--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Driver for Microchip USB251xB USB 2.0 Hi-Speed Hub Controller
+ * Configuration via SMBus.
+ *
+ * Copyright (c) 2017 SKIDATA AG
+ *
+ * This work is based on the USB3503 driver by Dongjin Kim and
+ * a not-accepted patch by Fabien Lahoudere, see:
+ * https://patchwork.kernel.org/patch/9257715/
+ */
+
+#include <common.h>
+#include <asm/gpio.h>
+#include <dm.h>
+#include <dm/device_compat.h>
+#include <errno.h>
+#include <i2c.h>
+#include <linux/delay.h>
+#include <linux/utf.h>
+#include <power/regulator.h>
+
+/* Internal Register Set Addresses & Default Values acc. to DS00001692C */
+#define USB251XB_ADDR_VENDOR_ID_LSB 0x00
+#define USB251XB_ADDR_VENDOR_ID_MSB 0x01
+#define USB251XB_DEF_VENDOR_ID 0x0424
+
+#define USB251XB_ADDR_PRODUCT_ID_LSB 0x02
+#define USB251XB_ADDR_PRODUCT_ID_MSB 0x03
+
+#define USB251XB_ADDR_DEVICE_ID_LSB 0x04
+#define USB251XB_ADDR_DEVICE_ID_MSB 0x05
+#define USB251XB_DEF_DEVICE_ID 0x0BB3
+
+#define USB251XB_ADDR_CONFIG_DATA_1 0x06
+#define USB251XB_DEF_CONFIG_DATA_1 0x9B
+#define USB251XB_ADDR_CONFIG_DATA_2 0x07
+#define USB251XB_DEF_CONFIG_DATA_2 0x20
+#define USB251XB_ADDR_CONFIG_DATA_3 0x08
+#define USB251XB_DEF_CONFIG_DATA_3 0x02
+
+#define USB251XB_ADDR_NON_REMOVABLE_DEVICES 0x09
+#define USB251XB_DEF_NON_REMOVABLE_DEVICES 0x00
+
+#define USB251XB_ADDR_PORT_DISABLE_SELF 0x0A
+#define USB251XB_DEF_PORT_DISABLE_SELF 0x00
+#define USB251XB_ADDR_PORT_DISABLE_BUS 0x0B
+#define USB251XB_DEF_PORT_DISABLE_BUS 0x00
+
+#define USB251XB_ADDR_MAX_POWER_SELF 0x0C
+#define USB251XB_DEF_MAX_POWER_SELF 0x01
+#define USB251XB_ADDR_MAX_POWER_BUS 0x0D
+#define USB251XB_DEF_MAX_POWER_BUS 0x32
+
+#define USB251XB_ADDR_MAX_CURRENT_SELF 0x0E
+#define USB251XB_DEF_MAX_CURRENT_SELF 0x01
+#define USB251XB_ADDR_MAX_CURRENT_BUS 0x0F
+#define USB251XB_DEF_MAX_CURRENT_BUS 0x32
+
+#define USB251XB_ADDR_POWER_ON_TIME 0x10
+#define USB251XB_DEF_POWER_ON_TIME 0x32
+
+#define USB251XB_ADDR_LANGUAGE_ID_HIGH 0x11
+#define USB251XB_ADDR_LANGUAGE_ID_LOW 0x12
+#define USB251XB_DEF_LANGUAGE_ID 0x0000
+
+#define USB251XB_STRING_BUFSIZE 62
+#define USB251XB_ADDR_MANUFACTURER_STRING_LEN 0x13
+#define USB251XB_ADDR_MANUFACTURER_STRING 0x16
+#define USB251XB_DEF_MANUFACTURER_STRING "Microchip"
+
+#define USB251XB_ADDR_PRODUCT_STRING_LEN 0x14
+#define USB251XB_ADDR_PRODUCT_STRING 0x54
+
