[PATCH 1/2] dt-bindings: arm: add corstone1000 platform
Rob Herring
robh at kernel.org
Mon Mar 28 09:19:18 PDT 2022
On Fri, Mar 25, 2022 at 06:29:05PM +0100, Krzysztof Kozlowski wrote:
> On 25/03/2022 14:36, Rui Miguel Silva wrote:
> > Add bindings to describe the FPGA in a prototyping board
> > (MPS3) implementation and the Fixed Virtual Platform
> > implementation of the ARM Corstone1000 platform.
> >
> > Signed-off-by: Rui Miguel Silva <rui.silva at linaro.org>
> > ---
> > .../bindings/arm/arm,corstone1000.yaml | 45 +++++++++++++++++++
> > 1 file changed, 45 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/arm/arm,corstone1000.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/arm/arm,corstone1000.yaml b/Documentation/devicetree/bindings/arm/arm,corstone1000.yaml
> > new file mode 100644
> > index 000000000000..a77f88223801
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/arm/arm,corstone1000.yaml
> > @@ -0,0 +1,45 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/arm/arm,corstone1000.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: ARM Corstone1000 Device Tree Bindings
> > +
> > +maintainers:
> > + - Vishnu Banavath <vishnu.banavath at arm.com>
> > + - Rui Miguel Silva <rui.silva at linaro.org>
> > +
> > +description: |+
> > + ARM's Corstone1000 includes pre-verified Corstone SSE-710 subsystem that
> > + provides a flexible compute architecture that combines Cortex‑A and Cortex‑M
> > + processors.
> > +
> > + Support for Cortex‑A32, Cortex‑A35 and Cortex‑A53 processors. Two expansion
> > + systems for M-Class (or other) processors for adding sensors, connectivity,
> > + video, audio and machine learning at the edge System and security IPs to build
> > + a secure SoC for a range of rich IoT applications, for example gateways, smart
> > + cameras and embedded systems.
> > +
> > + Integrated Secure Enclave providing hardware Root of Trust and supporting
> > + seamless integration of the optional CryptoCell™-312 cryptographic
> > + accelerator.
> > +
> > +properties:
> > + $nodename:
> > + const: '/'
> > + compatible:
> > + oneOf:
> > + - description: Corstone1000 MPS3 it has 1 Cortex-A35 CPU core in a FPGA
> > + implementation of the Corstone1000 in the MPS3 prototyping board. See
> > + ARM document DAI0550.
> > + items:
> > + - const: arm,corstone1000-mps3
>
> If I understood correctly your description and DAI0550, the MPS3 board
> is a board with Corstone 100, so you miss here compatible for the chip
> (e.g. arm,corstone1000).
>
> I guess similar pattern for the FVP, so both should be combined within
> an enum (skipping all this description).
Corstone1000 is a collection of IP that would be the basis for an SoC.
These 2 are FVP and FPGA implementations of corstone1000 with additional
IP to make them usable (e.g. USB and ethernet). Each one as a whole is
a one off AIUI. So I don't think they really fit into our board plus SoC
compatible patten and are fine as-is.
Rob
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