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Date: Mon, 24 Jun 2024 09:04:00 -0600
From: Rob Herring <robh@...nel.org>
To: Frank Li <Frank.Li@....com>
Cc: Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
"open list:FREESCALE SOC DRIVERS" <linuxppc-dev@...ts.ozlabs.org>,
"moderated list:FREESCALE SOC DRIVERS" <linux-arm-kernel@...ts.infradead.org>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" <devicetree@...r.kernel.org>,
open list <linux-kernel@...r.kernel.org>, imx@...ts.linux.dev
Subject: Re: [PATCH 1/1] dt-bindings: soc: fsl: Convert q(b)man-* to yaml
format
On Fri, Jun 21, 2024 at 05:30:14PM -0400, Frank Li wrote:
> Convert qman, bman, qman-portals, bman-portals to yaml format.
>
> Additional Chang for fsl,q(b)man-portal:
typo
> - Only keep one example.
> - Add fsl,qman-channel-id property.
> - Use interrupt type macro.
> - Remove top level qman-portals@...200000 at example.
>
> Additional change for fsl,q(b)man:
> - Fixed example error.
> - Remove redundent part, only keep fsl,qman node.
> - Change memory-regions to memory-region.
> - fsl,q(b)man-portals is not required property
>
> Additional change for fsl,qman-fqd.yaml:
> - Fixed example error.
> - Only keep one example.
> - Ref to reserve-memory.yaml
> - Merge fsl,bman reserver memory part
>
> Signed-off-by: Frank Li <Frank.Li@....com>
> ---
> .../bindings/soc/fsl/bman-portals.txt | 56 ------
> .../devicetree/bindings/soc/fsl/bman.txt | 137 -------------
> .../bindings/soc/fsl/fsl,bman-portal.yaml | 51 +++++
> .../devicetree/bindings/soc/fsl/fsl,bman.yaml | 83 ++++++++
> .../bindings/soc/fsl/fsl,qman-fqd.yaml | 68 +++++++
> .../bindings/soc/fsl/fsl,qman-portal.yaml | 110 +++++++++++
> .../devicetree/bindings/soc/fsl/fsl,qman.yaml | 97 +++++++++
> .../bindings/soc/fsl/qman-portals.txt | 134 -------------
> .../devicetree/bindings/soc/fsl/qman.txt | 187 ------------------
> 9 files changed, 409 insertions(+), 514 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/soc/fsl/bman-portals.txt
> delete mode 100644 Documentation/devicetree/bindings/soc/fsl/bman.txt
> create mode 100644 Documentation/devicetree/bindings/soc/fsl/fsl,bman-portal.yaml
> create mode 100644 Documentation/devicetree/bindings/soc/fsl/fsl,bman.yaml
> create mode 100644 Documentation/devicetree/bindings/soc/fsl/fsl,qman-fqd.yaml
> create mode 100644 Documentation/devicetree/bindings/soc/fsl/fsl,qman-portal.yaml
> create mode 100644 Documentation/devicetree/bindings/soc/fsl/fsl,qman.yaml
> delete mode 100644 Documentation/devicetree/bindings/soc/fsl/qman-portals.txt
> delete mode 100644 Documentation/devicetree/bindings/soc/fsl/qman.txt
> diff --git a/Documentation/devicetree/bindings/soc/fsl/fsl,bman-portal.yaml b/Documentation/devicetree/bindings/soc/fsl/fsl,bman-portal.yaml
> new file mode 100644
> index 0000000000000..06b51f049098f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/fsl/fsl,bman-portal.yaml
> @@ -0,0 +1,51 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/soc/fsl/fsl,bman-portal.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: QorIQ DPAA Queue Manager Portals
> +
> +maintainers:
> + - Frank Li <Frank.Li@....com>
> +
> +description:
> + QorIQ DPAA Buffer Manager Portal
> +
> + Portals are memory mapped interfaces to BMan that allow low-latency, lock-less
> + interaction by software running on processor cores, accelerators and network
> + interfaces with the BMan
> +
> +properties:
> + compatible:
> + oneOf:
> + - const: fsl,bman-portal
> + - items:
> + - enum:
> + - fsl,ls1043a-bmap-portal
> + - fsl,ls1046a-bmap-portal
> + - const: fsl,bman-portal
> + reg:
> + items:
> + - description: the cache-enabled region of the portal
> + - description: the cache-inhibited region of the porta
typo
> +
> + interrupts:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/irq.h>
> +
> + bman-portal@0 {
> + compatible = "fsl,bman-portal-1.0.0", "fsl,bman-portal";
> + reg = <0x0 0x4000>, <0x100000 0x1000>;
> + interrupts = <105 IRQ_TYPE_EDGE_FALLING 0 0>;
> + };
> diff --git a/Documentation/devicetree/bindings/soc/fsl/fsl,bman.yaml b/Documentation/devicetree/bindings/soc/fsl/fsl,bman.yaml
> new file mode 100644
> index 0000000000000..e6b3d489ce5cc
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/fsl/fsl,bman.yaml
> @@ -0,0 +1,83 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/soc/fsl/fsl,bman.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: QorIQ DPAA Buffer Manager
> +
> +maintainers:
> + - Frank Li <Frank.Li@....com>
> +
> +description:
> + The Buffer Manager is part of the Data-Path Acceleration Architecture (DPAA).
