[PATCH v4] spl: Add support for Device Firmware Upgrade (DFU) over PCIe

[Mattijs Korpershoek]

Hi,

On Thu, 23 Oct 2025 13:39:22 +0530, Hrushikesh Salunke wrote:
> Introduces support for Device Firmware Upgrade (DFU) over PCIe in
> U-Boot. Traditionally, the DFU protocol is used over USB, where a
> device enters DFU mode and allows a host to upload firmware or binary
> images directly via the USB interface. This is a widely adopted and
> convenient method for updating firmware.
> 
> In the context of Texas Instruments (TI) SoCs, PCIe can be used as a
> boot interface in a manner that differs from the conventional
> "PCIe Boot" process, which typically refers to booting an OS or
> firmware image from an NVMe SSD or other PCIe-attached storage devices.
> Instead, TI SoCs can be configured as a PCIe Endpoint, allowing a
> connected PCIe Root Complex (host) to transfer images directly into the
> device’s memory over the PCIe bus for boot purposes. This mechanism is
> analogous to DFU over USB, but leverages the high-speed PCIe link and
> does not depend on traditional storage devices.
> 
> [...]

Thanks, Applied to https://source.denx.de/u-boot/custodians/u-boot-dfu (u-boot-dfu)

[1/1] spl: Add support for Device Firmware Upgrade (DFU) over PCIe
      https://source.denx.de/u-boot/custodians/u-boot-dfu/-/commit/cde77583cf0b54dd572a38acd159ded7dd5e3e86

--
Mattijs