Reorder the remove path to deregister the controller first (and return
early on failure), then shut down PHY/clocks and finally assert reset.
This prevents register reads/writes after reset and avoids undefined
behavior.
Signed-off-by: Boon Khai Ng <boon.khai.ng@altera.com>
Reviewed-by: Marek Vasut <marek.vasut@mailbox.org>
Current implementation does not check the return value of spl load
function. If the spl load is failed, SPL may meet crash due to
spl_image variable is not initialized. Add the failure check,
so SPL can print and stop with error.
Signed-off-by: Ye Li <ye.li@nxp.com>
Fixes: 2c72ead738 ("usb: gadget: f_sdp: Allow SPL to load and boot FIT via SDP")
Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Link: https://patch.msgid.link/20260522072705.1156220-1-ye.li@nxp.com
Signed-off-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Restyle all Kconfigs for "usb":
Menu entries : no space left
Menu attributes: 1 TAB
Help text : 1 TAB + 2 spaces
Replace '---help---' by 'help'
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Currently, the bi_dram[] information is stored in the board info
structure (bd). Because bd is only valid after reserve_board(),
dram_init_banksize() must be called late in the initialization process.
This limitation is problematic, as it forces us to rely on a variety of
bespoke functions to determine board RAM, bank memory sizes, and other
early setup requirements.
By moving bi_dram[] into the global data (gd), we can run it earlier.
This is particularly convenient since boards define their own
dram_init_banksize() routines, which do not always rely on parsing
Device Tree (DT) memory nodes.
Additionally, U-Boot defaults to relocating to the top of the first memory
bank. While boards currently use custom functions to override this
behavior, having the DRAM bank information available earlier in gd makes
relocating to a different bank trivial and standardizes the process.
Reviewed-by: Anshul Dalal <anshuld@ti.com>
Tested-by: Michal Simek <michal.simek@amd.com> # Versal Gen 2 Vek385
Tested-by: Anshul Dalal <anshuld@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Tested-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
The read_poll_timeout() macro breaks out of its loop when the condition
evaluates to true. The current code uses "!tx_complete" as the
condition, which means it exits immediately when tx_complete is false
(i.e., transmission has NOT completed yet), rather than waiting for
completion.
Fix the condition to "tx_complete" so that the poll loop waits until
the TCPC signals transmission success/failure/discard before
proceeding.
Without this fix, tcpm_pd_transmit() returns before the TCPC has
finished transmitting, causing the PD state machine to proceed with
stale tx_status values.
Fixes: 1db4c0ac77 ("usb: tcpm: add core framework")
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
__FUNCTION__ and __PRETTY_FUNCTION__ are gcc extensions that predate
the C99 __func__ identifier. scripts/checkpatch.pl emits a warning
for any new use of __FUNCTION__ and recommends __func__ instead. In
C (unlike C++) __PRETTY_FUNCTION__ is identical to __func__ because
C function names do not carry signature information, so the
distinction has no behavioural effect here. The majority of the tree
already uses __func__, but a handful of older files in arch/, board/,
boot/, drivers/, examples/ and include/ still carry the gcc spellings
(55 occurrences of __FUNCTION__ across 19 files plus one
__PRETTY_FUNCTION__ in drivers/usb/musb-new/omap2430.c). Convert
them all to the C99 form so the tree is consistent and new patches
in these areas do not have to follow an outdated local style.
Ten "Unnecessary ftrace-like logging - prefer using ftrace" warnings
remain on the printf("%s\n", __func__) and dbg("%s\n", __func__)
function-entry traces in drivers/net/rtl8169.c (behind DEBUG_RTL8169*
preprocessor guards) and drivers/usb/host/ohci-hcd.c. checkpatch
matches the literal "%s\n", __func__ shape regardless of the wrapper,
so silencing those warnings would require changing the debug message
text or removing the traces entirely.
