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| 1 | +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | +%YAML 1.2 |
| 3 | +--- |
| 4 | +$id: http://devicetree.org/schemas/ata/ceva,ahci-1v84.yaml# |
| 5 | +$schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | + |
| 7 | +title: Ceva AHCI SATA Controller |
| 8 | + |
| 9 | +maintainers: |
| 10 | + - Piyush Mehta <[email protected]> |
| 11 | + |
| 12 | +description: | |
| 13 | + The Ceva SATA controller mostly conforms to the AHCI interface with some |
| 14 | + special extensions to add functionality, is a high-performance dual-port |
| 15 | + SATA host controller with an AHCI compliant command layer which supports |
| 16 | + advanced features such as native command queuing and frame information |
| 17 | + structure (FIS) based switching for systems employing port multipliers. |
| 18 | +
|
| 19 | +properties: |
| 20 | + compatible: |
| 21 | + const: ceva,ahci-1v84 |
| 22 | + |
| 23 | + reg: |
| 24 | + maxItems: 1 |
| 25 | + |
| 26 | + clocks: |
| 27 | + maxItems: 1 |
| 28 | + |
| 29 | + dma-coherent: true |
| 30 | + |
| 31 | + interrupts: |
| 32 | + maxItems: 1 |
| 33 | + |
| 34 | + iommus: |
| 35 | + maxItems: 1 |
| 36 | + |
| 37 | + power-domains: |
| 38 | + maxItems: 1 |
| 39 | + |
| 40 | + ceva,p0-cominit-params: |
| 41 | + $ref: /schemas/types.yaml#/definitions/uint8-array |
| 42 | + description: | |
| 43 | + OOB timing value for COMINIT parameter for port 0. |
| 44 | + The fields for the above parameter must be as shown below:- |
| 45 | + ceva,p0-cominit-params = /bits/ 8 <CIBGMN CIBGMX CIBGN CINMP>; |
| 46 | + items: |
| 47 | + - description: CINMP - COMINIT Negate Minimum Period. |
| 48 | + - description: CIBGN - COMINIT Burst Gap Nominal. |
| 49 | + - description: CIBGMX - COMINIT Burst Gap Maximum. |
| 50 | + - description: CIBGMN - COMINIT Burst Gap Minimum. |
| 51 | + |
| 52 | + ceva,p0-comwake-params: |
| 53 | + $ref: /schemas/types.yaml#/definitions/uint8-array |
| 54 | + description: | |
| 55 | + OOB timing value for COMWAKE parameter for port 0. |
| 56 | + The fields for the above parameter must be as shown below:- |
| 57 | + ceva,p0-comwake-params = /bits/ 8 <CWBGMN CWBGMX CWBGN CWNMP>; |
| 58 | + items: |
| 59 | + - description: CWBGMN - COMWAKE Burst Gap Minimum. |
| 60 | + - description: CWBGMX - COMWAKE Burst Gap Maximum. |
| 61 | + - description: CWBGN - COMWAKE Burst Gap Nominal. |
| 62 | + - description: CWNMP - COMWAKE Negate Minimum Period. |
| 63 | + |
| 64 | + ceva,p0-burst-params: |
| 65 | + $ref: /schemas/types.yaml#/definitions/uint8-array |
| 66 | + description: | |
| 67 | + Burst timing value for COM parameter for port 0. |
| 68 | + The fields for the above parameter must be as shown below:- |
| 69 | + ceva,p0-burst-params = /bits/ 8 <BMX BNM SFD PTST>; |
| 70 | + items: |
| 71 | + - description: BMX - COM Burst Maximum. |
| 72 | + - description: BNM - COM Burst Nominal. |
| 73 | + - description: SFD - Signal Failure Detection value. |
| 74 | + - description: PTST - Partial to Slumber timer value. |
| 75 | + |
| 76 | + ceva,p0-retry-params: |
| 77 | + $ref: /schemas/types.yaml#/definitions/uint16-array |
| 78 | + description: | |
| 79 | + Retry interval timing value for port 0. |
| 80 | + The fields for the above parameter must be as shown below:- |
| 81 | + ceva,p0-retry-params = /bits/ 16 <RIT RCT>; |
| 82 | + items: |
| 83 | + - description: RIT - Retry Interval Timer. |
| 84 | + - description: RCT - Rate Change Timer. |
| 85 | + |
| 86 | + ceva,p1-cominit-params: |
| 87 | + $ref: /schemas/types.yaml#/definitions/uint8-array |
| 88 | + description: | |
| 89 | + OOB timing value for COMINIT parameter for port 1. |
| 90 | + The fields for the above parameter must be as shown below:- |
| 91 | + ceva,p1-cominit-params = /bits/ 8 <CIBGMN CIBGMX CIBGN CINMP>; |
| 92 | + items: |
| 93 | + - description: CINMP - COMINIT Negate Minimum Period. |
| 94 | + - description: CIBGN - COMINIT Burst Gap Nominal. |
