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The value in the version register of the altera freeze bridge
controller changed from the beta value of 2 to the
value of 0xad000003 in the official release of the IP.
This patch supports the old and new version numbers, and the
driver's probe function will fail if neither of the supported
versions is found.
Signed-off-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
Reviewed-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Alan Tull <atull@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The ops are not changing, make them const.
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Cc: Alan Tull <atull@kernel.org>
Cc: linux-kernel@vger.kernel.org
Cc: linux-fpga@vger.kernel.org
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add a low level driver for Altera Freeze Bridges to the FPGA Bridge
framework. A freeze bridge is a bridge that exists in the FPGA
fabric to isolate one region of the FPGA from the busses while that
one region is being reprogrammed.
Signed-off-by: Alan Tull <atull@opensource.altera.com>
Signed-off-by: Matthew Gerlach <mgerlach@opensource.altera.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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