Signed-off-by: Aristo Chen <aristo.chen@canonical.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Set the ops structure as static const. The structure is not accessible
from outside of this driver and is not going to be modified at runtime.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Set the ops structure as static const. The structure is not accessible
from outside of this driver and is not going to be modified at runtime.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Set the ops structure as static const. The structure is not accessible
from outside of this driver and is not going to be modified at runtime.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Add armada-375-xhci to the compatible list in XHCI MVEBU driver.
Tested with WD MyCloud Gen2 NAS.
Signed-off-by: Tony Dinh <mibodhi@gmail.com>
Reviewed-by: Marek Vasut <marek.vasut+usb@mailbox.org>
Endpoints should not be disabled on bus reset inside UDC driver,
otherwise a race condition will happen between gadget driver. Gadget
driver will free the requests and disable endpoints in disconnect ops.
Also remove outdated comment about it in usba_ep_disable().
Signed-off-by: Zixun LI <admin@hifiphile.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Fixes: 59310d1ecb ("usb: gadget: introduce 'enabled' flag in struct usb_ep")
Link: https://patch.msgid.link/20260515-udc_ep-v2-1-cd335b4e62e4@hifiphile.com
[mkorpershoek: removed empty newline between Fixes: and sob]
Signed-off-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
The dwc3_free_one_event_buffer() function incorrectly called free()
on event buffer structures allocated with devm_kzalloc(). This
caused heap corruption and a synchronous abort when exiting
fastboot mode via "fastboot continue".
Device-managed memory is automatically freed when the device is
removed, so manual deallocation causes the heap allocator to access
corrupted metadata.
Fixes: 884b10e86a ("usb: dwc3: core: fix memory leaks in event buffer cleanup")
Signed-off-by: Balaji Selvanathan <balaji.selvanathan@oss.qualcomm.com>
Reviewed-by: Marek Vasut <marek.vasut+usb@mailbox.org>
The symbol USB_EMUL is how sandbox has access to USB. It's
implementation however enforces a few other requirements. It must have
SCSI enabled, and in turn that means it must have BLK enabled. Finally,
we should not be using SANDBOX itself as a symbol to decide what to
build or not build here, as SANDBOX is selected for COMPILE_TEST builds
as well and so may not have enabled the sandbox specific USB support.
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Marek Vasut <marek.vasut+usb@mailbox.org>
The USB_RENESAS_USBHS functionality can only work with DM_USB_GADGET
enabled, so express this dependency in Kconfig.
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Quentin Schulz <foss+uboot@0leil.net> says:
This migrates the net options away from the main Kconfig to net/Kconfig,
rename the current NET option to NET_LEGACY to really highlight what it
is and hopefully encourage more people to use lwIP, add a new NET
menuconfig (but keep NO_NET as an alias to NET=n for now) which then
allows us to replace all the "if legacy_stack || lwip_stack" checks with
"if net_support" which is easier to read and maintain.
The only doubt I have is wrt SYS_RX_ETH_BUFFER which seems to be needed
for now even when no network is configured? Likely due to
include/net-common.h with PKTBUFSRX?
No change in behavior is intended. Only change in defconfig including
other defconfigs where NO_NET=y or NET is not set, in which case NO_NET
is not set or NET=y should be set in the top defconfig. Similar change
required for config fragments. See commit log in patch adding NET
menuconfig for details.
This was tested based on 70fd0c3bb7 ("x86: there is no
CONFIG_UBOOT_ROMSIZE_KB_12288"), from within the GitLab CI container
trini/u-boot-gitlab-ci-runner:noble-20251013-23Jan2026 and set up
similarly as in "build all platforms in a single job" GitLab CI job.
#!/usr/bin/env bash
set -o pipefail
set -eux
ARGS="-BvelPEWM --reproducible-builds --step 0"
./tools/buildman/buildman -o ${O} --force-build $ARGS -CE $*
./tools/buildman/buildman -o ${O} $ARGS -Ssd $*
O=../build/u-boot/ ../u-boot.sh -b master^..b4/net-kconfig |& tee ../log.txt
I can't really decipher the log.txt, but there's no line starting with
+ which would be an error according to tools/buildman/builder.py help
text. Additionally, because I started the script with set -e set and
because buildman has an exit code != 0 when it fails to build a board,
and I have the summary printed (which is the second buildman call), I
believe it means all builds passed.