+#define USB251XB_ADDR_SERIAL_STRING_LEN 0x15
+#define USB251XB_ADDR_SERIAL_STRING 0x92
+#define USB251XB_DEF_SERIAL_STRING ""
+
+#define USB251XB_ADDR_BATTERY_CHARGING_ENABLE 0xD0
+#define USB251XB_DEF_BATTERY_CHARGING_ENABLE 0x00
+
+#define USB251XB_ADDR_BOOST_UP 0xF6
+#define USB251XB_DEF_BOOST_UP 0x00
+#define USB251XB_ADDR_BOOST_57 0xF7
+#define USB251XB_DEF_BOOST_57 0x00
+#define USB251XB_ADDR_BOOST_14 0xF8
+#define USB251XB_DEF_BOOST_14 0x00
+
+#define USB251XB_ADDR_PORT_SWAP 0xFA
+#define USB251XB_DEF_PORT_SWAP 0x00
+
+#define USB251XB_ADDR_PORT_MAP_12 0xFB
+#define USB251XB_DEF_PORT_MAP_12 0x00
+#define USB251XB_ADDR_PORT_MAP_34 0xFC
+#define USB251XB_DEF_PORT_MAP_34 0x00 /* USB251{3B/i,4B/i,7/i} only */
+#define USB251XB_ADDR_PORT_MAP_56 0xFD
+#define USB251XB_DEF_PORT_MAP_56 0x00 /* USB2517/i only */
+#define USB251XB_ADDR_PORT_MAP_7 0xFE
+#define USB251XB_DEF_PORT_MAP_7 0x00 /* USB2517/i only */
+
+#define USB251XB_ADDR_STATUS_COMMAND 0xFF
+#define USB251XB_STATUS_COMMAND_SMBUS_DOWN 0x04
+#define USB251XB_STATUS_COMMAND_RESET 0x02
+#define USB251XB_STATUS_COMMAND_ATTACH 0x01
+
+#define USB251XB_I2C_REG_SZ 0x100
+#define USB251XB_I2C_WRITE_SZ 0x10
+
+#define DRIVER_NAME "usb251xb"
+#define DRIVER_DESC "Microchip USB 2.0 Hi-Speed Hub Controller"
+
+struct usb251xb {
+ struct device *dev;
+ struct i2c_client *i2c;
+ struct udevice *vdd;
+ u8 skip_config;
+ struct gpio_desc gpio_reset;
+ u32 vendor_id;
+ u32 product_id;
+ u32 device_id;
+ u8 conf_data1;
+ u8 conf_data2;
+ u8 conf_data3;
+ u8 non_rem_dev;
+ u8 port_disable_sp;
+ u8 port_disable_bp;
+ u8 max_power_sp;
+ u8 max_power_bp;
+ u8 max_current_sp;
+ u8 max_current_bp;
+ u8 power_on_time;
+ u32 lang_id;
+ u8 manufacturer_len;
+ u8 product_len;
+ u8 serial_len;
+ s16 manufacturer[USB251XB_STRING_BUFSIZE];
+ s16 product[USB251XB_STRING_BUFSIZE];
+ s16 serial[USB251XB_STRING_BUFSIZE];
+ u8 bat_charge_en;
+ u32 boost_up;
+ u8 boost_57;
+ u8 boost_14;
+ u8 port_swap;
+ u8 port_map12;
+ u8 port_map34;
+ u8 port_map56;
+ u8 port_map7;
+ u8 status;
+};
+
+struct usb251xb_data {
+ u16 product_id;
+ u8 port_cnt;
+ bool led_support;
+ bool bat_support;
+ char product_str[USB251XB_STRING_BUFSIZE / 2]; /* ASCII string */
+};
+
+static const struct usb251xb_data usb2422_data = {
+ .product_id = 0x2422,
+ .port_cnt = 2,
+ .led_support = false,
+ .bat_support = true,
+ .product_str = "USB2422",
+};
+
