diff options
Diffstat (limited to 'Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,qe-ucc-qmc.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,qe-ucc-qmc.yaml | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,qe-ucc-qmc.yaml b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,qe-ucc-qmc.yaml new file mode 100644 index 000000000000..71ae64cb8a4f --- /dev/null +++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,qe-ucc-qmc.yaml @@ -0,0 +1,197 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/soc/fsl/cpm_qe/fsl,qe-ucc-qmc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: PowerQUICC QE QUICC Multichannel Controller (QMC) + +maintainers: + - Herve Codina <herve.codina@bootlin.com> + +description: + The QMC (QUICC Multichannel Controller) emulates up to 64 channels within one + serial controller using the same TDM physical interface routed from TSA. + +properties: + compatible: + items: + - enum: + - fsl,mpc8321-ucc-qmc + - const: fsl,qe-ucc-qmc + + reg: + items: + - description: UCC (Unified communication controller) register base + - description: Dual port ram base + + reg-names: + items: + - const: ucc_regs + - const: dpram + + interrupts: + maxItems: 1 + description: UCC interrupt line in the QE interrupt controller + + fsl,tsa-serial: + $ref: /schemas/types.yaml#/definitions/phandle-array + items: + - items: + - description: phandle to TSA node + - enum: [1, 2, 3, 4, 5] + description: | + TSA serial interface (dt-bindings/soc/qe-fsl,tsa.h defines these + values) + - 1: UCC1 + - 2: UCC2 + - 3: UCC3 + - 4: UCC4 + - 5: UCC5 + description: + Should be a phandle/number pair. The phandle to TSA node and the TSA + serial interface to use. + + fsl,soft-qmc: + $ref: /schemas/types.yaml#/definitions/string + description: + Soft QMC firmware name to load. If this property is omitted, no firmware + are used. + + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + +patternProperties: + '^channel@([0-9]|[1-5][0-9]|6[0-3])$': + description: + A channel managed by this controller + type: object + additionalProperties: false + + properties: + compatible: + items: + - enum: + - fsl,mpc8321-ucc-qmc-hdlc + - const: fsl,qe-ucc-qmc-hdlc + - const: fsl,qmc-hdlc + + reg: + minimum: 0 + maximum: 63 + description: + The channel number + + fsl,operational-mode: + $ref: /schemas/types.yaml#/definitions/string + enum: [transparent, hdlc] + default: transparent + description: | + The channel operational mode + - hdlc: The channel handles HDLC frames + - transparent: The channel handles raw data without any processing + + fsl,reverse-data: + $ref: /schemas/types.yaml#/definitions/flag + description: + The bit order as seen on the channels is reversed, + transmitting/receiving the MSB of each octet first. + This flag is used only in 'transparent' mode. + + fsl,tx-ts-mask: + $ref: /schemas/types.yaml#/definitions/uint64 + description: + Channel assigned Tx time-slots within the Tx time-slots routed by the + TSA to this cell. + + fsl,rx-ts-mask: + $ref: /schemas/types.yaml#/definitions/uint64 + description: + Channel assigned Rx time-slots within the Rx time-slots routed by the + TSA to this cell. + + fsl,framer: + $ref: /schemas/types.yaml#/definitions/phandle + description: + phandle to the framer node. The framer is in charge of an E1/T1 line + interface connected to the TDM bus. It can be used to get the E1/T1 line + status such as link up/down. + + allOf: + - if: + properties: + compatible: + not: + contains: + const: fsl,qmc-hdlc + then: + properties: + fsl,framer: false + + required: + - reg + - fsl,tx-ts-mask + - fsl,rx-ts-mask + +required: + - compatible + - reg + - reg-names + - interrupts + - fsl,tsa-serial + - '#address-cells' + - '#size-cells' + +additionalProperties: false + +examples: + - | + #include <dt-bindings/soc/qe-fsl,tsa.h> + + qmc@a60 { + compatible = "fsl,mpc8321-ucc-qmc", "fsl,qe-ucc-qmc"; + reg = <0x3200 0x200>, + <0x10000 0x1000>; + reg-names = "ucc_regs", "dpram"; + interrupts = <35>; + interrupt-parent = <&qeic>; + fsl,soft-qmc = "fsl_qe_ucode_qmc_8321_11.bin"; + + #address-cells = <1>; + #size-cells = <0>; + + fsl,tsa-serial = <&tsa FSL_QE_TSA_UCC4>; + + channel@16 { + /* Ch16 : First 4 even TS from all routed from TSA */ + reg = <16>; + fsl,operational-mode = "transparent"; + fsl,reverse-data; + fsl,tx-ts-mask = <0x00000000 0x000000aa>; + fsl,rx-ts-mask = <0x00000000 0x000000aa>; + }; + + channel@17 { + /* Ch17 : First 4 odd TS from all routed from TSA */ + reg = <17>; + fsl,operational-mode = "transparent"; + fsl,reverse-data; + fsl,tx-ts-mask = <0x00000000 0x00000055>; + fsl,rx-ts-mask = <0x00000000 0x00000055>; + }; + + channel@19 { + /* Ch19 : 8 TS (TS 8..15) from all routed from TSA */ + compatible = "fsl,mpc8321-ucc-qmc-hdlc", + "fsl,qe-ucc-qmc-hdlc", + "fsl,qmc-hdlc"; + reg = <19>; + fsl,operational-mode = "hdlc"; + fsl,tx-ts-mask = <0x00000000 0x0000ff00>; + fsl,rx-ts-mask = <0x00000000 0x0000ff00>; + fsl,framer = <&framer>; + }; + }; |