[PATCH v4 0/7] Add DFU and usb boot for TI am62x SK and beagleplay

[Sjoerd Simons]

This series adds DFU support for TI AM62 SK board and new since this
version also for beagleplay.

Since the last revision, apart from beagleplay support the main changes
are:
* Documentation was added on how to use this functionality on both boards
* the R5 configuration is now done via a config fragment rather
  then a full configuraiton
* A new patch was added for dwc3 to work in device mode even if dr_mode is
  configured as otg. Avoiding the need for an explicit switch to
  periphal in the u-boot dts

I will also submit the dts changes to linux so that those can be dropped
again in the near future (hopefully)

Changes in v4:
- Add config dependency on SYSCON
- Move defines and constants outside out of function scope
- Don't force usb0 into peripheral mode
- Move R5 dfu config to a config fragment rather then a full defconfig
- Don't enable XHCI for the R5 SPL, unneeded

Change in v3:
- Add dfu via environment rather then config headers
- Enable usb nodes in all boot phases
- Run savedefconfig to adjust to more recent u-boot

Changes in v2:
- Switch dwc3 glue to a seperate driver rather then in dwc-generic
- Minimize config changes to just DFU configuration
- Only enable usb port 0 DFU in SPL
- Create a seperate defconfig for R5

Sjoerd Simons (7):
  usb: dwc3: Add dwc3 glue driver for am62
  usb: dwc3: Switch to device mode on gadget start
  board: ti: am62x: am62x: include env for DFU
  arm: dts: k3-am625-sk: Enable usb port in u-boot
  configs: am62x_evm_*: Enable USB and DFU support
  beagleplay: Add DFU support
  doc: board: Add document for DFU boot on am62x SoCs

 arch/arm/dts/k3-am625-beagleplay-u-boot.dtsi |   8 ++
 arch/arm/dts/k3-am625-sk-u-boot.dtsi         |   8 ++
 board/beagle/beagleplay/beagleplay.env       |   1 +
 board/ti/am62x/am62x.env                     |   1 +
 configs/am62x_beagleplay_a53_defconfig       |  30 +++++
 configs/am62x_evm_a53_defconfig              |  30 +++++
 configs/am62x_r5_usbdfu.config               |  28 +++++
 doc/board/beagle/am62x_beagleplay.rst        |  12 ++
 doc/board/ti/am62x_sk.rst                    |  37 ++++++
 drivers/usb/dwc3/Kconfig                     |  14 +++
 drivers/usb/dwc3/Makefile                    |   1 +
 drivers/usb/dwc3/core.c                      |  10 +-
 drivers/usb/dwc3/core.h                      |   1 +
 drivers/usb/dwc3/dwc3-am62.c                 | 125 +++++++++++++++++++
 drivers/usb/dwc3/gadget.c                    |   6 +
 15 files changed, 307 insertions(+), 5 deletions(-)
 create mode 100644 configs/am62x_r5_usbdfu.config
 create mode 100644 drivers/usb/dwc3/dwc3-am62.c

-- 
2.43.0