spi: brcm,spi-bcm-qspi: convert to the json-schema
This helps validating DTS files. Changes that require mentioning: 1. reg-names "mspi_regs" and "bspi_regs" were renamed to "mspi" and "bspi" as that is what's used in DTS files and in Linux driver 2. interrupt-names Names were reordered. "mspi_done" has to go first as it's always required. 3. spi-rx-bus-width Property description was dropped as it's part of the spi-controller.yaml 4. Examples: * drop partitions as they are well documented elsewhere * regs and interrupts were formatted and reordered to match yaml * <0x1c> was replaced with <&gic> * "m25p80" node name became "flash" * dropped invalid "m25p,fast-read" property * dropped undocumented and Linux-unused "clock-names" This rewritten binding validates cleanly using the "dt_binding_check". Some Linux stored DTS files will require reordering regs and interrupts to make dtbs_check happy. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20210416194723.23855-1-zajec5@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>pull/634/merge
Rafał Miłecki
Mark Brown
parent
1b8a7d4282
commit
7d82f89c39
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@ -1,245 +0,0 @@
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Broadcom SPI controller
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The Broadcom SPI controller is a SPI master found on various SOCs, including
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BRCMSTB (BCM7XXX), Cygnus, NSP and NS2. The Broadcom Master SPI hw IP consits
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of :
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MSPI : SPI master controller can read and write to a SPI slave device
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BSPI : Broadcom SPI in combination with the MSPI hw IP provides acceleration
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for flash reads and be configured to do single, double, quad lane
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io with 3-byte and 4-byte addressing support.
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Supported Broadcom SoCs have one instance of MSPI+BSPI controller IP.
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MSPI master can be used wihout BSPI. BRCMSTB SoCs have an additional instance
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of a MSPI master without the BSPI to use with non flash slave devices that
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use SPI protocol.
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Required properties:
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- #address-cells:
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Must be <1>, as required by generic SPI binding.
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- #size-cells:
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Must be <0>, also as required by generic SPI binding.
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- compatible:
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Must be one of :
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"brcm,spi-brcmstb-qspi", "brcm,spi-bcm-qspi" : MSPI+BSPI on BRCMSTB SoCs
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"brcm,spi-brcmstb-mspi", "brcm,spi-bcm-qspi" : Second Instance of MSPI
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BRCMSTB SoCs
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"brcm,spi-bcm7425-qspi", "brcm,spi-bcm-qspi", "brcm,spi-brcmstb-mspi" : Second Instance of MSPI
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BRCMSTB SoCs
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"brcm,spi-bcm7429-qspi", "brcm,spi-bcm-qspi", "brcm,spi-brcmstb-mspi" : Second Instance of MSPI
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BRCMSTB SoCs
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"brcm,spi-bcm7435-qspi", "brcm,spi-bcm-qspi", "brcm,spi-brcmstb-mspi" : Second Instance of MSPI
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BRCMSTB SoCs
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"brcm,spi-bcm7445-qspi", "brcm,spi-bcm-qspi", "brcm,spi-brcmstb-mspi" : Second Instance of MSPI
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BRCMSTB SoCs
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"brcm,spi-bcm7216-qspi", "brcm,spi-bcm-qspi", "brcm,spi-brcmstb-mspi" : Second Instance of MSPI
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BRCMSTB SoCs
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"brcm,spi-bcm7278-qspi", "brcm,spi-bcm-qspi", "brcm,spi-brcmstb-mspi" : Second Instance of MSPI
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BRCMSTB SoCs
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"brcm,spi-nsp-qspi", "brcm,spi-bcm-qspi" : MSPI+BSPI on Cygnus, NSP
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"brcm,spi-ns2-qspi", "brcm,spi-bcm-qspi" : NS2 SoCs
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- reg:
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Define the bases and ranges of the associated I/O address spaces.
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The required range is MSPI controller registers.
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- reg-names:
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First name does not matter, but must be reserved for the MSPI controller
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register range as mentioned in 'reg' above, and will typically contain
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- "bspi_regs": BSPI register range, not required with compatible
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"spi-brcmstb-mspi"
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- "mspi_regs": MSPI register range is required for compatible strings
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- "intr_regs", "intr_status_reg" : Interrupt and status register for
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NSP, NS2, Cygnus SoC
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- interrupts
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The interrupts used by the MSPI and/or BSPI controller.
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- interrupt-names:
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Names of interrupts associated with MSPI
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- "mspi_halted" :
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- "mspi_done": Indicates that the requested SPI operation is complete.
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- "spi_lr_fullness_reached" : Linear read BSPI pipe full
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- "spi_lr_session_aborted" : Linear read BSPI pipe aborted
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- "spi_lr_impatient" : Linear read BSPI requested when pipe empty
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- "spi_lr_session_done" : Linear read BSPI session done
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- clocks:
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A phandle to the reference clock for this block.
