2020-08-28 16:03:10

by Sagar Shrikant Kadam

[permalink] [raw]
Subject: [PATCH v2] convert l2 cache dt bindings to YAML format

This patch is created and tested on top of mainline linux
commit d012a7190fc1 ("Linux 5.9-rc2")

Reference log of "make dt_binding_check" is available here[1].

I was able to reproduce the error after excluding the DT_SCHEMA_FILES
option. Just in case required the failure log is here[2].

[1] https://paste.ubuntu.com/p/R5b52vCkKJ/
[2] https://paste.ubuntu.com/p/gwYY3hd9Rx/

Change History:
====================
V2:
-Fixed bot failure mentioned by Rob Herring
-Updated dt-schema and kernel as suggested

V1:
Base version

Sagar Kadam (1):
dt-bindings: riscv: sifive-l2-cache: convert bindings to json-schema

.../devicetree/bindings/riscv/sifive-l2-cache.txt | 51 ------------
.../devicetree/bindings/riscv/sifive-l2-cache.yaml | 92 ++++++++++++++++++++++
2 files changed, 92 insertions(+), 51 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/riscv/sifive-l2-cache.txt
create mode 100644 Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml

--
2.7.4


2020-08-28 16:03:29

by Sagar Shrikant Kadam

[permalink] [raw]
Subject: [PATCH v2] dt-bindings: riscv: sifive-l2-cache: convert bindings to json-schema

Convert the device tree bindings for the SiFive's FU540-C000 SoC's L2 Cache
controller to YAML format.

Signed-off-by: Sagar Kadam <[email protected]>
---
.../devicetree/bindings/riscv/sifive-l2-cache.txt | 51 ------------
.../devicetree/bindings/riscv/sifive-l2-cache.yaml | 92 ++++++++++++++++++++++
2 files changed, 92 insertions(+), 51 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/riscv/sifive-l2-cache.txt
create mode 100644 Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml

diff --git a/Documentation/devicetree/bindings/riscv/sifive-l2-cache.txt b/Documentation/devicetree/bindings/riscv/sifive-l2-cache.txt
deleted file mode 100644
index 73d8f19..0000000
--- a/Documentation/devicetree/bindings/riscv/sifive-l2-cache.txt
+++ /dev/null
@@ -1,51 +0,0 @@
-SiFive L2 Cache Controller
---------------------------
-The SiFive Level 2 Cache Controller is used to provide access to fast copies
-of memory for masters in a Core Complex. The Level 2 Cache Controller also
-acts as directory-based coherency manager.
-All the properties in ePAPR/DeviceTree specification applies for this platform
-
-Required Properties:
---------------------
-- compatible: Should be "sifive,fu540-c000-ccache" and "cache"
-
-- cache-block-size: Specifies the block size in bytes of the cache.
- Should be 64
-
-- cache-level: Should be set to 2 for a level 2 cache
-
-- cache-sets: Specifies the number of associativity sets of the cache.
- Should be 1024
-
-- cache-size: Specifies the size in bytes of the cache. Should be 2097152
-
-- cache-unified: Specifies the cache is a unified cache
-
-- interrupts: Must contain 3 entries (DirError, DataError and DataFail signals)
-
-- reg: Physical base address and size of L2 cache controller registers map
