@@ -31,7 +31,7 @@ ice-y := ice_main.o \
ice_tc_lib.o
ice-$(CONFIG_PCI_IOV) += ice_virtchnl_allowlist.o
ice-$(CONFIG_PCI_IOV) += ice_virtchnl_pf.o ice_sriov.o ice_virtchnl_fdir.o
-ice-$(CONFIG_PTP_1588_CLOCK) += ice_ptp.o ice_ptp_hw.o
+ice-$(CONFIG_PTP_1588_CLOCK) += ice_ptp.o ice_ptp_hw.o ice_gnss.o
ice-$(CONFIG_DCB) += ice_dcb.o ice_dcb_nl.o ice_dcb_lib.o
ice-$(CONFIG_RFS_ACCEL) += ice_arfs.o
ice-$(CONFIG_XDP_SOCKETS) += ice_xsk.o
@@ -72,6 +72,7 @@
#include "ice_repr.h"
#include "ice_eswitch.h"
#include "ice_lag.h"
+#include "ice_gnss.h"
#define ICE_BAR0 0
#define ICE_REQ_DESC_MULTIPLE 32
@@ -184,6 +185,7 @@
enum ice_feature {
ICE_F_DSCP,
ICE_F_SMA_CTRL,
+ ICE_F_GNSS,
ICE_F_MAX
};
@@ -482,6 +484,7 @@ enum ice_pf_flags {
ICE_FLAG_VF_TRUE_PROMISC_ENA,
ICE_FLAG_MDD_AUTO_RESET_VF,
ICE_FLAG_LINK_LENIENT_MODE_ENA,
+ ICE_FLAG_GNSS, /* GNSS successfully initialized */
ICE_PF_FLAGS_NBITS /* must be last */
};
@@ -545,6 +548,9 @@ struct ice_pf {
struct mutex tc_mutex; /* lock to protect TC changes */
u32 msg_enable;
struct ice_ptp ptp;
+ struct tty_driver *ice_gnss_tty_driver;
+ struct tty_port gnss_tty_port;
+ struct gnss_serial *gnss_serial;
u16 num_rdma_msix; /* Total MSIX vectors for RDMA driver */
u16 rdma_base_vector;
@@ -1339,6 +1339,24 @@ struct ice_aqc_get_link_topo {
u8 rsvd[9];
};
+/* Read I2C (direct, 0x06E2) */
+struct ice_aqc_i2c {
+ struct ice_aqc_link_topo_addr topo_addr;
+ __le16 i2c_addr;
+ u8 i2c_params;
+#define ICE_AQC_I2C_DATA_SIZE_S 0
+#define ICE_AQC_I2C_DATA_SIZE_M (0xF << ICE_AQC_I2C_DATA_SIZE_S)
+#define ICE_AQC_I2C_USE_REPEATED_START BIT(7)
+ u8 rsvd;
+ __le16 i2c_bus_addr;
+ u8 rsvd2[4];
+};
+
+/* Read I2C Response (direct, 0x06E2) */
+struct ice_aqc_read_i2c_resp {
+ u8 i2c_data[16];
+};
+
/* Set Port Identification LED (direct, 0x06E9) */
struct ice_aqc_set_port_id_led {
u8 lport_num;
@@ -2049,6 +2067,8 @@ struct ice_aq_desc {
struct ice_aqc_get_link_status get_link_status;
struct ice_aqc_event_lan_overflow lan_overflow;
struct ice_aqc_get_link_topo get_link_topo;
+ struct ice_aqc_i2c read_i2c;
+ struct ice_aqc_read_i2c_resp read_i2c_resp;
} params;
};
@@ -2160,6 +2180,7 @@ enum ice_adminq_opc {
ice_aqc_opc_set_event_mask = 0x0613,
ice_aqc_opc_set_mac_lb = 0x0620,
ice_aqc_opc_get_link_topo = 0x06E0,
+ ice_aqc_opc_read_i2c = 0x06E2,
ice_aqc_opc_set_port_id_led = 0x06E9,
ice_aqc_opc_set_gpio = 0x06EC,
ice_aqc_opc_get_gpio = 0x06ED,
@@ -4758,6 +4758,59 @@ ice_sched_query_elem(struct ice_hw *hw, u32 node_teid,