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Optional properties:
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- native-endian
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Defined when using BE SoC and device uses BE register read/write
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Recommended optional m25p80 properties:
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- spi-rx-bus-width: Definition as per
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Documentation/devicetree/bindings/spi/spi-bus.txt
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Examples:
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BRCMSTB SoC Example:
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SPI Master (MSPI+BSPI) for SPI-NOR access:
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spi@f03e3400 {
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#address-cells = <0x1>;
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#size-cells = <0x0>;
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compatible = "brcm,spi-brcmstb-qspi", "brcm,spi-bcm-qspi";
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reg = <0xf03e0920 0x4 0xf03e3400 0x188 0xf03e3200 0x50>;
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reg-names = "cs_reg", "mspi", "bspi";
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interrupts = <0x6 0x5 0x4 0x3 0x2 0x1 0x0>;
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interrupt-parent = <0x1c>;
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interrupt-names = "mspi_halted",
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"mspi_done",
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"spi_lr_overread",
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"spi_lr_session_done",
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"spi_lr_impatient",
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"spi_lr_session_aborted",
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"spi_lr_fullness_reached";
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clocks = <&hif_spi>;
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clock-names = "sw_spi";
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m25p80@0 {
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#size-cells = <0x2>;
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#address-cells = <0x2>;
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compatible = "m25p80";
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reg = <0x0>;
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spi-max-frequency = <0x2625a00>;
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spi-cpol;
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spi-cpha;
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m25p,fast-read;
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flash0.bolt@0 {
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reg = <0x0 0x0 0x0 0x100000>;
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};
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flash0.macadr@100000 {
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reg = <0x0 0x100000 0x0 0x10000>;
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};
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flash0.nvram@110000 {
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reg = <0x0 0x110000 0x0 0x10000>;
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};
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flash0.kernel@120000 {
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reg = <0x0 0x120000 0x0 0x400000>;
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};
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flash0.devtree@520000 {
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reg = <0x0 0x520000 0x0 0x10000>;
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};
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flash0.splash@530000 {
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reg = <0x0 0x530000 0x0 0x80000>;
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};
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flash0@0 {
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reg = <0x0 0x0 0x0 0x4000000>;
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};
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};
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};
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MSPI master for any SPI device :
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spi@f0416000 {
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#address-cells = <1>;
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#size-cells = <0>;
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clocks = <&upg_fixed>;
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compatible = "brcm,spi-brcmstb-mspi", "brcm,spi-bcm-qspi";
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reg = <0xf0416000 0x180>;
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reg-names = "mspi";
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interrupts = <0x14>;
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interrupt-parent = <&irq0_aon_intc>;
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interrupt-names = "mspi_done";
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};
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iProc SoC Example:
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qspi: spi@18027200 {
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compatible = "brcm,spi-nsp-qspi", "brcm,spi-bcm-qspi";
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reg = <0x18027200 0x184>,
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<0x18027000 0x124>,
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<0x1811c408 0x004>,
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<0x180273a0 0x01c>;
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reg-names = "mspi_regs", "bspi_regs", "intr_regs", "intr_status_reg";
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interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
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interrupt-names =
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"spi_lr_fullness_reached",
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"spi_lr_session_aborted",
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"spi_lr_impatient",
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"spi_lr_session_done",
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"mspi_done",
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"mspi_halted";
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clocks = <&iprocmed>;
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clock-names = "iprocmed";
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num-cs = <2>;
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#address-cells = <1>;
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#size-cells = <0>;
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};
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NS2 SoC Example:
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qspi: spi@66470200 {
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compatible = "brcm,spi-ns2-qspi", "brcm,spi-bcm-qspi";
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reg = <0x66470200 0x184>,
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<0x66470000 0x124>,
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<0x67017408 0x004>,
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<0x664703a0 0x01c>;
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reg-names = "mspi", "bspi", "intr_regs",
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"intr_status_reg";
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interrupts = <GIC_SPI 419 IRQ_TYPE_LEVEL_HIGH>;
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interrupt-names = "spi_l1_intr";
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clocks = <&iprocmed>;
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clock-names = "iprocmed";
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num-cs = <2>;
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#address-cells = <1>;
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#size-cells = <0>;
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};
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m25p80 node for NSP, NS2
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&qspi {
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flash: m25p80@0 {
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#address-cells = <1>;
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#size-cells = <1>;
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compatible = "m25p80";
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reg = <0x0>;
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spi-max-frequency = <12500000>;
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m25p,fast-read;
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spi-cpol;
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spi-cpha;
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partition@0 {
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label = "boot";
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reg = <0x00000000 0x000a0000>;
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};
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partition@a0000 {
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label = "env";
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reg = <0x000a0000 0x00060000>;
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};
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partition@100000 {
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label = "system";
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reg = <0x00100000 0x00600000>;
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};
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partition@700000 {
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label = "rootfs";
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reg = <0x00700000 0x01900000>;
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};
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};
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@ -0,0 +1,198 @@
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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/spi/brcm,spi-bcm-qspi.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Broadcom SPI controller
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maintainers:
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- Kamal Dasu <kdasu.kdev@gmail.com>
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- Rafał Miłecki <rafal@milecki.pl>
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description: |
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The Broadcom SPI controller is a SPI master found on various SOCs, including
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BRCMSTB (BCM7XXX), Cygnus, NSP and NS2. The Broadcom Master SPI hw IP consits
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of:
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MSPI : SPI master controller can read and write to a SPI slave device
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BSPI : Broadcom SPI in combination with the MSPI hw IP provides acceleration
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for flash reads and be configured to do single, double, quad lane
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io with 3-byte and 4-byte addressing support.
