new file mode 100644
@@ -0,0 +1,115 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/fsl,dspi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ARM Freescale DSPI controller
+
+maintainers:
+ - Frank Li <Frank.Li@nxp.com>
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - fsl,vf610-dspi
+ - fsl,ls1021a-v1.0-dspi
+ - fsl,ls1012a-dspi
+ - fsl,ls1028a-dspi
+ - fsl,ls1043a-dspi
+ - fsl,ls1046a-dspi
+ - fsl,ls1088a-dspi
+ - fsl,ls2080a-dspi
+ - fsl,ls2085a-dspi
+ - fsl,lx2160a-dspi
+ - items:
+ - enum:
+ - fsl,ls1012a-dspi
+ - fsl,ls1028a-dspi
+ - fsl,ls1043a-dspi
+ - fsl,ls1046a-dspi
+ - fsl,ls1088a-dspi
+ - const: fsl,ls1021a-v1.0-dspi
+ - items:
+ - const: fsl,ls2080a-dspi
+ - const: fsl,ls2085a-dspi
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: dspi
+
+ pinctrl-0: true
+
+ pinctrl-names:
+ items:
+ - const: default
+
+ spi-num-chipselects:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: the number of the chipselect signals.
+
+ big-endian:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ If present the dspi device's registers are implemented
+ in big endian mode.
+
+ bus-num:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: the slave chip chipselect signal number.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - interrupts
+ - pinctrl-0
+ - pinctrl-names
+ - spi-num-chipselects
+
+allOf:
+ - $ref: spi-controller.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/vf610-clock.h>
+
+ spi@4002c000 {
+ compatible = "fsl,vf610-dspi";
+ reg = <0x4002c000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clks VF610_CLK_DSPI0>;
+ clock-names = "dspi";
+ spi-num-chipselects = <5>;
+ bus-num = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_dspi0_1>;
+ big-endian;
+
+ flash@0 {
+ compatible = "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <16000000>;
+ spi-cpol;
+ spi-cpha;
+ spi-cs-setup-delay-ns = <100>;
+ spi-cs-hold-delay-ns = <50>;
+ };
+ };
+
new file mode 100644
@@ -0,0 +1,28 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/fsl,spi-dspi-peripheral-props.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Peripheral-specific properties for Freescale DSPI controller
+
+maintainers:
+ - Vladimir Oltean <olteanv@gmail.com>
+
+description:
+ See spi-peripheral-props.yaml for more info.
+
+properties:
+ fsl,spi-cs-sck-delay:
+ description:
+ Delay in nanoseconds between activating chip select and the start of
+ clock signal, at the start of a transfer.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ fsl,spi-sck-cs-delay:
+ description:
+ Delay in nanoseconds between stopping the clock signal and
+ deactivating chip select, at the end of a transfer.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+additionalProperties: true
deleted file mode 100644
@@ -1,65 +0,0 @@
-ARM Freescale DSPI controller
-
-Required properties:
-- compatible : must be one of:
- "fsl,vf610-dspi",
- "fsl,ls1021a-v1.0-dspi",
- "fsl,ls1012a-dspi" (optionally followed by "fsl,ls1021a-v1.0-dspi"),
- "fsl,ls1028a-dspi",
- "fsl,ls1043a-dspi" (optionally followed by "fsl,ls1021a-v1.0-dspi"),
- "fsl,ls1046a-dspi" (optionally followed by "fsl,ls1021a-v1.0-dspi"),
- "fsl,ls1088a-dspi" (optionally followed by "fsl,ls1021a-v1.0-dspi"),
- "fsl,ls2080a-dspi" (optionally followed by "fsl,ls2085a-dspi"),
- "fsl,ls2085a-dspi",
- "fsl,lx2160a-dspi",
-- reg : Offset and length of the register set for the device
-- interrupts : Should contain SPI controller interrupt
-- clocks: from common clock binding: handle to dspi clock.
-- clock-names: from common clock binding: Shall be "dspi".
-- pinctrl-0: pin control group to be used for this controller.
-- pinctrl-names: must contain a "default" entry.
-- spi-num-chipselects : the number of the chipselect signals.
-
-Optional property:
-- big-endian: If present the dspi device's registers are implemented
- in big endian mode.
-- bus-num : the slave chip chipselect signal number.
-
-Optional SPI slave node properties:
-- fsl,spi-cs-sck-delay: a delay in nanoseconds between activating chip
- select and the start of clock signal, at the start of a transfer.
-- fsl,spi-sck-cs-delay: a delay in nanoseconds between stopping the clock
- signal and deactivating chip select, at the end of a transfer.
-
-Example:
-
-dspi0@4002c000 {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "fsl,vf610-dspi";
- reg = <0x4002c000 0x1000>;
- interrupts = <0 67 0x04>;
- clocks = <&clks VF610_CLK_DSPI0>;
- clock-names = "dspi";
- spi-num-chipselects = <5>;
- bus-num = <0>;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_dspi0_1>;
- big-endian;
-
- sflash: at26df081a@0 {
- #address-cells = <1>;
- #size-cells = <1>;
- compatible = "atmel,at26df081a";
- spi-max-frequency = <16000000>;
- spi-cpol;
- spi-cpha;
- reg = <0>;
- linux,modalias = "m25p80";
- modal = "at26df081a";
- fsl,spi-cs-sck-delay = <100>;
- fsl,spi-sck-cs-delay = <50>;
- };
-};
-
-
@@ -122,6 +122,7 @@ properties:
allOf:
- $ref: arm,pl022-peripheral-props.yaml#
- $ref: cdns,qspi-nor-peripheral-props.yaml#
+ - $ref: fsl,spi-dspi-peripheral-props.yaml#
- $ref: samsung,spi-peripheral-props.yaml#
- $ref: nvidia,tegra210-quad-peripheral-props.yaml#
Convert dt-binding spi-fsl-dspi.txt to yaml format. Addtional changes during convert: - compatible string "fsl,ls1028a-dspi" can be followed by fsl,ls1021a-v1.0-dspi. - Change "dspi0@4002c000" to "spi@4002c000" in example. - Reorder properties in example. - Use GIC include in example. - Remove fsl,spi-cs-sck-delay and fsl,spi-sck-cs-delay by use common SPI property. - Use compatible string 'jedec,spi-nor' in example. - Split peripheral part to fsl,spi-dspi-peripheral-props.yaml Signed-off-by: Frank Li <Frank.Li@nxp.com> --- Use part of Vladimir Oltean's work at https://lore.kernel.org/linux-spi/20221111224651.577729-1-vladimir.oltean@nxp.com/ --- .../devicetree/bindings/spi/fsl,dspi.yaml | 115 +++++++++++++++++++++ .../spi/fsl,spi-dspi-peripheral-props.yaml | 28 +++++ .../devicetree/bindings/spi/spi-fsl-dspi.txt | 65 ------------ .../bindings/spi/spi-peripheral-props.yaml | 1 + 4 files changed, 144 insertions(+), 65 deletions(-)