPRINTS("C%d: Default to TUSB422", port);
+}
+
+static const char *db_type_prefix = "USB DB type: ";
+__override void board_cbi_init(void)
+{
+ enum ec_cfg_usb_db_type usb_db = ec_cfg_usb_db_type();
+
+ /* Reconfigure Volteer GPIOs based on the board ID */
+ if (get_board_id() == 0) {
+ CPRINTS("Configuring GPIOs for board ID 0");
+ CPRINTS("VOLUME_UP button disabled");
+
+ /* Reassign USB_C1_RT_RST_ODL */
+ bb_controls[USBC_PORT_C1].retimer_rst_gpio =
+ GPIO_USB_C1_RT_RST_ODL_BOARDID_0;
+ ps8xxx_rst_odl = GPIO_USB_C1_RT_RST_ODL_BOARDID_0;
+ }
+ config_port_discrete_tcpc(0);
+ switch (usb_db) {
+ case DB_USB_ABSENT:
+ CPRINTS("%sNone", db_type_prefix);
+ break;
+ case DB_USB4_GEN2:
+ config_port_discrete_tcpc(1);
+ CPRINTS("%sUSB4 Gen1/2", db_type_prefix);
+ break;
+ case DB_USB4_GEN3:
+ config_port_discrete_tcpc(1);
+ CPRINTS("%sUSB4 Gen3", db_type_prefix);
+ break;
+ case DB_USB3_ACTIVE:
+ config_db_usb3_active();
+ CPRINTS("%sUSB3 Active", db_type_prefix);
+ break;
+ case DB_USB3_PASSIVE:
+ config_db_usb3_passive();
+ config_port_discrete_tcpc(1);
+ CPRINTS("%sUSB3 Passive", db_type_prefix);
+ break;
+ default:
+ CPRINTS("%sID %d not supported", db_type_prefix, usb_db);
+ }
+
+ if ((!IS_ENABLED(TEST_BUILD) && !ec_cfg_has_numeric_pad()) ||
+ get_board_id() <= 2)
+ keyboard_raw_set_cols(KEYBOARD_COLS_NO_KEYPAD);
+}
+
+/******************************************************************************/
+/* USBC PPC configuration */
+struct ppc_config_t ppc_chips[] = {
+ [USBC_PORT_C0] = {
+ .i2c_port = I2C_PORT_USB_C0,
+ .i2c_addr_flags = SN5S330_ADDR0_FLAGS,
+ .drv = &sn5s330_drv,
+ },
+ [USBC_PORT_C1] = {
+ .i2c_port = I2C_PORT_USB_C1,
+ .i2c_addr_flags = SYV682X_ADDR0_FLAGS,
+ .drv = &syv682x_drv,
+ },
+};
+BUILD_ASSERT(ARRAY_SIZE(ppc_chips) == USBC_PORT_COUNT);
+unsigned int ppc_cnt = ARRAY_SIZE(ppc_chips);
+
+/******************************************************************************/
+/* PPC support routines */
+void ppc_interrupt(enum gpio_signal signal)
+{
+ switch (signal) {
+ case GPIO_USB_C0_PPC_INT_ODL:
+ sn5s330_interrupt(USBC_PORT_C0);
+ break;
+ case GPIO_USB_C1_PPC_INT_ODL:
+ syv682x_interrupt(USBC_PORT_C1);
+ default:
+ break;
+ }
+}
+
+/******************************************************************************/
+/* BC1.2 charger detect configuration */
+const struct pi3usb9201_config_t pi3usb9201_bc12_chips[] = {
+ [USBC_PORT_C0] = {
+ .i2c_port = I2C_PORT_USB_C0,
+ .i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS,
+ },
+ [USBC_PORT_C1] = {
+ .i2c_port = I2C_PORT_USB_C1,
+ .i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS,
+ },
+};
+BUILD_ASSERT(ARRAY_SIZE(pi3usb9201_bc12_chips) == USBC_PORT_COUNT);
+
+/******************************************************************************/
+/* USBC TCPC configuration */
+struct tcpc_config_t tcpc_config[] = {