+static const struct usb251xb_data usb2512b_data = {
+ .product_id = 0x2512,
+ .port_cnt = 2,
+ .led_support = false,
+ .bat_support = true,
+ .product_str = "USB2512B",
+};
+
+static const struct usb251xb_data usb2512bi_data = {
+ .product_id = 0x2512,
+ .port_cnt = 2,
+ .led_support = false,
+ .bat_support = true,
+ .product_str = "USB2512Bi",
+};
+
+static const struct usb251xb_data usb2513b_data = {
+ .product_id = 0x2513,
+ .port_cnt = 3,
+ .led_support = false,
+ .bat_support = true,
+ .product_str = "USB2513B",
+};
+
+static const struct usb251xb_data usb2513bi_data = {
+ .product_id = 0x2513,
+ .port_cnt = 3,
+ .led_support = false,
+ .bat_support = true,
+ .product_str = "USB2513Bi",
+};
+
+static const struct usb251xb_data usb2514b_data = {
+ .product_id = 0x2514,
+ .port_cnt = 4,
+ .led_support = false,
+ .bat_support = true,
+ .product_str = "USB2514B",
+};
+
+static const struct usb251xb_data usb2514bi_data = {
+ .product_id = 0x2514,
+ .port_cnt = 4,
+ .led_support = false,
+ .bat_support = true,
+ .product_str = "USB2514Bi",
+};
+
+static const struct usb251xb_data usb2517_data = {
+ .product_id = 0x2517,
+ .port_cnt = 7,
+ .led_support = true,
+ .bat_support = false,
+ .product_str = "USB2517",
+};
+
+static const struct usb251xb_data usb2517i_data = {
+ .product_id = 0x2517,
+ .port_cnt = 7,
+ .led_support = true,
+ .bat_support = false,
+ .product_str = "USB2517i",
+};
+
+static void usb251xb_reset(struct usb251xb *hub)
+{
+ dm_gpio_set_value(&hub->gpio_reset, 1);
+ udelay(10); /* >=1us RESET_N asserted */
+ dm_gpio_set_value(&hub->gpio_reset, 0);
+
+ /* wait for hub recovery/stabilization */
+ udelay(750); /* >=500us after RESET_N deasserted */
+}
+
+static int usb251xb_connect(struct udevice *dev)
+{
+ struct usb251xb *hub = dev_get_priv(dev);
+ char i2c_wb[USB251XB_I2C_REG_SZ];
+ int err, i;
+
+ memset(i2c_wb, 0, USB251XB_I2C_REG_SZ);
+
+ if (hub->skip_config) {
+ dev_info(dev, "Skip hub configuration, only attach.\n");
+ i2c_wb[0] = 0x01;
+ i2c_wb[1] = USB251XB_STATUS_COMMAND_ATTACH;
+
+ usb251xb_reset(hub);
+
+ err = dm_i2c_write(dev, USB251XB_ADDR_STATUS_COMMAND, i2c_wb, 2);
+ if (err) {
+ dev_err(dev, "attaching hub failed: %d\n", err);
+ return err;
+ }
+ return 0;
+ }
+
+ i2c_wb[USB251XB_ADDR_VENDOR_ID_MSB] = (hub->vendor_id >> 8) & 0xFF;
+ i2c_wb[USB251XB_ADDR_VENDOR_ID_LSB] = hub->vendor_id & 0xFF;
