Add support to the FPGA manager for programming Lattice ECP5 FPGA over
slave SPI interface with .bit formatted uncompressed bitstream image.

ChangeLog:
  v1 -> v2:
    * remove "spi" from compatible string
    * reword description in dt-bindings doc
    * add reference to spi-peripheral-props.yaml in dt-binding doc
    * fix DTS example in dt-bindings doc: 4-spaces indentations, no
      undersores in node names.

Ivan Bornyakov (2):
  fpga: ecp5-spi: add Lattice ECP5 FPGA manager
  dt-bindings: fpga: add binding doc for ecp5-spi fpga mgr

 .../bindings/fpga/lattice,ecp5-fpga-mgr.yaml  |  73 +++++
 drivers/fpga/Kconfig                          |   7 +
 drivers/fpga/Makefile                         |   1 +
 drivers/fpga/ecp5-spi.c                       | 275 ++++++++++++++++++
 4 files changed, 356 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/fpga/lattice,ecp5-fpga-mgr.yaml
 create mode 100644 drivers/fpga/ecp5-spi.c

-- 
2.37.1