Messages in this thread | | | Subject | Re: [PATCH v4 5/6] dt-bindings: spi: Convert cadence-quadspi.txt to cadence-quadspi.yaml | From | "Ramuthevar, Vadivel MuruganX" <> | Date | Thu, 29 Oct 2020 09:57:03 +0800 |
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Hi Rob,
Thank you for your review comments...
On 28/10/2020 11:07 pm, Rob Herring wrote: > On Tue, Oct 27, 2020 at 04:22:50PM +0800, Ramuthevar,Vadivel MuruganX wrote: >> From: Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@linux.intel.com> >> >> Convert the cadence-quadspi.txt documentation to cadence-quadspi.yaml >> remove the cadence-quadspi.txt from Documentation/devicetree/bindings/spi/ >> >> Signed-off-by: Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@linux.intel.com> >> --- >> .../devicetree/bindings/spi/cadence-quadspi.txt | 67 ---------- >> .../devicetree/bindings/spi/cadence-quadspi.yaml | 148 +++++++++++++++++++++ >> 2 files changed, 148 insertions(+), 67 deletions(-) >> delete mode 100644 Documentation/devicetree/bindings/spi/cadence-quadspi.txt >> create mode 100644 Documentation/devicetree/bindings/spi/cadence-quadspi.yaml >> >> diff --git a/Documentation/devicetree/bindings/spi/cadence-quadspi.txt b/Documentation/devicetree/bindings/spi/cadence-quadspi.txt >> deleted file mode 100644 >> index 945be7d5b236..000000000000 >> --- a/Documentation/devicetree/bindings/spi/cadence-quadspi.txt >> +++ /dev/null >> @@ -1,67 +0,0 @@ >> -* Cadence Quad SPI controller >> - >> -Required properties: >> -- compatible : should be one of the following: >> - Generic default - "cdns,qspi-nor". >> - For TI 66AK2G SoC - "ti,k2g-qspi", "cdns,qspi-nor". >> - For TI AM654 SoC - "ti,am654-ospi", "cdns,qspi-nor". >> -- reg : Contains two entries, each of which is a tuple consisting of a >> - physical address and length. The first entry is the address and >> - length of the controller register set. The second entry is the >> - address and length of the QSPI Controller data area. >> -- interrupts : Unit interrupt specifier for the controller interrupt. >> -- clocks : phandle to the Quad SPI clock. >> -- cdns,fifo-depth : Size of the data FIFO in words. >> -- cdns,fifo-width : Bus width of the data FIFO in bytes. >> -- cdns,trigger-address : 32-bit indirect AHB trigger address. >> - >> -Optional properties: >> -- cdns,is-decoded-cs : Flag to indicate whether decoder is used or not. >> -- cdns,rclk-en : Flag to indicate that QSPI return clock is used to latch >> - the read data rather than the QSPI clock. Make sure that QSPI return >> - clock is populated on the board before using this property. >> - >> -Optional subnodes: >> -Subnodes of the Cadence Quad SPI controller are spi slave nodes with additional >> -custom properties: >> -- cdns,read-delay : Delay for read capture logic, in clock cycles >> -- cdns,tshsl-ns : Delay in nanoseconds for the length that the master >> - mode chip select outputs are de-asserted between >> - transactions. >> -- cdns,tsd2d-ns : Delay in nanoseconds between one chip select being >> - de-activated and the activation of another. >> -- cdns,tchsh-ns : Delay in nanoseconds between last bit of current >> - transaction and deasserting the device chip select >> - (qspi_n_ss_out). >> -- cdns,tslch-ns : Delay in nanoseconds between setting qspi_n_ss_out low >> - and first bit transfer. >> -- resets : Must contain an entry for each entry in reset-names. >> - See ../reset/reset.txt for details. >> -- reset-names : Must include either "qspi" and/or "qspi-ocp". >> - >> -Example: >> - >> - qspi: spi@ff705000 { >> - compatible = "cdns,qspi-nor"; >> - #address-cells = <1>; >> - #size-cells = <0>; >> - reg = <0xff705000 0x1000>, >> - <0xffa00000 0x1000>; >> - interrupts = <0 151 4>; >> - clocks = <&qspi_clk>; >> - cdns,is-decoded-cs; >> - cdns,fifo-depth = <128>; >> - cdns,fifo-width = <4>; >> - cdns,trigger-address = <0x00000000>; >> - resets = <&rst QSPI_RESET>, <&rst QSPI_OCP_RESET>; >> - reset-names = "qspi", "qspi-ocp"; >> - >> - flash0: n25q00@0 { >> - ... >> - cdns,read-delay = <4>; >> - cdns,tshsl-ns = <50>; >> - cdns,tsd2d-ns = <50>; >> - cdns,tchsh-ns = <4>; >> - cdns,tslch-ns = <4>; >> - }; >> - }; >> diff --git a/Documentation/devicetree/bindings/spi/cadence-quadspi.yaml b/Documentation/devicetree/bindings/spi/cadence-quadspi.yaml >> new file mode 100644 >> index 000000000000..da11cb3bedeb >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/spi/cadence-quadspi.yaml >> @@ -0,0 +1,148 @@ >> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) >> +%YAML 1.2 >> +--- >> +$id: http://devicetree.org/schemas/spi/cadence-quadspi.yaml# >> +$schema: http://devicetree.org/meta-schemas/core.yaml# >> + >> +title: Cadence Quad SPI controller >> + >> +maintainers: >> + - Vadivel Murugan <vadivel.muruganx.ramuthevar@intel.com> >> + >> +allOf: >> + - $ref: "spi-controller.yaml#" >> + >> +properties: >> + compatible: >> + oneOf: >> + - items: >> + - const: cdns,qspi-nor >> + - const: ti,k2g-qspi, cdns,qspi-nor >> + - const: ti,am654-ospi, cdns,qspi-nor > > This is still not right. 'const' points to a single string which is not > what you want. oh my bad, you are right, will update,thanks!