+ i2c_wb[USB251XB_ADDR_PRODUCT_ID_MSB] = (hub->product_id >> 8) & 0xFF;
+ i2c_wb[USB251XB_ADDR_PRODUCT_ID_LSB] = hub->product_id & 0xFF;
+ i2c_wb[USB251XB_ADDR_DEVICE_ID_MSB] = (hub->device_id >> 8) & 0xFF;
+ i2c_wb[USB251XB_ADDR_DEVICE_ID_LSB] = hub->device_id & 0xFF;
+ i2c_wb[USB251XB_ADDR_CONFIG_DATA_1] = hub->conf_data1;
+ i2c_wb[USB251XB_ADDR_CONFIG_DATA_2] = hub->conf_data2;
+ i2c_wb[USB251XB_ADDR_CONFIG_DATA_3] = hub->conf_data3;
+ i2c_wb[USB251XB_ADDR_NON_REMOVABLE_DEVICES] = hub->non_rem_dev;
+ i2c_wb[USB251XB_ADDR_PORT_DISABLE_SELF] = hub->port_disable_sp;
+ i2c_wb[USB251XB_ADDR_PORT_DISABLE_BUS] = hub->port_disable_bp;
+ i2c_wb[USB251XB_ADDR_MAX_POWER_SELF] = hub->max_power_sp;
+ i2c_wb[USB251XB_ADDR_MAX_POWER_BUS] = hub->max_power_bp;
+ i2c_wb[USB251XB_ADDR_MAX_CURRENT_SELF] = hub->max_current_sp;
+ i2c_wb[USB251XB_ADDR_MAX_CURRENT_BUS] = hub->max_current_bp;
+ i2c_wb[USB251XB_ADDR_POWER_ON_TIME] = hub->power_on_time;
+ i2c_wb[USB251XB_ADDR_LANGUAGE_ID_HIGH] = (hub->lang_id >> 8) & 0xFF;
+ i2c_wb[USB251XB_ADDR_LANGUAGE_ID_LOW] = hub->lang_id & 0xFF;
+ i2c_wb[USB251XB_ADDR_MANUFACTURER_STRING_LEN] = hub->manufacturer_len;
+ i2c_wb[USB251XB_ADDR_PRODUCT_STRING_LEN] = hub->product_len;
+ i2c_wb[USB251XB_ADDR_SERIAL_STRING_LEN] = hub->serial_len;
+ memcpy(&i2c_wb[USB251XB_ADDR_MANUFACTURER_STRING], hub->manufacturer,
+ USB251XB_STRING_BUFSIZE);
+ memcpy(&i2c_wb[USB251XB_ADDR_SERIAL_STRING], hub->serial,
+ USB251XB_STRING_BUFSIZE);
+ memcpy(&i2c_wb[USB251XB_ADDR_PRODUCT_STRING], hub->product,
+ USB251XB_STRING_BUFSIZE);
+ i2c_wb[USB251XB_ADDR_BATTERY_CHARGING_ENABLE] = hub->bat_charge_en;
+ i2c_wb[USB251XB_ADDR_BOOST_UP] = hub->boost_up;
+ i2c_wb[USB251XB_ADDR_BOOST_57] = hub->boost_57;
+ i2c_wb[USB251XB_ADDR_BOOST_14] = hub->boost_14;
+ i2c_wb[USB251XB_ADDR_PORT_SWAP] = hub->port_swap;
+ i2c_wb[USB251XB_ADDR_PORT_MAP_12] = hub->port_map12;
+ i2c_wb[USB251XB_ADDR_PORT_MAP_34] = hub->port_map34;
+ i2c_wb[USB251XB_ADDR_PORT_MAP_56] = hub->port_map56;
+ i2c_wb[USB251XB_ADDR_PORT_MAP_7] = hub->port_map7;
+ i2c_wb[USB251XB_ADDR_STATUS_COMMAND] = USB251XB_STATUS_COMMAND_ATTACH;
+
+ usb251xb_reset(hub);
+
+ /* write registers */
+ for (i = 0; i < (USB251XB_I2C_REG_SZ / USB251XB_I2C_WRITE_SZ); i++) {
+ int offset = i * USB251XB_I2C_WRITE_SZ;
+ char wbuf[USB251XB_I2C_WRITE_SZ + 1];
+
+ /* The first data byte transferred tells the hub how many data
+ * bytes will follow (byte count).
