| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/i2c/st,nomadik-i2c.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: ST Microelectronics Nomadik I2C |
| |
| description: The Nomadik I2C host controller began its life in the ST |
| Microelectronics STn8800 SoC, and was then inherited into STn8810 and |
| STn8815. It was part of the prototype STn8500 which then became ST-Ericsson |
| DB8500 after the merge of these two companies wireless divisions. |
| |
| maintainers: |
| - Linus Walleij <linus.walleij@linaro.org> |
| |
| # Need a custom select here or 'arm,primecell' will match on lots of nodes |
| select: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - st,nomadik-i2c |
| - mobileye,eyeq5-i2c |
| required: |
| - compatible |
| |
| properties: |
| compatible: |
| oneOf: |
| - items: |
| - const: st,nomadik-i2c |
| - const: arm,primecell |
| - items: |
| - const: stericsson,db8500-i2c |
| - const: st,nomadik-i2c |
| - const: arm,primecell |
| - items: |
| - const: mobileye,eyeq5-i2c |
| - const: arm,primecell |
| |
| reg: |
| maxItems: 1 |
| |
| interrupts: |
| maxItems: 1 |
| |
| clocks: |
| maxItems: 2 |
| |
| clock-names: |
| oneOf: |
| # Clock name in STn8815 |
| - items: |
| - const: mclk |
| - const: apb_pclk |
| # Clock name in DB8500 or EyeQ5 |
| - items: |
| - const: i2cclk |
| - const: apb_pclk |
| |
| power-domains: |
| maxItems: 1 |
| |
| resets: |
| maxItems: 1 |
| |
| clock-frequency: |
| minimum: 1 |
| maximum: 400000 |
| |
| mobileye,olb: |
| $ref: /schemas/types.yaml#/definitions/phandle-array |
| items: |
| - items: |
| - description: Phandle to OLB system controller node. |
| - description: Platform-wide controller ID (integer starting from zero). |
| description: |
| The phandle pointing to OLB system controller node, with the I2C |
| controller index. |
| |
| required: |
| - compatible |
| - reg |
| - interrupts |
| - clocks |
| - clock-names |
| |
| unevaluatedProperties: false |
| |
| allOf: |
| - $ref: /schemas/i2c/i2c-controller.yaml# |
| - if: |
| properties: |
| compatible: |
| contains: |
| const: mobileye,eyeq5-i2c |
| then: |
| required: |
| - mobileye,olb |
| else: |
| properties: |
| mobileye,olb: false |
| |
| examples: |
| - | |
| #include <dt-bindings/interrupt-controller/irq.h> |
| #include <dt-bindings/interrupt-controller/arm-gic.h> |
| #include <dt-bindings/reset/stericsson,db8500-prcc-reset.h> |
| #include <dt-bindings/arm/ux500_pm_domains.h> |
| i2c@80004000 { |
| compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell"; |
| reg = <0x80004000 0x1000>; |
| interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>; |
| |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| clock-frequency = <400000>; |
| clocks = <&prcc_kclk 3 3>, <&prcc_pclk 3 3>; |
| clock-names = "i2cclk", "apb_pclk"; |
| power-domains = <&pm_domains DOMAIN_VAPE>; |
| resets = <&prcc_reset DB8500_PRCC_3 DB8500_PRCC_3_RESET_I2C0>; |
| }; |
| |
| i2c@101f8000 { |
| compatible = "st,nomadik-i2c", "arm,primecell"; |
| reg = <0x101f8000 0x1000>; |
| interrupt-parent = <&vica>; |
| interrupts = <20>; |
| clock-frequency = <100000>; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| clocks = <&i2c0clk>, <&pclki2c0>; |
| clock-names = "mclk", "apb_pclk"; |
| }; |
| - | |
| #include <dt-bindings/interrupt-controller/mips-gic.h> |
| i2c@300000 { |
| compatible = "mobileye,eyeq5-i2c", "arm,primecell"; |
| reg = <0x300000 0x1000>; |
| interrupt-parent = <&gic>; |
| interrupts = <GIC_SHARED 1 IRQ_TYPE_LEVEL_HIGH>; |
| clock-frequency = <400000>; |
| #address-cells = <1>; |
| #size-cells = <0>; |
| clocks = <&i2c_ser_clk>, <&i2c_clk>; |
| clock-names = "i2cclk", "apb_pclk"; |
| mobileye,olb = <&olb 0>; |
| }; |
| |
| ... |