return status;
}
+/**
+ * ice_aq_read_i2c
+ * @hw: pointer to the hw struct
+ * @topo_addr: topology address for a device to communicate with
+ * @bus_addr: 7-bit I2C bus address
+ * @addr: I2C memory address (I2C offset) with up to 16 bits
+ * @params: I2C parameters: bit [7] - Repeated start,
+ * bits [6:5] data offset size,
+ * bit [4] - I2C address type,
+ * bits [3:0] - data size to read (0-16 bytes)
+ * @data: pointer to data (0 to 16 bytes) to be read from the I2C device
+ * @cd: pointer to command details structure or NULL
+ *
+ * Read I2C (0x06E2)
+ */
+int ice_aq_read_i2c(struct ice_hw *hw, struct ice_aqc_link_topo_addr topo_addr,
+ u16 bus_addr, __le16 addr, u8 params, u8 *data,
+ struct ice_sq_cd *cd)
+{
+ struct ice_aq_desc desc = { 0 };
+ struct ice_aqc_i2c *cmd;
+ u8 data_size;
+ int status;
+
+ ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_read_i2c);
+ cmd = &desc.params.read_i2c;
+
+ if (!data)
+ return -EINVAL;
+
+ data_size = (params & ICE_AQC_I2C_DATA_SIZE_M) >>
+ ICE_AQC_I2C_DATA_SIZE_S;
+
+ cmd->i2c_bus_addr = cpu_to_le16(bus_addr);
+ cmd->topo_addr = topo_addr;
+ cmd->i2c_params = params;
+ cmd->i2c_addr = addr;
+
+ status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
+ if (!status) {
+ struct ice_aqc_read_i2c_resp *resp;
+ u8 i;
+
+ resp = &desc.params.read_i2c_resp;
+ for (i = 0; i < data_size; i++) {
+ *data = resp->i2c_data[i];
+ data++;
+ }
+ }
+
+ return status;
+}
+
/**
* ice_aq_set_driver_param - Set driver parameter to share via firmware
* @hw: pointer to the HW struct
@@ -205,5 +205,8 @@ ice_aq_set_lldp_mib(struct ice_hw *hw, u8 mib_type, void *buf, u16 buf_size,
bool ice_fw_supports_lldp_fltr_ctrl(struct ice_hw *hw);
int
ice_lldp_fltr_add_remove(struct ice_hw *hw, u16 vsi_num, bool add);
+int ice_aq_read_i2c(struct ice_hw *hw, struct ice_aqc_link_topo_addr topo_addr,
+ u16 bus_addr, __le16 addr, u8 params, u8 *data,
+ struct ice_sq_cd *cd);
bool ice_fw_supports_report_dflt_cfg(struct ice_hw *hw);
#endif /* _ICE_COMMON_H_ */
new file mode 100644
@@ -0,0 +1,371 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2018-2021, Intel Corporation. */
+
+#include "ice.h"
+#include "ice_lib.h"
+#include <linux/tty_driver.h>
+
+/**
+ * ice_gnss_read - Read data from internal GNSS module
+ * @work: GNSS read work structure
+ *
+ * Read the data from internal GNSS receiver, number of bytes read will be
+ * returned in *read_data parameter.
