This is based on the following U-Boot commit:
commit 5f4b4f2fed3ab8590c8c06b78642f8c1467acacf
Author: Vincent Palatin <vpalatin@chromium.org>
Date: Mon Dec 5 14:52:22 2011 -0800
ehci: speed up initialization
According to EHCI specification v1.0, the controller should stabilize
the power on a port at most 20 ms after the port power bit transition.
So, we put this setting in the virtual descriptor corresponding field,
(bPwrOn2PwrGood = 10 => 10 x 2ms = 20ms), this saves about 500ms at each
controller initialization/enumeration.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
for chache handling the ehci driver iterates over the hardware lists
of QHs/TDs. As we have a fixed number of maximum entries in this lists
we can allocate them as arrays and and clean/invalidate the arrays
instead which is much simpler. While at it, move the allocation to
ehci_probe so that we do not lose memory each time ehci_init is called.
Also, use memalign to allocate the QHs/TDs.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
cherry-picked from U-Boot.
commit 69716c1900274a89bd5cbd1b0bb276ceaaa04f61
Author: Jason Kridner <jkridner@beagleboard.org>
Date: Wed Apr 20 08:54:16 2011 -0500
USB: Remove __attribute__ ((packed)) for struct ehci_hccr and ehci_hcor
Remove __attribute__ ((packed)) to prevent byte access to soc
registers in some gcc versions.
Having patches to enable ehci for the BeagleBoard lying around for
several months, this one was the show-stopper.
Switched to align(4), rather than remove the attribute, per suggestion
from Alexander.
Credits have to go to Laine Walker-Avina <lwalkera@ieee.org> for
finding the problem.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Change dependencies in Kconfig for twl devices.
Signed-off-by: Alexander Aring <a.aring@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
To allow for some generic io accessors introduce io.h and use
this instead of asm/io.h throughout the tree.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
pass the hccr and hcor register base via resource
instroduce add_generic_usb_echi_device with hccr = base + 0x100 and
hcor = base + 0x140
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
This patch fixes the compiler error:
CC drivers/usb/host/ehci-omap.o
drivers/usb/host/ehci-omap.c: In function 'ehci_omap_init':
drivers/usb/host/ehci-omap.c:204: error: 'CPU_ES2P1' undeclar
ed (first use in this function)
drivers/usb/host/ehci-omap.c:204: error: (Each undeclared ide
ntifier is reported only once
drivers/usb/host/ehci-omap.c:204: error: for each function it
appears in.)
make[3]: *** [drivers/usb/host/ehci-omap.o] Error 1
Problem reported by: Cory Walker (cwalker32@gmail.com)
Signed-off-by: Sanjeev Premi <premi@ti.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
with cm-regbits-34xx.h and codebase from linux kernel
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
move to linux usb driver organisation
as following
drivers/usb/core
drivers/usb/gadget
drivers/usb/host
drivers/usb/otg
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
