From d549ac081c41d1925804bf73393aca8e3978b582 Mon Sep 17 00:00:00 2001 From: Paolo Pisati Date: Mon, 16 Apr 2018 20:43:35 -0700 Subject: dt: bindings: fpga: add lattice machxo2 slave spi binding description Add dt binding documentation details for Lattice MachXO2 FPGA configuration over Slave SPI interface. Signed-off-by: Paolo Pisati Acked-by: Rob Herring Acked-by: Alan Tull Signed-off-by: Moritz Fischer Signed-off-by: Greg Kroah-Hartman --- .../bindings/fpga/lattice-machxo2-spi.txt | 29 ++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 Documentation/devicetree/bindings/fpga/lattice-machxo2-spi.txt (limited to 'Documentation/devicetree') 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 000000000000..a8c362eb160c --- /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 = <8000000>; + reg = <0>; + }; + }; -- cgit v1.2.3 From 3905c11c1c71a9b841e1e7e601eea0d3d55026bf Mon Sep 17 00:00:00 2001 From: Andrey Smirnov Date: Fri, 11 May 2018 12:06:57 +0100 Subject: dt-bindings: nvmem: Add binding for RAVE SP EEPROM driver Add Device Tree bindings for RAVE SP EEPROM driver - an MFD cell of parent RAVE SP driver (documented in Documentation/devicetree/bindings/mfd/zii,rave-sp.txt). Cc: Srinivas Kandagatla Cc: linux-kernel@vger.kernel.org Cc: Chris Healy Cc: Lucas Stach Cc: Aleksander Morgado Cc: Rob Herring Cc: Mark Rutland Cc: devicetree@vger.kernel.org Signed-off-by: Andrey Smirnov Reviewed-by: Rob Herring Signed-off-by: Srinivas Kandagatla Signed-off-by: Greg Kroah-Hartman --- .../bindings/nvmem/zii,rave-sp-eeprom.txt | 40 ++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 Documentation/devicetree/bindings/nvmem/zii,rave-sp-eeprom.txt (limited to 'Documentation/devicetree') diff --git a/Documentation/devicetree/bindings/nvmem/zii,rave-sp-eeprom.txt b/Documentation/devicetree/bindings/nvmem/zii,rave-sp-eeprom.txt new file mode 100644 index 000000000000..d5e22fc67d66 --- /dev/null +++ b/Documentation/devicetree/bindings/nvmem/zii,rave-sp-eeprom.txt @@ -0,0 +1,40 @@ +Zodiac Inflight Innovations RAVE EEPROM Bindings + +RAVE SP EEPROM device is a "MFD cell" device exposing physical EEPROM +attached to RAVE Supervisory Processor. It is expected that its Device +Tree node is specified as a child of the node corresponding to the +parent RAVE SP device (as documented in +Documentation/devicetree/bindings/mfd/zii,rave-sp.txt) + +Required properties: + +- compatible: Should be "zii,rave-sp-eeprom" + +Optional properties: + +- zii,eeprom-name: Unique EEPROM identifier describing its function in the + system. Will be used as created NVMEM deivce's name. + +Data cells: + +Data cells are child nodes of eerpom node, bindings for which are +documented in Documentation/bindings/nvmem/nvmem.txt + +Example: + + rave-sp { + compatible = "zii,rave-sp-rdu1"; + current-speed = <38400>; + + eeprom@a4 { + compatible = "zii,rave-sp-eeprom"; + reg = <0xa4 0x4000>; + #address-cells = <1>; + #size-cells = <1>; + zii,eeprom-name = "main-eeprom"; + + wdt_timeout: wdt-timeout@81 { + reg = <0x81 2>; + }; + }; + } -- cgit v1.2.3