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authorAlan Tull <atull@opensource.altera.com>2016-11-01 14:14:28 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-11-10 17:03:35 +0100
commit21aeda950c5f84a8351b862816d832120b217a9b (patch)
tree265b6231d1f8cde927c3de7f674e85c34b4527a2 /drivers/fpga/Kconfig
parent12e2508213acac638cd05b647237fde19eb132aa (diff)
downloadlinux-21aeda950c5f84a8351b862816d832120b217a9b.tar.bz2
fpga: add fpga bridge framework
This framework adds API functions for enabling/ disabling FPGA bridges under kernel control. This allows the Linux kernel to disable FPGA bridges during FPGA reprogramming and to enable FPGA bridges when FPGA reprogramming is done. This framework is be manufacturer-agnostic, allowing it to be used in interfaces that use the FPGA Manager Framework to reprogram FPGA's. The functions are: * of_fpga_bridge_get * fpga_bridge_put Get/put an exclusive reference to a FPGA bridge. * fpga_bridge_enable * fpga_bridge_disable Enable/Disable traffic through a bridge. * fpga_bridge_register * fpga_bridge_unregister Register/unregister a device-specific low level FPGA Bridge driver. Get an exclusive reference to a bridge and add it to a list: * fpga_bridge_get_to_list To enable/disable/put a set of bridges that are on a list: * fpga_bridges_enable * fpga_bridges_disable * fpga_bridges_put Signed-off-by: Alan Tull <atull@opensource.altera.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/fpga/Kconfig')
-rw-r--r--drivers/fpga/Kconfig7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/fpga/Kconfig b/drivers/fpga/Kconfig
index cd84934774cc..9b20f45c85bf 100644
--- a/drivers/fpga/Kconfig
+++ b/drivers/fpga/Kconfig
@@ -26,6 +26,13 @@ config FPGA_MGR_ZYNQ_FPGA
help
FPGA manager driver support for Xilinx Zynq FPGAs.
+config FPGA_BRIDGE
+ tristate "FPGA Bridge Framework"
+ depends on OF
+ help
+ Say Y here if you want to support bridges connected between host
+ processors and FPGAs or between FPGAs.
+
endif # FPGA
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