Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0 |
| 2 | # Copyright (C) 2008-2011 Freescale Semiconductor Inc. |
| 3 | %YAML 1.2 |
| 4 | --- |
| 5 | $id: http://devicetree.org/schemas/crypto/fsl,sec-v4.0.yaml# |
| 6 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 7 | |
| 8 | title: Freescale SEC 4 |
| 9 | |
| 10 | maintainers: |
| 11 | - '"Horia Geantă" <horia.geanta@nxp.com>' |
| 12 | - Pankaj Gupta <pankaj.gupta@nxp.com> |
| 13 | - Gaurav Jain <gaurav.jain@nxp.com> |
| 14 | |
| 15 | description: | |
| 16 | NOTE: the SEC 4 is also known as Freescale's Cryptographic Accelerator |
| 17 | Accelerator and Assurance Module (CAAM). |
| 18 | |
| 19 | SEC 4 h/w can process requests from 2 types of sources. |
| 20 | 1. DPAA Queue Interface (HW interface between Queue Manager & SEC 4). |
| 21 | 2. Job Rings (HW interface between cores & SEC 4 registers). |
| 22 | |
| 23 | High Speed Data Path Configuration: |
| 24 | |
| 25 | HW interface between QM & SEC 4 and also BM & SEC 4, on DPAA-enabled parts |
| 26 | such as the P4080. The number of simultaneous dequeues the QI can make is |
| 27 | equal to the number of Descriptor Controller (DECO) engines in a particular |
| 28 | SEC version. E.g., the SEC 4.0 in the P4080 has 5 DECOs and can thus |
| 29 | dequeue from 5 subportals simultaneously. |
| 30 | |
| 31 | Job Ring Data Path Configuration: |
| 32 | |
| 33 | Each JR is located on a separate 4k page, they may (or may not) be made visible |
| 34 | in the memory partition devoted to a particular core. The P4080 has 4 JRs, so |
| 35 | up to 4 JRs can be configured; and all 4 JRs process requests in parallel. |
| 36 | |
| 37 | properties: |
| 38 | compatible: |
| 39 | oneOf: |
| 40 | - items: |
| 41 | - const: fsl,sec-v5.4 |
| 42 | - const: fsl,sec-v5.0 |
| 43 | - const: fsl,sec-v4.0 |
| 44 | - items: |
| 45 | - enum: |
| 46 | - fsl,imx6ul-caam |
| 47 | - fsl,sec-v5.0 |
| 48 | - const: fsl,sec-v4.0 |
| 49 | - const: fsl,sec-v4.0 |
| 50 | |
| 51 | reg: |
| 52 | maxItems: 1 |
| 53 | |
| 54 | ranges: |
| 55 | maxItems: 1 |
| 56 | |
| 57 | '#address-cells': |
| 58 | enum: [1, 2] |
| 59 | |
| 60 | '#size-cells': |
| 61 | enum: [1, 2] |
| 62 | |
| 63 | clocks: |
| 64 | minItems: 1 |
| 65 | maxItems: 4 |
| 66 | |
| 67 | clock-names: |
| 68 | minItems: 1 |
| 69 | maxItems: 4 |
| 70 | items: |
| 71 | enum: [mem, aclk, ipg, emi_slow] |
| 72 | |
| 73 | dma-coherent: true |
| 74 | |
| 75 | interrupts: |
| 76 | maxItems: 1 |
| 77 | |
| 78 | fsl,sec-era: |
| 79 | description: Defines the 'ERA' of the SEC device. |
| 80 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 81 | |
| 82 | patternProperties: |
| 83 | '^jr@[0-9a-f]+$': |
| 84 | type: object |
| 85 | additionalProperties: false |
| 86 | description: |
| 87 | Job Ring (JR) Node. Defines data processing interface to SEC 4 across the |
| 88 | peripheral bus for purposes of processing cryptographic descriptors. The |
| 89 | specified address range can be made visible to one (or more) cores. The |
| 90 | interrupt defined for this node is controlled within the address range of |
| 91 | this node. |
| 92 | |
| 93 | properties: |
| 94 | compatible: |
| 95 | oneOf: |
| 96 | - items: |
| 97 | - const: fsl,sec-v5.4-job-ring |
| 98 | - const: fsl,sec-v5.0-job-ring |
| 99 | - const: fsl,sec-v4.0-job-ring |
| 100 | - items: |
| 101 | - const: fsl,sec-v5.0-job-ring |
| 102 | - const: fsl,sec-v4.0-job-ring |
| 103 | - const: fsl,sec-v4.0-job-ring |
| 104 | |
| 105 | reg: |
| 106 | maxItems: 1 |
| 107 | |
| 108 | interrupts: |
| 109 | maxItems: 1 |
| 110 | |
| 111 | fsl,liodn: |
| 112 | description: |
| 113 | Specifies the LIODN to be used in conjunction with the ppid-to-liodn |
| 114 | table that specifies the PPID to LIODN mapping. Needed if the PAMU is |
| 115 | used. Value is a 12 bit value where value is a LIODN ID for this JR. |
| 116 | This property is normally set by boot firmware. |
| 117 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 118 | maximum: 0xfff |
| 119 | |
| 120 | '^rtic@[0-9a-f]+$': |
| 121 | type: object |
| 122 | additionalProperties: false |
| 123 | description: |
| 124 | Run Time Integrity Check (RTIC) Node. Defines a register space that |
| 125 | contains up to 5 sets of addresses and their lengths (sizes) that will be |
