u-boot.git/drivers/usb/dwc3/core.h, branch master Unnamed repository; edit this file 'description' to name the repository. usb: dwc3: core: Add ip and version_type support from Linux 2026-01-30T07:59:21+00:00 Chris Morgan macromorgan@hotmail.com 2026-01-15T23:01:32+00:00 add7152eb071619efa150e4b7503f9f333133dbb Add support for the ip and version_type fields from the Linux version of the dwc3 driver. Included in this is support for a few additional macros in the header from Linux as well. Signed-off-by: Chris Morgan <macromorgan@hotmail.com> Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org> Link: https://lore.kernel.org/r/20260115230135.183158-2-macroalpha82@gmail.com Signed-off-by: Mattijs Korpershoek <mkorpershoek@kernel.org> 
Add support for the ip and version_type fields from the Linux
version of the dwc3 driver. Included in this is support for a
few additional macros in the header from Linux as well.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Link: https://lore.kernel.org/r/20260115230135.183158-2-macroalpha82@gmail.com
Signed-off-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
usb: dwc3: allocate setup_buf with dma_alloc_coherent() 2024-10-15T09:03:56+00:00 Neil Armstrong neil.armstrong@linaro.org 2024-10-11T14:38:24+00:00 1f12fc7e3350b179d17efaf5ba00fc3683cf33ec Since setup_buf is also consumed by hardware DMA, aligns it's allocation like other hardware buffers by introduce setup_buf_addr populated by dma_alloc_coherent(), and use it to pass the physical address of the buffer to the hardware. Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> Reviewed-by: Marek Vasut <marex@denx.de> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20241011-u-boot-dwc3-gadget-dcache-fixup-v4-1-5f3498d8035b@linaro.org Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> 
Since setup_buf is also consumed by hardware DMA, aligns it's
allocation like other hardware buffers by introduce setup_buf_addr
populated by dma_alloc_coherent(), and use it to pass the physical
address of the buffer to the hardware.

Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20241011-u-boot-dwc3-gadget-dcache-fixup-v4-1-5f3498d8035b@linaro.org
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
usb: dwc3: gadget: properly check ep cmd 2024-05-16T06:38:24+00:00 Felipe Balbi felipe.balbi@linux.intel.com 2024-04-12T20:26:05+00:00 95b4d655a44626f888bf823a0561a175d456d33a Upstream Linux commit 5999914f227b. The cmd argument we pass to dwc3_send_gadget_ep_cmd() could contain extra arguments embedded. When checking for StartTransfer command, we need to make sure to match only lower 4 bits which contain the actual command and ignore the rest. Reported-by: Janusz Dziedzic <januszx.dziedzic@intel.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> [A. Sverdlin: cherry-picked only DWC3_DEPCMD_CMD() define] Signed-off-by: Alexander Sverdlin <alexander.sverdlin@siemens.com> Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> Link: https://lore.kernel.org/r/20240412202611.3565052-6-alexander.sverdlin@siemens.com Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> 
Upstream Linux commit 5999914f227b.

The cmd argument we pass to
dwc3_send_gadget_ep_cmd() could contain extra
arguments embedded. When checking for StartTransfer
command, we need to make sure to match only lower 4
bits which contain the actual command and ignore the
rest.

Reported-by: Janusz Dziedzic <januszx.dziedzic@intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
[A. Sverdlin: cherry-picked only DWC3_DEPCMD_CMD() define]
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Link: https://lore.kernel.org/r/20240412202611.3565052-6-alexander.sverdlin@siemens.com
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
tree-wide: Replace http:// link with https:// link for ti.com 2023-11-10T16:01:50+00:00 Nishanth Menon nm@ti.com 2023-11-01T20:56:03+00:00 a94a4071d449e12c9fb5ac37d6362d22efcb27da Replace instances of http://www.ti.com with https://www.ti.com Signed-off-by: Nishanth Menon <nm@ti.com> 
Replace instances of http://www.ti.com with https://www.ti.com

Signed-off-by: Nishanth Menon <nm@ti.com>
usb: dwc3: Program GFLADJ 2022-11-27T14:34:56+00:00 Sean Anderson sean.anderson@seco.com 2022-11-27T14:31:55+00:00 c55ac51a550c8d2f8485abe94cb80c15b81d08fa GUCTL.REFCLKPER can only account for clock frequencies with integer periods. To address this, program REFCLK_FLADJ with the relative error caused by period truncation. The formula given in the register reference has been rearranged to allow calculation based on rate (instead of period), and to allow for fixed-point arithmetic. Additionally, calculate a value for 240MHZDECR. This configures a simulated 240Mhz clock using a counter with one fractional bit (PLS1). This register is programmed only for versions >= 2.50a, since this is the check also used by commit db2be4e9e30c ("usb: dwc3: Add frame length adjustment quirk"). [ marek: Ported from Linux kernel commit 596c87856e08d ("usb: dwc3: Program GFLADJ") ] Reviewed-by: Sean Anderson <seanga2@gmail.com> Signed-off-by: Sean Anderson <sean.anderson@seco.com> Signed-off-by: Marek Vasut <marex@denx.de> # Port from Linux 
GUCTL.REFCLKPER can only account for clock frequencies with integer
periods. To address this, program REFCLK_FLADJ with the relative error
caused by period truncation. The formula given in the register reference
has been rearranged to allow calculation based on rate (instead of
period), and to allow for fixed-point arithmetic.

Additionally, calculate a value for 240MHZDECR. This configures a
simulated 240Mhz clock using a counter with one fractional bit (PLS1).

