1*76fe9ac1STroy Mitchell# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2*76fe9ac1STroy Mitchell%YAML 1.2 3*76fe9ac1STroy Mitchell--- 4*76fe9ac1STroy Mitchell$id: http://devicetree.org/schemas/i2c/spacemit,k1-i2c.yaml# 5*76fe9ac1STroy Mitchell$schema: http://devicetree.org/meta-schemas/core.yaml# 6*76fe9ac1STroy Mitchell 7*76fe9ac1STroy Mitchelltitle: I2C controller embedded in SpacemiT's K1 SoC 8*76fe9ac1STroy Mitchell 9*76fe9ac1STroy Mitchellmaintainers: 10*76fe9ac1STroy Mitchell - Troy Mitchell <troymitchell988@gmail.com> 11*76fe9ac1STroy Mitchell 12*76fe9ac1STroy Mitchellproperties: 13*76fe9ac1STroy Mitchell compatible: 14*76fe9ac1STroy Mitchell const: spacemit,k1-i2c 15*76fe9ac1STroy Mitchell 16*76fe9ac1STroy Mitchell reg: 17*76fe9ac1STroy Mitchell maxItems: 1 18*76fe9ac1STroy Mitchell 19*76fe9ac1STroy Mitchell interrupts: 20*76fe9ac1STroy Mitchell maxItems: 1 21*76fe9ac1STroy Mitchell 22*76fe9ac1STroy Mitchell clocks: 23*76fe9ac1STroy Mitchell items: 24*76fe9ac1STroy Mitchell - description: I2C Functional Clock 25*76fe9ac1STroy Mitchell - description: APB Bus Clock 26*76fe9ac1STroy Mitchell 27*76fe9ac1STroy Mitchell clock-names: 28*76fe9ac1STroy Mitchell items: 29*76fe9ac1STroy Mitchell - const: func 30*76fe9ac1STroy Mitchell - const: bus 31*76fe9ac1STroy Mitchell 32*76fe9ac1STroy Mitchell clock-frequency: 33*76fe9ac1STroy Mitchell description: | 34*76fe9ac1STroy Mitchell K1 support three different modes which running different frequencies 35*76fe9ac1STroy Mitchell standard speed mode: up to 100000 (100Hz) 36*76fe9ac1STroy Mitchell fast speed mode : up to 400000 (400Hz) 37*76fe9ac1STroy Mitchell high speed mode : up to 3300000 (3.3Mhz) 38*76fe9ac1STroy Mitchell default: 400000 39*76fe9ac1STroy Mitchell maximum: 3300000 40*76fe9ac1STroy Mitchell 41*76fe9ac1STroy Mitchellrequired: 42*76fe9ac1STroy Mitchell - compatible 43*76fe9ac1STroy Mitchell - reg 44*76fe9ac1STroy Mitchell - interrupts 45*76fe9ac1STroy Mitchell - clocks 46*76fe9ac1STroy Mitchell 47*76fe9ac1STroy MitchellunevaluatedProperties: false 48*76fe9ac1STroy Mitchell 49*76fe9ac1STroy Mitchellexamples: 50*76fe9ac1STroy Mitchell - | 51*76fe9ac1STroy Mitchell i2c@d4010800 { 52*76fe9ac1STroy Mitchell compatible = "spacemit,k1-i2c"; 53*76fe9ac1STroy Mitchell reg = <0xd4010800 0x38>; 54*76fe9ac1STroy Mitchell interrupt-parent = <&plic>; 55*76fe9ac1STroy Mitchell interrupts = <36>; 56*76fe9ac1STroy Mitchell clocks =<&ccu 32>, <&ccu 84>; 57*76fe9ac1STroy Mitchell clock-names = "func", "bus"; 58*76fe9ac1STroy Mitchell clock-frequency = <100000>; 59*76fe9ac1STroy Mitchell }; 60*76fe9ac1STroy Mitchell 61*76fe9ac1STroy Mitchell... 62