| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/ata/imx-sata.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Freescale i.MX AHCI SATA Controller |
| 8 | |
| 9 | maintainers: |
| 10 | - Shawn Guo <shawn.guo@linaro.org> |
| 11 | |
| 12 | description: | |
| 13 | The Freescale i.MX SATA controller mostly conforms to the AHCI interface |
| 14 | with some special extensions at integration level. |
| 15 | |
| 16 | properties: |
| 17 | compatible: |
| 18 | enum: |
| 19 | - fsl,imx53-ahci |
| 20 | - fsl,imx6q-ahci |
| 21 | - fsl,imx6qp-ahci |
| 22 | |
| 23 | reg: |
| 24 | maxItems: 1 |
| 25 | |
| 26 | interrupts: |
| 27 | maxItems: 1 |
| 28 | |
| 29 | clocks: |
| 30 | items: |
| 31 | - description: sata clock |
| 32 | - description: sata reference clock |
| 33 | - description: ahb clock |
| 34 | |
| 35 | clock-names: |
| 36 | items: |
| 37 | - const: sata |
| 38 | - const: sata_ref |
| 39 | - const: ahb |
| 40 | |
| 41 | fsl,transmit-level-mV: |
| 42 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 43 | description: transmit voltage level, in millivolts. |
| 44 | |
| 45 | fsl,transmit-boost-mdB: |
| 46 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 47 | description: transmit boost level, in milli-decibels. |
| 48 | |
| 49 | fsl,transmit-atten-16ths: |
| 50 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 51 | description: transmit attenuation, in 16ths. |
| 52 | |
| 53 | fsl,receive-eq-mdB: |
| 54 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 55 | description: receive equalisation, in milli-decibels. |
| 56 | |
| 57 | fsl,no-spread-spectrum: |
| 58 | $ref: /schemas/types.yaml#/definitions/flag |
| 59 | description: if present, disable spread-spectrum clocking on the SATA link. |
| 60 | |
| 61 | required: |
| 62 | - compatible |
| 63 | - reg |
| 64 | - interrupts |
| 65 | - clocks |
| 66 | - clock-names |
| 67 | |
| 68 | additionalProperties: false |
| 69 | |
| 70 | examples: |
| 71 | - | |
| 72 | #include <dt-bindings/clock/imx6qdl-clock.h> |
| 73 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 74 | |
| 75 | sata@2200000 { |
| 76 | compatible = "fsl,imx6q-ahci"; |
| 77 | reg = <0x02200000 0x4000>; |
| 78 | interrupts = <0 39 IRQ_TYPE_LEVEL_HIGH>; |
| 79 | clocks = <&clks IMX6QDL_CLK_SATA>, |
| 80 | <&clks IMX6QDL_CLK_SATA_REF_100M>, |
| 81 | <&clks IMX6QDL_CLK_AHB>; |
| 82 | clock-names = "sata", "sata_ref", "ahb"; |
| 83 | }; |