fpga: Add support for Xilinx DFX AXI Shutdown manager

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This patch adds support for Xilinx Dynamic Function eXchange(DFX) AXI
shutdown manager IP. It can be used to safely handling the AXI traffic
on a Reconfigurable Partition when it is undergoing dynamic reconfiguration
and there by preventing system deadlock that may occur if AXI transactions
are interrupted during reconfiguration.

PR-Decoupler and AXI shutdown manager are completely different IPs.
But both the IP registers are compatible and also both belong to the
same sub-system (fpga-bridge).So using same driver for both IP's.

Signed-off-by: Nava kishore Manne <nava.manne@xilinx.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Nava kishore Manne 2021-02-11 10:41:48 +05:30 • committed by Greg Kroah-Hartman

parent 8058182fa4

commit 30a2ac9a8b

2 changed files with 40 additions and 6 deletions

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9

drivers/fpga/Kconfig

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37

drivers/fpga/xilinx-pr-decoupler.c

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