+ [USBC_PORT_C0] = {
+ .bus_type = EC_BUS_TYPE_I2C,
+ .i2c_info = {
+ .port = I2C_PORT_USB_C0,
+ .addr_flags = TUSB422_I2C_ADDR_FLAGS,
+ },
+ .drv = &tusb422_tcpm_drv,
+ .usb23 = USBC_PORT_0_USB2_NUM | (USBC_PORT_0_USB3_NUM << 4),
+ },
+ [USBC_PORT_C1] = {
+ .bus_type = EC_BUS_TYPE_I2C,
+ .i2c_info = {
+ .port = I2C_PORT_USB_C1,
+ .addr_flags = TUSB422_I2C_ADDR_FLAGS,
+ },
+ .drv = &tusb422_tcpm_drv,
+ .usb23 = USBC_PORT_1_USB2_NUM | (USBC_PORT_1_USB3_NUM << 4),
+ },
+};
+BUILD_ASSERT(ARRAY_SIZE(tcpc_config) == USBC_PORT_COUNT);
+BUILD_ASSERT(CONFIG_USB_PD_PORT_MAX_COUNT == USBC_PORT_COUNT);
+
+/******************************************************************************/
+/* USBC mux configuration - Tiger Lake includes internal mux */
+struct usb_mux usbc1_usb4_db_retimer = {
+ .usb_port = USBC_PORT_C1,
+ .driver = &bb_usb_retimer,
+ .i2c_port = I2C_PORT_USB_1_MIX,
+ .i2c_addr_flags = USBC_PORT_C1_BB_RETIMER_I2C_ADDR,
+};
+struct usb_mux usb_muxes[] = {
+ [USBC_PORT_C0] = {
+ .usb_port = USBC_PORT_C0,
+ .driver = &virtual_usb_mux_driver,
+ .hpd_update = &virtual_hpd_update,
+ },
+ [USBC_PORT_C1] = {
+ .usb_port = USBC_PORT_C1,
+ .driver = &virtual_usb_mux_driver,
+ .hpd_update = &virtual_hpd_update,
+ .next_mux = &usbc1_usb4_db_retimer,
+ },
+};
+BUILD_ASSERT(ARRAY_SIZE(usb_muxes) == USBC_PORT_COUNT);
+
+struct bb_usb_control bb_controls[] = {
+ [USBC_PORT_C0] = {
+ /* USB-C port 0 doesn't have a retimer */
+ },
+ [USBC_PORT_C1] = {
+ .usb_ls_en_gpio = GPIO_USB_C1_LS_EN,
+ .retimer_rst_gpio = GPIO_USB_C1_RT_RST_ODL,
+ },
+};
+BUILD_ASSERT(ARRAY_SIZE(bb_controls) == USBC_PORT_COUNT);
+
+static void board_tcpc_init(void)
+{
+ /* Don't reset TCPCs after initial reset */
+ if (!system_jumped_late())
+ board_reset_pd_mcu();
+
+ /* Enable PPC interrupts. */
+ gpio_enable_interrupt(GPIO_USB_C0_PPC_INT_ODL);
+ gpio_enable_interrupt(GPIO_USB_C1_PPC_INT_ODL);
+
+ /* Enable TCPC interrupts. */
+ gpio_enable_interrupt(GPIO_USB_C0_TCPC_INT_ODL);
+ gpio_enable_interrupt(GPIO_USB_C1_TCPC_INT_ODL);
+
+ /* Enable BC1.2 interrupts. */
+ gpio_enable_interrupt(GPIO_USB_C0_BC12_INT_ODL);
+ gpio_enable_interrupt(GPIO_USB_C1_BC12_INT_ODL);
+}
+DECLARE_HOOK(HOOK_INIT, board_tcpc_init, HOOK_PRIO_INIT_CHIPSET);
+
+/******************************************************************************/
+/* TCPC support routines */
+uint16_t tcpc_get_alert_status(void)
+{
+ uint16_t status = 0;
+
+ /*
+ * Check which port has the ALERT line set
+ */
+ if (!gpio_get_level(GPIO_USB_C0_TCPC_INT_ODL))
+ status |= PD_STATUS_TCPC_ALERT_0;
+ if (!gpio_get_level(GPIO_USB_C1_TCPC_INT_ODL))
+ status |= PD_STATUS_TCPC_ALERT_1;
+
+ return status;
+}
+
+int ppc_get_alert_status(int port)
+{
+ if (port == USBC_PORT_C0)
+ return gpio_get_level(GPIO_USB_C0_PPC_INT_ODL) == 0;
+ else
+ return gpio_get_level(GPIO_USB_C1_PPC_INT_ODL) == 0;
+}