+ */
+static void ice_gnss_read(struct kthread_work *work)
+{
+ struct gnss_serial *gnss = container_of(work, struct gnss_serial,
+ read_work.work);
+ struct ice_aqc_link_topo_addr link_topo;
+ u8 i2c_params, bytes_read;
+ struct tty_port *port;
+ struct ice_pf *pf;
+ struct ice_hw *hw;
+ __be16 data_len_b;
+ char *buf = NULL;
+ u16 i, data_len;
+ int err = 0;
+
+ pf = gnss->back;
+ if (!pf || !&pf->hw || !gnss->tty || !gnss->tty->port) {
+ err = -EFAULT;
+ goto exit;
+ }
+
+ hw = &pf->hw;
+ port = gnss->tty->port;
+
+ buf = (char *)get_zeroed_page(GFP_KERNEL);
+ if (!buf) {
+ err = -ENOMEM;
+ goto exit;
+ }
+
+ memset(&link_topo, 0, sizeof(struct ice_aqc_link_topo_addr));
+ link_topo.topo_params.index = ICE_E810T_GNSS_I2C_BUS;
+ link_topo.topo_params.node_type_ctx |=
+ ICE_AQC_LINK_TOPO_NODE_CTX_OVERRIDE <<
+ ICE_AQC_LINK_TOPO_NODE_CTX_S;
+
+ i2c_params = ICE_GNSS_UBX_DATA_LEN_WIDTH |
+ ICE_AQC_I2C_USE_REPEATED_START;
+
+ /* Read data length in a loop, when it's not 0 the data is ready */
+ for (i = 0; i < ICE_MAX_UBX_READ_TRIES; i++) {
+ err = ice_aq_read_i2c(hw, link_topo, ICE_GNSS_UBX_I2C_BUS_ADDR,
+ cpu_to_le16(ICE_GNSS_UBX_DATA_LEN_H),
+ i2c_params, (u8 *)&data_len_b, NULL);
+ if (err)
+ goto exit_buf;
+
+ data_len = be16_to_cpu(data_len_b);
+ if (data_len != 0 && data_len != U16_MAX)
+ break;
+
+ mdelay(10);
+ }
+
+ data_len = min(data_len, (u16)PAGE_SIZE);
+ data_len = tty_buffer_request_room(port, data_len);
+ if (!data_len) {
+ err = -ENOMEM;
+ goto exit_buf;
+ }
+
+ /* Read received data */
+ for (i = 0; i < data_len; i += bytes_read) {
+ u16 bytes_left = data_len - i;
+
+ bytes_read = bytes_left < ICE_MAX_I2C_DATA_SIZE ? bytes_left :
+ ICE_MAX_I2C_DATA_SIZE;
+
+ err = ice_aq_read_i2c(hw, link_topo, ICE_GNSS_UBX_I2C_BUS_ADDR,
+ cpu_to_le16(ICE_GNSS_UBX_EMPTY_DATA),
+ bytes_read, &buf[i], NULL);
+ if (err)
+ goto exit_buf;
+ }
+
+ /* Send the data to the tty layer for users to read. This doesn't
+ * actually push the data through unless tty->low_latency is set.
+ */
+ tty_insert_flip_string(port, buf, i);
+ tty_flip_buffer_push(port);
+
+exit_buf:
+ free_page((unsigned long)buf);
+ kthread_queue_delayed_work(gnss->kworker, &gnss->read_work,
+ ICE_GNSS_TIMER_DELAY_TIME);
+exit:
+ if (err)
+ dev_dbg(ice_pf_to_dev(pf), "GNSS failed to read err=%d\n", err);
+}
+
+/**
+ * ice_gnss_struct_init - Initialize GNSS structure for the TTY
+ * @pf: Board private structure
+ */
+static struct gnss_serial *ice_gnss_struct_init(struct ice_pf *pf)
+{
+ struct device *dev = ice_pf_to_dev(pf);
+ struct kthread_worker *kworker;
+ struct gnss_serial *gnss;
+
+ gnss = kzalloc(sizeof(*gnss), GFP_KERNEL);
+ if (!gnss)
+ return NULL;
+
+ mutex_init(&gnss->gnss_mutex);
+ gnss->open_count = 0;
+ gnss->back = pf;
+ pf->gnss_serial = gnss;
+
+ kthread_init_delayed_work(&gnss->read_work, ice_gnss_read);
+ /* Allocate a kworker for handling work required for the GNSS TTY
+ * writes.
