u-boot.git/drivers/usb/cdns3/drd.c, branch next Unnamed repository; edit this file 'description' to name the repository. 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>