> + BMan supports hardware allocation and deallocation of buffers belonging to pools
> + originally created by software with configurable depletion thresholds. This
> + binding covers the CCSR space programming model
> +
> +properties:
> + compatible:
> + oneOf:
> + - const: fsl,bman
> + - items:
> + - enum:
> + - fsl,ls1043a-bman
> + - fsl,ls1046a-bman
> + - const: fsl,bman
> +
> + reg:
> + items:
> + - description:
Needs '|' if you want formatting preserved.
> + Registers region within the CCSR address space
> +
> + The BMan revision information is located in the BMAN_IP_REV_1/2 registers which
> + are located at offsets 0xbf8 and 0xbfc
Wrap lines at 80 unless there's a good reason to go to 100. There isn't
here.
> +
> + interrupts:
> + items:
> + - description: The error interrupt
> +
> + memory-region:
> + $ref: /schemas/types.yaml#/definitions/phandle-array
memory-region already has a type. Need to define how many entries and
what they are.
> + description:
> + List of phandles referencing the BMan private memory
> + nodes (described below). The bman-fqd node must be
> + first followed by bman-pfdr node. Only used on ARM
> +
> + Devices connected to a BMan instance via Direct Connect Portals (DCP) must link
> + to the respective BMan instance
> +
> + fsl,bman-portals:
> + $ref: /schemas/types.yaml#/definitions/phandle
> + description: ref fsl,bman-port.yaml
> +
> + fsl,liodn:
> + $ref: /schemas/types.yaml#/definitions/uint32-array
> + description:
> + See pamu.txt, PAMU property used for static LIODN assignment
> +
> + fsl,iommu-parent:
> + $ref: /schemas/types.yaml#/definitions/phandle
> + description:
> + See pamu.txt, PAMU property used for dynamic LIODN assignment
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> + - fsl,bman-portals
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/irq.h>
> +
> + bman@...000 {
> + compatible = "fsl,bman";
> + reg = <0x31a000 0x1000>;
> + interrupts = <16 IRQ_TYPE_EDGE_FALLING 1 2>;
> + fsl,liodn = <0x17>;
> + fsl,bman-portals = <&bportals>;
> + memory-region = <&bman_fbpr>;
> + };
> diff --git a/Documentation/devicetree/bindings/soc/fsl/fsl,qman-fqd.yaml b/Documentation/devicetree/bindings/soc/fsl/fsl,qman-fqd.yaml
> new file mode 100644
> index 0000000000000..f7af14dc7deb6
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/fsl/fsl,qman-fqd.yaml
> @@ -0,0 +1,68 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/soc/fsl/fsl,qman-fqd.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: QMan Private Memory Nodes
> +
> +maintainers:
> + - Frank Li <Frank.Li@....com>
> +
> +description: |
> + QMan requires two contiguous range of physical memory used for the backing store
> + for QMan Frame Queue Descriptor (FQD) and Packed Frame Descriptor Record (PFDR).
> + This memory is reserved/allocated as a node under the /reserved-memory node.
