dm: usb: Drop the legacy USB init sequence

This CONFIG is not used anywhere in U-Boot, so drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Marek Vasut <marex@denx.de>

diff --git a/common/usb.c b/common/usb.c
index 4f3713d92f3532adda085edebcfb016fa7ebe8e8..df4e172ff806779a9c071199e6e016a51df9562d 100644 (file)
--- a/common/usb.c
+++ b/common/usb.c
@@ -905,26 +905,8 @@ int usb_new_device(struct usb_device *dev)
        addr = dev->devnum;
        dev->devnum = 0;
 
-#ifdef CONFIG_LEGACY_USB_INIT_SEQ
-       /* this is the old and known way of initializing devices, it is
-        * different than what Windows and Linux are doing. Windows and Linux
-        * both retrieve 64 bytes while reading the device descriptor
-        * Several USB stick devices report ERR: CTL_TIMEOUT, caused by an
-        * invalid header while reading 8 bytes as device descriptor. */
-       dev->descriptor.bMaxPacketSize0 = 8;        /* Start off at 8 bytes  */
-       dev->maxpacketsize = PACKET_SIZE_8;
-       dev->epmaxpacketin[0] = 8;
-       dev->epmaxpacketout[0] = 8;
-
-       err = usb_get_descriptor(dev, USB_DT_DEVICE, 0, tmpbuf, 8);
-       if (err < 8) {
-               printf("\n      USB device not responding, " \
-                      "giving up (status=%lX)\n", dev->status);
-               return -EIO;
-       }
-       memcpy(&dev->descriptor, tmpbuf, 8);
-#else
-       /* This is a Windows scheme of initialization sequence, with double
+       /*
+        * This is a Windows scheme of initialization sequence, with double
         * reset of the device (Linux uses the same sequence)
         * Some equipment is said to work only with such init sequence; this
         * patch is based on the work by Alan Stern:
@@ -935,7 +917,8 @@ int usb_new_device(struct usb_device *dev)
        struct usb_device *parent = dev->parent;
        unsigned short portstatus;
 
-       /* send 64-byte GET-DEVICE-DESCRIPTOR request.  Since the descriptor is
+       /*
+        * send 64-byte GET-DEVICE-DESCRIPTOR request.  Since the descriptor is
         * only 18 bytes long, this will terminate with a short packet.  But if
         * the maxpacket size is 8 or 16 the device may be waiting to transmit
         * some more, or keeps on retransmitting the 8 byte header. */
@@ -993,7 +976,6 @@ int usb_new_device(struct usb_device *dev)
        } else {
                usb_reset_root_port();
        }
-#endif
 
        dev->epmaxpacketin[0] = dev->descriptor.bMaxPacketSize0;
        dev->epmaxpacketout[0] = dev->descriptor.bMaxPacketSize0;