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  1. 16 12月, 2010 5 次提交
  3. 11 12月, 2010 26 次提交
  5. 10 12月, 2010 9 次提交
    • H
      arm: OMAP4430: musb: Configure musb to OTG mode · 09e72002
      由 Hema HK 提交于 
      Enabling the musb OTG mode for SDP and PANDA boards.
Signed-off-by: NHema HK <hemahk@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>
      09e72002
    • H
      usb: musb: Adding musb support for OMAP4430 · 594632ef
      由 Hema HK 提交于 
      OMAP4430 supports UTMI and ULPI types of transceiver interface.

In UTMI mode: The PHY is embedded within OMAP4430. The transceiver functionality
is split between the twl6030 PMIC chip and OMAP4430. The VBUS, ID pin
sensing and OTG SRP generation part is integrated in TWL6030 and UTMI PHY
functionality is embedded within the OMAP4430.

There is no direct interactions between the MUSB controller and TWL6030
chip to communicate the session-valid, session-end and ID-GND events.
It has to be done through a software by setting/resetting bits in
one of the control module register of OMAP4430 which in turn toggles
the appropriate signals to MUSB controller.

musb driver is register for blocking notifications from the transceiver
driver to get the event notifications for connect/disconnect and ID-GND.
Based on these events call the transceiver init/shutdown function to
configure the transceiver to toggle the VBUS valid, session end and ID_GND
signals to musb and power on/off the internal PHY.

For ID_GND event notifications, toggle the ID_GND signal and then wait for
musb to be configured as "A" device, and then call the transceiver function
to set the VBUS.

In OTG mode and musb as a host, When the Micro A connector used, VBUS is turned on
and session bit set. When the device is connected, enumeration goes through.
When the device disconnected from the other end of the connector(ID is still grounded),
link will detect the disconnect and end the session. When the device is connected back,
there are no events generated in the TWL6030-usb, and link is already down.
So the device is not detected. Removed the session bit disable code which
will recognize the connect of the device.

Limitation: In OTG host mode, if device is connected during boot, it does not get
detected. If disconnect and connect it back or connect after boot only it works.
Fix for this, I will submit seperate patch later.
Signed-off-by: NHema HK <hemahk@ti.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>
      594632ef
    • H
      usb: otg: TWL6030: Add twl6030_usb file for compilation · 221946d0
      由 Hema HK 提交于 
      Add the twl6030_usb transceiver file for compilation.
Signed-off-by: NHema HK <hemahk@ti.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>
      221946d0
    • H
      mfd: TWL6030: OMAP4: Registering the TWL6030-usb device · e70357e3
      由 Hema HK 提交于 
      Registering the twl6030-usb transceiver device as a child to twl6030 core.
Removed the NOP transceiver init call from board file.

Populated twl4030_usb_data platform data structure with the function
pointers for OMAP4430 internal PHY operation to be used by twl630-usb driver.
Signed-off-by: NHema HK <hemahk@ti.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>
      e70357e3
    • H
      usb: musb: TWL6030: Selecting TWL6030_USB transceiver · 4c42fbc9
      由 Hema HK 提交于 
      Selecting the twl6030-usb for OMAP4430SDP and OMAP4PANDA boards and
adding OMAP4 internal phy code for compilation
Signed-off-by: NHema HK <hemahk@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>
      4c42fbc9
    • H
      usb: otg: Kconfig: Add Kconfig option for TWL6030 transceiver. · 6b296123
      由 Hema HK 提交于 
      Added the TWL6030-usb transceiver option in the Kconfig
Signed-off-by: NHema HK <hemahk@ti.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NFelipe Balbi <balbi@ti.com>
      6b296123
    • H
      usb: otg: Adding twl6030-usb transceiver driver for OMAP4430 · c33fad0c
      由 Hema HK 提交于 
      Adding the twl6030-usb transceiver support for OMAP4 musb driver.

OMAP4 supports 2 types of transceiver interface.

1. UTMI: The PHY is embedded within OMAP4. The transceiver functionality
is split between the twl6030 PMIC chip and OMAP4430. The VBUS, ID pin
sensing and OTG SRP generation part is integrated in TWL6030 and UTMI PHY
functionality is embedded within the OMAP4430.

There is no direct interactions between the MUSB controller and TWL6030
chip to communicate the session-valid, session-end and ID-GND events.
It has to be done through a software by setting/resetting bits in
one of the control module register of OMAP4430 which in turn toggles
the appropriate signals to MUSB controller.

The internal transceiver has functional clocks and
powerdown bits to powerdown the PHY for power saving.

Since there is no option available for having 2 transceiver drivers
for one USB controller, internal PHY specific APIs are passed through
plaform_data function pointers to use in the twl6030-usb transceiver
driver.

2. ULPI interface is provided for off-chip transceivers.
Signed-off-by: NHema HK <hemahk@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NFelipe Balbi <balbi@ti.com>
      c33fad0c
    • H
      mfd: TWL6030: USBOTG VBUS event generation on · 77b1d3fa
      由 Hema HK 提交于 
      With TWL6030-usb, VBUS SESS_VLD and SESS_END events are not generated
as expected. When these interrupts are enabled, charger VBUS detection
interrupt does not get generated. So USBOTG has to be dependent on charger
VBUS interrupts.
So added one bit for USBOTG and changed the handler to call the
USBOTG handler whenever there is a charger VBUS interrpt.

VBUS SESS_VLD and SESS_END event generation issue is under debug with
HW team. This fix might not be required once after fixing the issue.
Signed-off-by: NBalaji TK <balajitk@ti.com>
Signed-off-by: NHema HK <hemahk@ti.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>
      77b1d3fa
    • M
      usb: musb: add support for ux500 platform · 4bc36fd3
      由 Mian Yousaf Kaukab 提交于 
      Initial support for u8500 and u5500 platform.
Signed-off-by: NMian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
Acked-by: NLinus Walleij <linus.walleij@stericsson.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>
      4bc36fd3