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Supported Broadcom SoCs have one instance of MSPI+BSPI controller IP.
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MSPI master can be used wihout BSPI. BRCMSTB SoCs have an additional instance
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of a MSPI master without the BSPI to use with non flash slave devices that
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use SPI protocol.
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allOf:
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- $ref: spi-controller.yaml#
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properties:
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compatible:
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oneOf:
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- description: Second Instance of MSPI BRCMSTB SoCs
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items:
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- enum:
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- brcm,spi-bcm7425-qspi
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- brcm,spi-bcm7429-qspi
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- brcm,spi-bcm7435-qspi
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- brcm,spi-bcm7445-qspi
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- brcm,spi-bcm7216-qspi
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- brcm,spi-bcm7278-qspi
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- const: brcm,spi-bcm-qspi
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- const: brcm,spi-brcmstb-mspi
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- description: Second Instance of MSPI BRCMSTB SoCs
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items:
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- enum:
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- brcm,spi-brcmstb-qspi
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- brcm,spi-brcmstb-mspi
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- brcm,spi-nsp-qspi
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- brcm,spi-ns2-qspi
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- const: brcm,spi-bcm-qspi
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reg:
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minItems: 1
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maxItems: 5
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reg-names:
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minItems: 1
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maxItems: 5
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items:
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- const: mspi
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- const: bspi
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- enum: [ intr_regs, intr_status_reg, cs_reg ]
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- enum: [ intr_regs, intr_status_reg, cs_reg ]
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- enum: [ intr_regs, intr_status_reg, cs_reg ]
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interrupts:
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minItems: 1
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maxItems: 7
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interrupt-names:
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oneOf:
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- minItems: 1
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maxItems: 7
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items:
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- const: mspi_done
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- const: mspi_halted
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- const: spi_lr_fullness_reached
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- const: spi_lr_session_aborted
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- const: spi_lr_impatient
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- const: spi_lr_session_done
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- const: spi_lr_overread
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- const: spi_l1_intr
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clocks:
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maxItems: 1
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description: reference clock for this block
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native-endian:
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$ref: /schemas/types.yaml#/definitions/flag
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description: Defined when using BE SoC and device uses BE register read/write
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unevaluatedProperties: false
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required:
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- reg