-
-Optional Properties:
---------------------
-- next-level-cache: phandle to the next level cache if present.
-
-- memory-region: reference to the reserved-memory for the L2 Loosely Integrated
- Memory region. The reserved memory node should be defined as per the bindings
- in reserved-memory.txt
-
-
-Example:
-
- cache-controller@2010000 {
- compatible = "sifive,fu540-c000-ccache", "cache";
- cache-block-size = <64>;
- cache-level = <2>;
- cache-sets = <1024>;
- cache-size = <2097152>;
- cache-unified;
- interrupt-parent = <&plic0>;
- interrupts = <1 2 3>;
- reg = <0x0 0x2010000 0x0 0x1000>;
- next-level-cache = <&L25 &L40 &L36>;
- memory-region = <&l2_lim>;
- };
diff --git a/Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml b/Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml
new file mode 100644
index 0000000..e14c8c6
--- /dev/null
+++ b/Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml
@@ -0,0 +1,92 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright (C) 2020 SiFive, Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/riscv/sifive-l2-cache.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SiFive L2 Cache Controller
+
+maintainers:
+ - Sagar Kadam <[email protected]>
+ - Yash Shah <[email protected]>
+ - Paul Walmsley <[email protected]>
+
+description:
+ The SiFive Level 2 Cache Controller is used to provide access to fast copies
+ of memory for masters in a Core Complex. The Level 2 Cache Controller also
+ acts as directory-based coherency manager.
+ All the properties in ePAPR/DeviceTree specification applies for this platform.
+
+allOf:
+ - $ref: /schemas/cache-controller.yaml#
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - sifive,fu540-c000-ccache
+ description: |
+ Should have "sifive,<soc>-cache" and "cache".
+
+ cache-block-size:
+ const: 64
+
+ cache-level:
+ const: 2
+
+ cache-sets:
+ const: 1024
+
+ cache-size:
+ const: 2097152
+
+ cache-unified: true
+
+ interrupts:
+ description: |
+ Must contain entries for DirError, DataError and DataFail signals.
+ minItems: 1
+ maxItems: 3
+
+ reg:
+ maxItems: 1
+ description: address of cache controller's registers.
+
+
+ next-level-cache:
+ description: |
+ Phandle to the next level cache if present.
+
+ memory-region:
+ description: |
+ The reference to the reserved-memory for the L2 Loosely Integrated memory region.
+ The reserved memory node should be defined as per the bindings in reserved-memory.txt.
+
+additionalProperties: false
+
+required:
+ - compatible
+ - cache-block-size
+ - cache-level
+ - cache-sets
+ - cache-size
+ - cache-unified
+ - interrupts
+ - reg
+
+examples:
+ - |
+ cache-controller@2010000 {
+ compatible = "sifive,fu540-c000-ccache";
+ cache-block-size = <64>;
+ cache-level = <2>;
+ cache-sets = <1024>;
+ cache-size = <2097152>;
+ cache-unified;
+ reg = <0x2010000 0x1000>;
+ interrupt-parent = <&plic0>;
+ interrupts = <1 2 3>;
+ next-level-cache = <&L25>;
+ memory-region = <&l2_lim>;
+ };
--
2.7.4

