[PATCH v2 03/12] dt-bindings: crypto: Convert fsl,sec-2.0 to YAML

[J. Neuschäfer]

On Wed, Feb 12, 2025 at 01:33:14PM -0600, Rob Herring wrote:
> On Fri, Feb 07, 2025 at 10:30:20PM +0100, J. Neuschäfer wrote:
> > 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 at posteo.net>
> > ---
> > 
> > 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(-)
[...]
> > +title: Freescale SoC SEC Security Engines versions 1.x-2.x-3.x
> > +
> > +maintainers:
> > +  - J. Neuschäfer <j.ne at posteo.net.
> 
> missing >

Good catch, will fix.


> > +  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
> 
> Why 3 variations of 'descriptor type'?

The reasons have been lost in time, I suppose. I'll normalize the spelling.


Thanks,
J. Neuschäfer