Commit graph

9 commits

Author SHA1 Message Date
Simon Glass
cd93d625fd common: Drop linux/bitops.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:23 -04:00
Fabrice Gasnier
7fd9f31c6b usb: dwc2: fix gadget disconnect
This fixes a disconnect issue detected with fastboot command, when using
dwc2 driver.
- On u-boot side:
uboot>$ fastboot 0
- On USB host PC side, few seconds after
PC>$ fastboot reboot # Get stuck, uboot target never reboots

By enabling DEBUG_ISR logs, the bus suspend interrupt is seen before the
PC command has been issued. When the USB bus suspend occurs, there's a HACK
that disables the fastboot (composite driver). Here is the call stack
upon USB bus suspend:
- dwc2_handle_usb_suspend_intr()
  - dev->driver->disconnect()
    - composite_disconnect()
      - reset_config()
        - f->disable()
          - fastboot_disable()
            - usb_ep_disable(f_fb->out_ep);
            - usb_ep_disable(f_fb->in_ep);
            .. other disable calls.

When the resume interrupt happens, everything has been disabled, then
nothing happens. fastboot command gets stuck on HOST side.

Remove original HACK, that disconnects the composite driver upon
USB bus suspend. Implement disconnect detection instead:
- check GINTSTS OTG interrupt
- read GOTGINT register
- check GOTGINT, SesEndDet bit (e.g. session end)
This is inspired by what is implemented currently in Linux dwc2 driver.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Reviewed-by: Marek Vasut <marex@denx.de>
2019-04-21 10:26:52 +02:00
Patrick Delaunay
931e9d7aa7 usb: dwc2: add support for STM32MP1
Add compatible "st,stm32mp1-hsotg" and associated driver data to manage
the usb33d-supply and the ST specific register for VBus sensing.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
# Conflicts:
#	drivers/usb/gadget/dwc2_udc_otg.c
Reviewed-by: Lukasz Majewski <lukma@denx.de>
2019-04-21 10:26:52 +02:00
Patrick Delaunay
5bd97e8073 usb: dwc2_udc_otg: Read MAX_HW_ENDPOINT from HWCFG4 register
Some DWC2 ip variant doesn't use 16 hardware endpoint as hardcoded
in the driver. Bits INEps [29:26] of HWCFG4 register allows to get
this information.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
2019-04-21 10:26:52 +02:00
Patrick Delaunay
0fdd0bc621 usb: dwc2: Add force-b-session-valid support
Handle "force-b-session-valid" property from DT.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
2019-04-21 10:26:52 +02:00
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00
Xu Ziyuan
4711788267 usb: dwc2-otg: adjust fifo size via platform data
The total FIFO size of some SoCs may be different from the existen, this
patch supports fifo size setting from platform data.

Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
2016-07-25 20:44:19 -06:00
Marek Vasut
507e677bc4 usb: s3c-otg: Rename remaining macros
The driver is actually for the Designware DWC2 controller.
This patch renames the remaining S3C_* macros to match the
DWC2 naming.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-12-17 21:54:40 +01:00
Marek Vasut
f4d9bd06f7 usb: s3c-otg: Rename local headers to dwc2_*h
The driver is actually for the Designware DWC2 controller.
This patch renames the local header files to dwc2_*h and
adjusts the sources to use the new names.

Signed-off-by: Marek Vasut <marex@denx.de>
2015-12-17 21:54:40 +01:00
Renamed from drivers/usb/gadget/s3c_udc_otg_regs.h (Browse further)