+ */
+ wbuf[0] = USB251XB_I2C_WRITE_SZ;
+ memcpy(&wbuf[1], &i2c_wb[offset], USB251XB_I2C_WRITE_SZ);
+
+ dev_dbg(dev, "writing %d byte block %d to 0x%02X\n",
+ USB251XB_I2C_WRITE_SZ, i, offset);
+
+ err = dm_i2c_write(dev, offset, wbuf, USB251XB_I2C_WRITE_SZ + 1);
+ if (err)
+ goto out_err;
+ }
+
+ dev_info(dev, "Hub configuration was successful.\n");
+ return 0;
+
+out_err:
+ dev_err(dev, "configuring block %d failed: %d\n", i, err);
+ return err;
+}
+
+static int usb251xb_probe(struct udevice *dev)
+{
+ struct usb251xb *hub = dev_get_priv(dev);
+ int err;
+
+ if (IS_ENABLED(CONFIG_DM_REGULATOR) && hub->vdd) {
+ err = regulator_set_enable(hub->vdd, true);
+ if (err)
+ return err;
+ }
+
+ err = usb251xb_connect(dev);
+ if (err) {
+ dev_err(dev, "Failed to connect hub (%d)\n", err);
+ return err;
+ }
+
+ dev_info(dev, "Hub probed successfully\n");
+
+ return 0;
+}
+
+static void usb251xb_get_ports_field(struct udevice *dev,
+ const char *prop_name, u8 port_cnt,
+ bool ds_only, u8 *fld)
+{
+ u32 i, port;
+ int ret;
+
+ for (i = 0; i < port_cnt; i++) {
+ ret = dev_read_u32_index(dev, prop_name, i, &port);
+ if (ret)
+ continue;
+ if (port >= ds_only ? 1 : 0 && port <= port_cnt)
+ *fld |= BIT(port);
+ else
+ dev_warn(dev, "port %u doesn't exist\n", port);
+ }
+}
+
+static int usb251xb_of_to_plat(struct udevice *dev)
+{
+ struct usb251xb_data *data =
+ (struct usb251xb_data *)dev_get_driver_data(dev);
+ struct usb251xb *hub = dev_get_priv(dev);
+ char str[USB251XB_STRING_BUFSIZE / 2];
+ const char *cproperty_char;
+ u32 property_u32 = 0;
+ int len, err;
+
+ if (dev_read_bool(dev, "skip-config"))
+ hub->skip_config = 1;
+ else
+ hub->skip_config = 0;
+
+ err = gpio_request_by_name(dev, "reset-gpios", 0, &hub->gpio_reset,
+ GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
+ if (err && err != -ENOENT) {
+ dev_err(dev, "unable to request GPIO reset pin (%d)\n", err);
+ return err;
+ }
+
+ if (IS_ENABLED(CONFIG_DM_REGULATOR)) {
+ err = device_get_supply_regulator(dev, "vdd-supply",
+ &hub->vdd);
+ if (err && err != -ENOENT) {
+ dev_err(dev, "Warning: cannot get power supply\n");
+ return err;
+ }
+ }
+
+ if (dev_read_u32(dev, "vendor-id", &hub->vendor_id))
+ hub->vendor_id = USB251XB_DEF_VENDOR_ID;
+
+ if (dev_read_u32(dev, "product-id", &hub->product_id))
+ hub->product_id = data->product_id;
+
+ if (dev_read_u32(dev, "device-id", &hub->device_id))
+ hub->device_id = USB251XB_DEF_DEVICE_ID;
+
+ hub->conf_data1 = USB251XB_DEF_CONFIG_DATA_1;
+ if (dev_read_bool(dev, "self-powered")) {
+ hub->conf_data1 |= BIT(7);
+
+ /* Configure Over-Current sens when self-powered */
+ hub->conf_data1 &= ~BIT(2);
+ if (dev_read_bool(dev, "ganged-sensing"))
+ hub->conf_data1 &= ~BIT(1);
+ else if (dev_read_bool(dev, "individual-sensing"))
+ hub->conf_data1 |= BIT(1);
+ } else if (dev_read_bool(dev, "bus-powered")) {
+ hub->conf_data1 &= ~BIT(7);
+
+ /* Disable Over-Current sense when bus-powered */
+ hub->conf_data1 |= BIT(2);
+ }
+
+ if (dev_read_bool(dev, "disable-hi-speed"))
+ hub->conf_data1 |= BIT(5);
+
+ if (dev_read_bool(dev, "multi-tt"))
+ hub->conf_data1 |= BIT(4);
+ else if (dev_read_bool(dev, "single-tt"))
+ hub->conf_data1 &= ~BIT(4);
+
+ if (dev_read_bool(dev, "disable-eop"))
+ hub->conf_data1 |= BIT(3);
+
+ if (dev_read_bool(dev, "individual-port-switching"))
+ hub->conf_data1 |= BIT(0);
+ else if (dev_read_bool(dev, "ganged-port-switching"))
+ hub->conf_data1 &= ~BIT(0);
+
+ hub->conf_data2 = USB251XB_DEF_CONFIG_DATA_2;
+ if (dev_read_bool(dev, "dynamic-power-switching"))
+ hub->conf_data2 |= BIT(7);
+
+ if (!dev_read_u32(dev, "oc-delay-us", &property_u32)) {
+ if (property_u32 == 100) {
+ /* 100 us*/
+ hub->conf_data2 &= ~BIT(5);
+ hub->conf_data2 &= ~BIT(4);
+ } else if (property_u32 == 4000) {
+ /* 4 ms */
+ hub->conf_data2 &= ~BIT(5);
+ hub->conf_data2 |= BIT(4);
+ } else if (property_u32 == 16000) {
+ /* 16 ms */
+ hub->conf_data2 |= BIT(5);
+ hub->conf_data2 |= BIT(4);
+ } else {
+ /* 8 ms (DEFAULT) */
+ hub->conf_data2 |= BIT(5);
+ hub->conf_data2 &= ~BIT(4);
+ }
+ }
+
+ if (dev_read_bool(dev, "compound-device"))
+ hub->conf_data2 |= BIT(3);
+
+ hub->conf_data3 = USB251XB_DEF_CONFIG_DATA_3;
+ if (dev_read_bool(dev, "port-mapping-mode"))
+ hub->conf_data3 |= BIT(3);
+
+ if (data->led_support && dev_read_bool(dev, "led-usb-mode"))
+ hub->conf_data3 &= ~BIT(1);
+
+ if (dev_read_bool(dev, "string-support"))
+ hub->conf_data3 |= BIT(0);
+
+ hub->non_rem_dev = USB251XB_DEF_NON_REMOVABLE_DEVICES;
+ usb251xb_get_ports_field(dev, "non-removable-ports", data->port_cnt,
+ true, &hub->non_rem_dev);
+
+ hub->port_disable_sp = USB251XB_DEF_PORT_DISABLE_SELF;
+ usb251xb_get_ports_field(dev, "sp-disabled-ports", data->port_cnt,
+ true, &hub->port_disable_sp);
+
+ hub->port_disable_bp = USB251XB_DEF_PORT_DISABLE_BUS;
+ usb251xb_get_ports_field(dev, "bp-disabled-ports", data->port_cnt,
+ true, &hub->port_disable_bp);
+
+ hub->max_power_sp = USB251XB_DEF_MAX_POWER_SELF;
+ if (!dev_read_u32(dev, "sp-max-total-current-microamp", &property_u32))
+ hub->max_power_sp = min_t(u8, property_u32 / 2000, 50);
+
+ hub->max_power_bp = USB251XB_DEF_MAX_POWER_BUS;
+ if (!dev_read_u32(dev, "bp-max-total-current-microamp", &property_u32))
+ hub->max_power_bp = min_t(u8, property_u32 / 2000, 255);
+
+ hub->max_current_sp = USB251XB_DEF_MAX_CURRENT_SELF;
+ if (!dev_read_u32(dev, "sp-max-removable-current-microamp",
+ &property_u32))
+ hub->max_current_sp = min_t(u8, property_u32 / 2000, 50);
+
+ hub->max_current_bp = USB251XB_DEF_MAX_CURRENT_BUS;
+ if (!dev_read_u32(dev, "bp-max-removable-current-microamp",
+ &property_u32))
+ hub->max_current_bp = min_t(u8, property_u32 / 2000, 255);
+
+ hub->power_on_time = USB251XB_DEF_POWER_ON_TIME;
+ if (!dev_read_u32(dev, "power-on-time-ms", &property_u32))
+ hub->power_on_time = min_t(u8, property_u32 / 2, 255);
+
+ if (dev_read_u32(dev, "language-id", &hub->lang_id))
