Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752257AbdGFKBl (ORCPT ); Thu, 6 Jul 2017 06:01:41 -0400 Received: from mail-wr0-f193.google.com ([209.85.128.193]:36775 "EHLO mail-wr0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751011AbdGFKBO (ORCPT ); Thu, 6 Jul 2017 06:01:14 -0400 From: Paolo Pisati To: Alan Tull , Moritz Fischer Cc: Rob Herring , Mark Rutland , linux-fpga@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/2] dt: bindings: fpga: add lattice machxo2 slave spi binding description Date: Thu, 6 Jul 2017 12:01:09 +0200 Message-Id: <1499335270-6512-2-git-send-email-p.pisati@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1499335270-6512-1-git-send-email-p.pisati@gmail.com> References: <1499335270-6512-1-git-send-email-p.pisati@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1376 Lines: 47 Add dt binding documentation details for Lattice MachXO2 FPGA configuration over Slave SPI interface. Signed-off-by: Paolo Pisati Acked-by: Rob Herring --- .../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