Regards Vadivel > >> + >> + reg: >> + items: >> + - description: the controller register set >> + - description: the controller data area >> + >> + interrupts: >> + maxItems: 1 >> + >> + clocks: >> + maxItems: 1 >> + >> + cdns,fifo-depth: >> + description: >> + Size of the data FIFO in words. >> + $ref: "/schemas/types.yaml#/definitions/uint32" >> + enum: [ 128, 256 ] >> + default: 128 >> + >> + cdns,fifo-width: >> + $ref: /schemas/types.yaml#/definitions/uint32 >> + description: >> + Bus width of the data FIFO in bytes. >> + default: 4 >> + >> + cdns,trigger-address: >> + $ref: /schemas/types.yaml#/definitions/uint32 >> + description: >> + 32-bit indirect AHB trigger address. >> + >> + cdns,is-decoded-cs: >> + type: boolean >> + description: >> + Flag to indicate whether decoder is used or not. >> + >> + cdns,rclk-en: >> + type: boolean >> + description: >> + Flag to indicate that QSPI return clock is used to latch the read >> + data rather than the QSPI clock. Make sure that QSPI return clock >> + is populated on the board before using this property. >> + >> + resets: >> + maxItems : 2 >> + >> + reset-names: >> + minItems: 1 >> + maxItems: 2 >> + items: >> + enum: [ qspi, qspi-ocp ] >> + >> +# subnode's properties >> +patternProperties: >> + "@[0-9a-f]+$": >> + type: object >> + description: >> + flash device uses the subnodes below defined properties. >> + properties: >> + cdns,read-delay: >> + $ref: /schemas/types.yaml#/definitions/uint32 >> + description: >> + Delay for read capture logic, in clock cycles. >> + >> + cdns,tshsl-ns: >> + description: >> + Delay in nanoseconds for the length that the master mode chip select >> + outputs are de-asserted between transactions. >> + >> + cdns,tsd2d-ns: >> + description: >> + Delay in nanoseconds between one chip select being de-activated >> + and the activation of another. >> + >> + cdns,tchsh-ns: >> + description: >> + Delay in nanoseconds between last bit of current transaction and >> + deasserting the device chip select (qspi_n_ss_out). >> + >> + cdns,tslch-ns: >> + description: >> + Delay in nanoseconds between setting qspi_n_ss_out low and >> + first bit transfer. >> + >> +required: >> + - compatible >> + - reg >> + - interrupts >> + - clocks >> + - cdns,fifo-depth >> + - cdns,fifo-width >> + - cdns,trigger-address >> + - cdns,is-decoded-cs >> + - cdns,rclk-en >> + - resets >> + - reset-names >> + >> +additionalProperties: false >> + >> +examples: >> + - | >> + qspi: spi@ff705000 { >> + compatible = "cadence,qspi","cdns,qpsi-nor"; >> + #address-cells = <1>; >> + #size-cells = <0>; >> + reg = <0xff705000 0x1000>, >> + <0xffa00000 0x1000>; >> + interrupts = <0 151 4>; >> + clocks = <&qspi_clk>; >> + cdns,fifo-depth = <128>; >> + cdns,fifo-width = <4>; >> + cdns,trigger-address = <0x00000000>; >> + resets = <&rst 0x1>, <&rst 0x2>; >> + reset-names = "qspi", "qspi-ocp"; >> + >> + flash@0 { >> + compatible = "jedec,spi-nor"; >> + reg = <0x0>; >> + cdns,read-delay = <4>; >> + cdns,tshsl-ns = <50>; >> + cdns,tsd2d-ns = <50>; >> + cdns,tchsh-ns = <4>; >> + cdns,tslch-ns = <4>; >> + }; >> + >> + }; >> + >> +... >> -- >> 2.11.0 >>
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