+ hub->lang_id = USB251XB_DEF_LANGUAGE_ID;
+
+ if (!dev_read_u32(dev, "boost-up", &hub->boost_up))
+ hub->boost_up = USB251XB_DEF_BOOST_UP;
+
+ cproperty_char = dev_read_string(dev, "manufacturer");
+ strlcpy(str, cproperty_char ? : USB251XB_DEF_MANUFACTURER_STRING,
+ sizeof(str));
+ hub->manufacturer_len = strlen(str) & 0xFF;
+ memset(hub->manufacturer, 0, USB251XB_STRING_BUFSIZE);
+ len = min_t(size_t, USB251XB_STRING_BUFSIZE / 2, strlen(str));
+ len = utf8_to_utf16le(str, hub->manufacturer, len);
+
+ cproperty_char = dev_read_string(dev, "product");
+ strlcpy(str, cproperty_char ? : data->product_str, sizeof(str));
+ hub->product_len = strlen(str) & 0xFF;
+ memset(hub->product, 0, USB251XB_STRING_BUFSIZE);
+ len = min_t(size_t, USB251XB_STRING_BUFSIZE / 2, strlen(str));
+ len = utf8_to_utf16le(str, hub->product, len);
+
+ cproperty_char = dev_read_string(dev, "serial");
+ strlcpy(str, cproperty_char ? : USB251XB_DEF_SERIAL_STRING,
+ sizeof(str));
+ hub->serial_len = strlen(str) & 0xFF;
+ memset(hub->serial, 0, USB251XB_STRING_BUFSIZE);
+ len = min_t(size_t, USB251XB_STRING_BUFSIZE / 2, strlen(str));
+ len = utf8_to_utf16le(str, hub->serial, len);
+
+ /*
+ * The datasheet documents the register as 'Port Swap' but in real the
+ * register controls the USB DP/DM signal swapping for each port.
+ */
+ hub->port_swap = USB251XB_DEF_PORT_SWAP;
+ usb251xb_get_ports_field(dev, "swap-dx-lanes", data->port_cnt,
+ false, &hub->port_swap);
+
+ /* The following parameters are currently not exposed to devicetree, but
+ * may be as soon as needed.
+ */
+ hub->bat_charge_en = USB251XB_DEF_BATTERY_CHARGING_ENABLE;
+ hub->boost_57 = USB251XB_DEF_BOOST_57;
+ hub->boost_14 = USB251XB_DEF_BOOST_14;
+ hub->port_map12 = USB251XB_DEF_PORT_MAP_12;
+ hub->port_map34 = USB251XB_DEF_PORT_MAP_34;
+ hub->port_map56 = USB251XB_DEF_PORT_MAP_56;
+ hub->port_map7 = USB251XB_DEF_PORT_MAP_7;
+
+ return 0;
+}
+
+static const struct udevice_id usb251xb_of_match[] = {
+ {
+ .compatible = "microchip,usb2422",
+ .data = (ulong)&usb2422_data,
+ }, {
+ .compatible = "microchip,usb2512b",
+ .data = (ulong)&usb2512b_data,
+ }, {
+ .compatible = "microchip,usb2512bi",
+ .data = (ulong)&usb2512bi_data,
+ }, {
+ .compatible = "microchip,usb2513b",
+ .data = (ulong)&usb2513b_data,
+ }, {
+ .compatible = "microchip,usb2513bi",
+ .data = (ulong)&usb2513bi_data,
+ }, {
+ .compatible = "microchip,usb2514b",
+ .data = (ulong)&usb2514b_data,
+ }, {
+ .compatible = "microchip,usb2514bi",
+ .data = (ulong)&usb2514bi_data,
+ }, {
+ .compatible = "microchip,usb2517",
+ .data = (ulong)&usb2517_data,
+ }, {
+ .compatible = "microchip,usb2517i",
+ .data = (ulong)&usb2517i_data,
+ }
+};
+
+U_BOOT_DRIVER(usb251xb) = {
+ .name = "usb251xb",
+ .id = UCLASS_MISC,
+ .of_match = usb251xb_of_match,
+ .of_to_plat = usb251xb_of_to_plat,
+ .probe = usb251xb_probe,
+ .priv_auto = sizeof(struct usb251xb),
+};
projects / platform / kernel / u-boot.git / commitdiff