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/Documentation/devicetree/bindings/spi/
Dspi-gpio.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/spi/spi-gpio.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: SPI-GPIO devicetree bindings
10 - Rob Herring <robh@kernel.org>
13 This represents a group of 3-n GPIO lines used for bit-banged SPI on
17 - $ref: "/schemas/spi/spi-controller.yaml#"
21 const: spi-gpio
23 sck-gpios:
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Dspi-fsl-dspi.txt4 - compatible : "fsl,vf610-dspi", "fsl,ls1021a-v1.0-dspi",
5 "fsl,ls2085a-dspi"
7 "fsl,ls2080a-dspi" followed by "fsl,ls2085a-dspi"
8 "fsl,ls1012a-dspi" followed by "fsl,ls1021a-v1.0-dspi"
9 "fsl,ls1088a-dspi" followed by "fsl,ls1021a-v1.0-dspi"
10 - reg : Offset and length of the register set for the device
11 - interrupts : Should contain SPI controller interrupt
12 - clocks: from common clock binding: handle to dspi clock.
13 - clock-names: from common clock binding: Shall be "dspi".
14 - pinctrl-0: pin control group to be used for this controller.
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Dfsl-spi.txt4 - cell-index : QE SPI subblock index.
7 - compatible : should be "fsl,spi" or "aeroflexgaisler,spictrl".
8 - mode : the SPI operation mode, it can be "cpu" or "cpu-qe".
9 - reg : Offset and length of the register set for the device
10 - interrupts : <a b> where a is the interrupt number and b is a
15 - clock-frequency : input clock frequency to non FSL_SOC cores
18 - gpios : specifies the gpio pins to be used for chipselects.
21 - fsl,spisel_boot : for the MPC8306 and MPC8309, specifies that the
28 cell-index = <0>;
32 interrupt-parent = <700>;
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Dsnps,dw-apb-ssi.txt4 - compatible : "snps,dw-apb-ssi" or "mscc,<soc>-spi", where soc is "ocelot" or
5 "jaguar2", or "amazon,alpine-dw-apb-ssi"
6 - reg : The register base for the controller. For "mscc,<soc>-spi", a second
8 - interrupts : One interrupt, used by the controller.
9 - #address-cells : <1>, as required by generic SPI binding.
10 - #size-cells : <0>, also as required by generic SPI binding.
11 - clocks : phandles for the clocks, see the description of clock-names below.
13 is optional. If a single clock is specified but no clock-name, it is the
17 - clock-names : Contains the names of the clocks:
20 - cs-gpios : Specifies the gpio pins to be used for chipselects.
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Dfsl-imx-cspi.txt5 - compatible :
6 - "fsl,imx1-cspi" for SPI compatible with the one integrated on i.MX1
7 - "fsl,imx21-cspi" for SPI compatible with the one integrated on i.MX21
8 - "fsl,imx27-cspi" for SPI compatible with the one integrated on i.MX27
9 - "fsl,imx31-cspi" for SPI compatible with the one integrated on i.MX31
10 - "fsl,imx35-cspi" for SPI compatible with the one integrated on i.MX35
11 - "fsl,imx51-ecspi" for SPI compatible with the one integrated on i.MX51
12 - "fsl,imx53-ecspi" for SPI compatible with the one integrated on i.MX53 and later Soc
13 - "fsl,imx8mq-ecspi" for SPI compatible with the one integrated on i.MX8M
14 - reg : Offset and length of the register set for the device
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Dqcom,spi-qup.txt4 and an input FIFO) for serial peripheral interface (SPI) mini-core.
10 - compatible: Should contain:
11 "qcom,spi-qup-v1.1.1" for 8660, 8960 and 8064.
12 "qcom,spi-qup-v2.1.1" for 8974 and later
13 "qcom,spi-qup-v2.2.1" for 8974 v2 and later.
15 - reg: Should contain base register location and length
16 - interrupts: Interrupt number used by this controller
18 - clocks: Should contain the core clock and the AHB clock.
19 - clock-names: Should be "core" for the core clock and "iface" for the
22 - #address-cells: Number of cells required to define a chip select
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Dspi-samsung.txt8 - compatible: should be one of the following.
9 - samsung,s3c2443-spi: for s3c2443, s3c2416 and s3c2450 platforms
10 - samsung,s3c6410-spi: for s3c6410 platforms
11 - samsung,s5pv210-spi: for s5pv210 and s5pc110 platforms
12 - samsung,exynos5433-spi: for exynos5433 compatible controllers
13 - samsung,exynos7-spi: for exynos7 platforms <DEPRECATED>
15 - reg: physical base address of the controller and length of memory mapped
18 - interrupts: The interrupt number to the cpu. The interrupt specifier format
21 - dmas : Two or more DMA channel specifiers following the convention outlined
24 - dma-names: Names for the dma channels. There must be at least one channel
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/Documentation/devicetree/bindings/gpio/
Dspear_spics.txt3 SPEAr platform provides a provision to control chipselects of ARM PL022 Prime
8 transfers without releasing their chipselects.
10 Chipselects can be controlled by software by turning them as GPIOs. SPEAr
17 * compatible: should be defined as "st,spear-spics-gpio"
19 * st-spics,peripcfg-reg: peripheral configuration register offset
20 * st-spics,sw-enable-bit: bit offset to enable sw control
21 * st-spics,cs-value-bit: bit offset to drive chipselect low or high
22 * st-spics,cs-enable-mask: chip select number bit mask
23 * st-spics,cs-enable-shift: chip select number program offset
24 * gpio-controller: Marks the device node as gpio controller
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