Add dma multiplexer support for the Sophgo CV1800/SG2000 SoCs.
The patch include the following patch:
http://lore.kernel.org/linux-riscv/PH7PR20MB4962F822A64CB127911978AABB4E2@PH7PR20MB4962.namprd20.prod.outlook.com/
Inochi Amaoto (4):
dt-bindings: dmaengine: Add dmamux for CV18XX/SG200X series SoC
dt-bindings: clock: sophgo: Add top misc controller of CV18XX/SG200X
series SoC
soc/sophgo: add top sysctrl layout file for CV18XX/SG200X
dmaengine: add driver for Sophgo CV18XX/SG200X dmamux
.../bindings/dma/sophgo,cv1800-dmamux.yaml | 44 ++++
.../soc/sophgo/sophgo,cv1800-top-syscon.yaml | 48 ++++
drivers/dma/Kconfig | 9 +
drivers/dma/Makefile | 1 +
drivers/dma/cv1800-dmamux.c | 232 ++++++++++++++++++
include/dt-bindings/dma/cv1800-dma.h | 55 +++++
include/soc/sophgo/cv1800-sysctl.h | 30 +++
7 files changed, 419 insertions(+)
create mode 100644 Documentation/devicetree/bindings/dma/sophgo,cv1800-dmamux.yaml
create mode 100644 Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml
create mode 100644 drivers/dma/cv1800-dmamux.c
create mode 100644 include/dt-bindings/dma/cv1800-dma.h
create mode 100644 include/soc/sophgo/cv1800-sysctl.h
--
2.43.2
The DMA IP of Sophgo CV18XX/SG200X is based on a DW AXI CORE, with
an additional channel remap register located in the top system control
area. The DMA channel is exclusive to each core.
Add the dmamux binding for CV18XX/SG200X series SoC
Signed-off-by: Inochi Amaoto <[email protected]>
---
.../bindings/dma/sophgo,cv1800-dmamux.yaml | 44 +++++++++++++++
include/dt-bindings/dma/cv1800-dma.h | 55 +++++++++++++++++++
2 files changed, 99 insertions(+)
create mode 100644 Documentation/devicetree/bindings/dma/sophgo,cv1800-dmamux.yaml
create mode 100644 include/dt-bindings/dma/cv1800-dma.h
diff --git a/Documentation/devicetree/bindings/dma/sophgo,cv1800-dmamux.yaml b/Documentation/devicetree/bindings/dma/sophgo,cv1800-dmamux.yaml
new file mode 100644
index 000000000000..8bcbf7beb432
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/sophgo,cv1800-dmamux.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/sophgo,cv1800-dmamux.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo CV1800/SG200 Series DMA mux
+
+maintainers:
+ - Inochi Amaoto <[email protected]>
+
+allOf:
+ - $ref: dma-router.yaml#
+
+properties:
+ compatible:
+ const: sophgo,cv1800-dmamux
+
+ '#dma-cells':
+ const: 3
+ description:
+ The first cells is DMA channel. The second one is device id.
+ The third one is the cpu id.
+
+ dma-masters:
+ maxItems: 1
+
+ dma-requests:
+ const: 8
+
+required:
+ - '#dma-cells'
+ - dma-masters
+
+additionalProperties: false
+
+examples:
+ - |
+ dma-router {
+ compatible = "sophgo,cv1800-dmamux";
+ #dma-cells = <3>;
+ dma-masters = <&dmac>;
+ dma-requests = <8>;
+ };
diff --git a/include/dt-bindings/dma/cv1800-dma.h b/include/dt-bindings/dma/cv1800-dma.h
new file mode 100644
index 000000000000..3ce9dac25259
--- /dev/null
+++ b/include/dt-bindings/dma/cv1800-dma.h
@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */
+
+#ifndef __DT_BINDINGS_DMA_CV1800_H__
+#define __DT_BINDINGS_DMA_CV1800_H__
+
+#define DMA_I2S0_RX 0
+#define DMA_I2S0_TX 1
+#define DMA_I2S1_RX 2
+#define DMA_I2S1_TX 3
+#define DMA_I2S2_RX 4
+#define DMA_I2S2_TX 5
+#define DMA_I2S3_RX 6
+#define DMA_I2S3_TX 7
+#define DMA_UART0_RX 8
+#define DMA_UART0_TX 9
+#define DMA_UART1_RX 10
+#define DMA_UART1_TX 11
+#define DMA_UART2_RX 12
+#define DMA_UART2_TX 13
+#define DMA_UART3_RX 14
+#define DMA_UART3_TX 15
+#define DMA_SPI0_RX 16
+#define DMA_SPI0_TX 17
+#define DMA_SPI1_RX 18
+#define DMA_SPI1_TX 19
+#define DMA_SPI2_RX 20
+#define DMA_SPI2_TX 21
+#define DMA_SPI3_RX 22
+#define DMA_SPI3_TX 23
+#define DMA_I2C0_RX 24
+#define DMA_I2C0_TX 25
+#define DMA_I2C1_RX 26
+#define DMA_I2C1_TX 27
+#define DMA_I2C2_RX 28
+#define DMA_I2C2_TX 29
+#define DMA_I2C3_RX 30
+#define DMA_I2C3_TX 31
+#define DMA_I2C4_RX 32
+#define DMA_I2C4_TX 33
+#define DMA_TDM0_RX 34
+#define DMA_TDM0_TX 35
+#define DMA_TDM1_RX 36
+#define DMA_AUDSRC 37
+#define DMA_SPI_NAND 38
+#define DMA_SPI_NOR 39
+#define DMA_UART4_RX 40
+#define DMA_UART4_TX 41
+#define DMA_SPI_NOR1 42
+
+#define DMA_CPU_A53 0
+#define DMA_CPU_C906_0 1
+#define DMA_CPU_C906_1 2
+
+
+#endif // __DT_BINDINGS_DMA_CV1800_H__
--
2.43.2
CV18XX/SG200X series SoCs have a special top misc system controller,
which provides register access for several devices. In addition to
register access, this system controller also contains some subdevices
(such as dmamux).
