linux/drivers/fpga
Alan Tull e5f8efa5c8 ARM: socfpga: fpga bridge driver support
Supports Altera SOCFPGA bridges:
 * fpga2sdram
 * fpga2hps
 * hps2fpga
 * lwhps2fpga

Allows enabling/disabling the bridges through the FPGA
Bridge Framework API functions.

The fpga2sdram driver only supports enabling and disabling
of the ports that been configured early on.  This is due to
a hardware limitation where the read, write, and command
ports on the fpga2sdram bridge can only be reconfigured
while there are no transactions to the sdram, i.e. when
running out of OCRAM before the kernel boots.

Device tree property 'init-val' configures the driver to
enable or disable the bridge during probe.  If the property
does not exist, the driver will leave the bridge in its
current state.

Signed-off-by: Alan Tull <atull@opensource.altera.com>
Signed-off-by: Matthew Gerlach <mgerlach@altera.com>
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-11-10 17:03:36 +01:00
..
altera-fpga2sdram.c ARM: socfpga: fpga bridge driver support 2016-11-10 17:03:36 +01:00
altera-hps2fpga.c ARM: socfpga: fpga bridge driver support 2016-11-10 17:03:36 +01:00
fpga-bridge.c fpga: add fpga bridge framework 2016-11-10 17:03:35 +01:00
fpga-mgr.c fpga-mgr: add fpga image information struct 2016-11-10 17:03:35 +01:00
fpga-region.c fpga: fpga-region: device tree control for FPGA 2016-11-10 17:03:35 +01:00
Kconfig ARM: socfpga: fpga bridge driver support 2016-11-10 17:03:36 +01:00
Makefile ARM: socfpga: fpga bridge driver support 2016-11-10 17:03:36 +01:00
socfpga.c fpga-mgr: add fpga image information struct 2016-11-10 17:03:35 +01:00
zynq-fpga.c fpga-mgr: add fpga image information struct 2016-11-10 17:03:35 +01:00