<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-toradex.git/drivers/usb/Makefile, branch v3.11</title>
<subtitle>Linux kernel for Apalis and Colibri modules</subtitle>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/'/>
<entry>
<title>usb host: Faraday USB2.0 FUSBH200-HCD driver</title>
<updated>2013-05-17T17:12:52+00:00</updated>
<author>
<name>Yuan-Hsin Chen</name>
<email>yuanlmm@gmail.com</email>
</author>
<published>2013-05-17T10:14:14+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=6c920bfb98d07a883918733075a4bc4287e36946'/>
<id>6c920bfb98d07a883918733075a4bc4287e36946</id>
<content type='text'>
FUSBH200-HCD is an USB2.0 hcd for Faraday FUSBH200.
FUSBH200 is an ehci-like controller with some differences.
First, register layout of FUSBH200 is incompatible with EHCI.
Furthermore, FUSBH200 is lack of siTDs which means iTDs
are used for both HS and FS ISO transfer.

Signed-off-by: Yuan-Hsin Chen &lt;yhchen@faraday-tech.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
FUSBH200-HCD is an USB2.0 hcd for Faraday FUSBH200.
FUSBH200 is an ehci-like controller with some differences.
First, register layout of FUSBH200 is incompatible with EHCI.
Furthermore, FUSBH200 is lack of siTDs which means iTDs
are used for both HS and FS ISO transfer.

Signed-off-by: Yuan-Hsin Chen &lt;yhchen@faraday-tech.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: phy: remove CONFIG_USB_OTG_UTILS</title>
<updated>2013-03-18T09:18:08+00:00</updated>
<author>
<name>Felipe Balbi</name>
<email>balbi@ti.com</email>
</author>
<published>2013-03-07T09:31:18+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=fd891498751f53dda3733d9e9ff8a1f6ea16c5e5'/>
<id>fd891498751f53dda3733d9e9ff8a1f6ea16c5e5</id>
<content type='text'>
there are no more users of CONFIG_USB_OTG_UTILS
left in tree, we can remove it just fine.

[ kishon@ti.com : fixed a linking error due
	to original patch forgetting to change
	drivers/usb/Makefile ]

Signed-off-by: Kishon Vijay Abraham I &lt;kishon@ti.com&gt;
Signed-off-by: Felipe Balbi &lt;balbi@ti.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
there are no more users of CONFIG_USB_OTG_UTILS
left in tree, we can remove it just fine.

[ kishon@ti.com : fixed a linking error due
	to original patch forgetting to change
	drivers/usb/Makefile ]

Signed-off-by: Kishon Vijay Abraham I &lt;kishon@ti.com&gt;
Signed-off-by: Felipe Balbi &lt;balbi@ti.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: phy: move all PHY drivers to drivers/usb/phy/</title>
<updated>2013-03-18T09:18:04+00:00</updated>
<author>
<name>Felipe Balbi</name>
<email>balbi@ti.com</email>
</author>
<published>2013-03-07T09:01:15+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=a0e631235a04f8a815a1ecec93ef418f7d1e6086'/>
<id>a0e631235a04f8a815a1ecec93ef418f7d1e6086</id>
<content type='text'>
that's a much more reasonable location for
those drivers. It helps us saving drivers/usb/otg/
for when we actually start adding generic OTG
code.

Also completely delete drivers/usb/otg/ as there's
nothing left there.

Signed-off-by: Felipe Balbi &lt;balbi@ti.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
that's a much more reasonable location for
those drivers. It helps us saving drivers/usb/otg/
for when we actually start adding generic OTG
code.

Also completely delete drivers/usb/otg/ as there's
nothing left there.

Signed-off-by: Felipe Balbi &lt;balbi@ti.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: Makefile: fix drivers/usb/phy/ Makefile entry</title>
<updated>2013-03-07T04:29:09+00:00</updated>
<author>
<name>Felipe Balbi</name>
<email>balbi@ti.com</email>
</author>
<published>2013-03-06T14:00:45+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=1c2088812f095df77f4b3224b65db79d7111a300'/>
<id>1c2088812f095df77f4b3224b65db79d7111a300</id>
<content type='text'>
drivers/usb/phy/ should be compiled everytime
we have CONFIG_USB_OTG_UTILS enabled.

phy/ should've been part of the build process based
on CONFIG_USB_OTG_UTILS, don't know where I had my head
when I allowed CONFIG_USB_COMMON there.

In fact commit c6156328dec52a55f90688cbfad21c83f8711d84
tried to fix a previous issue but it made things even
worse.

The real solution is to compile phy/ based on
CONFIG_USB_OTG_UTILS which gets selected by all PHY
drivers.

I only triggered the error recently after accepting a
patch which moved a bunch of code from otg/otg.c to
phy/phy.c and running 100 randconfig cycles.

