u-boot.git/drivers/usb/cdns3/drd.c, branch master Unnamed repository; edit this file 'description' to name the repository. Revert "usb: cdns3: use VBUS Valid to determine role for dr_mode OTG" 2026-04-03T23:50:16+00:00 Prasanth Babu Mantena p-mantena@ti.com 2026-03-12T13:32:47+00:00 214aababe07de0598bd26ecb0c8fb2e2843ff7d5 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 bfb530e06ca6c19f66c079601e568c761a001993. Signed-off-by: Prasanth Babu Mantena <p-mantena@ti.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 bfb530e06ca6c19f66c079601e568c761a001993.

Signed-off-by: Prasanth Babu Mantena <p-mantena@ti.com>
usb: cdns3: use VBUS Valid to determine role for dr_mode OTG 2026-02-16T14:08:43+00:00 Siddharth Vadapalli s-vadapalli@ti.com 2026-02-16T04:34:58+00:00 bfb530e06ca6c19f66c079601e568c761a001993 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> 
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>
usb: cdns3: Set USB PHY mode in cdns3_drd_update_mode() 2025-03-17T00:55:18+00:00 Minda Chen minda.chen@starfivetech.com 2025-03-06T06:20:25+00:00 d8e39459359991833635458614f4c4b3ae6e5010 USB PHY maybe need to set PHY mode in different USB dr mode. So translate USB PHY mode to generic PHY mode and call generic_phy_set_mode(). Signed-off-by: Minda Chen <minda.chen@starfivetech.com> Reviewed-by: Marek Vasut <marex@denx.de> 
USB PHY maybe need to set PHY mode in different USB
dr mode. So translate USB PHY mode to generic PHY mode
and call generic_phy_set_mode().

Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
Reviewed-by: Marek Vasut <marex@denx.de>
dm: core: Create a new header file for 'compat' features 2020-02-06T02:33:46+00:00 Simon Glass sjg@chromium.org 2020-02-03T14:36:16+00:00 336d4615f8fa774557d14f9b3245daa9e5fe3dbc At present dm/device.h includes the linux-compatible features. This requires including linux/compat.h which in turn includes a lot of headers. One of these is malloc.h which we thus end up including in every file in U-Boot. Apart from the inefficiency of this, it is problematic for sandbox which needs to use the system malloc() in some files. Move the compatibility features into a separate header file. Signed-off-by: Simon Glass <sjg@chromium.org> 
At present dm/device.h includes the linux-compatible features. This
requires including linux/compat.h which in turn includes a lot of headers.
One of these is malloc.h which we thus end up including in every file in
U-Boot. Apart from the inefficiency of this, it is problematic for sandbox
which needs to use the system malloc() in some files.

Move the compatibility features into a separate header file.

Signed-off-by: Simon Glass <sjg@chromium.org>
usb: Add Cadence USB3 host and gadget driver 2019-11-06T23:24:59+00:00 Vignesh Raghavendra vigneshr@ti.com 2019-10-01T11:56:33+00:00 7e91f6ccdc84fe5952e5c26769e65d12e5fc4733 Add support for USB3 host and gadget driver. This is a direct sync of Linux kernel Cadence USB stack that from v5.4-rc1 release. Driver has been modified so that it compiles without errors against U-Boot code base. Features not required for U-Boot such as scatter-gather DMA and OTG interrupt handling has been dropped. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> [jjhiblot@ti.com: Add PHY support] Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> 
Add support for USB3 host and gadget driver. This is a direct sync of
Linux kernel Cadence USB stack that from v5.4-rc1 release.
Driver has been modified so that it compiles without errors against
U-Boot code base.
Features not required for U-Boot such as scatter-gather DMA and OTG
interrupt handling has been dropped.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
[jjhiblot@ti.com: Add PHY support]
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>