| 126 | checked at run time. After an initial hash result is calculated, these |
| 127 | addresses are checked by HW to monitor any change. If any memory is |
| 128 | modified, a Security Violation is triggered (see SNVS definition). |
| 129 | |
| 130 | properties: |
| 131 | compatible: |
| 132 | oneOf: |
| 133 | - items: |
| 134 | - const: fsl,sec-v5.4-rtic |
| 135 | - const: fsl,sec-v5.0-rtic |
| 136 | - const: fsl,sec-v4.0-rtic |
| 137 | - const: fsl,sec-v4.0-rtic |
| 138 | |
| 139 | reg: |
| 140 | maxItems: 1 |
| 141 | |
| 142 | ranges: |
| 143 | maxItems: 1 |
| 144 | |
| 145 | interrupts: |
| 146 | maxItems: 1 |
| 147 | |
| 148 | '#address-cells': |
| 149 | const: 1 |
| 150 | |
| 151 | '#size-cells': |
| 152 | const: 1 |
| 153 | |
| 154 | patternProperties: |
| 155 | '^rtic-[a-z]@[0-9a-f]+$': |
| 156 | type: object |
| 157 | additionalProperties: false |
| 158 | description: |
| 159 | Run Time Integrity Check (RTIC) Memory Node defines individual RTIC |
| 160 | memory regions that are used to perform run-time integrity check of |
| 161 | memory areas that should not modified. The node defines a register |
| 162 | that contains the memory address & length (combined) and a second |
| 163 | register that contains the hash result in big endian format. |
| 164 | |
| 165 | properties: |
| 166 | compatible: |
| 167 | oneOf: |
| 168 | - items: |
| 169 | - const: fsl,sec-v5.4-rtic-memory |
| 170 | - const: fsl,sec-v5.0-rtic-memory |
| 171 | - const: fsl,sec-v4.0-rtic-memory |
| 172 | - const: fsl,sec-v4.0-rtic-memory |
| 173 | |
| 174 | reg: |
| 175 | items: |
| 176 | - description: RTIC memory address |
| 177 | - description: RTIC hash result |
| 178 | |
| 179 | fsl,liodn: |
| 180 | description: |
| 181 | Specifies the LIODN to be used in conjunction with the |
| 182 | ppid-to-liodn table that specifies the PPID to LIODN mapping. |
| 183 | Needed if the PAMU is used. Value is a 12 bit value where value |
| 184 | is a LIODN ID for this JR. This property is normally set by boot |
| 185 | firmware. |
| 186 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 187 | maximum: 0xfff |
| 188 | |
| 189 | fsl,rtic-region: |
| 190 | description: |
| 191 | Specifies the HW address (36 bit address) for this region |
| 192 | followed by the length of the HW partition to be checked; |
| 193 | the address is represented as a 64 bit quantity followed |
| 194 | by a 32 bit length. |
| 195 | $ref: /schemas/types.yaml#/definitions/uint32-array |
| 196 | |
| 197 | required: |
| 198 | - compatible |
| 199 | - reg |
| 200 | - ranges |
| 201 | |
| 202 | additionalProperties: false |
| 203 | |
| 204 | examples: |
| 205 | - | |
| 206 | crypto@300000 { |
| 207 | compatible = "fsl,sec-v4.0"; |
| 208 | #address-cells = <1>; |
| 209 | #size-cells = <1>; |
| 210 | reg = <0x300000 0x10000>; |
| 211 | ranges = <0 0x300000 0x10000>; |
| 212 | interrupts = <92 2>; |
| 213 | |
| 214 | jr@1000 { |
| 215 | compatible = "fsl,sec-v4.0-job-ring"; |
| 216 | reg = <0x1000 0x1000>; |
| 217 | interrupts = <88 2>; |
| 218 | }; |
| 219 | |
| 220 | jr@2000 { |
| 221 | compatible = "fsl,sec-v4.0-job-ring"; |
| 222 | reg = <0x2000 0x1000>; |
| 223 | interrupts = <89 2>; |
| 224 | }; |
| 225 | |
| 226 | jr@3000 { |
| 227 | compatible = "fsl,sec-v4.0-job-ring"; |
| 228 | reg = <0x3000 0x1000>; |
| 229 | interrupts = <90 2>; |
| 230 | }; |
| 231 | |
| 232 | jr@4000 { |
| 233 | compatible = "fsl,sec-v4.0-job-ring"; |
| 234 | reg = <0x4000 0x1000>; |
| 235 | interrupts = <91 2>; |
| 236 | }; |
| 237 | |
| 238 | rtic@6000 { |
| 239 | compatible = "fsl,sec-v4.0-rtic"; |
| 240 | #address-cells = <1>; |
| 241 | #size-cells = <1>; |
| 242 | reg = <0x6000 0x100>; |
| 243 | ranges = <0x0 0x6100 0xe00>; |
| 244 | |
| 245 | rtic-a@0 { |
| 246 | compatible = "fsl,sec-v4.0-rtic-memory"; |
| 247 | reg = <0x00 0x20>, <0x100 0x80>; |
| 248 | }; |
| 249 | |
| 250 | rtic-b@20 { |
| 251 | compatible = "fsl,sec-v4.0-rtic-memory"; |
| 252 | reg = <0x20 0x20>, <0x200 0x80>; |
| 253 | }; |
| 254 | |
| 255 | rtic-c@40 { |
| 256 | compatible = "fsl,sec-v4.0-rtic-memory"; |
| 257 | reg = <0x40 0x20>, <0x300 0x80>; |
| 258 | }; |
| 259 | |
| 260 | rtic-d@60 { |
| 261 | compatible = "fsl,sec-v4.0-rtic-memory"; |
| 262 | reg = <0x60 0x20>, <0x500 0x80>; |
| 263 | }; |
| 264 | }; |
| 265 | }; |
| 266 | ... |