diff mbox series

[4/8] dt-bindings: memory: Convert ingenic,jz4780-nemc.txt to YAML

Message ID 20200426185856.38826-4-paul@crapouillou.net
State New
Headers show
Series [1/8] dt-bindings: clock: Convert ingenic,cgu.txt to YAML | expand

Commit Message

Paul Cercueil April 26, 2020, 6:58 p.m. UTC
Convert the ingenic,jz4780-nemc.txt doc file to ingenic,nemc.yaml.

The ingenic,jz4725b-nemc compatible string was added in the process,
with a fallback to ingenic,jz4740-nemc.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
 .../ingenic,jz4780-nemc.txt                   | 76 ---------------
 .../ingenic,nemc-client.yaml                  | 45 +++++++++
 .../memory-controllers/ingenic,nemc.yaml      | 95 +++++++++++++++++++
 3 files changed, 140 insertions(+), 76 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/memory-controllers/ingenic,jz4780-nemc.txt
 create mode 100644 Documentation/devicetree/bindings/memory-controllers/ingenic,nemc-client.yaml
 create mode 100644 Documentation/devicetree/bindings/memory-controllers/ingenic,nemc.yaml

Comments

Rob Herring May 11, 2020, 10:54 p.m. UTC | #1
On Sun, Apr 26, 2020 at 08:58:52PM +0200, Paul Cercueil wrote:
> Convert the ingenic,jz4780-nemc.txt doc file to ingenic,nemc.yaml.
> 
> The ingenic,jz4725b-nemc compatible string was added in the process,
> with a fallback to ingenic,jz4740-nemc.
> 
> Signed-off-by: Paul Cercueil <paul@crapouillou.net>
> ---
>  .../ingenic,jz4780-nemc.txt                   | 76 ---------------
>  .../ingenic,nemc-client.yaml                  | 45 +++++++++
>  .../memory-controllers/ingenic,nemc.yaml      | 95 +++++++++++++++++++
>  3 files changed, 140 insertions(+), 76 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/memory-controllers/ingenic,jz4780-nemc.txt
>  create mode 100644 Documentation/devicetree/bindings/memory-controllers/ingenic,nemc-client.yaml
>  create mode 100644 Documentation/devicetree/bindings/memory-controllers/ingenic,nemc.yaml
> 
> diff --git a/Documentation/devicetree/bindings/memory-controllers/ingenic,jz4780-nemc.txt b/Documentation/devicetree/bindings/memory-controllers/ingenic,jz4780-nemc.txt
> deleted file mode 100644
> index 59b8dcc118ee..000000000000
> --- a/Documentation/devicetree/bindings/memory-controllers/ingenic,jz4780-nemc.txt
> +++ /dev/null
> @@ -1,76 +0,0 @@
> -* Ingenic JZ4780 NAND/external memory controller (NEMC)
> -
> -This file documents the device tree bindings for the NEMC external memory
> -controller in Ingenic JZ4780
> -
> -Required properties:
> -- compatible: Should be set to one of:
> -    "ingenic,jz4740-nemc" (JZ4740)
> -    "ingenic,jz4780-nemc" (JZ4780)
> -- reg: Should specify the NEMC controller registers location and length.
> -- clocks: Clock for the NEMC controller.
> -- #address-cells: Must be set to 2.
> -- #size-cells: Must be set to 1.
> -- ranges: A set of ranges for each bank describing the physical memory layout.
> -  Each should specify the following 4 integer values:
> -
> -    <cs number> 0 <physical address of mapping> <size of mapping>
> -
> -Each child of the NEMC node describes a device connected to the NEMC.
> -
> -Required child node properties:
> -- reg: Should contain at least one register specifier, given in the following
> -  format:
> -
> -    <cs number> <offset> <size>
> -
> -  Multiple registers can be specified across multiple banks. This is needed,
> -  for example, for packaged NAND devices with multiple dies. Such devices
> -  should be grouped into a single node.
> -
> -Optional child node properties:
> -- ingenic,nemc-bus-width: Specifies the bus width in bits. Defaults to 8 bits.
> -- ingenic,nemc-tAS: Address setup time in nanoseconds.
> -- ingenic,nemc-tAH: Address hold time in nanoseconds.
> -- ingenic,nemc-tBP: Burst pitch time in nanoseconds.
> -- ingenic,nemc-tAW: Access wait time in nanoseconds.
> -- ingenic,nemc-tSTRV: Static memory recovery time in nanoseconds.
> -
> -If a child node references multiple banks in its "reg" property, the same value
> -for all optional parameters will be configured for all banks. If any optional
> -parameters are omitted, they will be left unchanged from whatever they are
> -configured to when the NEMC device is probed (which may be the reset value as
> -given in the hardware reference manual, or a value configured by the boot
> -loader).
> -
> -Example (NEMC node with a NAND child device attached at CS1):
> -
> -nemc: nemc@13410000 {
> -	compatible = "ingenic,jz4780-nemc";
> -	reg = <0x13410000 0x10000>;
> -
> -	#address-cells = <2>;
> -	#size-cells = <1>;
> -
> -	ranges = <1 0 0x1b000000 0x1000000
> -		  2 0 0x1a000000 0x1000000
> -		  3 0 0x19000000 0x1000000
> -		  4 0 0x18000000 0x1000000
> -		  5 0 0x17000000 0x1000000
> -		  6 0 0x16000000 0x1000000>;
> -
> -	clocks = <&cgu JZ4780_CLK_NEMC>;
> -
> -	nand: nand@1 {
> -		compatible = "ingenic,jz4780-nand";
> -		reg = <1 0 0x1000000>;
> -
> -		ingenic,nemc-tAS = <10>;
> -		ingenic,nemc-tAH = <5>;
> -		ingenic,nemc-tBP = <10>;
> -		ingenic,nemc-tAW = <15>;
> -		ingenic,nemc-tSTRV = <100>;
> -
> -		...
> -	};
> -};
> diff --git a/Documentation/devicetree/bindings/memory-controllers/ingenic,nemc-client.yaml b/Documentation/devicetree/bindings/memory-controllers/ingenic,nemc-client.yaml
> new file mode 100644
> index 000000000000..682e6f7e74fa
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/memory-controllers/ingenic,nemc-client.yaml
> @@ -0,0 +1,45 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/memory-controllers/ingenic,nemc-client.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title:
> +  Ingenic SoCs NAND / External Memory Controller (NEMC)
> +  client-specific properties
> +
> +maintainers:
> +  - Paul Cercueil <paul@crapouillou.net>
> +
> +description:
> +  This document lists the various properties that child nodes of the NEMC node
> +  can use.
> +
> +properties:

What about 'reg'? That should be required.

> +  ingenic,nemc-bus-width:
> +    allOf:
> +      - $ref: /schemas/types.yaml#/definitions/uint32
> +      - enum: [8, 16]
> +    description: Specifies the bus width in bits.
> +
> +  ingenic,nemc-tAS:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    description: Address setup time in nanoseconds.
> +
> +  ingenic,nemc-tAH:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    description: Address hold time in nanoseconds.
> +
> +  ingenic,nemc-tBP:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    description: Burst pitch time in nanoseconds.
> +
> +  ingenic,nemc-tAW:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    description: Address wait time in nanoseconds.
> +
> +  ingenic,nemc-tSTRV:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    description: Static memory recovery time in nanoseconds.

I think I'd just combine this into 1 file.

> +
> +...
> diff --git a/Documentation/devicetree/bindings/memory-controllers/ingenic,nemc.yaml b/Documentation/devicetree/bindings/memory-controllers/ingenic,nemc.yaml
> new file mode 100644
> index 000000000000..c7fd28462fd8
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/memory-controllers/ingenic,nemc.yaml
> @@ -0,0 +1,95 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/memory-controllers/ingenic,nemc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Ingenic SoCs NAND / External Memory Controller (NEMC) devicetree bindings
> +
> +maintainers:
> +  - Paul Cercueil <paul@crapouillou.net>
> +
> +properties:
> +  $nodename:
> +    pattern: "^memory-controller@[0-9a-f]+$"
> +
> +  compatible:
> +    oneOf:
> +      - enum:
> +        - ingenic,jz4740-nemc
> +        - ingenic,jz4780-nemc
> +      - items:
> +        - const: ingenic,jz4725b-nemc
> +        - const: ingenic,jz4740-nemc
> +
> +  "#address-cells":
> +    const: 2
> +
> +  "#size-cells":
> +    const: 1
> +
> +  ranges: true
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +patternProperties:
> +  "^(nand-controller|ethernet)@[0-9]+$":

Presumably you could have other types of child nodes?