Signed-off-by: Felipe Balbi &lt;balbi@ti.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
drivers/usb/phy/ should be compiled everytime
we have CONFIG_USB_OTG_UTILS enabled.

phy/ should've been part of the build process based
on CONFIG_USB_OTG_UTILS, don't know where I had my head
when I allowed CONFIG_USB_COMMON there.

In fact commit c6156328dec52a55f90688cbfad21c83f8711d84
tried to fix a previous issue but it made things even
worse.

The real solution is to compile phy/ based on
CONFIG_USB_OTG_UTILS which gets selected by all PHY
drivers.

I only triggered the error recently after accepting a
patch which moved a bunch of code from otg/otg.c to
phy/phy.c and running 100 randconfig cycles.

Signed-off-by: Felipe Balbi &lt;balbi@ti.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: phy: Fix Kconfig dependency for Phy drivers</title>
<updated>2012-06-26T23:14:33+00:00</updated>
<author>
<name>Alexandre Pereira da Silva</name>
<email>aletes.xgr@gmail.com</email>
</author>
<published>2012-06-26T14:56:48+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=c6156328dec52a55f90688cbfad21c83f8711d84'/>
<id>c6156328dec52a55f90688cbfad21c83f8711d84</id>
<content type='text'>
USB phy layer driver are only built if usb host is selected, but they
are used too by USB_GADGET drivers

Signed-off-by: Alexandre Pereira da Silva &lt;aletes.xgr@gmail.com&gt;
Acked-by: Roland Stigge &lt;stigge@antcom.de&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
USB phy layer driver are only built if usb host is selected, but they
are used too by USB_GADGET drivers

Signed-off-by: Alexandre Pereira da Silva &lt;aletes.xgr@gmail.com&gt;
Acked-by: Roland Stigge &lt;stigge@antcom.de&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: move ci13xxx and related code to drivers/usb/chipidea</title>
<updated>2012-05-11T23:45:30+00:00</updated>
<author>
<name>Alexander Shishkin</name>
<email>alexander.shishkin@linux.intel.com</email>
</author>
<published>2012-05-11T14:25:45+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=bc25a80d12ea971ddd652717150058989b1ad474'/>
<id>bc25a80d12ea971ddd652717150058989b1ad474</id>
<content type='text'>
Since chipidea is a dual role controller, it makes sense to move it
to its own directory, where we can also have host, otg and platform
code related to this controller. It also makes sense to break out
the driver into several compilation units like udc, host, debugging
code, etc.

Firstly, let's move the udc and platform code to drivers/usb/chipidea.

Signed-off-by: Alexander Shishkin &lt;alexander.shishkin@linux.intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Since chipidea is a dual role controller, it makes sense to move it
to its own directory, where we can also have host, otg and platform
code related to this controller. It also makes sense to break out
the driver into several compilation units like udc, host, debugging
code, etc.

Firstly, let's move the udc and platform code to drivers/usb/chipidea.

Signed-off-by: Alexander Shishkin &lt;alexander.shishkin@linux.intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>USB: Add driver for NXP ISP1301 USB transceiver</title>
<updated>2012-05-01T17:33:02+00:00</updated>
<author>
<name>Roland Stigge</name>
<email>stigge@antcom.de</email>
</author>
<published>2012-04-29T14:47:04+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=8b7c3b68104d687a16dbcc803a18c72148fdfdac'/>
<id>8b7c3b68104d687a16dbcc803a18c72148fdfdac</id>
<content type='text'>
This new driver registers the NXP ISP1301 chip via the I2C subsystem.  The chip
is the USB transceiver shared by ohci-nxp, lpc32xx_udc (gadget) and
isp1301_omap.

ISP1301 is a very low-level driver that primarily separates out the I2C client
registration of the ISP1301 chip (including instantiation via DT), used by
other drivers, and declares the chip's registers. It's only a helper driver for
some OHCI and USB device drivers.  The driver can be considered as a register
set extension of ohci-nxp, lpc32xx-udc and isp1301_omap, which in turn know
best what to do with the low level functionality (individual ISP1301 registers
and timing, see the different initialization strategies in those drivers).
Those drivers previously internally duplicated ISP1301 register definitions
which is solved by this new isp1301 driver. The ISP1301 registers exposed via
isp1301.h can be accessed by other drivers using it with standard i2c_smbus_*()
accesses.

Following patches let the respective USB host and gadget drivers use this
driver, instead of duplicating ISP1301 handling.

Signed-off-by: Roland Stigge &lt;stigge@antcom.de&gt;
Acked-by: Arnd Bergmann &lt;arnd@arndb.de&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This new driver registers the NXP ISP1301 chip via the I2C subsystem.  The chip
is the USB transceiver shared by ohci-nxp, lpc32xx_udc (gadget) and
isp1301_omap.