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- reg-names
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- interrupts
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- interrupt-names
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examples:
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- | # BRCMSTB SoC: SPI Master (MSPI+BSPI) for SPI-NOR access
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spi@f03e3400 {
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compatible = "brcm,spi-brcmstb-qspi", "brcm,spi-bcm-qspi";
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reg = <0xf03e3400 0x188>, <0xf03e3200 0x50>, <0xf03e0920 0x4>;
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reg-names = "mspi", "bspi", "cs_reg";
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interrupts = <0x5>, <0x6>, <0x1>, <0x2>, <0x3>, <0x4>, <0x0>;
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interrupt-parent = <&gic>;
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||||||
|
interrupt-names = "mspi_done",
|
||||||
|
"mspi_halted",
|
||||||
|
"spi_lr_fullness_reached",
|
||||||
|
"spi_lr_session_aborted",
|
||||||
|
"spi_lr_impatient",
|
||||||
|
"spi_lr_session_done",
|
||||||
|
"spi_lr_overread";
|
||||||
|
clocks = <&hif_spi>;
|
||||||
|
#address-cells = <0x1>;
|
||||||
|
#size-cells = <0x0>;
|
||||||
|
|
||||||
|
flash@0 {
|
||||||
|
#size-cells = <0x2>;
|
||||||
|
#address-cells = <0x2>;
|
||||||
|
compatible = "m25p80";
|
||||||
|
reg = <0x0>;
|
||||||
|
spi-max-frequency = <0x2625a00>;
|
||||||
|
spi-cpol;
|
||||||
|
spi-cpha;
|
||||||
|
};
|
||||||
|
};
|
||||||
|
- | # BRCMSTB SoC: MSPI master for any SPI device
|
||||||
|
spi@f0416000 {
|
||||||
|
clocks = <&upg_fixed>;
|
||||||
|
compatible = "brcm,spi-brcmstb-mspi", "brcm,spi-bcm-qspi";
|
||||||
|
reg = <0xf0416000 0x180>;
|
||||||
|
reg-names = "mspi";
|
||||||
|
interrupts = <0x14>;
|
||||||
|
interrupt-parent = <&irq0_aon_intc>;
|
||||||
|
interrupt-names = "mspi_done";
|
||||||
|
#address-cells = <1>;
|
||||||
|
#size-cells = <0>;
|
||||||
|
};
|
||||||
|
- | # iProc SoC
|
||||||
|
#include <dt-bindings/interrupt-controller/irq.h>
|
||||||
|
#include <dt-bindings/interrupt-controller/arm-gic.h>
|
||||||
|
|
||||||
|
spi@18027200 {
|
||||||
|
compatible = "brcm,spi-nsp-qspi", "brcm,spi-bcm-qspi";
|
||||||
|
reg = <0x18027200 0x184>,
|
||||||
|
<0x18027000 0x124>,
|
||||||
|
<0x1811c408 0x004>,
|
||||||
|
<0x180273a0 0x01c>;
|
||||||
|
reg-names = "mspi", "bspi", "intr_regs", "intr_status_reg";
|
||||||
|
interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>,
|
||||||
|
<GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>,
|
||||||
|
<GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>,
|
||||||
|
<GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>,
|
||||||
|
<GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>,
|
||||||
|
<GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>,
|
||||||
|
<GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
|
||||||
|
interrupt-names = "mspi_done",
|
||||||
|
"mspi_halted",
|
||||||
|
"spi_lr_fullness_reached",
|
||||||
|
"spi_lr_session_aborted",
|
||||||
|
"spi_lr_impatient",
|
||||||
|
"spi_lr_session_done";
|
||||||
|
clocks = <&iprocmed>;
|
||||||
|
num-cs = <2>;
|
||||||
|
#address-cells = <1>;
|
||||||
|
#size-cells = <0>;
|
||||||
|
};
|
||||||
|
- | # NS2 SoC
|
||||||
|
#include <dt-bindings/interrupt-controller/irq.h>
|
||||||
|
#include <dt-bindings/interrupt-controller/arm-gic.h>
|
||||||
|
|
||||||
|
spi@66470200 {
|
||||||
|
compatible = "brcm,spi-ns2-qspi", "brcm,spi-bcm-qspi";
|
||||||
|
reg = <0x66470200 0x184>,
|
||||||
|
<0x66470000 0x124>,
|
||||||
|
<0x67017408 0x004>,
|
||||||
|
<0x664703a0 0x01c>;
|
||||||
|
reg-names = "mspi", "bspi", "intr_regs", "intr_status_reg";
|
||||||
|
interrupts = <GIC_SPI 419 IRQ_TYPE_LEVEL_HIGH>;
|
||||||
|
interrupt-names = "spi_l1_intr";
|
||||||
|
clocks = <&iprocmed>;
|
||||||
|
num-cs = <2>;
|
||||||
|
#address-cells = <1>;
|
||||||
|
#size-cells = <0>;
|
||||||
|
|
||||||
|
flash@0 {
|
||||||
|
#address-cells = <1>;
|
||||||
|
#size-cells = <1>;
|
||||||
|
compatible = "m25p80";
|
||||||
|
reg = <0x0>;
|
||||||
|
spi-max-frequency = <12500000>;
|
||||||
|
spi-cpol;
|
||||||
|
spi-cpha;
|
||||||
|
};
|
||||||
|
};
|
||||||
|
|
@ -3689,7 +3689,7 @@ BROADCOM SPI DRIVER
|
||||||
M: Kamal Dasu <kdasu.kdev@gmail.com>
|
M: Kamal Dasu <kdasu.kdev@gmail.com>
|
||||||
M: bcm-kernel-feedback-list@broadcom.com
|
M: bcm-kernel-feedback-list@broadcom.com
|
||||||
S: Maintained
|
S: Maintained
|
||||||
F: Documentation/devicetree/bindings/spi/brcm,spi-bcm-qspi.txt
|
F: Documentation/devicetree/bindings/spi/brcm,spi-bcm-qspi.yaml
|
||||||
F: drivers/spi/spi-bcm-qspi.*
|
F: drivers/spi/spi-bcm-qspi.*
|
||||||
F: drivers/spi/spi-brcmstb-qspi.c
|
F: drivers/spi/spi-brcmstb-qspi.c
|
||||||
F: drivers/spi/spi-iproc-qspi.c
|
F: drivers/spi/spi-iproc-qspi.c
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue