usb: dwc2: gadget: support force b_session valid

Change-Id: I557280ba69c75a2a230981c22c11ff8e42cc5a94
Signed-off-by: William Wu <william.wu@rock-chips.com>

Merge branch 'next-dev' into thunder-boot

UPSTREAM: usb: dwc2: fix possible alignment issues

Since upgrading to gcc9, warnings are issued:
"taking address of packed member of ‘...’ may result in an unaligned
pointer value"

Fix this by conv

UPSTREAM: usb: dwc2: fix possible alignment issues

Since upgrading to gcc9, warnings are issued:
"taking address of packed member of ‘...’ may result in an unaligned
pointer value"

Fix this by converting dwc2_fifo_read to use unaligned access since packed
structures may be on an unaligned address, depending on USB hardware.

Change-Id: I2cc286df6fda386353cd2d350534e8ae398e67bb
Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
(cherry picked from commit 7dc0ac6015718f5fb66bb79bf53df19f64fbfeee)

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UPSTREAM: 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 secon

UPSTREAM: 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.

Change-Id: I061bf19a7be2c85fdde3490ef792f18612de9c56
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
(cherry picked from commit 7fd9f31c6bd13609da61b985cf8f5f65ebebd913)

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UPSTREAM: usb: dwc2: make casts of ep->dma_buf consistent

In most places in the code we cast this to an unsigned long, but in one
place we cast to an unsigned int. For consistency and to fix a warn

UPSTREAM: usb: dwc2: make casts of ep->dma_buf consistent

In most places in the code we cast this to an unsigned long, but in one
place we cast to an unsigned int. For consistency and to fix a warning
on 64bit targets, always cast this to unsigned long. For the long term
we should however change the declaration of dma_buf.

Conflicts:
drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c

Change-Id: I56b7b6da2d716a9cd40ec4edbc928de433dfd4ca
Cc: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
(cherry picked from commit a4d403290e32f95cfd254f2778e08f655ddd5a49)

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usb: dwc2: amend the maximum request length

Amend the maximum request length equate to the maximum transfer
size of endpoind.

Change-Id: I926c23ddf347f33cf166c51c80d099441978ca7e
Signed-off-by: Fra

usb: dwc2: amend the maximum request length

Amend the maximum request length equate to the maximum transfer
size of endpoind.

Change-Id: I926c23ddf347f33cf166c51c80d099441978ca7e
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>

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rockchip: usb: dwc2: fix compile warning

Change-Id: Ic0b190aa93378faf28147306d195fbc49c28c34d
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>

UPSTREAM: usb: dwc2: Align size of invalidating dcache before starting DMA

During using dwc2 usb gadget, if usb message size is too small,
following cache misaligned warning is shown:

CACHE: Mis

UPSTREAM: usb: dwc2: Align size of invalidating dcache before starting DMA

During using dwc2 usb gadget, if usb message size is too small,
following cache misaligned warning is shown:

CACHE: Misaligned operation at range [bfdbcb00, bfdbcb04]

Align size of invalidating dcache before starting DMA to remove the
warning.

Change-Id: Ibd9040be45da03174d63313e302b994720c7edd3
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
(cherry picked from commit a939af0c748e2ea1eeb8cf47fa9771a95786de70)

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usb: gadget: dwc2: avoid reset core before devices connected

Theoretically, the UDC register need not reconfig when GINTSTS.USBRst
is set, and only do core reset if the devices was connected before.

usb: gadget: dwc2: avoid reset core before devices connected

Theoretically, the UDC register need not reconfig when GINTSTS.USBRst
is set, and only do core reset if the devices was connected before.
This change adds _connected_ flag to check the devices was really
connected or not. As an optimization, reset device address to zero
while GINTSTS.USBRst is set.

This patch fix usb connect failed when continuously perform the
'fastboot reboot-bootloader' command.

Change-Id: I6a78228e147d2274329d922ac3f3ffef19492e7e
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>

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usb: dwc2 : invalidate dcache before starting DMA

Invalidate dcache before starting the DMA to ensure coherency. In case
there are any dirty lines from the DMA buffer in the cache, subsequent
cache-

usb: dwc2 : invalidate dcache before starting DMA

Invalidate dcache before starting the DMA to ensure coherency. In case
there are any dirty lines from the DMA buffer in the cache, subsequent
cache-line replacements may corrupt the buffer in memory while the DMA
is still going on. Cache-line replacement can happen if the CPU tries to
bring some other memory locations into the cache while the DMA is going
on.

Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>

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Merge branch 'master' of git://www.denx.de/git/u-boot-usb

usb: s3c-otg: Fix remaining bytes in debug messages

Remaining bytes means bytes that are not yet transferred
and not the bytes that were transferred in the last transfer.

Reported-by: Lukasz Majews

usb: s3c-otg: Fix remaining bytes in debug messages

Remaining bytes means bytes that are not yet transferred
and not the bytes that were transferred in the last transfer.

Reported-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Tested-by: Steve Rae <srae@broadcom.com>
[Test HW: bcm28155_ap board]

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usb: s3c-otg: Fix short packet for request size > ep.maxpacket

Request size can be greater than ep.packet and still end in a
short packet. We need to tackle this case as end of transfer
(if short_no

usb: s3c-otg: Fix short packet for request size > ep.maxpacket

Request size can be greater than ep.packet and still end in a
short packet. We need to tackle this case as end of transfer
(if short_not_ok is not set) as indicated in USB 2.0 Specification [1],
else we get stuck up on certain protocols like fastboot.

[1] - USB2.0 Specification, Section 5.3.2 Pipes

Reported-by: Steve Rae <steve.rae@broadcom.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Tested-by: Steve Rae <steve.rae@broadcom.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>

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Merge branch 'master' of git://git.denx.de/u-boot-usb

usb: s3c-otg: Tweak the comments

The driver is actually for the Designware DWC2 controller.
Tweak the comments in the driver to reflect this fact.

Signed-off-by: Marek Vasut <marex@denx.de>

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 <

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>

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usb: s3c-otg: Rename sources to dwc2_*c

The driver is actually for the Designware DWC2 controller.
This patch renames the local source files to dwc2_*c and
adjusts the Makefile to use the new names.

usb: s3c-otg: Rename sources to dwc2_*c

The driver is actually for the Designware DWC2 controller.
This patch renames the local source files to dwc2_*c and
adjusts the Makefile to use the new names.

Signed-off-by: Marek Vasut <marex@denx.de>

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