+ struct udevice *dev;
+ u8 buf[8];
+ int ret;
+
+ /* Configure SMSC USB2513 USB Hub: 7bit address 0x2c */
+ ret = i2c_get_chip_for_busnum(0, 0x2c, 1, &dev);
+ if (ret) {
+ printf("Cannot find USB2513: %d\n", ret);
+ return 0;
+ }
+
+ /*
+ * The first access to the USB Hub fails sometimes, so lets read
+ * a dummy byte to be sure here
+ */
+ dm_i2c_read(dev, 0x00, buf, 1);
+
+ /*
+ * The SMSC hub is not visible on the I2C bus after the first
+ * configuration at power-up. The following code deliberately
+ * does not report upon failure of these I2C write calls.
+ */
+ buf[0] = 0x93;
+ dm_i2c_write(dev, 0x06, buf, 1);
+
+ buf[0] = 0xaa;
+ dm_i2c_write(dev, 0xf8, buf, 1);
+
+ buf[0] = 0x0f;
+ dm_i2c_write(dev, 0xfa, buf, 1);
+
+ buf[0] = 0x01;
+ dm_i2c_write(dev, 0xff, buf, 1);
+