Add support for the time slot assigner (TSA)
available in some PowerQUICC SoC such as MPC885
or MPC866.
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
---
.../bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml | 215 ++++++++++++++++++
include/dt-bindings/soc/cpm1-fsl,tsa.h | 13 ++
2 files changed, 228 insertions(+)
create mode 100644 Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml
create mode 100644 include/dt-bindings/soc/cpm1-fsl,tsa.h
diff --git a/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml
new file mode 100644
index 000000000000..332e902bcc21
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml
@@ -0,0 +1,215 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: PowerQUICC CPM Time-slot assigner (TSA) controller
+
+maintainers:
+ - Herve Codina <herve.codina@bootlin.com>
+
+description:
+ The TSA is the time-slot assigner that can be found on some PowerQUICC SoC.
+ Its purpose is to route some TDM time-slots to other internal serial
+ controllers.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - fsl,mpc885-tsa
+ - fsl,mpc866-tsa
+ - const: fsl,cpm1-tsa
+
+ reg:
+ items:
+ - description: SI (Serial Interface) register base
+ - description: SI RAM base
+
+ reg-names:
+ items:
+ - const: si_regs
+ - const: si_ram
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ '#fsl,serial-cells':
+ $ref: /schemas/types.yaml#/definitions/uint32
+ const: 1
+ description:
+ TSA consumers that use a phandle to TSA need to pass the serial identifier
+ with this phandle (defined in dt-bindings/soc/fsl,tsa.h).
+ For instance "fsl,tsa-serial = <&tsa FSL_CPM_TSA_SCC4>;".
+
+patternProperties:
+ '^tdm@[0-1]$':
+ description:
+ The TDM managed by this controller
+ type: object
+
+ additionalProperties: false
+
+ properties:
+ reg:
+ minimum: 0
+ maximum: 1
+ description:
+ The TDM number for this TDM, 0 for TDMa and 1 for TDMb
+
+ fsl,common-rxtx-pins:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ The hardware can use four dedicated pins for Tx clock, Tx sync, Rx
+ clock and Rx sync or use only two pins, Tx/Rx clock and Tx/Rx sync.
+ Without the 'fsl,common-rxtx-pins' property, the four pins are used.
+ With the 'fsl,common-rxtx-pins' property, two pins are used.
+
+ clocks:
+ minItems: 2
+ items:
+ - description: External clock connected to L1RSYNC pin
+ - description: External clock connected to L1RCLK pin
+ - description: External clock connected to L1TSYNC pin
+ - description: External clock connected to L1TCLK pin
+
+ clock-names:
+ minItems: 2
+ items:
+ - const: l1rsync
+ - const: l1rclk
+ - const: l1tsync
+ - const: l1tclk
+
+ fsl,rx-frame-sync-delay-bits:
+ enum: [0, 1, 2, 3]
+ default: 0
+ description: |
+ Receive frame sync delay in number of bits.
+ Indicates the delay between the Rx sync and the first bit of the Rx
+ frame. 0 for no bit delay. 1, 2 or 3 for 1, 2 or 3 bits delay.
+
+ fsl,tx-frame-sync-delay-bits:
+ enum: [0, 1, 2, 3]
+ default: 0
+ description: |
+ Transmit frame sync delay in number of bits.
+ Indicates the delay between the Tx sync and the first bit of the Tx
+ frame. 0 for no bit delay. 1, 2 or 3 for 1, 2 or 3 bits delay.
+
+ fsl,clock-falling-edge:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ Data is sent on falling edge of the clock (and received on the rising
+ edge). If 'clock-falling-edge' is not present, data is sent on the
+ rising edge (and received on the falling edge).
+
+ fsl,fsync-rising-edge:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ Frame sync pulses are sampled with the rising edge of the channel
+ clock. If 'fsync-rising-edge' is not present, pulses are sampled with
+ the falling edge.
+
+ fsl,double-speed-clock:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ The channel clock is twice the data rate.
+
+ patternProperties:
+ '^fsl,[rt]x-ts-routes$':
+ $ref: /schemas/types.yaml#/definitions/uint32-matrix
+ description: |
+ A list of tuple that indicates the Tx or Rx time-slots routes.
+ items:
+ items:
+ - description:
+ The number of time-slots
+ minimum: 1
+ maximum: 64
+ - description: |
+ The source (Tx) or destination (Rx) serial interface
+ (dt-bindings/soc/cpm1-fsl,tsa.h defines these values)
+ - 0: No destination
+ - 1: SCC2
+ - 2: SCC3
+ - 3: SCC4
+ - 4: SMC1
+ - 5: SMC2
+ enum: [0, 1, 2, 3, 4, 5]
+ minItems: 1
+ maxItems: 64
+
+ allOf:
+ # If fsl,common-rxtx-pins is present, only 2 clocks are needed.
