On Fri, Feb 07, 2025 at 10:30:20PM +0100, J. Neuschäfer via B4 Relay wrote: > From: "J. Neuschäfer" <j.ne@xxxxxxxxxx> > > Convert the Freescale security engine (crypto accelerator) binding from > text form to YAML. The list of compatible strings reflects what was > previously described in prose; not all combinations occur in existing > devicetrees. > > Signed-off-by: J. Neuschäfer <j.ne@xxxxxxxxxx> Reviewed-by: Frank Li <Frank.Li@xxxxxxx> > --- > > V2: > - several improvements suggested by Rob Herring: > - remove unnecessary multiline markers > - constrain fsl,num-channels to enum: [1,4] > - constrain fsl,channel-fifo-len to plausible limits > - constrain fsl,exec-units-mask to maximum=0xfff > - trim subject line (remove "binding") > --- > .../devicetree/bindings/crypto/fsl,sec2.0.yaml | 142 +++++++++++++++++++++ > .../devicetree/bindings/crypto/fsl-sec2.txt | 65 ---------- > 2 files changed, 142 insertions(+), 65 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 0000000000000000000000000000000000000000..0b82f3b68b5f82e7fb52d292a623d452c1cdb059 > --- /dev/null > +++ b/Documentation/devicetree/bindings/crypto/fsl,sec2.0.yaml > @@ -0,0 +1,142 @@ > +# 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@xxxxxxxxxx. > + > +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 = set if SEC supports the aesu_ctr_nonsnoop desc. type > + bit 1 = set if SEC supports the ipsec_esp descriptor type > + bit 2 = set if SEC supports the common_nonsnoop desc. type > + bit 3 = set if SEC supports the 802.11i AES ccmp desc. type > + bit 4 = set if SEC supports the hmac_snoop_no_afeu desc. type > + bit 5 = set if SEC supports the srtp descriptor type > + bit 6 = set if SEC supports the non_hmac_snoop_no_afeu desc.type > + bit 7 = set if SEC supports the pkeu_assemble descriptor type > + bit 8 = set if SEC supports the aesu_key_expand_output desc.type > + bit 9 = set if SEC supports the pkeu_ptmul descriptor type > + bit 10 = set if SEC supports the common_nonsnoop_afeu desc. type > + bit 11 = set if SEC supports the pkeu_ptadd_dbl descriptor type > + > + ..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>; > + }; > diff --git a/Documentation/devicetree/bindings/crypto/fsl-sec2.txt b/Documentation/devicetree/bindings/crypto/fsl-sec2.txt > deleted file mode 100644 > index 125f155d00d052eec7d5093b5c5076cbe720417f..0000000000000000000000000000000000000000 > --- a/Documentation/devicetree/bindings/crypto/fsl-sec2.txt > +++ /dev/null > @@ -1,65 +0,0 @@ > -Freescale SoC SEC Security Engines versions 1.x-2.x-3.x > - > -Required properties: > - > -- compatible : Should contain entries for this and backward compatible > - SEC versions, high to low, e.g., "fsl,sec2.1", "fsl,sec2.0" (SEC2/3) > - e.g., "fsl,sec1.2", "fsl,sec1.0" (SEC1) > - warning: SEC1 and SEC2 are mutually exclusive > -- reg : Offset and length of the register set for the device > -- interrupts : the SEC's interrupt number > -- fsl,num-channels : An integer representing the number of channels > - available. > -- fsl,channel-fifo-len : An integer representing the number of > - descriptor pointers each channel fetch fifo can hold. > -- fsl,exec-units-mask : The bitmask representing what execution units > - (EUs) are available. It's a single 32-bit cell. 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 : The bitmask representing what descriptors > - are available. It's a single 32-bit cell. Descriptor type information > - should be encoded following the SEC's Descriptor Header Dword DESC_TYPE > - field documentation, i.e. as follows: > - > - bit 0 = set if SEC supports the aesu_ctr_nonsnoop desc. type > - bit 1 = set if SEC supports the ipsec_esp descriptor type > - bit 2 = set if SEC supports the common_nonsnoop desc. type > - bit 3 = set if SEC supports the 802.11i AES ccmp desc. type > - bit 4 = set if SEC supports the hmac_snoop_no_afeu desc. type > - bit 5 = set if SEC supports the srtp descriptor type > - bit 6 = set if SEC supports the non_hmac_snoop_no_afeu desc.type > - bit 7 = set if SEC supports the pkeu_assemble descriptor type > - bit 8 = set if SEC supports the aesu_key_expand_output desc.type > - bit 9 = set if SEC supports the pkeu_ptmul descriptor type > - bit 10 = set if SEC supports the common_nonsnoop_afeu desc. type > - bit 11 = set if SEC supports the pkeu_ptadd_dbl descriptor type > - > - ..and so on and so forth. > - > -Example: > - > - /* 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>; > - }; > > -- > 2.48.0.rc1.219.gb6b6757d772 > >