> +    type: object
> +    allOf:
> +      - $ref: ingenic,nemc-client.yaml#
> +
> +required:
> +  - compatible
> +  - "#address-cells"
> +  - "#size-cells"
> +  - ranges
> +  - reg
> +  - clocks
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/jz4780-cgu.h>
> +    #include <dt-bindings/gpio/gpio.h>
> +    nemc: memory-controller@13410000 {
> +      compatible = "ingenic,jz4780-nemc";
> +      reg = <0x13410000 0x10000>;
> +      #address-cells = <2>;
> +      #size-cells = <1>;
> +      ranges = <1 0 0x1b000000 0x1000000>,
> +         <2 0 0x1a000000 0x1000000>,
> +         <3 0 0x19000000 0x1000000>,
> +         <4 0 0x18000000 0x1000000>,
> +         <5 0 0x17000000 0x1000000>,
> +         <6 0 0x16000000 0x1000000>;
> +
> +      clocks = <&cgu JZ4780_CLK_NEMC>;
> +
> +      ethernet@6 {
> +        compatible = "davicom,dm9000";
> +        davicom,no-eeprom;
> +
> +        pinctrl-names = "default";
> +        pinctrl-0 = <&pins_nemc_cs6>;
> +
> +        reg = <6 0 1>, /* addr */
> +              <6 2 1>; /* data */
> +
> +        ingenic,nemc-tAS = <15>;
> +        ingenic,nemc-tAH = <10>;
> +        ingenic,nemc-tBP = <20>;
> +        ingenic,nemc-tAW = <50>;
> +        ingenic,nemc-tSTRV = <100>;
> +
> +        reset-gpios = <&gpf 12 GPIO_ACTIVE_HIGH>;
> +        vcc-supply = <&eth0_power>;
> +
> +        interrupt-parent = <&gpe>;
> +        interrupts = <19 4>;
> +      };
> +    };
> -- 
> 2.26.2
>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/memory-controllers/ingenic,jz4780-nemc.txt b/Documentation/devicetree/bindings/memory-controllers/ingenic,jz4780-nemc.txt
deleted file mode 100644
index 59b8dcc118ee..000000000000
--- a/Documentation/devicetree/bindings/memory-controllers/ingenic,jz4780-nemc.txt
+++ /dev/null
@@ -1,76 +0,0 @@ 
-* Ingenic JZ4780 NAND/external memory controller (NEMC)
-
-This file documents the device tree bindings for the NEMC external memory
-controller in Ingenic JZ4780
-
-Required properties:
-- compatible: Should be set to one of:
-    "ingenic,jz4740-nemc" (JZ4740)
-    "ingenic,jz4780-nemc" (JZ4780)
-- reg: Should specify the NEMC controller registers location and length.
-- clocks: Clock for the NEMC controller.
-- #address-cells: Must be set to 2.
-- #size-cells: Must be set to 1.
-- ranges: A set of ranges for each bank describing the physical memory layout.
-  Each should specify the following 4 integer values:
-
-    <cs number> 0 <physical address of mapping> <size of mapping>
-
-Each child of the NEMC node describes a device connected to the NEMC.
-
-Required child node properties:
-- reg: Should contain at least one register specifier, given in the following
-  format:
-
-    <cs number> <offset> <size>
-
-  Multiple registers can be specified across multiple banks. This is needed,
-  for example, for packaged NAND devices with multiple dies. Such devices
-  should be grouped into a single node.
-
-Optional child node properties:
-- ingenic,nemc-bus-width: Specifies the bus width in bits. Defaults to 8 bits.
-- ingenic,nemc-tAS: Address setup time in nanoseconds.
-- ingenic,nemc-tAH: Address hold time in nanoseconds.
-- ingenic,nemc-tBP: Burst pitch time in nanoseconds.
-- ingenic,nemc-tAW: Access wait time in nanoseconds.
-- ingenic,nemc-tSTRV: Static memory recovery time in nanoseconds.
-
-If a child node references multiple banks in its "reg" property, the same value
-for all optional parameters will be configured for all banks. If any optional
-parameters are omitted, they will be left unchanged from whatever they are
-configured to when the NEMC device is probed (which may be the reset value as
-given in the hardware reference manual, or a value configured by the boot
-loader).
-
-Example (NEMC node with a NAND child device attached at CS1):
-
-nemc: nemc@13410000 {
-	compatible = "ingenic,jz4780-nemc";
-	reg = <0x13410000 0x10000>;
-
-	#address-cells = <2>;
-	#size-cells = <1>;
-
-	ranges = <1 0 0x1b000000 0x1000000
-		  2 0 0x1a000000 0x1000000
-		  3 0 0x19000000 0x1000000
-		  4 0 0x18000000 0x1000000
-		  5 0 0x17000000 0x1000000
-		  6 0 0x16000000 0x1000000>;
-
