From 529febeee680dc22416fca033151a5e8bc620447 Mon Sep 17 00:00:00 2001
From: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Date: Thu, 2 Feb 2012 11:23:14 +0800
Subject: [PATCH] powerpc/usb: fix issue of CPU halt when missing USB PHY clock

when missing USB PHY clock, kernel booting up will halt during USB
initialization. We should check USBGP[PHY_CLK_VALID] bit to avoid
CPU hang in this case.

Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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