| 95 | + - description: CIBGMX - COMINIT Burst Gap Maximum. |
| 96 | + - description: CIBGMN - COMINIT Burst Gap Minimum. |
| 97 | + |
| 98 | + ceva,p1-comwake-params: |
| 99 | + $ref: /schemas/types.yaml#/definitions/uint8-array |
| 100 | + description: | |
| 101 | + OOB timing value for COMWAKE parameter for port 1. |
| 102 | + The fields for the above parameter must be as shown below:- |
| 103 | + ceva,p1-comwake-params = /bits/ 8 <CWBGMN CWBGMX CWBGN CWNMP>; |
| 104 | + items: |
| 105 | + - description: CWBGMN - COMWAKE Burst Gap Minimum. |
| 106 | + - description: CWBGMX - COMWAKE Burst Gap Maximum. |
| 107 | + - description: CWBGN - COMWAKE Burst Gap Nominal. |
| 108 | + - description: CWNMP - COMWAKE Negate Minimum Period. |
| 109 | + |
| 110 | + ceva,p1-burst-params: |
| 111 | + $ref: /schemas/types.yaml#/definitions/uint8-array |
| 112 | + description: | |
| 113 | + Burst timing value for COM parameter for port 1. |
| 114 | + The fields for the above parameter must be as shown below:- |
| 115 | + ceva,p1-burst-params = /bits/ 8 <BMX BNM SFD PTST>; |
| 116 | + items: |
| 117 | + - description: BMX - COM Burst Maximum. |
| 118 | + - description: BNM - COM Burst Nominal. |
| 119 | + - description: SFD - Signal Failure Detection value. |
| 120 | + - description: PTST - Partial to Slumber timer value. |
| 121 | + |
| 122 | + ceva,p1-retry-params: |
| 123 | + $ref: /schemas/types.yaml#/definitions/uint16-array |
| 124 | + description: | |
| 125 | + Retry interval timing value for port 1. |
| 126 | + The fields for the above parameter must be as shown below:- |
| 127 | + ceva,pN-retry-params = /bits/ 16 <RIT RCT>; |
| 128 | + items: |
| 129 | + - description: RIT - Retry Interval Timer. |
| 130 | + - description: RCT - Rate Change Timer. |
| 131 | + |
| 132 | + ceva,broken-gen2: |
| 133 | + $ref: /schemas/types.yaml#/definitions/flag |
| 134 | + description: | |
| 135 | + limit to gen1 speed instead of gen2. |
| 136 | +
|
| 137 | + phys: |
| 138 | + maxItems: 1 |
| 139 | + |
| 140 | + phy-names: |
| 141 | + items: |
| 142 | + - const: sata-phy |
| 143 | + |
| 144 | + resets: |
| 145 | + maxItems: 1 |
| 146 | + |
| 147 | +required: |
| 148 | + - compatible |
| 149 | + - reg |
| 150 | + - clocks |
| 151 | + - interrupts |
| 152 | + - ceva,p0-cominit-params |
| 153 | + - ceva,p0-comwake-params |
| 154 | + - ceva,p0-burst-params |
| 155 | + - ceva,p0-retry-params |
| 156 | + - ceva,p1-cominit-params |
| 157 | + - ceva,p1-comwake-params |
| 158 | + - ceva,p1-burst-params |
| 159 | + - ceva,p1-retry-params |
| 160 | + |
| 161 | +additionalProperties: false |
| 162 | + |
| 163 | +examples: |
| 164 | + - | |
| 165 | + #include <dt-bindings/clock/xlnx-zynqmp-clk.h> |
| 166 | + #include <dt-bindings/interrupt-controller/irq.h> |
| 167 | + #include <dt-bindings/power/xlnx-zynqmp-power.h> |
| 168 | + #include <dt-bindings/reset/xlnx-zynqmp-resets.h> |
| 169 | + #include <dt-bindings/clock/xlnx-zynqmp-clk.h> |
| 170 | + #include <dt-bindings/phy/phy.h> |
| 171 | +
|
| 172 | + sata: ahci@fd0c0000 { |
| 173 | + compatible = "ceva,ahci-1v84"; |
| 174 | + reg = <0xfd0c0000 0x200>; |
| 175 | + interrupt-parent = <&gic>; |
| 176 | + interrupts = <0 133 IRQ_TYPE_LEVEL_HIGH>; |
| 177 | + clocks = <&zynqmp_clk SATA_REF>; |
| 178 | + ceva,p0-cominit-params = /bits/ 8 <0x0F 0x25 0x18 0x29>; |
| 179 | + ceva,p0-comwake-params = /bits/ 8 <0x04 0x0B 0x08 0x0F>; |
| 180 | + ceva,p0-burst-params = /bits/ 8 <0x0A 0x08 0x4A 0x06>; |
| 181 | + ceva,p0-retry-params = /bits/ 16 <0x0216 0x7F06>; |
| 182 | + ceva,p1-cominit-params = /bits/ 8 <0x0F 0x25 0x18 0x29>; |
| 183 | + ceva,p1-comwake-params = /bits/ 8 <0x04 0x0B 0x08 0x0F>; |
| 184 | + ceva,p1-burst-params = /bits/ 8 <0x0A 0x08 0x4A 0x06>; |
| 185 | + ceva,p1-retry-params = /bits/ 16 <0x0216 0x7F06>; |
| 186 | + ceva,broken-gen2; |
| 187 | + phys = <&psgtr 1 PHY_TYPE_SATA 1 1>; |
| 188 | + resets = <&zynqmp_reset ZYNQMP_RESET_SATA>; |
| 189 | + }; |
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