-	clocks = <&cgu JZ4780_CLK_NEMC>;
-
-	nand: nand@1 {
-		compatible = "ingenic,jz4780-nand";
-		reg = <1 0 0x1000000>;
-
-		ingenic,nemc-tAS = <10>;
-		ingenic,nemc-tAH = <5>;
-		ingenic,nemc-tBP = <10>;
-		ingenic,nemc-tAW = <15>;
-		ingenic,nemc-tSTRV = <100>;
-
-		...
-	};
-};
diff --git a/Documentation/devicetree/bindings/memory-controllers/ingenic,nemc-client.yaml b/Documentation/devicetree/bindings/memory-controllers/ingenic,nemc-client.yaml
new file mode 100644
index 000000000000..682e6f7e74fa
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/ingenic,nemc-client.yaml
@@ -0,0 +1,45 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/memory-controllers/ingenic,nemc-client.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title:
+  Ingenic SoCs NAND / External Memory Controller (NEMC)
+  client-specific properties
+
+maintainers:
+  - Paul Cercueil <paul@crapouillou.net>
+
+description:
+  This document lists the various properties that child nodes of the NEMC node
+  can use.
+
+properties:
+  ingenic,nemc-bus-width:
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+      - enum: [8, 16]
+    description: Specifies the bus width in bits.
+
+  ingenic,nemc-tAS:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Address setup time in nanoseconds.
+
+  ingenic,nemc-tAH:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Address hold time in nanoseconds.
+
+  ingenic,nemc-tBP:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Burst pitch time in nanoseconds.
+
+  ingenic,nemc-tAW:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Address wait time in nanoseconds.
+
+  ingenic,nemc-tSTRV:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: Static memory recovery time in nanoseconds.
+
+...
diff --git a/Documentation/devicetree/bindings/memory-controllers/ingenic,nemc.yaml b/Documentation/devicetree/bindings/memory-controllers/ingenic,nemc.yaml
new file mode 100644
index 000000000000..c7fd28462fd8
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/ingenic,nemc.yaml
@@ -0,0 +1,95 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/memory-controllers/ingenic,nemc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Ingenic SoCs NAND / External Memory Controller (NEMC) devicetree bindings
+
+maintainers:
+  - Paul Cercueil <paul@crapouillou.net>
+
+properties:
+  $nodename:
+    pattern: "^memory-controller@[0-9a-f]+$"
+
+  compatible:
+    oneOf:
+      - enum:
+        - ingenic,jz4740-nemc
+        - ingenic,jz4780-nemc
+      - items:
+        - const: ingenic,jz4725b-nemc
+        - const: ingenic,jz4740-nemc
+
+  "#address-cells":
+    const: 2
+
+  "#size-cells":
+    const: 1
+
+  ranges: true
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+patternProperties:
+  "^(nand-controller|ethernet)@[0-9]+$":
+    type: object
+    allOf:
+      - $ref: ingenic,nemc-client.yaml#
+
+required:
+  - compatible
+  - "#address-cells"
+  - "#size-cells"
+  - ranges
+  - reg
+  - clocks
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/jz4780-cgu.h>
+    #include <dt-bindings/gpio/gpio.h>
+    nemc: memory-controller@13410000 {
+      compatible = "ingenic,jz4780-nemc";
+      reg = <0x13410000 0x10000>;
+      #address-cells = <2>;
+      #size-cells = <1>;
+      ranges = <1 0 0x1b000000 0x1000000>,
+         <2 0 0x1a000000 0x1000000>,
+         <3 0 0x19000000 0x1000000>,
+         <4 0 0x18000000 0x1000000>,
+         <5 0 0x17000000 0x1000000>,
+         <6 0 0x16000000 0x1000000>;
+
+      clocks = <&cgu JZ4780_CLK_NEMC>;
+
+      ethernet@6 {
+        compatible = "davicom,dm9000";
+        davicom,no-eeprom;
+
+        pinctrl-names = "default";
+        pinctrl-0 = <&pins_nemc_cs6>;
+
+        reg = <6 0 1>, /* addr */
+              <6 2 1>; /* data */
+
+        ingenic,nemc-tAS = <15>;
+        ingenic,nemc-tAH = <10>;
+        ingenic,nemc-tBP = <20>;
+        ingenic,nemc-tAW = <50>;
+        ingenic,nemc-tSTRV = <100>;
+
+        reset-gpios = <&gpf 12 GPIO_ACTIVE_HIGH>;
+        vcc-supply = <&eth0_power>;
+
+        interrupt-parent = <&gpe>;
+        interrupts = <19 4>;
+      };
+    };