This register is programmed only for versions >= 2.50a, since this is
the check also used by commit db2be4e9e30c ("usb: dwc3: Add frame length
adjustment quirk").

[ marek: Ported from Linux kernel commit
         596c87856e08d ("usb: dwc3: Program GFLADJ") ]

Reviewed-by: Sean Anderson <seanga2@gmail.com>
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Signed-off-by: Marek Vasut <marex@denx.de> # Port from Linux
usb: dwc3: reference clock period configuration 2022-11-27T14:34:56+00:00 Balaji Prakash J bjagadee@codeaurora.org 2022-11-27T14:31:53+00:00 57548e8bc7cb6eb1c1a0206579c2a84737a70650 Set reference clock period when it differs from dwc3 default hardware set. We could calculate clock period based on reference clock frequency. But this information is not always available. This is the case of PCI bus attached USB host. For that reason we use a custom property. Tested (USB2 only) on IPQ6010 SoC based board with 24 MHz reference clock while hardware default is 19.2 MHz. [ baruch: rewrite commit message; drop GFLADJ code; remove 'quirk-' from property name; mention tested hardware ] [ marek: Ported from Linux kernel commit 7bee318838890 ("usb: dwc3: reference clock period configuration") ] Reviewed-by: Sean Anderson <seanga2@gmail.com> Signed-off-by: Balaji Prakash J <bjagadee@codeaurora.org> Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Marek Vasut <marex@denx.de> # Port from Linux 
Set reference clock period when it differs from dwc3 default hardware
set.

We could calculate clock period based on reference clock frequency. But
this information is not always available. This is the case of PCI bus
attached USB host. For that reason we use a custom property.

Tested (USB2 only) on IPQ6010 SoC based board with 24 MHz reference
clock while hardware default is 19.2 MHz.

[ baruch: rewrite commit message; drop GFLADJ code; remove 'quirk-' from
  property name; mention tested hardware ]

[ marek: Ported from Linux kernel commit
         7bee318838890 ("usb: dwc3: reference clock period configuration") ]

Reviewed-by: Sean Anderson <seanga2@gmail.com>
Signed-off-by: Balaji Prakash J <bjagadee@codeaurora.org>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Marek Vasut <marex@denx.de> # Port from Linux
usb: dwc3: Cache ref_clk pointer in struct dwc3 2022-11-27T14:34:56+00:00 Marek Vasut marex@denx.de 2022-11-27T14:31:52+00:00 8ae84e64530e81f23066d86417b9225388ba96ae Cache ref_clk clock pointer in struct dwc3 . This is a preparatory patch for subsequent backports from Linux kernel which configure GFLADJ register content based on the ref_clk rate and therefore need access to the ref_clk pointer. It is possible to extract the clock pointer from existing clk_bulk list of already claimed clock, no need to call clk_get*() again. Reviewed-by: Sean Anderson <seanga2@gmail.com> Signed-off-by: Marek Vasut <marex@denx.de> 
Cache ref_clk clock pointer in struct dwc3 . This is a preparatory
patch for subsequent backports from Linux kernel which configure
GFLADJ register content based on the ref_clk rate and therefore need
access to the ref_clk pointer.

It is possible to extract the clock pointer from existing clk_bulk
list of already claimed clock, no need to call clk_get*() again.

Reviewed-by: Sean Anderson <seanga2@gmail.com>
Signed-off-by: Marek Vasut <marex@denx.de>
usb: dwc3: Enable undefined length INCR burst type 2021-11-09T11:48:23+00:00 Michael Walle michael@walle.cc 2021-10-15T13:15:22+00:00 f150b8d28b4eab267fdd4af4a2d0a41443702cc5 [backport from linux commit d9612c2f0449e24983a8b689603210486a930c90] Enable the undefined length INCR burst type and set INCRx. Different platform may has the different burst size type. In order to get best performance, we need to tune the burst size to one special value, instead of the default value. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com> 
[backport from linux commit d9612c2f0449e24983a8b689603210486a930c90]

Enable the undefined length INCR burst type and set INCRx.
Different platform may has the different burst size type.
In order to get best performance, we need to tune the burst
size to one special value, instead of the default value.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
usb: dwc3: Add frame length adjustment quirk 2021-11-09T11:48:23+00:00 Michael Walle michael@walle.cc 2021-10-15T13:15:21+00:00 d274cbbc1cef8909d47b3f797fef3667bc170620 [backport from linux commit db2be4e9e30c6e43e48c5749d3fc74cee0a6bbb3] Add adjust_frame_length_quirk for writing to fladj register which adjusts (micro)frame length to value provided by "snps,quirk-frame-length-adjustment" property thus avoiding USB 2.0 devices to time-out over a longer run Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com> 
[backport from linux commit db2be4e9e30c6e43e48c5749d3fc74cee0a6bbb3]

Add adjust_frame_length_quirk for writing to fladj register
which adjusts (micro)frame length to value provided by
"snps,quirk-frame-length-adjustment" property thus avoiding
USB 2.0 devices to time-out over a longer run

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
WS cleanup: remove SPACE(s) followed by TAB 2021-09-30T13:08:16+00:00 Wolfgang Denk wd@denx.de 2021-09-27T15:42:39+00:00 0cf207ec01cbacae47585fcc26591dd2296507d6 Signed-off-by: Wolfgang Denk <wd@denx.de> 
Signed-off-by: Wolfgang Denk <wd@denx.de>