Add a private data pointer that clients of EHCI can use to access their
private information. This establishes a link between struct ehci_ctrl and
its associated controller data structure.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NMarek Vasut <marex@denx.de>

Adjust this function so that it is passed an EHCI controller pointer so that
implementations can look up their controller.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NMarek Vasut <marex@denx.de>

Put these at the top of the file so they are in one place. Also add function
prototypes to the header file to avoid call site mismatches.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NMarek Vasut <marex@denx.de>

CMD_IAAD (Interrupt on Async Advance Doorbell) is bit 6, not bit 5.
While we are here, sort the flags.
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>

Periodic schedules tracks how many int_queue-s are active, and decides whether
or not to en/disable the periodic schedule based on this. This is clearly
a per controller thing.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>

This paramter will later be used to initialize OTG ports in
host or device mode.
Signed-off-by: NTroy Kisky <troy.kisky@boundarydevices.com>

Macros defining bmRequestType field of USB device request,
given in table 9.2 USB 2.0 spec, are rather generic macros
which can be further used by other Host controller stacks.
So moving them to usb_defs header.
Signed-off-by: NVivek Gautam <gautam.vivek@samsung.com>
Cc: Julius Werner <jwerner@chromium.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Cc: Dan Murphy <dmurphy@ti.com>
Cc: Marek Vasut <marex@denx.de>

Move the struct ehci_ctrl defition from ehci-hcd.c into ehci.h
so it can be re-used by drivers. In particular, the mv_udc driver
can benefit from this move.
Signed-off-by: NMarek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Lei Wen <leiwen@marvell.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Stefano Babic <sbabic@denx.de>

The interrupt endpoint handling code stores the buffer pointer in the QH
padding field. We need to make it the size of a pointer to avoid strict
aliasing issue with the compiler.
Signed-off-by: NVincent Palatin <vpalatin@chromium.org>
Signed-off-by: NSimon Glass <sjg@chromium.org>

Interrupt transfers aren't meant to be used from the async list
(the EHCI spec indicates trouble with low/full-speed intr on async).

Build a periodic list instead, and provide an API to make use of it.
Then, use that API from the existing interrupt transfer API.

This provides support for USB keyboards using EHCI.

Use timeouts to ensure we cannot get stuck in the keyboard scanning
if something wrong happens (USB device unplugged or fatal I/O error)
Signed-off-by: NVincent Palatin <vpalatin@chromium.org>
Signed-off-by: NJulius Werner <jwerner@chromium.org>
Signed-off-by: NSimon Glass <sjg@chromium.org>

Kill off ehci-core.h
It was used to specify some static controller data. To support more than
one controller being active at any time we have to carry the controller
data ourselfes. Change the ehci interface accordingly.

NOTE: OMAP implemented the ehci stuff a bit backwards and should be fixed
to do the same thing as other platforms. But the change for now is at least
compile clean.
Signed-off-by: NLucas Stach <dev@lynxeye.de>
Reviewed-by: NMarek Vasut <marex@denx.de>

Make some light cosmetic code cleanup by the way.
Signed-off-by: NBenoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Ilya Yanok <ilya.yanok@cogentembedded.com>
Cc: Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net>

Signed-off-by: NBenoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Ilya Yanok <ilya.yanok@cogentembedded.com>
Cc: Stefan Herbrechtsmeier <stefan@herbrechtsmeier.net>

CONFIG_USB_EHCI_TXFIFO_THRESH enables setting of the txfilltuning
field in the EHCI controller on reset.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Acked-by: NRemy Bohmer <linux@bohmer.net>
Signed-off-by: NTom Warren <twarren@nvidia.com>

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: NJason Kridner <jkridner@beagleboard.org>
Signed-off-by: NJoel A Fernandes <agnel.joel@gmail.com>
Cc: Alexander Holler <holler@ahsoftware.de>
Cc: Sandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: NSandeep Paulraj <s-paulraj@ti.com>

Commit 3ed16071 "USB: sync Queue Element Transfer Descriptor against
EHCI spec" added an "__attribute__ ((aligned (32)))" to the
declaration of struct qTD, as used for example in the Linux kernel as
well.

