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Commit 161db575 authored by Moritz Fischer's avatar Moritz Fischer Committed by Greg Kroah-Hartman
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fpga: region: Add fpga-region property 'encrypted-fpga-config' 



Add fpga-region property to allow passing the fact that the bitstream is
encrypted to the fpga-region and ultimately to the low-level driver.

Signed-off-by: default avatarMoritz Fischer <mdf@kernel.org>
Acked-by: default avatarMichal Simek <michal.simek@xilinx.com>
Signed-off-by: default avatarAlan Tull <atull@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 7f33bbca

Documentation/devicetree/bindings/fpga/fpga-region.txt

+1 −0
Original line number Diff line number Diff line
@@ -186,6 +186,7 @@ Optional properties: 
	otherwise full reconfiguration is done.

- external-fpga-config : boolean, set if the FPGA has already been configured

	prior to OS boot up.

- encrypted-fpga-config : boolean, set if the bitstream is encrypted

- region-unfreeze-timeout-us : The maximum time in microseconds to wait for

	bridges to successfully become enabled after the region has been

	programmed.

drivers/fpga/fpga-region.c

+6 −2
Original line number Diff line number Diff line
@@ -339,6 +339,7 @@ static int child_regions_with_firmware(struct device_node *overlay) 
 *

 *   firmware-name         : program the FPGA

 *   external-fpga-config  : FPGA is already programmed

 *   encrypted-fpga-config : FPGA bitstream is encrypted

 *

 * The overlay can add other FPGA regions, but child FPGA regions cannot have a

 * firmware-name property since those regions don't exist yet.
@@ -373,6 +374,9 @@ static int fpga_region_notify_pre_apply(struct fpga_region *region, 
	if (of_property_read_bool(nd->overlay, "external-fpga-config"))

		info->flags |= FPGA_MGR_EXTERNAL_CONFIG;



	if (of_property_read_bool(nd->overlay, "encrypted-fpga-config"))

		info->flags |= FPGA_MGR_ENCRYPTED_BITSTREAM;



	of_property_read_string(nd->overlay, "firmware-name", &firmware_name);



	of_property_read_u32(nd->overlay, "region-unfreeze-timeout-us",