From: Felipe Balbi <balbi@ti.com>
Date: Mon, 6 Feb 2012 09:04:53 +0000 (+0200)
Subject: usb: dwc3: convert TRBs into bitshifts
X-Git-Tag: v3.4-rc1~184^2~22^2~35^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f6bafc6a1c9d58f0c234ac5052b9c09b0747348c;p=pandora-kernel.git

usb: dwc3: convert TRBs into bitshifts

this will get rid of a useless memcpy on
IRQ handling, thus improving driver performance.

Tested with OMAP5430 running g_mass_storage on
SuperSpeed and HighSpeed.

Note that we are removing the little endian access
of the TRB and all accesses will be in System endianness,
if there happens to be a system in BE, bit 12 of GSBUSCFG0
should be set so that HW does byte invariant BE accesses
when fetching TRBs.

Signed-off-by: Felipe Balbi <balbi@ti.com>
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