ISP1301 is a very low-level driver that primarily separates out the I2C client
registration of the ISP1301 chip (including instantiation via DT), used by
other drivers, and declares the chip's registers. It's only a helper driver for
some OHCI and USB device drivers.  The driver can be considered as a register
set extension of ohci-nxp, lpc32xx-udc and isp1301_omap, which in turn know
best what to do with the low level functionality (individual ISP1301 registers
and timing, see the different initialization strategies in those drivers).
Those drivers previously internally duplicated ISP1301 register definitions
which is solved by this new isp1301 driver. The ISP1301 registers exposed via
isp1301.h can be accessed by other drivers using it with standard i2c_smbus_*()
accesses.

Following patches let the respective USB host and gadget drivers use this
driver, instead of duplicating ISP1301 handling.

Signed-off-by: Roland Stigge &lt;stigge@antcom.de&gt;
Acked-by: Arnd Bergmann &lt;arnd@arndb.de&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>USB: OTG should be linked before Host</title>
<updated>2011-11-27T03:58:47+00:00</updated>
<author>
<name>Neil Zhang</name>
<email>zhangwm@marvell.com</email>
</author>
<published>2011-11-23T10:38:48+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=ceb2560348d52c5fa21515e6c1c7d0245c7dd015'/>
<id>ceb2560348d52c5fa21515e6c1c7d0245c7dd015</id>
<content type='text'>
For OTG controller, the host driver will call function
otg_get_transceiver to get the otg transceiver, so we need to init the
OTG driver before HOST.

Signed-off-by: Neil Zhang &lt;zhangwm@marvell.com&gt;
Acked-by: Felipe Balbi &lt;balbi@ti.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
For OTG controller, the host driver will call function
otg_get_transceiver to get the otg transceiver, so we need to init the
OTG driver before HOST.

Signed-off-by: Neil Zhang &lt;zhangwm@marvell.com&gt;
Acked-by: Felipe Balbi &lt;balbi@ti.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: Provide usb_speed_string() function</title>
<updated>2011-09-18T08:29:04+00:00</updated>
<author>
<name>Michal Nazarewicz</name>
<email>mina86@mina86.com</email>
</author>
<published>2011-08-30T15:11:19+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=e538dfdae85244fd2c4231725d82cc1f1bc4942c'/>
<id>e538dfdae85244fd2c4231725d82cc1f1bc4942c</id>
<content type='text'>
In a few places in the kernel, the code prints
a human-readable USB device speed (eg. "high speed").
This involves a switch statement sometimes wrapped
around in ({ ... }) block leading to code repetition.

To mitigate this issue, this commit introduces
usb_speed_string() function, which returns
a human-readable name of provided speed.

It also changes a few places switch was used to use
this new function.  This changes a bit the way the
speed is printed in few instances at the same time
standardising it.

Signed-off-by: Michal Nazarewicz &lt;mina86@mina86.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
In a few places in the kernel, the code prints
a human-readable USB device speed (eg. "high speed").
This involves a switch statement sometimes wrapped
around in ({ ... }) block leading to code repetition.

To mitigate this issue, this commit introduces
usb_speed_string() function, which returns
a human-readable name of provided speed.

It also changes a few places switch was used to use
this new function.  This changes a bit the way the
speed is printed in few instances at the same time
standardising it.

Signed-off-by: Michal Nazarewicz &lt;mina86@mina86.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: Introduce DesignWare USB3 DRD Driver</title>
<updated>2011-08-22T23:03:11+00:00</updated>
<author>
<name>Felipe Balbi</name>
<email>balbi@ti.com</email>
</author>
<published>2011-08-19T15:10:58+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=72246da40f3719af3bfd104a2365b32537c27d83'/>
<id>72246da40f3719af3bfd104a2365b32537c27d83</id>
<content type='text'>
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.

Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.

The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.

More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.

While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.

[1] http://marc.info/?l=linux-usb&amp;m=131341992020339&amp;w=2

Signed-off-by: Felipe Balbi &lt;balbi@ti.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The DesignWare USB3 is a highly
configurable IP Core which can be
instantiated as Dual-Role Device (DRD),
Peripheral Only and Host Only (XHCI)
configurations.

Several other parameters can be configured
like amount of FIFO space, amount of TX and
RX endpoints, amount of Host Interrupters,
etc.

The current driver has been validated with
a virtual model of version 1.73a of that core
and with an FPGA burned with version 1.83a
of the DRD core. We have support for PCIe
bus, which is used on FPGA prototyping, and
for the OMAP5, more adaptation (or glue)
layers can be easily added and the driver
is half prepared to handle any possible
configuration the HW engineer has chosen
considering we have the information on
one of the GHWPARAMS registers to do
runtime checking of certain features.

More runtime checks can, and should, be added
in order to make this driver even more flexible
with regards to number of endpoints, FIFO sizes,
transfer types, etc.

While this supports only the device side, for
now, we will add support for Host side (xHCI -
see the updated series Sebastian has sent [1])
and OTG after we have it all stabilized.

[1] http://marc.info/?l=linux-usb&amp;m=131341992020339&amp;w=2

Signed-off-by: Felipe Balbi &lt;balbi@ti.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@suse.de&gt;
</pre>
</div>
</content>
</entry>
</feed>
