On Mon, Sep 26, 2022 at 05:39:22PM +0300, Ivan Bornyakov wrote: > Add support to the FPGA manager for programming Lattice ECP5 FPGA over > slave SPI sysCONFIG interface. > > 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. > v2 -> v3: > * fix typo "##size-cells" -> "#size-cells" in dt-bindings example > v3 -> v4: > * dt-bindings: reword description > * dt-bindings: revert props order > v4 -> v5: > * dt-bindings: remove trailing dot from title > * dt-bindings: reword description to avoid driver reference > * dt-bindings: add "Reviewed-by: Krzysztof Kozlowski" tag > v5 -> v6: > * ecp5-spi: lock SPI bus for exclusive usage in > ecp5_ops_write_init(), release in ecp5_ops_write_complete() > or on error > v6 -> v7: > * ecp5-spi.c -> lattice-sysconfig-spi.c. Reworked to represent > generalized sysCONFIG port with implementations for ECP5 and > MachXO2 > * lattice,ecp5-fpga-mgr.yaml -> lattice,sysconfig.yaml. Reworked to > document both ECP5 and MachXO2 sysCONFIG. > * dt-bindings: remove "Reviewed-by: Krzysztof Kozlowski" tag as doc > was rewritten by a considerable amount. > v7 -> v8: > * dt-bindings: move "program-gpios", "init-gpios" and "done-gpios" > to top-level properties and disallow them for MachXO2 variant. > v8 -> v9: > * dt-bindings: "program-gpios", "init-gpios" and "done-gpios" are > now optional for both ECP5 and MachXO2 > * lattice-sysconfig-spi.c -> sysconfig-spi.c + sysconfig.c + > sysconfig.h > ** reworked to be one sysCONFIG FPGA Manager rather than two > distinct ECP5 and MachXO2 managers > ** splitted to port type agnostic sysconfig.c and SPI-specific > sysconfig-spi.c > ** command transfer function moved to callback for ease of > adding another port type, such as I2C > v9 -> v10: > * split sysconfig_transfer() callback into separate command_write() > and command_write_then_read(). There are too many transfers > without readback. > * add command_write_with_data() callback which performs single > transfer of command + data. It's needed for better abstraction of > paged bitstream write routine. > * move sysconfig_lsc_burst_init() to bitstream_burst_write_init() > callback to break dependence of sysconfig.c from sysconfig-spi.c > * move sysconfig_lsc_burst_complete() to bitstream_burst_write_complete() > callback to break dependence of sysconfig.c from sysconfig-spi.c > * add bitstream_burst_write() to abstract fpga_manager_ops->write() > from bus type > * remove struct spi_device from struct sysconfig_priv, use > to_spi_device() > * move fpga_manager_ops initialization to sysconfig.c > v10 -> v11: > * rename sysconfig_lsc_burst_init() to sysconfig_spi_lsc_burst_init() > * rename sysconfig_bitstream_burst_write() to > sysconfig_spi_bitstream_burst_write() > * rename sysconfig_lsc_burst_complete() to > sysconfig_spi_lsc_burst_complete() > * rename "ecp5-fpga-mgr" to "sysconfig-ecp5" > * rename "machxo2-fpga-mgr" to "sysconfig-machxo2" > * move spi_max_speed_hz from struct sysconfig_fpga_priv to > struct sysconfig_spi_fpga_priv, which is local to sysconfig-spi.c > * remove SPI bus unlock on write error form > sysconfig_spi_bitstream_burst_write(), call > sysconfig_burst_write_complete() on error in > sysconfig_bitstream_burst_write() instead. > v11 -> v12: > * build sysconfig core as separate module to prevent duplication of > common code segments across different binaries > * rename sysconfig.c to lattice-sysconfig.c > * rename sysconfig.h to lattice-sysconfig.h > * rename sysconfig-spi.c to lattice-sysconfig-spi.c > * rename sysconfig_spi_cmd_write_then_read() to > sysconfig_spi_cmd_read() > * rename command_write_then_read() callback to command_read() > * rename sysconfig_cmd_write_then_read() to sysconfig_cmd_read() > * rename sysconfig_spi_lsc_burst_init() to > sysconfig_spi_bitstream_burst_init() > * rename sysconfig_spi_lsc_burst_complete() to > sysconfig_spi_bitstream_burst_complete() > * remove excessive !spi check from sysconfig_spi_cmd_write(), > sysconfig_spi_cmd_read(), sysconfig_spi_bitstream_burst_init(), > sysconfig_spi_bitstream_burst_write() and > sysconfig_spi_bitstream_burst_complete() > * drop MachXO2 support > ** drop struct sysconfig_fpga_priv > ** drop paged write > ** drop command_write_with_data() and friends > ** drop ISC_PROGRAM_DONE routine > ** drop refresh from sysconfig_isc_finish() > ** sysconfig_isc_erase() only erase SRAM > ** drop MachXO2 mentions from DT bindings doc > v12 -> v13: > * use device_get_match_data() instead of of_device_get_match_data() > and drop of_device.h inclusion > * in polling routines use time_before(jiffies, timeout) instead of > retries count > * add usleep_range() to gpio polling routine > * check fail status of command in more pronounced way > * check definition of sysconfig_priv callbacks at probe > * (BIT(23) | BIT(24) | BIT(25)) -> GENMASK(25, 23) > > Ivan Bornyakov (2): > fpga: lattice-sysconfig-spi: add Lattice sysCONFIG FPGA manager > dt-bindings: fpga: document Lattice sysCONFIG FPGA manager > > .../bindings/fpga/lattice,sysconfig.yaml | 81 ++++ > drivers/fpga/Kconfig | 11 + > drivers/fpga/Makefile | 2 + > drivers/fpga/lattice-sysconfig-spi.c | 151 ++++++ > drivers/fpga/lattice-sysconfig.c | 428 ++++++++++++++++++ > drivers/fpga/lattice-sysconfig.h | 41 ++ > 6 files changed, 714 insertions(+) > create mode 100644 Documentation/devicetree/bindings/fpga/lattice,sysconfig.yaml > create mode 100644 drivers/fpga/lattice-sysconfig-spi.c > create mode 100644 drivers/fpga/lattice-sysconfig.c > create mode 100644 drivers/fpga/lattice-sysconfig.h > > -- > 2.37.3 > Friendly ping.