+ # Else, the 4 clocks must be present.
+ - if:
+ required:
+ - fsl,common-rxtx-pins
+ then:
+ properties:
+ clocks:
+ maxItems: 2
+ clock-names:
+ maxItems: 2
+ else:
+ properties:
+ clocks:
+ minItems: 4
+ clock-names:
+ minItems: 4
+
+ required:
+ - reg
+ - clocks
+ - clock-names
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - '#address-cells'
+ - '#size-cells'
+ - '#fsl,serial-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/soc/cpm1-fsl,tsa.h>
+
+ tsa@ae0 {
+ compatible = "fsl,mpc885-tsa", "fsl,cpm1-tsa";
+ reg = <0xae0 0x10>,
+ <0xc00 0x200>;
+ reg-names = "si_regs", "si_ram";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #fsl,serial-cells = <1>;
+
+ tdm@0 {
+ /* TDMa */
+ reg = <0>;
+
+ clocks = <&clk_l1rsynca>, <&clk_l1rclka>;
+ clock-names = "l1rsync", "l1rclk";
+
+ fsl,common-rxtx-pins;
+ fsl,fsync-rising-edge;
+
+ fsl,tx-ts-routes = <2 0>, /* TS 0..1 */
+ <24 FSL_CPM_TSA_SCC4>, /* TS 2..25 */
+ <1 0>, /* TS 26 */
+ <5 FSL_CPM_TSA_SCC3>; /* TS 27..31 */
+
+ fsl,rx-ts-routes = <2 0>, /* TS 0..1 */
+ <24 FSL_CPM_TSA_SCC4>, /* 2..25 */
+ <1 0>, /* TS 26 */
+ <5 FSL_CPM_TSA_SCC3>; /* TS 27..31 */
+ };
+ };
diff --git a/include/dt-bindings/soc/cpm1-fsl,tsa.h b/include/dt-bindings/soc/cpm1-fsl,tsa.h
new file mode 100644
index 000000000000..2cc44e867dbe
--- /dev/null
+++ b/include/dt-bindings/soc/cpm1-fsl,tsa.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */
+
+#ifndef __DT_BINDINGS_SOC_FSL_TSA_H
+#define __DT_BINDINGS_SOC_FSL_TSA_H
+
+#define FSL_CPM_TSA_NU 0 /* Pseuso Cell Id for not used item */
+#define FSL_CPM_TSA_SCC2 1
+#define FSL_CPM_TSA_SCC3 2
+#define FSL_CPM_TSA_SCC4 3
+#define FSL_CPM_TSA_SMC1 4
+#define FSL_CPM_TSA_SMC2 5
+
+#endif
--
2.39.1On Fri, Feb 17, 2023 at 03:56:36PM +0100, Herve Codina wrote: > Add support for the time slot assigner (TSA) > available in some PowerQUICC SoC such as MPC885 > or MPC866. > > Signed-off-by: Herve Codina <herve.codina@bootlin.com> > --- > .../bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml | 215 ++++++++++++++++++ > include/dt-bindings/soc/cpm1-fsl,tsa.h | 13 ++ > 2 files changed, 228 insertions(+) > create mode 100644 Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml > create mode 100644 include/dt-bindings/soc/cpm1-fsl,tsa.h > > diff --git a/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml > new file mode 100644 > index 000000000000..332e902bcc21 > --- /dev/null > +++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml > @@ -0,0 +1,215 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: PowerQUICC CPM Time-slot assigner (TSA) controller > + > +maintainers: > + - Herve Codina <herve.codina@bootlin.com> > + > +description: > + The TSA is the time-slot assigner that can be found on some PowerQUICC SoC. > + Its purpose is to route some TDM time-slots to other internal serial > + controllers. > + > +properties: > + compatible: > + items: > + - enum: > + - fsl,mpc885-tsa > + - fsl,mpc866-tsa > + - const: fsl,cpm1-tsa > + > + reg: > + items: > + - description: SI (Serial Interface) register base > + - description: SI RAM base > + > + reg-names: > + items: > + - const: si_regs > + - const: si_ram > + > + '#address-cells': > + const: 1 > + > + '#size-cells': > + const: 0 > + > + '#fsl,serial-cells': #foo-cells is for when there are differing foo providers which need different number of cells. That's not the case here. > + $ref: /schemas/types.yaml#/definitions/uint32 > + const: 1 > + description: > + TSA consumers that use a phandle to TSA need to pass the serial identifier > + with this phandle (defined in dt-bindings/soc/fsl,tsa.h). > + For instance "fsl,tsa-serial = <&tsa FSL_CPM_TSA_SCC4>;".