> +
> + BMan requires a contiguous range of physical memory used for the backing store
> + for BMan Free Buffer Proxy Records (FBPR). This memory is reserved/allocated as
> + a node under the /reserved-memory node.
> +
> + The QMan FQD memory node must be named "qman-fqd"
> + The QMan PFDR memory node must be named "qman-pfdr"
> + The BMan FBPR memory node must be named "bman-fbpr"
> +
> + The following constraints are relevant to the FQD and PFDR private memory:
> + - The size must be 2^(size + 1), with size = 11..29. That is 4 KiB to
> + 1 GiB
> + - The alignment must be a muliptle of the memory size
> +
> + The size of the FQD and PFDP must be chosen by observing the hardware features
> + configured via the Reset Configuration Word (RCW) and that are relevant to a
> + specific board (e.g. number of MAC(s) pinned-out, number of offline/host command
> + FMan ports, etc.). The size configured in the DT must reflect the hardware
> + capabilities and not the specific needs of an application
> +
> + For additional details about reserved memory regions see reserved-memory.txt
Please read what that document says.
> +
> +properties:
> + $nodename:
> + pattern: '^(qman-fqd|qman-pfdr|bman-fbpr|)+$'
Don't need the last '|' or the '+'.
> +
> + compatible:
> + enum:
> + - fsl,qman-fqd
> + - fsl,qman-pfdr
> + - fsl,bman-fbpr
> +
> +required:
> + - compatible
> +
> +allOf:
> + - $ref: reserved-memory.yaml
> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + reserved-memory {
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + qman-fqd {
> + compatible = "shared-dma-pool";
> + size = <0 0x400000>;
> + alignment = <0 0x400000>;
> + no-map;
> + };
> + };
> diff --git a/Documentation/devicetree/bindings/soc/fsl/fsl,qman-portal.yaml b/Documentation/devicetree/bindings/soc/fsl/fsl,qman-portal.yaml
> new file mode 100644
> index 0000000000000..6c81e0d66f4d5
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/fsl/fsl,qman-portal.yaml
> @@ -0,0 +1,110 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/soc/fsl/fsl,qman-portal.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: QorIQ DPAA Queue Manager Portals
> +
> +maintainers:
> + - Frank Li <Frank.Li@....com>
> +
> +description:
> + Portals are memory mapped interfaces to QMan that allow low-latency, lock-less
> + interaction by software running on processor cores, accelerators and network
> + interfaces with the QMan
> +
> +properties:
> + compatible:
> + oneOf:
> + - const: fsl,qman-portal
> + - items:
> + - enum:
> + - fsl,ls1043-qman-portal
> + - fsl,ls1046-qman-portal
> + - fsl,qman-portal-1.2.0
> + - const: fsl,qman-portal
> +
> + reg:
> + items:
> + - description: the cache-enabled region of the portal
> + - description: the cache-inhibited region of the portal
> +
> + interrupts:
> + maxItems: 1
> +
> + fsl,liodn:
> + $ref: /schemas/types.yaml#/definitions/uint32-array
> + description: See pamu.txt. Two LIODN(s). DQRR LIODN (DLIODN) and Frame LIODN
> + (FLIODN)
> +
> + fsl,iommu-parent:
> + $ref: /schemas/types.yaml#/definitions/phandle
> + description: See pamu.txt.
> +
> + fsl,qman-channel-id:
> + $ref: /schemas/types.yaml#/definitions/uint32
> + description: qman channel id.
> +
> + cell-index:
> + $ref: /schemas/types.yaml#/definitions/uint32
> + description:
> + The hardware index of the channel. This can also be
> + determined by dividing any of the channel's 8 work queue
> + IDs by 8
> +
> + In addition to these properties the qman-portals should have sub-nodes to
> + represent the HW devices/portals that are connected to the software portal
> + described here
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> +
> +additionalProperties: false
> +
> +patternProperties:
> + '^(fman0|fman1|pme|crypto|)+$':
Same regex problems here.
> + type: object
> + properties:
> + fsl,liodn:
> + description: See pamu.txt, PAMU property used for static LIODN assignment
> +
> + fsl,iommu-parent:
> + description: See pamu.txt, PAMU property used for dynamic LIODN assignment
> +
> + dev-handle:
> + $ref: /schemas/types.yaml#/definitions/phandle
> + description:
> + The phandle to the particular hardware device that this
> + portal is connected to.
