imx: lpi2c: fix clock issue when NACK detected

[u-boot] / include / usb_defs.h

diff --git a/include/usb_defs.h b/include/usb_defs.h
index 6b4385a2d8347f0334aa7bcf028137e3d02d6840..6dd2c997f9b38557a6011fa1193e00c00572b1f1 100644 (file)
--- a/include/usb_defs.h
+++ b/include/usb_defs.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2001
  * Denis Peter, MPL AG Switzerland
  *
- * SPDX-License-Identifier:    GPL-2.0+
- *
  * Note: Part of this code has been derived from linux
  */
 #ifndef _USB_DEFS_H_
@@ -293,6 +292,7 @@
 #define HUB_CHAR_LPSM               0x0003
 #define HUB_CHAR_COMPOUND           0x0004
 #define HUB_CHAR_OCPM               0x0018
+#define HUB_CHAR_TTTT               0x0060 /* TT Think Time mask */
 
 /*
  * Hub Status & Hub Change bit masks
@@ -306,6 +306,20 @@
 /* Mask for wIndex in get/set port feature */
 #define USB_HUB_PORT_MASK      0xf
 
+/* Hub class request codes */
+#define USB_REQ_SET_HUB_DEPTH  0x0c
+
+/*
+ * As of USB 2.0, full/low speed devices are segregated into trees.
+ * One type grows from USB 1.1 host controllers (OHCI, UHCI etc).
+ * The other type grows from high speed hubs when they connect to
+ * full/low speed devices using "Transaction Translators" (TTs).
+ */
+struct usb_tt {
+       bool            multi;          /* true means one TT per port */
+       unsigned        think_time;     /* think time in ns */
+};
+
 /*
  * CBI style
  */