Hi Rob, On Sun, 26 Feb 2023 11:48:33 -0600 Rob Herring <robh@kernel.org> wrote: [...] > > + '#size-cells': > > + const: 0 > > + > > + '#fsl,serial-cells': > > #foo-cells is for when there are differing foo providers which need > different number of cells. That's not the case here. > Ok, I will remove the #fsl,serial-cells property on the next iteration. On the next series iteration, I will also remove the #fsl,chan-cells property present later on a patch related to the QMC binding. The #fsl,chan-cells needs to be removed exactly for the same reason. > > + $ref: /schemas/types.yaml#/definitions/uint32 > > + const: 1 > > + description: > > + TSA consumers that use a phandle to TSA need to pass the serial identifier > > + with this phandle (defined in dt-bindings/soc/fsl,tsa.h). > > + For instance "fsl,tsa-serial = <&tsa FSL_CPM_TSA_SCC4>;". Thanks for the review. Hervé
Le 17/02/2023 à 15:56, Herve Codina a écrit :
> Add support for the time slot assigner (TSA)
> available in some PowerQUICC SoC such as MPC885
> or MPC866.
>
> Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
> ---
> .../bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml | 215 ++++++++++++++++++
> include/dt-bindings/soc/cpm1-fsl,tsa.h | 13 ++
> 2 files changed, 228 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml
> create mode 100644 include/dt-bindings/soc/cpm1-fsl,tsa.h
>
> diff --git a/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml
> new file mode 100644
> index 000000000000..332e902bcc21
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml
> @@ -0,0 +1,215 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: PowerQUICC CPM Time-slot assigner (TSA) controller
> +
> +maintainers:
> + - Herve Codina <herve.codina@bootlin.com>
> +
> +description:
> + The TSA is the time-slot assigner that can be found on some PowerQUICC SoC.
> + Its purpose is to route some TDM time-slots to other internal serial
> + controllers.
> +
> +properties:
> + compatible:
> + items:
> + - enum:
> + - fsl,mpc885-tsa
> + - fsl,mpc866-tsa
> + - const: fsl,cpm1-tsa
> +
> + reg:
> + items:
> + - description: SI (Serial Interface) register base
> + - description: SI RAM base
> +
> + reg-names:
> + items:
> + - const: si_regs
> + - const: si_ram
> +
> + '#address-cells':
> + const: 1
> +
> + '#size-cells':
> + const: 0
> +
> + '#fsl,serial-cells':
> + $ref: /schemas/types.yaml#/definitions/uint32
> + const: 1
> + description:
> + TSA consumers that use a phandle to TSA need to pass the serial identifier
> + with this phandle (defined in dt-bindings/soc/fsl,tsa.h).
> + For instance "fsl,tsa-serial = <&tsa FSL_CPM_TSA_SCC4>;".
> +
> +patternProperties:
> + '^tdm@[0-1]$':
> + description:
> + The TDM managed by this controller
> + type: object
> +
> + additionalProperties: false
> +
> + properties:
> + reg:
> + minimum: 0
> + maximum: 1
> + description:
> + The TDM number for this TDM, 0 for TDMa and 1 for TDMb
> +
> + fsl,common-rxtx-pins:
> + $ref: /schemas/types.yaml#/definitions/flag
> + description:
> + The hardware can use four dedicated pins for Tx clock, Tx sync, Rx
> + clock and Rx sync or use only two pins, Tx/Rx clock and Tx/Rx sync.
> + Without the 'fsl,common-rxtx-pins' property, the four pins are used.
> + With the 'fsl,common-rxtx-pins' property, two pins are used.
> +
> + clocks:
> + minItems: 2
> + items:
> + - description: External clock connected to L1RSYNC pin
> + - description: External clock connected to L1RCLK pin
> + - description: External clock connected to L1TSYNC pin
> + - description: External clock connected to L1TCLK pin
> +
> + clock-names:
> + minItems: 2
> + items:
> + - const: l1rsync
> + - const: l1rclk
> + - const: l1tsync
> + - const: l1tclk
> +
> + fsl,rx-frame-sync-delay-bits:
> + enum: [0, 1, 2, 3]
> + default: 0
> + description: |
> + Receive frame sync delay in number of bits.
> + Indicates the delay between the Rx sync and the first bit of the Rx
> + frame. 0 for no bit delay. 1, 2 or 3 for 1, 2 or 3 bits delay.
> +
> + fsl,tx-frame-sync-delay-bits:
> + enum: [0, 1, 2, 3]
> + default: 0
> + description: |
> + Transmit frame sync delay in number of bits.