> +
> + additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/irq.h>
> +
> + qman-portal@0 {
> + compatible = "fsl,qman-portal-1.2.0", "fsl,qman-portal";
> + reg = <0 0x4000>, <0x100000 0x1000>;
> + interrupts = <104 IRQ_TYPE_EDGE_FALLING 0 0>;
> + fsl,liodn = <1 2>;
> + fsl,qman-channel-id = <0>;
> +
> + fman0 {
> + fsl,liodn = <0x21>;
> + dev-handle = <&fman0>;
> + };
> +
> + fman1 {
> + fsl,liodn = <0xa1>;
> + dev-handle = <&fman1>;
> + };
> +
> + crypto {
> + fsl,liodn = <0x41 0x66>;
> + dev-handle = <&crypto>;
> + };
> + };
> diff --git a/Documentation/devicetree/bindings/soc/fsl/fsl,qman.yaml b/Documentation/devicetree/bindings/soc/fsl/fsl,qman.yaml
> new file mode 100644
> index 0000000000000..341c3d2cfd6c7
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/fsl/fsl,qman.yaml
> @@ -0,0 +1,97 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/soc/fsl/fsl,qman.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: QorIQ DPAA Queue Manager
> +
> +maintainers:
> + - Frank Li <Frank.Li@....com>
> +
> +description:
> + The Queue Manager is part of the Data-Path Acceleration Architecture (DPAA). QMan
> + supports queuing and QoS scheduling of frames to CPUs, network interfaces and
> + DPAA logic modules, maintains packet ordering within flows. Besides providing
> + flow-level queuing, is also responsible for congestion management functions such
> + as RED/WRED, congestion notifications and tail discards. This binding covers the
> + CCSR space programming model
> +
> +properties:
> + compatible:
> + oneOf:
> + - const: fsl,qman
> + - items:
> + - enum:
> + - fsl,ls1043a-qman
> + - fsl,ls1046a-qman
> + - const: fsl,qman
> + reg:
> + items:
> + - description:
> + Registers region within the CCSR address space
> +
> + The QMan revision information is located in the QMAN_IP_REV_1/2 registers which
> + are located at offsets 0xbf8 and 0xbfc
> +
> + interrupts:
> + items:
> + - description: The error interrupt
> +
> + fsl,qman-portals:
> + $ref: /schemas/types.yaml#/definitions/phandle
> + description: ref fsl,qman-port.yaml
> +
> + fsl,liodn:
> + $ref: /schemas/types.yaml#/definitions/uint32-array
> + description:
> + See pamu.txt, PAMU property used for static LIODN assignment
> +
> + fsl,iommu-parent:
> + $ref: /schemas/types.yaml#/definitions/phandle
> + description:
> + See pamu.txt, PAMU property used for dynamic LIODN assignment
> +
> + clocks:
> + maxItems: 1
> + description:
> + See clock-bindings.txt and qoriq-clock.txt
Drop.
> + Reference input clock. Its frequency is half of the platform clock
> +
> + memory-region:
> + $ref: /schemas/types.yaml#/definitions/phandle-array
> + description:
> + List of phandles referencing the QMan private memory
> + nodes (described below). The qman-fqd node must be
> + first followed by qman-pfdr node. Only used on ARM
> +
> + Devices connected to a QMan instance via Direct Connect Portals (DCP) must link
> + to the respective QMan instance
> +
> + fsl,qman:
> + $ref: /schemas/types.yaml#/definitions/uint32-array
> + description:
> + List of phandle and DCP index pairs, to the QMan instance
> + to which this device is connected via the DCP
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> + - fsl,qman-portals
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/irq.h>
> +
> + qman: qman@...000 {
> + compatible = "fsl,qman";
> + reg = <0x318000 0x1000>;
> + interrupts = <16 IRQ_TYPE_EDGE_FALLING 1 3>;
> + fsl,liodn = <0x16>;
> + fsl,qman-portals = <&qportals>;
> + memory-region = <&qman_fqd &qman_pfdr>;
> + clocks = <&platform_pll 1>;
> + };
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