diff options
Diffstat (limited to 'Documentation/devicetree/bindings/crypto/fsl,sec2.0.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/crypto/fsl,sec2.0.yaml | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/crypto/fsl,sec2.0.yaml b/Documentation/devicetree/bindings/crypto/fsl,sec2.0.yaml new file mode 100644 index 000000000000..2091b89bb726 --- /dev/null +++ b/Documentation/devicetree/bindings/crypto/fsl,sec2.0.yaml @@ -0,0 +1,144 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/crypto/fsl,sec2.0.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale SoC SEC Security Engines versions 1.x-2.x-3.x + +maintainers: + - J. Neuschäfer <j.ne@posteo.net> + +properties: + compatible: + description: + Should contain entries for this and backward compatible SEC versions, + high to low. Warning - SEC1 and SEC2 are mutually exclusive. + oneOf: + - items: + - const: fsl,sec3.3 + - const: fsl,sec3.1 + - const: fsl,sec3.0 + - const: fsl,sec2.4 + - const: fsl,sec2.2 + - const: fsl,sec2.1 + - const: fsl,sec2.0 + - items: + - const: fsl,sec3.1 + - const: fsl,sec3.0 + - const: fsl,sec2.4 + - const: fsl,sec2.2 + - const: fsl,sec2.1 + - const: fsl,sec2.0 + - items: + - const: fsl,sec3.0 + - const: fsl,sec2.4 + - const: fsl,sec2.2 + - const: fsl,sec2.1 + - const: fsl,sec2.0 + - items: + - const: fsl,sec2.4 + - const: fsl,sec2.2 + - const: fsl,sec2.1 + - const: fsl,sec2.0 + - items: + - const: fsl,sec2.2 + - const: fsl,sec2.1 + - const: fsl,sec2.0 + - items: + - const: fsl,sec2.1 + - const: fsl,sec2.0 + - items: + - const: fsl,sec2.0 + - items: + - const: fsl,sec1.2 + - const: fsl,sec1.0 + - items: + - const: fsl,sec1.0 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + fsl,num-channels: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [ 1, 4 ] + description: An integer representing the number of channels available. + + fsl,channel-fifo-len: + $ref: /schemas/types.yaml#/definitions/uint32 + maximum: 100 + description: + An integer representing the number of descriptor pointers each channel + fetch fifo can hold. + + fsl,exec-units-mask: + $ref: /schemas/types.yaml#/definitions/uint32 + maximum: 0xfff + description: | + The bitmask representing what execution units (EUs) are available. + EU information should be encoded following the SEC's Descriptor Header + Dword EU_SEL0 field documentation, i.e. as follows: + + bit 0 = reserved - should be 0 + bit 1 = set if SEC has the ARC4 EU (AFEU) + bit 2 = set if SEC has the DES/3DES EU (DEU) + bit 3 = set if SEC has the message digest EU (MDEU/MDEU-A) + bit 4 = set if SEC has the random number generator EU (RNG) + bit 5 = set if SEC has the public key EU (PKEU) + bit 6 = set if SEC has the AES EU (AESU) + bit 7 = set if SEC has the Kasumi EU (KEU) + bit 8 = set if SEC has the CRC EU (CRCU) + bit 11 = set if SEC has the message digest EU extended alg set (MDEU-B) + + remaining bits are reserved for future SEC EUs. + + fsl,descriptor-types-mask: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + The bitmask representing what descriptors are available. Descriptor type + information should be encoded following the SEC's Descriptor Header Dword + DESC_TYPE field documentation, i.e. as follows: + + bit 0 = SEC supports descriptor type aesu_ctr_nonsnoop + bit 1 = SEC supports descriptor type ipsec_esp + bit 2 = SEC supports descriptor type common_nonsnoop + bit 3 = SEC supports descriptor type 802.11i AES ccmp + bit 4 = SEC supports descriptor type hmac_snoop_no_afeu + bit 5 = SEC supports descriptor type srtp + bit 6 = SEC supports descriptor type non_hmac_snoop_no_afeu + bit 7 = SEC supports descriptor type pkeu_assemble + bit 8 = SEC supports descriptor type aesu_key_expand_output + bit 9 = SEC supports descriptor type pkeu_ptmul + bit 10 = SEC supports descriptor type common_nonsnoop_afeu + bit 11 = SEC supports descriptor type pkeu_ptadd_dbl + + ..and so on and so forth. + +required: + - compatible + - reg + - fsl,num-channels + - fsl,channel-fifo-len + - fsl,exec-units-mask + - fsl,descriptor-types-mask + +unevaluatedProperties: false + +examples: + - | + /* MPC8548E */ + crypto@30000 { + compatible = "fsl,sec2.1", "fsl,sec2.0"; + reg = <0x30000 0x10000>; + interrupts = <29 2>; + interrupt-parent = <&mpic>; + fsl,num-channels = <4>; + fsl,channel-fifo-len = <24>; + fsl,exec-units-mask = <0xfe>; + fsl,descriptor-types-mask = <0x12b0ebf>; + }; + +... |