> + Indicates the delay between the Tx sync and the first bit of the Tx
> + frame. 0 for no bit delay. 1, 2 or 3 for 1, 2 or 3 bits delay.
> +
> + fsl,clock-falling-edge:
> + $ref: /schemas/types.yaml#/definitions/flag
> + description:
> + Data is sent on falling edge of the clock (and received on the rising
> + edge). If 'clock-falling-edge' is not present, data is sent on the
> + rising edge (and received on the falling edge).
> +
> + fsl,fsync-rising-edge:
> + $ref: /schemas/types.yaml#/definitions/flag
> + description:
> + Frame sync pulses are sampled with the rising edge of the channel
> + clock. If 'fsync-rising-edge' is not present, pulses are sampled with
> + the falling edge.
> +
> + fsl,double-speed-clock:
> + $ref: /schemas/types.yaml#/definitions/flag
> + description:
> + The channel clock is twice the data rate.
> +
> + patternProperties:
> + '^fsl,[rt]x-ts-routes$':
> + $ref: /schemas/types.yaml#/definitions/uint32-matrix
> + description: |
> + A list of tuple that indicates the Tx or Rx time-slots routes.
> + items:
> + items:
> + - description:
> + The number of time-slots
> + minimum: 1
> + maximum: 64
> + - description: |
> + The source (Tx) or destination (Rx) serial interface
> + (dt-bindings/soc/cpm1-fsl,tsa.h defines these values)
> + - 0: No destination
> + - 1: SCC2
> + - 2: SCC3
> + - 3: SCC4
> + - 4: SMC1
> + - 5: SMC2
> + enum: [0, 1, 2, 3, 4, 5]
> + minItems: 1
> + maxItems: 64
> +
> + allOf:
> + # If fsl,common-rxtx-pins is present, only 2 clocks are needed.
> + # Else, the 4 clocks must be present.
> + - if:
> + required:
> + - fsl,common-rxtx-pins
> + then:
> + properties:
> + clocks:
> + maxItems: 2
> + clock-names:
> + maxItems: 2
> + else:
> + properties:
> + clocks:
> + minItems: 4
> + clock-names:
> + minItems: 4
> +
> + required:
> + - reg
> + - clocks
> + - clock-names
> +
> +required:
> + - compatible
> + - reg
> + - reg-names
> + - '#address-cells'
> + - '#size-cells'
> + - '#fsl,serial-cells'
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/soc/cpm1-fsl,tsa.h>
> +
> + tsa@ae0 {
> + compatible = "fsl,mpc885-tsa", "fsl,cpm1-tsa";
> + reg = <0xae0 0x10>,
> + <0xc00 0x200>;
> + reg-names = "si_regs", "si_ram";
> +
> + #address-cells = <1>;
> + #size-cells = <0>;
> + #fsl,serial-cells = <1>;
> +
> + tdm@0 {
> + /* TDMa */
> + reg = <0>;
> +
> + clocks = <&clk_l1rsynca>, <&clk_l1rclka>;
> + clock-names = "l1rsync", "l1rclk";
> +
> + fsl,common-rxtx-pins;
> + fsl,fsync-rising-edge;
> +
> + fsl,tx-ts-routes = <2 0>, /* TS 0..1 */
> + <24 FSL_CPM_TSA_SCC4>, /* TS 2..25 */
> + <1 0>, /* TS 26 */
> + <5 FSL_CPM_TSA_SCC3>; /* TS 27..31 */
> +
> + fsl,rx-ts-routes = <2 0>, /* TS 0..1 */
> + <24 FSL_CPM_TSA_SCC4>, /* 2..25 */
> + <1 0>, /* TS 26 */
> + <5 FSL_CPM_TSA_SCC3>; /* TS 27..31 */
> + };
> + };
> diff --git a/include/dt-bindings/soc/cpm1-fsl,tsa.h b/include/dt-bindings/soc/cpm1-fsl,tsa.h
> new file mode 100644
> index 000000000000..2cc44e867dbe
> --- /dev/null
> +++ b/include/dt-bindings/soc/cpm1-fsl,tsa.h
> @@ -0,0 +1,13 @@
> +/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */
> +
> +#ifndef __DT_BINDINGS_SOC_FSL_TSA_H
> +#define __DT_BINDINGS_SOC_FSL_TSA_H
> +
> +#define FSL_CPM_TSA_NU 0 /* Pseuso Cell Id for not used item */
> +#define FSL_CPM_TSA_SCC2 1
> +#define FSL_CPM_TSA_SCC3 2
> +#define FSL_CPM_TSA_SCC4 3
> +#define FSL_CPM_TSA_SMC1 4
> +#define FSL_CPM_TSA_SMC2 5
> +
> +#endif
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