The summary is the following:
aarch64: (for 537/537 boards) all +0.0 rodata +0.0
uniphier_v8 : all +1 rodata +1
u-boot: add: 0/0, grow: 1/0 bytes: 1/0 (1)
function old new delta
data_gz 10640 10641 +1
arm: (for 733/733 boards) all -0.0 rodata -0.0
uniphier_v7 : all -1 rodata -1
u-boot: add: 0/0, grow: 0/-1 bytes: 0/-1 (-1)
function old new delta
data_gz 11919 11918 -1
opos6uldev : all -3 rodata -3
u-boot: add: 0/0, grow: 0/-1 bytes: 0/-3 (-3)
function old new delta
data_gz 18778 18775 -3
uniphier_ld4_sld8: all -3 rodata -3
u-boot: add: 0/0, grow: 0/-1 bytes: 0/-3 (-3)
function old new delta
data_gz 11276 11273 -3
stemmy : all -20 rodata -20
u-boot: add: 0/0, grow: 0/-1 bytes: 0/-20 (-20)
function old new delta
data_gz 15783 15763 -20
As far as I could tell this data_gz is an automatically generated array
when CONFIG_CMD_CONFIG is enabled. It is the compressed .config stored
in binary form. Because I'm changing the name of symbols, replacing a
menu with a menuconfig, additional text makes it to .config and the
"# Networking" section in .config disappears.
Here is the diff for the 5 defconfigs listed above, generated with:
for f in build/*-m; do
diff --unified=0 $f/.config $(dirname $f)/$(basename -a -s '-m' $f)/.config
done
(-m is the build directory for master, and without the suffix, it's the
top commit of this series)
"""
--- build/opos6uldev-m/.config 2026-04-20 10:53:49.804528526 +0200
+++ build/opos6uldev/.config 2026-04-20 11:03:37.430242767 +0200
@@ -970,4 +969,0 @@
-
-#
-# Networking
-#
@@ -975,0 +972 @@
+CONFIG_NET_LEGACY=y
--- build/stemmy-m/.config 2026-04-20 11:01:33.653698123 +0200
+++ build/stemmy/.config 2026-04-20 11:04:53.452577311 +0200
@@ -733,4 +732,0 @@
-
-#
-# Networking
-#
@@ -738,2 +733,0 @@
-# CONFIG_NET is not set
-# CONFIG_NET_LWIP is not set
--- build/uniphier_ld4_sld8-m/.config 2026-04-20 11:00:41.605469071 +0200
+++ build/uniphier_ld4_sld8/.config 2026-04-20 11:04:22.226439899 +0200
@@ -997,4 +996,0 @@
-
-#
-# Networking
-#
@@ -1002,0 +999 @@
+CONFIG_NET_LEGACY=y
--- build/uniphier_v7-m/.config 2026-04-20 10:53:04.019307319 +0200
+++ build/uniphier_v7/.config 2026-04-20 11:03:01.688085486 +0200
@@ -1004,4 +1003,0 @@
-
-#
-# Networking
-#
@@ -1009,0 +1006 @@
+CONFIG_NET_LEGACY=y
--- build/uniphier_v8-m/.config 2026-04-20 10:43:05.614441175 +0200
+++ build/uniphier_v8/.config 2026-04-20 10:41:03.214852130 +0200
@@ -875,4 +874,0 @@
-
-#
-# Networking
-#
@@ -880,0 +877 @@
+CONFIG_NET_LEGACY=y
"""
This is fine:
- Networking menu doesn't exist anymore so "#\n# Networking\n#\n" won't
be in .config anymore.
- opos6uldev, uniphier_ld4_sld8, uniphier_v7 and uniphier_v8 all have
(old) CONFIG_NET enabled, (new) CONFIG_NET will still be set but
CONFIG_NET_LEGACY also needs to be defined now to reflect the stack
choice (even if default),
- stemmy has CONFIG_NO_NET set, which means CONFIG_NET and
CONFIG_NET_LWIP are not reachable anymore hence why they don't need to
be part of .config,
GitLab CI was run on this series (well, not exactly, but it's only
changes to the git logs that were made):
https://source.denx.de/u-boot/contributors/qschulz/u-boot/-/pipelines/29849
It passes.
Link: https://lore.kernel.org/r/20260420-net-kconfig-v1-0-9900002d8e72@cherry.de
Since the move to make NET a menuconfig and NO_NET a synonym of NET=n,
when NET is enabled, NET_LEGACY || NET_LWIP is necessarily true, so
let's simplify the various checks across the codebase.
SPL_NET_LWIP doesn't exist but SPL_NET_LEGACY is an alias for SPL_NET so
the proper symbol is still defined in SPL whenever needed.
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Highlight that NET really is the legacy networking stack by renaming the
option to NET_LEGACY.
This requires us to add an SPL_NET_LEGACY alias to SPL_NET as otherwise
CONFIG_IS_ENABLED(NET_LEGACY) will not work for SPL.
The "depends on !NET_LWIP" for SPL_NET clearly highlights that it is
using the legacy networking app so this seems fine to do.
This also has the benefit of removing potential confusion on NET being a
specific networking stack instead of "any" network stack.
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Various Qualcomm additions this cycle:
* USB superspeed support for 1 platform
* Initial support for the Milos platform and the Fairphone Gen 6
(chainloaded from ABL)
* Improved support for booting with OP-TEE on supported platforms
* Initial basic power domain support
Notably there is a generic change to the device core, missing power
domains will no longer cause a device to fail probe and instead will
just print a warning. This shouldn't affect any existing platforms.
Add a 100 ms delay after clearing the core soft reset bit to ensure
the DWC3 controller has sufficient time to complete its reset
sequence before subsequent register accesses.
Without this delay, USB initialization can fail on some Qualcomm
platforms, particularly when using super-speed capable PHYs like
the QMP USB3-DP Combo PHY on SC7280/QCM6490.
Taken from Linux commit f88359e1588b ("usb: dwc3: core: Do core softreset when switch mode")
Signed-off-by: Balaji Selvanathan <balaji.selvanathan@oss.qualcomm.com>
Reviewed-by: Varadarajan Narayanan <varadarajan.narayanan@oss.qualcomm.com>
Link: https://patch.msgid.link/20251203110735.1959862-3-balaji.selvanathan@oss.qualcomm.com
Signed-off-by: Casey Connolly <casey.connolly@linaro.org>
The Renesas RZ/G2L (and RZ/G2LC) USBHS controller requires the
CNEN bit in the SYSCFG register to be set for function operation.
Additionally, its CFIFO is byte-addressable.
Introduce a new renesas_usbhs_driver_param structure for the
RZ/G2L SoC and link it via the udevice_id data pointer. Update
usbhs_probe() to accept the udevice pointer to retrieve these
parameters during initialization.
This alignment follows the logic used in the Linux kernel
renesas_usbhs driver.
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Signed-off-by: Michele Bisogno <micbis.openwrt@gmail.com>
Some Renesas SoCs, such as the RZ/G2L, require the USBHS core to
be explicitly deasserted from reset before register access is
possible.
Update the OTG probe to handle a bulk reset controller. To maintain
hardware stability, the reset is deasserted after clocks are
enabled in probe(), and asserted before clocks are disabled
in remove().
Update the error paths in probe to ensures clocks are disabled
if the reset initialization fails.
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Signed-off-by: Michele Bisogno <micbis.openwrt@gmail.com>
The driver currently fails to unregister the USB gadget when the
device is removed or the driver is unbound. This leads to dangling
pointers in the UDC core and potential memory corruption.
Add a call to usb_del_gadget_udc() in the remove path to ensure
a clean teardown of the gadget interface.
