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-rw-r--r--meta-facebook/meta-wedge/recipes-wedge/fbutils/files/reset_usb.sh36
1 files changed, 36 insertions, 0 deletions
diff --git a/meta-facebook/meta-wedge/recipes-wedge/fbutils/files/reset_usb.sh b/meta-facebook/meta-wedge/recipes-wedge/fbutils/files/reset_usb.sh
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--- /dev/null
+++ b/meta-facebook/meta-wedge/recipes-wedge/fbutils/files/reset_usb.sh
@@ -0,0 +1,36 @@
+#!/bin/sh
+#
+# Copyright 2014-present Facebook. All Rights Reserved.
+#
+# This program file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the
+# Free Software Foundation; version 2 of the License.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+# for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program in a file named COPYING; if not, write to the
+# Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor,
+# Boston, MA 02110-1301 USA
+#
+
+. /usr/local/fbpackages/utils/ast-functions
+
+echo -n "Reset USB Switch ... "
+
+# To use GPIOD7 (31), SCU90[1], SCU8C[11], and SCU70[21] must be 0
+devmem_clear_bit $(scu_addr 8C) 11
+devmem_clear_bit $(scu_addr 70) 21
+devmem_clear_bit $(scu_addr 90) 1
+
+gpio_set 31 1
+sleep 1
+gpio_set 31 0
+sleep 1
+gpio_set 31 1
+
+echo "Done"
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