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From: Paolo Pisati <p.pisati@gmail.com>
To: Alan Tull <atull@opensource.altera.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Moritz Fischer <moritz.fischer@ettus.com>
Cc: devicetree@vger.kernel.org, linux-fpga@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v2 1/2] dt: bindings: fpga: add lattice machxo2 slave spi binding description
Date: Mon,  1 May 2017 15:15:11 +0200	[thread overview]
Message-ID: <1493644512-14776-2-git-send-email-p.pisati@gmail.com> (raw)
In-Reply-To: <1493644512-14776-1-git-send-email-p.pisati@gmail.com>

Add dt binding documentation details for Lattice MachXO2 FPGA configuration
over Slave SPI interface.

Signed-off-by: Paolo Pisati <p.pisati@gmail.com>
---
 .../bindings/fpga/lattice-machxo2-spi.txt          | 29 ++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/fpga/lattice-machxo2-spi.txt

diff --git a/Documentation/devicetree/bindings/fpga/lattice-machxo2-spi.txt b/Documentation/devicetree/bindings/fpga/lattice-machxo2-spi.txt
new file mode 100644
index 0000000..c3ef26bd
--- /dev/null
+++ b/Documentation/devicetree/bindings/fpga/lattice-machxo2-spi.txt
@@ -0,0 +1,29 @@
+Lattice MachXO2 Slave SPI FPGA Manager
+
+Lattice MachXO2 FPGAs support a method of loading the bitstream over
+'slave SPI' interface.
+
+See 'MachXO2ProgrammingandConfigurationUsageGuide.pdf' on www.latticesemi.com
+
+Required properties:
+- compatible: should contain "lattice,machxo2-slave-spi"
+- reg: spi chip select of the FPGA
+
+Example for full FPGA configuration:
+
+	fpga-region0 {
+		compatible = "fpga-region";
+		fpga-mgr = <&fpga_mgr_spi>;
+		#address-cells = <0x1>;
+		#size-cells = <0x1>;
+	};
+
+	spi1: spi@2000 {
+        ...
+
+		fpga_mgr_spi: fpga-mgr@0 {
+			compatible = "lattice,machxo2-slave-spi";
+			spi-max-frequency = <60000000>;
+			reg = <0>;
+		};
+	};
-- 
2.7.4

  reply	other threads:[~2017-05-01 13:15 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-01 13:15 [PATCH v2 0/2] Lattice MachXO2 Slave SPI FPGA Manager support Paolo Pisati
2017-05-01 13:15 ` Paolo Pisati [this message]
2017-05-05 20:25   ` [PATCH v2 1/2] dt: bindings: fpga: add lattice machxo2 slave spi binding description Rob Herring
2017-05-01 13:15 ` [PATCH v2 2/2] fpga: lattice machxo2: Add Lattice MachXO2 support Paolo Pisati
2017-05-01 17:59   ` Moritz Fischer

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