Partial Reconfiguration (pr) FPGA command is added to U-Boot console. The "fpga pr" command supports multiple regions for partial reconfiguration by specifying the region number. The implementation of the command is specific to the underlying FPGA device.
In case of Altera, it is used to freeze the specified partial reconfiguration region, then user loading the reconfiguration image followed by unfreezing of the region. Test set currently can't be added as the command is implementation specific. It involves opening of FPGA bridges and loading of external images during run time. Currently, existing FPGA commands don't have any tests/sandbox environment. The design is being worked on, but would take some more time to share and get the community feedback. Changes in v2: - Change the command implementation to generic FPGA command - Add usage documentation for the command - Correct "_" with "-" in alias name in Altera dts files - Add FPGA partial reconfiguration support for Altera devices - Address minor comments in v1 Naresh Kumar Ravulapalli (5): drivers: fpga: Add generic partial reconfiguration support cmd: Add partial reconfiguration command doc: usage: cmd: Add documentation for fpga pr command arch: arm: dts: Correct alias name for Altera SoCs drivers: fpga: Add partial reconfig support for Altera SoCs .../arm/dts/socfpga_agilex5_socdk-u-boot.dtsi | 2 +- arch/arm/dts/socfpga_agilex_socdk-u-boot.dtsi | 3 +- .../dts/socfpga_stratix10_socdk-u-boot.dtsi | 3 +- cmd/Kconfig | 8 + cmd/fpga.c | 38 ++++ doc/usage/cmd/fpga.rst | 65 +++++++ drivers/fpga/Kconfig | 7 + drivers/fpga/altera.c | 163 ++++++++++++++++++ drivers/fpga/fpga.c | 37 ++++ include/altera.h | 7 + include/fpga.h | 3 + 11 files changed, 333 insertions(+), 3 deletions(-) create mode 100644 doc/usage/cmd/fpga.rst -- 2.35.3