+ */
+ kworker = kthread_create_worker(0, "ice-gnss-%s", dev_name(dev));
+ if (!kworker) {
+ kfree(gnss);
+ return NULL;
+ }
+
+ gnss->kworker = kworker;
+
+ return gnss;
+}
+
+/**
+ * ice_gnss_tty_open - Initialize GNSS structures on TTY device open
+ * @tty: pointer to the tty_struct
+ * @filp: pointer to the file
+ *
+ * This routine is mandatory. If this routine is not filled in, the attempted
+ * open will fail with ENODEV.
+ */
+static int ice_gnss_tty_open(struct tty_struct *tty, struct file *filp)
+{
+ struct gnss_serial *gnss;
+ struct ice_pf *pf;
+
+ pf = (struct ice_pf *)tty->driver->driver_state;
+ if (!pf)
+ return -EFAULT;
+
+ /* Clear the pointer in case something fails */
+ tty->driver_data = NULL;
+ /* Get the serial object associated with this tty pointer */
+ gnss = pf->gnss_serial;
+
+ if (!gnss) {
+ /* Initialize GNSS struct on the first device open */
+ gnss = ice_gnss_struct_init(pf);
+ if (!gnss)
+ return -ENOMEM;
+ }
+
+ mutex_lock(&gnss->gnss_mutex);
+
+ /* Save our structure within the tty structure */
+ tty->driver_data = gnss;
+ gnss->tty = tty;
+ gnss->open_count++;
+ kthread_queue_delayed_work(gnss->kworker, &gnss->read_work, 0);
+
+ mutex_unlock(&gnss->gnss_mutex);
+
+ return 0;
+}
+
+/**
+ * ice_gnss_tty_close - Cleanup GNSS structures on tty device close
+ * @tty: pointer to the tty_struct
+ * @filp: pointer to the file
+ */
+static void ice_gnss_tty_close(struct tty_struct *tty, struct file *filp)
+{
+ struct gnss_serial *gnss = tty->driver_data;
+ struct ice_pf *pf;
+
+ if (!gnss)
+ return;
+
+ pf = (struct ice_pf *)tty->driver->driver_state;
+ if (!pf)
+ return;
+
+ mutex_lock(&gnss->gnss_mutex);
+
+ if (!gnss->open_count) {
+ /* Port was never opened */
+ dev_err(ice_pf_to_dev(pf), "GNSS port not opened\n");
+ goto exit;
+ }
+
+ gnss->open_count--;
+ if (gnss->open_count <= 0) {
+ /* Port is in shutdown state */
+ kthread_cancel_delayed_work_sync(&gnss->read_work);
+ }
+exit:
+ mutex_unlock(&gnss->gnss_mutex);
+}
+
+/**
+ * ice_gnss_tty_write - Dummy TTY write function to avoid kernel panic
+ * @tty: pointer to the tty_struct
+ * @buf: pointer to the user data
+ * @cnt: the number of characters that was able to be sent to the hardware (or
+ * queued to be sent at a later time)
+ */
+static int
+ice_gnss_tty_write(struct tty_struct *tty, const unsigned char *buf, int cnt)
+{
+ return 0;
+}
+
+/**
+ * ice_gnss_tty_write_room - Dummy TTY write_room function to avoid kernel panic
+ * @tty: pointer to the tty_struct
+ */
+static unsigned int ice_gnss_tty_write_room(struct tty_struct *tty)
+{
+ return 0;
+}
+
+static const struct tty_operations tty_gps_ops = {
+ .open = ice_gnss_tty_open,
+ .close = ice_gnss_tty_close,
+ .write = ice_gnss_tty_write,
+ .write_room = ice_gnss_tty_write_room,
+};
+
+/**
