From 3d59f1f61c91c7c3843fc8e606e4a6b1ab956fda Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Wed, 21 Aug 2013 11:07:42 -0600
Subject: [PATCH] Move all SAMA5 EHCI interrupt handling to the worker thread

---
 configs/sama5d3x-ek/README.txt | 28 +++++++++++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

diff --git a/configs/sama5d3x-ek/README.txt b/configs/sama5d3x-ek/README.txt
index e34da30368..d7eadc4cd6 100644
--- a/configs/sama5d3x-ek/README.txt
+++ b/configs/sama5d3x-ek/README.txt
@@ -1166,7 +1166,7 @@ Configurations
           volume when it is removed.  But those callbacks are not used in
           this configuration.
 
-    10) Support the USB full-speed OHCI host driver can be enabled by change
+    10) Support the USB full-speed OHCI host driver can be enabled by changing
         the NuttX configuration file as follows:
 
         System Type -> ATSAMA5 Peripheral Support
@@ -1193,6 +1193,28 @@ Configurations
        multiple of the 48MHz needed for OHCI.  The delay loop calibration
        values that are used will be off slightly because of this.
 
+    10) Support the USB high-speed EHCI host driver can be enabled by changing
+        the NuttX configuration file as follows:
+
+        System Type -> ATSAMA5 Peripheral Support
+          CONFIG_SAMA5_UHPHS=y                 : USB Host High Speed
+
+        System Type -> USB High Speed Host driver options
+          CONFIG_SAMA5_EHCI=y                  : High-speed EHCI support
+                                               : Defaults for values probably OK
+        Device Drivers
+          CONFIG_USBHOST=y                     : Enable USB host support
+
+        Device Drivers -> USB Host Driver Support
+          CONFIG_USBHOST_ISOC_DISABLE=y        : Isochronous endpoints not used
+          CONFIG_USBHOST_MSC=y                 : Enable the mass storage class driver
+
+        Library Routines
+          CONFIG_SCHED_WORKQUEUE               : Worker thread support is required
+
+       Application Configuration -> NSH Library
+         CONFIG_NSH_ARCHINIT=y                 : NSH board-initialization
+
     STATUS:
       2013-7-19:  This configuration (as do the others) run at 396MHz.
         The SAMA5D3 can run at 536MHz.  I still need to figure out the
@@ -1255,6 +1277,10 @@ Configurations
         d) OHCI will support 3 downstream points, but I currently have only
            one enabled.
 
+      2013-8-20:  Added description to add EHCI to the configuration.  At
+        present, however, EHCI is still a work in progress and not ready for
+        prime time.
+
   ostest:
     This configuration directory, performs a simple OS test using
     examples/ostest.