Add bindings for top misc controller of CV18XX/SG200X series SoC.
Signed-off-by: Inochi Amaoto <[email protected]>
---
.../soc/sophgo/sophgo,cv1800-top-syscon.yaml | 48 +++++++++++++++++++
1 file changed, 48 insertions(+)
create mode 100644 Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml
diff --git a/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml
new file mode 100644
index 000000000000..29825fee66d5
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/sophgo/sophgo,cv1800-top-syscon.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sophgo CV1800/SG2000 SoC top system controller
+
+maintainers:
+ - Inochi Amaoto <[email protected]>
+
+description:
+ The Sophgo CV1800/SG2000 SoC top misc system controller provides
+ register access to configure related modules.
+
+properties:
+ compatible:
+ items:
+ - const: sophgo,cv1800-top-syscon
+ - const: syscon
+ - const: simple-mfd
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties:
+ type: object
+
+examples:
+ - |
+ syscon@3000000 {
+ compatible = "sophgo,cv1800-top-syscon",
+ "syscon", "simple-mfd";
+ reg = <0x03000000 0x1000>;
+
+ dma-router {
+ compatible = "sophgo,cv1800-dmamux";
+ #dma-cells = <3>;
+ dma-masters = <&dmac>;
+ dma-requests = <8>;
+ };
+ };
+
+...
--
2.43.2
Please see the https://lore.kernel.org/linux-kernel/PH7PR20MB49624AFE44E26F26490DC827BB502@PH7PR20MB4962.namprd20.prod.outlook.com/T/#t
The version includes a wrong patch.
On Tue, 20 Feb 2024 18:20:29 +0800, Inochi Amaoto wrote:
> CV18XX/SG200X series SoCs have a special top misc system controller,
> which provides register access for several devices. In addition to
> register access, this system controller also contains some subdevices
> (such as dmamux).
>
> Add bindings for top misc controller of CV18XX/SG200X series SoC.
>
> Signed-off-by: Inochi Amaoto <[email protected]>
> ---
> .../soc/sophgo/sophgo,cv1800-top-syscon.yaml | 48 +++++++++++++++++++
> 1 file changed, 48 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml
>
My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):
yamllint warnings/errors:
dtschema/dtc warnings/errors:
Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.example.dtb: /example-0/syscon@3000000/dma-router: failed to match any schema with compatible: ['sophgo,cv1800-dmamux']
doc reference errors (make refcheckdocs):
See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/PH7PR20MB4962823548BE1CB8E225ED09BB502@PH7PR20MB4962.namprd20.prod.outlook.com
The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.
If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:
pip3 install dtschema --upgrade
Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.
On Tue, Feb 20, 2024 at 05:16:02AM -0600, Rob Herring wrote:
>
> On Tue, 20 Feb 2024 18:20:29 +0800, Inochi Amaoto wrote:
> > CV18XX/SG200X series SoCs have a special top misc system controller,
> > which provides register access for several devices. In addition to
> > register access, this system controller also contains some subdevices
> > (such as dmamux).
> >
> > Add bindings for top misc controller of CV18XX/SG200X series SoC.
> >
> > Signed-off-by: Inochi Amaoto <[email protected]>
> > ---
> > .../soc/sophgo/sophgo,cv1800-top-syscon.yaml | 48 +++++++++++++++++++
> > 1 file changed, 48 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml
> >
>
> My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
> on your patch (DT_CHECKER_FLAGS is new in v5.13):
>
> yamllint warnings/errors:
>
> dtschema/dtc warnings/errors:
> Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.example.dtb: /example-0/syscon@3000000/dma-router: failed to match any schema with compatible: ['sophgo,cv1800-dmamux']
>
> doc reference errors (make refcheckdocs):
>
> See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/PH7PR20MB4962823548BE1CB8E225ED09BB502@PH7PR20MB4962.namprd20.prod.outlook.com
>
> The base for the series is generally the latest rc1. A different dependency
> should be noted in *this* patch.
>
> If you already ran 'make dt_binding_check' and didn't see the above
> error(s), then make sure 'yamllint' is installed and dt-schema is up to
> date:
>
> pip3 install dtschema --upgrade
>
> Please check and re-submit after running the above command yourself. Note
> that DT_SCHEMA_FILES can be set to your schema file to speed up checking
> your schema. However, it must be unset to test all examples with your schema.
>
This patch should be tested with patch 1. Maybe your bot lost this.