+ * ice_gnss_create_tty_driver - Create a TTY driver for GNSS
+ * @pf: Board private structure
+ */
+static struct tty_driver *ice_gnss_create_tty_driver(struct ice_pf *pf)
+{
+ struct device *dev = ice_pf_to_dev(pf);
+ const int ICE_TTYDRV_NAME_MAX = 14;
+ struct tty_driver *tty_driver;
+ char *ttydrv_name;
+ int err;
+
+ tty_driver = tty_alloc_driver(1, TTY_DRIVER_REAL_RAW);
+ if (!tty_driver) {
+ dev_err(ice_pf_to_dev(pf), "Failed to allocate memory for GNSS TTY\n");
+ return NULL;
+ }
+
+ ttydrv_name = kzalloc(ICE_TTYDRV_NAME_MAX, GFP_KERNEL);
+ if (!ttydrv_name) {
+ tty_driver_kref_put(tty_driver);
+ return NULL;
+ }
+
+ snprintf(ttydrv_name, ICE_TTYDRV_NAME_MAX, "ttyGNSS_%02x%02x_",
+ (u8)pf->pdev->bus->number, (u8)PCI_SLOT(pf->pdev->devfn));
+
+ /* Initialize the tty driver*/
+ tty_driver->owner = THIS_MODULE;
+ tty_driver->driver_name = dev_driver_string(dev);
+ tty_driver->name = (const char *)ttydrv_name;
+ tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
+ tty_driver->subtype = SERIAL_TYPE_NORMAL;
+ tty_driver->init_termios = tty_std_termios;
+ tty_driver->init_termios.c_iflag &= ~INLCR;
+ tty_driver->init_termios.c_iflag |= IGNCR;
+ tty_driver->init_termios.c_oflag &= ~OPOST;
+ tty_driver->init_termios.c_lflag &= ~ICANON;
+ tty_driver->init_termios.c_cflag &= ~(CSIZE | CBAUD | CBAUDEX);
+ /* baud rate 9600 */
+ tty_termios_encode_baud_rate(&tty_driver->init_termios, 9600, 9600);
+ tty_driver->driver_state = pf;
+ tty_set_operations(tty_driver, &tty_gps_ops);
+
+ pf->gnss_serial = NULL;
+
+ tty_port_init(&pf->gnss_tty_port);
+ tty_port_link_device(&pf->gnss_tty_port, tty_driver, 0);
+
+ err = tty_register_driver(tty_driver);
+ if (err) {
+ dev_err(ice_pf_to_dev(pf),
+ "Failed to register TTY driver err=%d\n", err);
+
+ tty_port_destroy(&pf->gnss_tty_port);
+ kfree(ttydrv_name);
+ tty_driver_kref_put(pf->ice_gnss_tty_driver);
+
+ return NULL;
+ }
+
+ return tty_driver;
+}
+
+/**
+ * ice_gnss_init - Initialize GNSS TTY support
+ * @pf: Board private structure
+ */
+void ice_gnss_init(struct ice_pf *pf)
+{
+ struct tty_driver *tty_driver;
+
+ tty_driver = ice_gnss_create_tty_driver(pf);
+ if (!tty_driver)
+ return;
+
+ pf->ice_gnss_tty_driver = tty_driver;
+
+ set_bit(ICE_FLAG_GNSS, pf->flags);
+ dev_info(ice_pf_to_dev(pf), "GNSS TTY init successful\n");
+}
+
+/**
+ * ice_gnss_exit - Disable GNSS TTY support
+ * @pf: Board private structure
+ */
+void ice_gnss_exit(struct ice_pf *pf)
+{
+ if (!test_bit(ICE_FLAG_GNSS, pf->flags) || !pf->ice_gnss_tty_driver)
+ return;
+
+ tty_port_destroy(&pf->gnss_tty_port);
+
+ if (pf->gnss_serial) {
+ struct gnss_serial *gnss = pf->gnss_serial;
+
+ kthread_cancel_delayed_work_sync(&gnss->read_work);
+ kfree(gnss);
+ pf->gnss_serial = NULL;
+ }
+
+ tty_unregister_driver(pf->ice_gnss_tty_driver);
