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From: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
To: linux-fpga@vger.kernel.org
Cc: atull@kernel.org, mdf@kernel.org, robh+dt@kernel.org,
	michal.simek@xilinx.com, devicetree@vger.kernel.org,
	shubhrajyoti.datta@gmail.com, nofooter@xilinx.com,
	Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Subject: [PATCH 1/2] doc: fpga: Add reset bridge support
Date: Tue, 20 Feb 2018 14:12:50 +0530	[thread overview]
Message-ID: <1519116171-7182-1-git-send-email-shubhrajyoti.datta@xilinx.com> (raw)

Add reset bridge support. Once this bridge is enabled.
The reset line(s) will be toggled. Generally it will be
called after the bitstream load to reset the PL.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
---
 .../devicetree/bindings/fpga/xlnx,rst-bridge.txt   | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/fpga/xlnx,rst-bridge.txt

diff --git a/Documentation/devicetree/bindings/fpga/xlnx,rst-bridge.txt b/Documentation/devicetree/bindings/fpga/xlnx,rst-bridge.txt
new file mode 100644
index 0000000..6f1bfc2
--- /dev/null
+++ b/Documentation/devicetree/bindings/fpga/xlnx,rst-bridge.txt
@@ -0,0 +1,22 @@
+Xilinx fpga reset bridge
+
+The Xilinx reset bridge toggles the reset line to the PL
+in Zynqmp Ultrascale plus.
+
+
+Required properties:
+- compatible   : Should contain "xlnx,rst-bridge"
+- reset                : reset phandles
+
+Optional properties:
+- bridge-enable                : 0 if driver should disable bridge at startup
+                         1 if driver should enable bridge at startup
+                         Default is to leave bridge in current state.
+
+See Documentation/devicetree/bindings/fpga/fpga-region.txt for generic bindings.
+
+Example:
+fpga_rst_bridge: fpga_rst_bridge {
+       compatible = "xlnx,rst-bridge";
+       resets = <&rst 115>;
+};
--
2.1.1

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             reply	other threads:[~2018-02-20  8:36 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-20  8:42 Shubhrajyoti Datta [this message]
2018-02-20  8:42 ` [PATCH 2/2] fpga: reset bridge: Add the reset bridge Shubhrajyoti Datta
  -- strict thread matches above, loose matches on Subject: below --
2018-02-21  4:53 [PATCH 1/2] doc: fpga: Add reset bridge support shubhrajyoti.datta
2018-02-21 17:44 ` Moritz Fischer
2018-02-22  9:47   ` Shubhrajyoti Datta
2018-02-20  8:40 Shubhrajyoti Datta
2018-02-20  8:34 ` Shubhrajyoti Datta

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