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Signed-off-by: Michele Bisogno <micbis.openwrt@gmail.com>
In dwc3_free_one_event_buffer(), only the DMA buffer (evt->buf) was
being freed via dma_free_coherent(), but the evt structure itself was
never explicitly freed, causing a memory leak.
In dwc3_free_event_buffers(), the ev_buffs pointer array allocated
with memalign() was never freed after iterating and releasing all
individual event buffers, causing another memory leak.
Fix both leaks by freeing the evt struct in
dwc3_free_one_event_buffer() and freeing dwc->ev_buffs in
dwc3_free_event_buffers() after all entries have been released.
Signed-off-by: Gurumoorthy Santhakumar <gurumoorthy.santhakumar@oss.qualcomm.com>
Reviewed-by: Marek Vasut <marek.vasut+usb@mailbox.org>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
The U_BOOT_DRIVER macro creates a list of drivers used at link time, and
all entries here must be unique. This in turn means that all entries in
the code should also be unique in order to not lead to build failures
later with unexpected build combinations. Typically, the problem we have
here is when a driver is obviously based on another driver and didn't
update this particular field and so while the name field reflects
something unique the linker entry itself is not. In a few places this
provides a more suitable string name as well, however.
Reviewed-by: Marek Vasut <marek.vasut+usb@mailbox.org>
Reviewed-by: Svyatoslav Ryhel <clamor95@gmail.com> # Tegra
Reviewed-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Heiko Schocher <hs@nabladev.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
While USB DFU boot works with this patch, but the non USB boot modes like
SD Boot and flash boot fails for J784S4 EVM device.
So, Reverting this patch.
This reverts commit bfb530e06c.
Signed-off-by: Prasanth Babu Mantena <p-mantena@ti.com>
As exposed by "make randconfig", we have an issue with the dependencies
for USB_ISP1760. It depends on DM && OF_CONTROL being set and
functionally requires REGMAP. As part of fixing that issue, we change
"tristate" to "bool" and remove mentions of module support as that's not
a thing in U-Boot.
Reviewed-by: Marek Vasut <marek.vasut+usb@mailbox.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
u-boot-dfu-20260316
DFU:
* Make DFU_WRITE_ALT symbol available outside of DFU
* Fix PCI subclass_code warning in spl_dfu
Usb Gadget:
* Mark udc_disconnect() as static
Rockchip RK3506 is a ARM-based SoC with tri-core Cortex-A7.
Add initial arch support for the RK3506 SoC.
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Acked-by: Mattijs Korpershoek <mkorpershoek@kernel.org> # drivers/usb/gadget
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
The upstream devicetree am33xx.dtsi does not have a "ti,am33xx-usb"
compatible, it uses "ti,sysc-omap4" for the same node. The
implementation of ti-musb uses a wrapper driver that binds to
ti,am33xx-usb and creates new devices ti-musb-host and
ti-musb-peripheral depending on the dr_mode property.
To avoid this wrapper driver with the upstream devicetree, add
compatibles for "ti,musb-am33xx" to both ti-musb-host and
ti-musb-peripheral. Add a bind function that checks for the correct
dr_mode value and rejects binding if it is not the correct driver.
Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Signed-off-by: Markus Schneider-Pargmann (TI.com) <msp@baylibre.com>
Reviewed-by: Marek Vasut <marek.vasut@mailbox.org>
For the upstream DT the ctrl_mod node is using a relative register
address which is not translated by the current code.
Make address parsing understand relative addresses.
Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Signed-off-by: Markus Schneider-Pargmann (TI.com) <msp@baylibre.com>
Reviewed-by: Marek Vasut <marek.vasut@mailbox.org>
After years of developing the ADI ADSP platform, Timesys was purchased
by another company and is no longer contracted to maintain the platform.
Signed-off-by: Philip Molloy <philip.molloy@analog.com>
Reviewed-by: Greg Malysa <malysagreg@gmail.com>
Remove DECLARE_GLOBAL_DATA_PTR from files where gd is not used, and
drop the unnecessary inclusion of asm/global_data.h.
