| 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/baikal,bt1-ahci.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Baikal-T1 SoC AHCI SATA controller |
| 8 | |
| 9 | maintainers: |
| 10 | - Serge Semin <fancer.lancer@gmail.com> |
| 11 | |
| 12 | description: |
| 13 | AHCI SATA controller embedded into the Baikal-T1 SoC is based on the |
| 14 | DWC AHCI SATA v4.10a IP-core. |
| 15 | |
| 16 | allOf: |
| 17 | - $ref: snps,dwc-ahci-common.yaml# |
| 18 | |
| 19 | properties: |
| 20 | compatible: |
| 21 | const: baikal,bt1-ahci |
| 22 | |
| 23 | clocks: |
| 24 | items: |
| 25 | - description: Peripheral APB bus clock |
| 26 | - description: Application AXI BIU clock |
| 27 | - description: SATA Ports reference clock |
| 28 | |
| 29 | clock-names: |
| 30 | items: |
| 31 | - const: pclk |
| 32 | - const: aclk |
| 33 | - const: ref |
| 34 | |
| 35 | resets: |
| 36 | items: |
| 37 | - description: Application AXI BIU domain reset |
| 38 | - description: SATA Ports clock domain reset |
| 39 | |
| 40 | reset-names: |
| 41 | items: |
| 42 | - const: arst |
| 43 | - const: ref |
| 44 | |
| 45 | ports-implemented: |
| 46 | maximum: 0x3 |
| 47 | |
| 48 | patternProperties: |
| 49 | "^sata-port@[0-1]$": |
| 50 | $ref: /schemas/ata/snps,dwc-ahci-common.yaml#/$defs/dwc-ahci-port |
| 51 | |
| 52 | properties: |
| 53 | reg: |
| 54 | minimum: 0 |
| 55 | maximum: 1 |
| 56 | |
| 57 | snps,tx-ts-max: |
| 58 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 59 | description: |
| 60 | Due to having AXI3 bus interface utilized the maximum Tx DMA |
| 61 | transaction size can't exceed 16 beats (AxLEN[3:0]). |
| 62 | enum: [ 1, 2, 4, 8, 16 ] |
| 63 | |
| 64 | snps,rx-ts-max: |
| 65 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 66 | description: |
| 67 | Due to having AXI3 bus interface utilized the maximum Rx DMA |
| 68 | transaction size can't exceed 16 beats (AxLEN[3:0]). |
| 69 | enum: [ 1, 2, 4, 8, 16 ] |
| 70 | |
| 71 | unevaluatedProperties: false |
| 72 | |
| 73 | required: |
| 74 | - compatible |
| 75 | - reg |
| 76 | - interrupts |
| 77 | - clocks |
| 78 | - clock-names |
| 79 | - resets |
| 80 | |
| 81 | unevaluatedProperties: false |
| 82 | |
| 83 | examples: |
| 84 | - | |
| 85 | sata@1f050000 { |
| 86 | compatible = "baikal,bt1-ahci"; |
| 87 | reg = <0x1f050000 0x2000>; |
| 88 | #address-cells = <1>; |
| 89 | #size-cells = <0>; |
| 90 | |
| 91 | interrupts = <0 64 4>; |
| 92 | |
| 93 | clocks = <&ccu_sys 1>, <&ccu_axi 2>, <&sata_ref_clk>; |
| 94 | clock-names = "pclk", "aclk", "ref"; |
| 95 | |
| 96 | resets = <&ccu_axi 2>, <&ccu_sys 0>; |
| 97 | reset-names = "arst", "ref"; |
| 98 | |
| 99 | ports-implemented = <0x3>; |
| 100 | |
| 101 | sata-port@0 { |
| 102 | reg = <0>; |
| 103 | |
| 104 | snps,tx-ts-max = <4>; |
| 105 | snps,rx-ts-max = <4>; |
| 106 | }; |
| 107 | |
| 108 | sata-port@1 { |
| 109 | reg = <1>; |
| 110 | |
| 111 | snps,tx-ts-max = <4>; |
| 112 | snps,rx-ts-max = <4>; |
| 113 | }; |
| 114 | }; |
| 115 | ... |