However, it turns out that this attribute causes errors in "usb start"
(like "ERROR: NOT USB_CONFIG_DESC 7b" and similar). Drop the attribute
again.
Signed-off-by: NWolfgang Denk <wd@denx.de>
Cc: Dan Lykowski <lykowdk@gmail.com>
Cc: Remy Bohmer <linux@bohmer.net>
Cc: Stefano Babic <sbabic@denx.de>

Appendix B "EHCI 64-Bit Data Structures" of the "Enhanced Host
Controller Interface Specification for Universal Serial Bus" (Rev.
1.0, March 12, 2002) defines additional fields which were missing in
U-Boot's struct qTD; as these are also present in recent versions of
struct ehci_qtd in the Linux kernel, we add them here, too.

This fixes some nasty memory corruption problems.
Reported-by: NDan Lykowski <lykowdk@gmail.com>
See http://permalink.gmane.org/gmane.comp.boot-loaders.u-boot/76942Signed-off-by: NWolfgang Denk <wd@denx.de>
Cc: Remy Bohmer <linux@bohmer.net>
Cc: Dan Lykowski <lykowdk@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
Tested-by: NStefano Babic <sbabic@denx.de>

Signed-off-by: NFrancesco Rendine <francesco.rendine@valueteam.com>
Signed-off-by: NDamien Dusha <d.dusha@gmail.com>
Signed-off-by: NAnatolij Gustschin <agust@denx.de>

Coding style cleanup; slight file restructuring.
Signed-off-by: NWolfgang Denk <wd@denx.de>
Acked-by: NRemy Bohmer <linux@bohmer.net>

move to linux usb driver organisation

as following

drivers/usb/gadget
drivers/usb/host
drivers/usb/musb
Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: NRemy Bohmer <linux@bohmer.net>

This patch adds routines to handle (flush/invalidate) the dcache for the
QH and qTD structures and data buffers. This is needed on platforms using
this EHCI support with dcache enabled (like the MIPS VCT board port).
Signed-off-by: NStefan Roese <sr@denx.de>
Signed-off-by: NRemy Bohmer <linux@bohmer.net>

USB ehci configuration parameter:

#define CONFIG_CMD_USB          1
#define CONFIG_USB_STORAGE      1
#define CONFIG_USB_EHCI
#define CONFIG_USB_EHCI_IXP4XX	1
#define CONFIG_EHCI_IS_TDI	1
#define CONFIG_EHCI_DESC_BIG_ENDIAN     1
#define CONFIG_EHCI_MMIO_BIG_ENDIAN     1
#define CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS 2
#define CONFIG_LEGACY_USB_INIT_SEQ      1

2 USB Device(s) found
       scanning bus for storage devices... 0 Storage Device(s) found
=> usb tree

Device Tree:
  1  Hub (1.5MBit/s, 0mA)
  |  u-boot EHCI Host Controller
  |
  |+-2  Mass Storage (12MBit/s, 100mA)
       Sony Storage Media 0C07040930296

=>
Signed-off-by: NMichael Trimarchi <trimarchimichael@yahoo.it>
Signed-off-by: NRemy Böhmer <linux@bohmer.net>

- fix ehci_readl, ehci_writel
- introduce new define in ehci.h
- introduce the handshake function for waiting on a register
- fix usb_ehci_fsl with the new HC_LENGTH macro
Signed-off-by: NMichael Trimarchi <trimarchimichael@yahoo.it>
Signed-off-by: NRemy Böhmer <linux@bohmer.net>

IXP465 board and I find some errors in the code. This
patch fix:
- descriptor initizialization (config, interface and endpoint
  must be one next-to the other when the USB_DT_CONFIG message
  is send.
- FIX little/endian bigendian (introduce the CONFIG_EHCI_DESC_BIG_ENDIAN
  and the CONFIG_EHCI_MMIO_BIG_ENDIAN)
- Introduce the linux version of the usb_config_descriptor and
  usb_interface descriptor. This descriptor does't contains
  u-boot extension.
Signed-off-by: NMichael Trimarchi <trimarchimichael@yahoo.it>
Signed-off-by: NRemy Böhmer <linux@bohmer.net>

Add USB ehci core support
Signed-off-by: NMichael Trimarchi <trimarchi@gandalf.sssup.it>
Signed-off-by: NRemy Böhmer <linux@bohmer.net>