Headers should be included directly by the files that need them,
rather than indirectly via global_data.h.
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com> #STMicroelectronics boards and STM32MP1 ram test driver
Tested-by: Anshul Dalal <anshuld@ti.com> #TI boards
Acked-by: Yao Zi <me@ziyao.cc> #TH1520
Signed-off-by: Peng Fan <peng.fan@nxp.com>
The cdns3_bind() function is responsible for identifying the appropriate
driver to bind to the USB Controller's device-tree node. If the device-tree
node has the 'dr_mode' property set to 'otg', the existing approach fails
to bind a driver, leading to loss of functionality.
To address this, use the VBUS Valid field of the OTG Status register to
determine the role as follows:
- If VBUS Valid field is set, it indicates that a USB Host is supplying
power and the Controller should assume the Peripheral role.
- If VBUS Valid field is clear, it indicates the absence of a USB Host and
the Controller should assume the Host role.
Additionally, when 'dr_mode' happens to be 'otg' and the STRAP settings
are not specified, use VBUS Valid to determine the role in cdns3_drd_init()
and assign it to cdns->dr_mode.
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Reviewed-by: Marek Vasut <marek.vasut@mailbox.org>
Rockchip RK3288 and RK3506 contain two DWC2 USB controllers, typically
one controller use dr_mode=otg and the other one use dr_mode=host.
With USB_GADGET_DWC2_OTG, DM_USB_GADGET and USB_DWC2 enabled this result
in the dwc2-udc-otg driver binding to both controllers, however only one
will probe due to use of dr_mode=host on the other one.
After the commit 6668b8e7cc ("dm: core: Support multiple drivers with
same compatibles") it is possible to bind one controller to the
dwc2-udc-otg driver and the other one to the dwc2_usb driver.
Move the dr_mode check from of_to_plat() to bind() to allow dm core to
bind the dwc2 host driver to dr_mode=host controllers.
Before this:
=> dm tree
...
usb_gadget 0 [ ] dwc2-udc-otg | |-- usb@ff740000
usb_gadget 1 [ ] dwc2-udc-otg | |-- usb@ff780000
=> usb start
starting USB...
No USB controllers found
After this:
dwc2-udc-otg usb@ff780000: Invalid dr_mode 1
=> dm tree
...
usb_gadget 0 [ ] dwc2-udc-otg | |-- usb@ff740000
usb 0 [ ] dwc2_usb | |-- usb@ff780000
=> usb start
starting USB...
USB DWC2
Bus usb@ff780000: 1 USB Device(s) found
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Reviewed-by: Marek Vasut <marek.vasut@mailbox.org>
Link: https://lore.kernel.org/r/20260129195207.2260264-1-jonas@kwiboo.se
Signed-off-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
According to Synopsys Databook, we shouldn't be
relying on GCTL.CORESOFTRESET bit as that's only for
debugging purposes. Instead, let's use DCTL.CSFTRST
if we're OTG or PERIPHERAL mode.
Host side block will be reset by XHCI driver if
necessary. Note that this reduces amount of time
spent on dwc3_probe() by a long margin.
We're still gonna wait for reset to finish for a
long time (default to 1ms max), but tests show that
the reset polling loop executed at most 19 times
(modprobe dwc3 && modprobe -r dwc3 executed 1000
times in a row).
Note that this patch was submitted to Linux in 2016 [1], however I can
confirm it is needed to support gadget mode in U-Boot on my device.
While I am referencing this patch from Linux I am in fact taking the
full existing dwc3_core_soft_reset() function from Linux as it exists
in v6.19-rc5, so it may differ slightly from the information in the
2016 patch.
[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/patch/drivers/usb/dwc3?id=f59dcab176293b646e1358144c93c58c3cda2813
Suggested-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Link: https://lore.kernel.org/r/20260115230135.183158-5-macroalpha82@gmail.com
Signed-off-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
