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Message-Id: <20220211120157.3385145-1-clabbe@baylibre.com>
Date: Fri, 11 Feb 2022 12:01:57 +0000
From: Corentin Labbe <clabbe@...libre.com>
To: damien.lemoal@...nsource.wdc.com,
krzysztof.kozlowski@...onical.com, robh+dt@...nel.org
Cc: devicetree@...r.kernel.org, linux-ide@...r.kernel.org,
linux-kernel@...r.kernel.org, Corentin Labbe <clabbe@...libre.com>,
Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH v4] dt-bindings: convert ata/cortina,gemini-sata-bridge to yaml
This patch converts ata/cortina,gemini-sata-bridge binding to yaml
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
Acked-by: Damien Le Moal <damien.lemoal@...nsource.wdc.com>
Signed-off-by: Corentin Labbe <clabbe@...libre.com>
---
Change since v1:
- fixed cosmetic nits reported by Damien Le Moal
Changes since v2:
- Added blank lines between properties
- Removed useless quotes and label
- Re-indented description
Change since v3:
- removed MaxItems from syscon
.../ata/cortina,gemini-sata-bridge.txt | 55 ---------
.../ata/cortina,gemini-sata-bridge.yaml | 109 ++++++++++++++++++
2 files changed, 109 insertions(+), 55 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.txt
create mode 100644 Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.yaml
diff --git a/Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.txt b/Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.txt
deleted file mode 100644
index 1c3d3cc70051..000000000000
--- a/Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.txt
+++ /dev/null
@@ -1,55 +0,0 @@
-* Cortina Systems Gemini SATA Bridge
-
-The Gemini SATA bridge in a SoC-internal PATA to SATA bridge that
-takes two Faraday Technology FTIDE010 PATA controllers and bridges
-them in different configurations to two SATA ports.
-
-Required properties:
-- compatible: should be
- "cortina,gemini-sata-bridge"
-- reg: registers and size for the block
-- resets: phandles to the reset lines for both SATA bridges
-- reset-names: must be "sata0", "sata1"
-- clocks: phandles to the compulsory peripheral clocks
-- clock-names: must be "SATA0_PCLK", "SATA1_PCLK"
-- syscon: a phandle to the global Gemini system controller
-- cortina,gemini-ata-muxmode: tell the desired multiplexing mode for
- the ATA controller and SATA bridges. Values 0..3:
- Mode 0: ata0 master <-> sata0
- ata1 master <-> sata1
- ata0 slave interface brought out on IDE pads
- Mode 1: ata0 master <-> sata0
- ata1 master <-> sata1
- ata1 slave interface brought out on IDE pads
- Mode 2: ata1 master <-> sata1
- ata1 slave <-> sata0
- ata0 master and slave interfaces brought out
- on IDE pads
- Mode 3: ata0 master <-> sata0
- ata0 slave <-> sata1
- ata1 master and slave interfaces brought out
- on IDE pads
-
-Optional boolean properties:
-- cortina,gemini-enable-ide-pins: enables the PATA to IDE connection.
- The muxmode setting decides whether ATA0 or ATA1 is brought out,
- and whether master, slave or both interfaces get brought out.
-- cortina,gemini-enable-sata-bridge: enables the PATA to SATA bridge
- inside the Gemnini SoC. The Muxmode decides what PATA blocks will
- be muxed out and how.
-
-Example:
-
-sata: sata@...00000 {
- compatible = "cortina,gemini-sata-bridge";
- reg = <0x46000000 0x100>;
- resets = <&rcon 26>, <&rcon 27>;
- reset-names = "sata0", "sata1";
- clocks = <&gcc GEMINI_CLK_GATE_SATA0>,
- <&gcc GEMINI_CLK_GATE_SATA1>;
- clock-names = "SATA0_PCLK", "SATA1_PCLK";
- syscon = <&syscon>;
- cortina,gemini-ata-muxmode = <3>;
- cortina,gemini-enable-ide-pins;
- cortina,gemini-enable-sata-bridge;
-};
diff --git a/Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.yaml b/Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.yaml
new file mode 100644
index 000000000000..21a90975593b
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.yaml
@@ -0,0 +1,109 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/cortina,gemini-sata-bridge.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cortina Systems Gemini SATA Bridge
+
+maintainers:
+ - Linus Walleij <linus.walleij@...aro.org>
+
+description: |
+ The Gemini SATA bridge in a SoC-internal PATA to SATA bridge that
+ takes two Faraday Technology FTIDE010 PATA controllers and bridges
+ them in different configurations to two SATA ports.
+
+properties:
+ compatible:
+ const: cortina,gemini-sata-bridge
+
+ reg:
+ maxItems: 1
+
+ resets:
+ minItems: 2
+ maxItems: 2
+ description: phandles to the reset lines for both SATA bridges
+
+ reset-names:
+ items:
+ - const: sata0
+ - const: sata1
+
+ clocks:
+ minItems: 2
+ maxItems: 2
+ description: phandles to the compulsory peripheral clocks
+
+ clock-names:
+ items:
+ - const: SATA0_PCLK
+ - const: SATA1_PCLK
+
+ syscon:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: a phandle to the global Gemini system controller
+
+ cortina,gemini-ata-muxmode:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum:
+ - 0
+ - 1
+ - 2
+ - 3
+ description: |
+ Tell the desired multiplexing mode for the ATA controller and SATA
+ bridges.
+ Mode 0: ata0 master <-> sata0
+ ata1 master <-> sata1
+ ata0 slave interface brought out on IDE pads
+ Mode 1: ata0 master <-> sata0
+ ata1 master <-> sata1
+ ata1 slave interface brought out on IDE pads
+ Mode 2: ata1 master <-> sata1
+ ata1 slave <-> sata0
+ ata0 master and slave interfaces brought out on IDE pads
+ Mode 3: ata0 master <-> sata0
+ ata0 slave <-> sata1
+ ata1 master and slave interfaces brought out on IDE pads
+
+ cortina,gemini-enable-ide-pins:
+ type: boolean
+ description: Enables the PATA to IDE connection.
+ The muxmode setting decides whether ATA0 or ATA1 is brought out,
+ and whether master, slave or both interfaces get brought out.
+
+ cortina,gemini-enable-sata-bridge:
+ type: boolean
+ description: Enables the PATA to SATA bridge inside the Gemnini SoC.
+ The Muxmode decides what PATA blocks will be muxed out and how.
+
+required:
+ - clocks
+ - clock-names
+ - cortina,gemini-ata-muxmode
+ - resets
+ - reset-names
+ - compatible
+ - reg
+ - syscon
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/cortina,gemini-clock.h>
+ sata@...00000 {
+ compatible = "cortina,gemini-sata-bridge";
+ reg = <0x46000000 0x100>;
+ resets = <&rcon 26>, <&rcon 27>;
+ reset-names = "sata0", "sata1";
+ clocks = <&gcc GEMINI_CLK_GATE_SATA0>,
+ <&gcc GEMINI_CLK_GATE_SATA1>;
+ clock-names = "SATA0_PCLK", "SATA1_PCLK";
+ syscon = <&syscon>;
+ cortina,gemini-ata-muxmode = <3>;
+ cortina,gemini-enable-ide-pins;
+ cortina,gemini-enable-sata-bridge;
+ };
--
2.34.1
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