+ kfree(pf->ice_gnss_tty_driver->name);
+ tty_driver_kref_put(pf->ice_gnss_tty_driver);
+ pf->ice_gnss_tty_driver = NULL;
+}
+
+/**
+ * ice_gnss_is_gps_present - Check if GPS HW is present
+ * @hw: pointer to HW struct
+ */
+bool ice_gnss_is_gps_present(struct ice_hw *hw)
+{
+ if (!hw->func_caps.ts_func_info.src_tmr_owned)
+ return false;
+
+ if (ice_is_e810t(hw)) {
+ int err;
+ u8 data;
+
+ err = ice_read_pca9575_reg_e810t(hw, ICE_PCA9575_P0_IN, &data);
+ if (err || !!(data & ICE_E810T_P0_GNSS_PRSNT_N))
+ return false;
+ } else {
+ return false;
+ }
+
+ return true;
+}
new file mode 100644
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2018-2021, Intel Corporation. */
+
+#ifndef _ICE_GNSS_H_
+#define _ICE_GNSS_H_
+
+#include <linux/tty.h>
+#include <linux/tty_flip.h>
+
+#define ICE_E810T_GNSS_I2C_BUS 0x2
+#define ICE_GNSS_UBX_I2C_BUS_ADDR 0x42
+/* Data length register is big endian */
+#define ICE_GNSS_UBX_DATA_LEN_H 0xFD
+#define ICE_GNSS_UBX_DATA_LEN_WIDTH 2
+#define ICE_GNSS_UBX_EMPTY_DATA 0xFF
+#define ICE_GNSS_TIMER_DELAY_TIME (HZ / 10) /* 0.1 second per message */
+#define ICE_MAX_I2C_DATA_SIZE (ICE_AQC_I2C_DATA_SIZE_M >> \
+ ICE_AQC_I2C_DATA_SIZE_S)
+#define ICE_MAX_UBX_READ_TRIES 255
+
+/**
+ * struct gnss_serial - data used to initialize GNSS TTY port
+ * @back: back pointer to PF
+ * @tty: pointer to the tty for this device
+ * @open_count: number of times this port has been opened
+ * @gnss_mutex: gnss_mutex used to protect GNSS serial operations
+ * @kworker: kwork thread for handling periodic work
+ * @read_work: read_work function for handling GNSS reads
+ */
+struct gnss_serial {
+ struct ice_pf *back;
+ struct tty_struct *tty;
+ int open_count;
+ struct mutex gnss_mutex; /* protects GNSS serial structure */
+ struct kthread_worker *kworker;
+ struct kthread_delayed_work read_work;
+};
+
+#if IS_ENABLED(CONFIG_PTP_1588_CLOCK)
+void ice_gnss_init(struct ice_pf *pf);
+void ice_gnss_exit(struct ice_pf *pf);
+bool ice_gnss_is_gps_present(struct ice_hw *hw);
+#else
+static inline void ice_gnss_init(struct ice_pf *pf) { }
+static inline void ice_gnss_exit(struct ice_pf *pf) { }
+static inline bool ice_gnss_is_gps_present(struct ice_hw *hw)
+{
+ return false;
+}
+#endif /* IS_ENABLED(CONFIG_PTP_1588_CLOCK) */
+#endif /* _ICE_GNSS_H_ */
@@ -4142,8 +4142,11 @@ void ice_init_feature_support(struct ice_pf *pf)
case ICE_DEV_ID_E810C_QSFP:
case ICE_DEV_ID_E810C_SFP:
ice_set_feature_support(pf, ICE_F_DSCP);
- if (ice_is_e810t(&pf->hw))
+ if (ice_is_e810t(&pf->hw)) {
ice_set_feature_support(pf, ICE_F_SMA_CTRL);
+ if (ice_gnss_is_gps_present(&pf->hw))
+ ice_set_feature_support(pf, ICE_F_GNSS);
+ }
break;
default:
break;
@@ -570,6 +570,9 @@ ice_prepare_for_reset(struct ice_pf *pf, enum ice_reset_req reset_type)
