[PATCH 0/2 v8] Lattice MachXO2 Slave SPI FPGA Manager support

[Paolo Pisati]

Hi all,
this series adds support for the Lattice MachXO2 FPGA chip, programmed
over Slave SPI.

Tested on a raspberry pi3, beaglebone black (little endian mode) and imx6
hummingboard (big endian mode) + bugblat's pif2 fpga hat (machxo2 7000HC) or
tinyfpga A1/A2 (machxo2 256HC / 1200HC), in SPI slave mode with varying bus
speed.

Changes since v7:
* misc style fixes, among which:
  * static const u8 cmd[]
  * #ifdef DEBUG ... #endif reorder
  * introduction of get_err_string()
  * direct returns to reduce line count
  * indentation


Paolo Pisati (2):
  dt: bindings: fpga: add lattice machxo2 slave spi binding description
  fpga: lattice machxo2: Add Lattice MachXO2 support

 .../bindings/fpga/lattice-machxo2-spi.txt          |  29 ++
 drivers/fpga/Kconfig                               |   8 +
 drivers/fpga/Makefile                              |   1 +
 drivers/fpga/machxo2-spi.c                         | 388 +++++++++++++++++++++
 4 files changed, 426 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/fpga/lattice-machxo2-spi.txt
 create mode 100644 drivers/fpga/machxo2-spi.c

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2.7.4