| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) | |
| %YAML 1.2 | |
| --- | |
| $id: http://devicetree.org/schemas/i2c/aspeed,i2c.yaml# | |
| $schema: http://devicetree.org/meta-schemas/core.yaml# | |
| title: ASPEED I2C on the AST24XX, AST25XX, and AST26XX SoCs | |
| maintainers: | |
| - Rayn Chen <rayn_chen@aspeedtech.com> | |
| allOf: | |
| - $ref: /schemas/i2c/i2c-controller.yaml# | |
| properties: | |
| compatible: | |
| enum: | |
| - aspeed,ast2400-i2c-bus | |
| - aspeed,ast2500-i2c-bus | |
| - aspeed,ast2600-i2c-bus | |
| reg: | |
| minItems: 1 | |
| items: | |
| - description: address offset and range of bus | |
| - description: address offset and range of bus buffer | |
| interrupts: | |
| maxItems: 1 | |
| clocks: | |
| maxItems: 1 | |
| description: | |
| root clock of bus, should reference the APB | |
| clock in the second cell | |
| resets: | |
| maxItems: 1 | |
| bus-frequency: | |
| minimum: 500 | |
| maximum: 4000000 | |
| default: 100000 | |
| description: frequency of the bus clock in Hz defaults to 100 kHz when not | |
| specified | |
| required: | |
| - reg | |
| - compatible | |
| - clocks | |
| - resets | |
| unevaluatedProperties: false | |
| examples: | |
| - | | |
| #include <dt-bindings/clock/aspeed-clock.h> | |
| i2c@40 { | |
| #address-cells = <1>; | |
| #size-cells = <0>; | |
| compatible = "aspeed,ast2500-i2c-bus"; | |
| reg = <0x40 0x40>; | |
| clocks = <&syscon ASPEED_CLK_APB>; | |
| resets = <&syscon ASPEED_RESET_I2C>; | |
| bus-frequency = <100000>; | |
| interrupts = <0>; | |
| interrupt-parent = <&i2c_ic>; | |
| }; |