if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags))
ice_ptp_release(pf);
+ if (ice_is_feature_supported(pf, ICE_F_GNSS))
+ ice_gnss_exit(pf);
+
if (hw->port_info)
ice_sched_clear_port(hw->port_info);
@@ -4687,6 +4690,9 @@ ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags))
ice_ptp_init(pf);
+ if (ice_is_feature_supported(pf, ICE_F_GNSS))
+ ice_gnss_init(pf);
+
/* Note: Flow director init failure is non-fatal to load */
if (ice_init_fdir(pf))
dev_err(dev, "could not initialize flow director\n");
@@ -4862,6 +4868,8 @@ static void ice_remove(struct pci_dev *pdev)
ice_deinit_lag(pf);
if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags))
ice_ptp_release(pf);
+ if (ice_is_feature_supported(pf, ICE_F_GNSS))
+ ice_gnss_exit(pf);
if (!ice_is_safe_mode(pf))
ice_remove_arfs(pf);
ice_setup_mc_magic_wake(pf);
@@ -6725,6 +6733,9 @@ static void ice_rebuild(struct ice_pf *pf, enum ice_reset_req reset_type)
if (test_bit(ICE_FLAG_PTP_SUPPORTED, pf->flags))
ice_ptp_init(pf);
+ if (ice_is_feature_supported(pf, ICE_F_GNSS))
+ ice_gnss_init(pf);
+
/* rebuild PF VSI */
err = ice_vsi_rebuild_by_type(pf, ICE_VSI_PF);
if (err) {
@@ -3250,6 +3250,39 @@ int ice_write_sma_ctrl_e810t(struct ice_hw *hw, u8 data)
return status;
}
+/**
+ * ice_read_pca9575_reg_e810t
+ * @hw: pointer to the hw struct
+ * @offset: GPIO controller register offset
+ * @data: pointer to data to be read from the GPIO controller
+ *
+ * Read the register from the GPIO controller
+ */
+int ice_read_pca9575_reg_e810t(struct ice_hw *hw, u8 offset, u8 *data)
+{
+ struct ice_aqc_link_topo_addr link_topo;
+ __le16 addr;
+ u16 handle;
+ int err;
+
+ memset(&link_topo, 0, sizeof(link_topo));
+
+ err = ice_get_pca9575_handle(hw, &handle);
+ if (err)
+ return err;
+
+ link_topo.handle = cpu_to_le16(handle);
+ link_topo.topo_params.node_type_ctx =
+ (ICE_AQC_LINK_TOPO_NODE_CTX_PROVIDED <<
+ ICE_AQC_LINK_TOPO_NODE_CTX_S);
+
+ addr = cpu_to_le16((u16)offset);
+
+ err = ice_aq_read_i2c(hw, link_topo, 0, addr, 1, data, NULL);
+
+ return err;
+}
+
/**
* ice_is_pca9575_present
* @hw: pointer to the hw struct
@@ -191,6 +191,7 @@ int ice_phy_exit_bypass_e822(struct ice_hw *hw, u8 port);
int ice_ptp_init_phy_e810(struct ice_hw *hw);
int ice_read_sma_ctrl_e810t(struct ice_hw *hw, u8 *data);
int ice_write_sma_ctrl_e810t(struct ice_hw *hw, u8 data);
+int ice_read_pca9575_reg_e810t(struct ice_hw *hw, u8 offset, u8 *data);
bool ice_is_pca9575_present(struct ice_hw *hw);
#define PFTSYN_SEM_BYTES 4
@@ -443,4 +444,10 @@ bool ice_is_pca9575_present(struct ice_hw *hw);
#define ICE_SMA_MAX_BIT_E810T 7
#define ICE_PCA9575_P1_OFFSET 8
+/* E810T PCA9575 IO controller registers */
+#define ICE_PCA9575_P0_IN 0x0
+
+/* E810T PCA9575 IO controller pin control */
+#define ICE_E810T_P0_GNSS_PRSNT_N BIT(4)
+
#endif /* _ICE_PTP_HW_H_ */