2020-08-28 16:51:11

by Sagar Kadam

[permalink] [raw]
Subject: RE: [PATCH v2] dt-bindings: riscv: sifive-l2-cache: convert bindings to json-schema

Hi,

Please ignore this v2, since the subject line missed the patch sequences 0/1 and 1/1.
Will resubmit it.

Thanks & BR,
Sagar

> -----Original Message-----
> From: Sagar Kadam <[email protected]>
> Sent: Friday, August 28, 2020 9:31 PM
> To: [email protected]
> Cc: [email protected]; [email protected];
> [email protected]; Paul Walmsley ( Sifive) <[email protected]>;
> [email protected]; [email protected]; Yash Shah
> <[email protected]>; Sagar Kadam <[email protected]>
> Subject: [PATCH v2] dt-bindings: riscv: sifive-l2-cache: convert bindings to
> json-schema
>
> Convert the device tree bindings for the SiFive's FU540-C000 SoC's L2 Cache
> controller to YAML format.
>
> Signed-off-by: Sagar Kadam <[email protected]>
> ---
> .../devicetree/bindings/riscv/sifive-l2-cache.txt | 51 ------------
> .../devicetree/bindings/riscv/sifive-l2-cache.yaml | 92
> ++++++++++++++++++++++
> 2 files changed, 92 insertions(+), 51 deletions(-) delete mode 100644
> Documentation/devicetree/bindings/riscv/sifive-l2-cache.txt
> create mode 100644 Documentation/devicetree/bindings/riscv/sifive-l2-
> cache.yaml
>
> diff --git a/Documentation/devicetree/bindings/riscv/sifive-l2-cache.txt
> b/Documentation/devicetree/bindings/riscv/sifive-l2-cache.txt
> deleted file mode 100644
> index 73d8f19..0000000
> --- a/Documentation/devicetree/bindings/riscv/sifive-l2-cache.txt
> +++ /dev/null
> @@ -1,51 +0,0 @@
> -SiFive L2 Cache Controller
> ---------------------------
> -The SiFive Level 2 Cache Controller is used to provide access to fast copies -
> of memory for masters in a Core Complex. The Level 2 Cache Controller also
> -acts as directory-based coherency manager.
> -All the properties in ePAPR/DeviceTree specification applies for this
> platform
> -
> -Required Properties:
> ---------------------
> -- compatible: Should be "sifive,fu540-c000-ccache" and "cache"
> -
> -- cache-block-size: Specifies the block size in bytes of the cache.
> - Should be 64
> -
> -- cache-level: Should be set to 2 for a level 2 cache
> -
> -- cache-sets: Specifies the number of associativity sets of the cache.
> - Should be 1024
> -
> -- cache-size: Specifies the size in bytes of the cache. Should be 2097152
> -
> -- cache-unified: Specifies the cache is a unified cache
> -
> -- interrupts: Must contain 3 entries (DirError, DataError and DataFail
> signals)
> -
> -- reg: Physical base address and size of L2 cache controller registers map
> -
> -Optional Properties:
> ---------------------
> -- next-level-cache: phandle to the next level cache if present.
> -
> -- memory-region: reference to the reserved-memory for the L2 Loosely
> Integrated
> - Memory region. The reserved memory node should be defined as per the
> bindings
> - in reserved-memory.txt
> -
> -
> -Example:
> -
> - cache-controller@2010000 {
> - compatible = "sifive,fu540-c000-ccache", "cache";
> - cache-block-size = <64>;
> - cache-level = <2>;
> - cache-sets = <1024>;
> - cache-size = <2097152>;
> - cache-unified;
> - interrupt-parent = <&plic0>;
> - interrupts = <1 2 3>;
> - reg = <0x0 0x2010000 0x0 0x1000>;
> - next-level-cache = <&L25 &L40 &L36>;
> - memory-region = <&l2_lim>;
> - };
> diff --git a/Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml
> b/Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml
> new file mode 100644
> index 0000000..e14c8c6
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml
> @@ -0,0 +1,92 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) # Copyright (C)
> +2020 SiFive, Inc.
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/riscv/sifive-l2-cache.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: SiFive L2 Cache Controller
> +
> +maintainers:
> + - Sagar Kadam <[email protected]>
> + - Yash Shah <[email protected]>
> + - Paul Walmsley <[email protected]>
> +
> +description:
> + The SiFive Level 2 Cache Controller is used to provide access to fast
> +copies
> + of memory for masters in a Core Complex. The Level 2 Cache Controller
> +also
> + acts as directory-based coherency manager.
> + All the properties in ePAPR/DeviceTree specification applies for this
> platform.
> +
> +allOf:
> + - $ref: /schemas/cache-controller.yaml#
> +
> +properties:
> + compatible:
> + items:
> + - enum:
> + - sifive,fu540-c000-ccache
> + description: |
> + Should have "sifive,<soc>-cache" and "cache".
> +
> + cache-block-size:
> + const: 64
> +
> + cache-level:
> + const: 2
> +
> + cache-sets:
> + const: 1024
> +
> + cache-size:
> + const: 2097152
> +
> + cache-unified: true
> +
> + interrupts:
> + description: |
> + Must contain entries for DirError, DataError and DataFail signals.
> + minItems: 1
> + maxItems: 3
> +
> + reg:
> + maxItems: 1
> + description: address of cache controller's registers.
> +
> +
> + next-level-cache:
> + description: |
> + Phandle to the next level cache if present.
> +
> + memory-region:
> + description: |
> + The reference to the reserved-memory for the L2 Loosely Integrated
> memory region.
> + The reserved memory node should be defined as per the bindings in
> reserved-memory.txt.
> +
> +additionalProperties: false
> +
> +required:
> + - compatible
> + - cache-block-size
> + - cache-level
> + - cache-sets
> + - cache-size
> + - cache-unified
> + - interrupts
> + - reg
> +
> +examples:
> + - |
> + cache-controller@2010000 {
> + compatible = "sifive,fu540-c000-ccache";
> + cache-block-size = <64>;
> + cache-level = <2>;
> + cache-sets = <1024>;
> + cache-size = <2097152>;
> + cache-unified;
> + reg = <0x2010000 0x1000>;
> + interrupt-parent = <&plic0>;
> + interrupts = <1 2 3>;
> + next-level-cache = <&L25>;
> + memory-region = <&l2_lim>;
> + };
> --
> 2.7.4