Host with inoperable ULPI able to bring the system into an
infinite loop. The patch adds error checking during initialization
to avoid this.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We used to distinguish which USB port to fixup by pdev->id. This
is < 0 for devicetree probed devices all the time, so this won't
work anymore once we switch to devicetree. Do the fixup on every
port instead, it doesn't hurt.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Checking the status field of the qTD token in the current code
do not take into acount cases where endpoint stall (halted) bit
is set together with XactErr status bit. As a result clearing
stall on an endpoint won't be done if this status bit was also
set. Check for halted bit and report USB_ST_STALLED status
if the host controller also indicates endpoit stall condition.
From u-boot by Anatolij Gustschin <agust@denx.de>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
the current mmu support is broken
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The EfikaSB has a bug requiring to write to an ULPI register after
powerup. It doesn't seem that this this bug is present on any other
hardware, so add a workaround directly into the driver.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The EHCI core often is part of a otg core. Allow it to be registered
separately from another driver.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The FSF address has changed in the past. Instead of updating it
each time the address changes, just drop it completely treewide.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Storing the size instead of the resource end in struct resource was
a mistake. 'size' ranges from 0 to UINT[32|64]_MAX + 1 which obviously
leads to problems. 'end' on the other hand will never exceed
UINT[32|64]_MAX. Also this way we can express a iomem region covering
the whole address space.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We do not need to invalidate the cache in the poll loop anymore
since the corresponding bit is now in a dma coherent area. Instead,
flush cache before hardware operation and invalidate afterwards. Put
the corresponding code inline since it's shorter.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
There's no point in syncing them manually. Instead, use
dma_alloc_coherent and skip the manual flushing/invalidating.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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>
Alexander Shiyan
Sascha Hauer
Jean-Christophe PLAGNIOL-VILLARD
Jan Luebbe
Jason Kridner
Alexander Aring
Hubert Feurstein
Antony Pavlov
Rosen Kolev
Sanjeev Premi