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Message-Id: <20231218-mbly-clk-v1-2-44ce54108f06@bootlin.com>
Date: Mon, 18 Dec 2023 18:14:17 +0100
From: Théo Lebrun <theo.lebrun@...tlin.com>
To: Gregory CLEMENT <gregory.clement@...tlin.com>,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc: Vladimir Kondratiev <vladimir.kondratiev@...ileye.com>,
linux-mips@...r.kernel.org, linux-clk@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
Tawfik Bayouk <tawfik.bayouk@...ileye.com>,
Théo Lebrun <theo.lebrun@...tlin.com>
Subject: [PATCH 2/5] dt-bindings: clock: mobileye,eyeq5-clk: add bindings
Add DT schema bindings for the EyeQ5 clock controller driver.
Signed-off-by: Théo Lebrun <theo.lebrun@...tlin.com>
---
.../bindings/clock/mobileye,eyeq5-clk.yaml | 83 ++++++++++++++++++++++
MAINTAINERS | 2 +
include/dt-bindings/clock/mobileye,eyeq5-clk.h | 22 ++++++
3 files changed, 107 insertions(+)
diff --git a/Documentation/devicetree/bindings/clock/mobileye,eyeq5-clk.yaml b/Documentation/devicetree/bindings/clock/mobileye,eyeq5-clk.yaml
new file mode 100644
index 000000000000..d56482a06bf1
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/mobileye,eyeq5-clk.yaml
@@ -0,0 +1,83 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/mobileye,eyeq5-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mobileye EyeQ5 clock controller
+
+description:
+ The EyeQ5 clock controller handles 10 read-only PLLs derived from the main
+ crystal clock. It also exposes one divider clock, a child of one of the PLLs.
+ It is custom to this platform, its registers live in a shared region called
+ OLB.
+
+maintainers:
+ - Grégory Clement <gregory.clement@...tlin.com>
+ - Théo Lebrun <theo.lebrun@...tlin.com>
+ - Vladimir Kondratiev <vladimir.kondratiev@...ileye.com>
+
+properties:
+ $nodename:
+ pattern: "^clocks$"
+ description:
+ We have no unique address, we rely on OLB.
+
+ compatible:
+ const: mobileye,eyeq5-clk
+
+ "#clock-cells":
+ const: 1
+
+ clocks:
+ maxItems: 1
+ description:
+ Input parent clock to all PLLs. Expected to be the main crystal.
+
+ clock-names:
+ items:
+ - const: ref
+
+ mobileye,olb:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ A phandle to the OLB syscon. This is a fallback to using the parent as
+ syscon node.
+
+required:
+ - compatible
+ - "#clock-cells"
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ olb@...000 {
+ compatible = "mobileye,eyeq5-olb", "syscon", "simple-mfd";
+ reg = <0xe00000 0x400>;
+ reg-io-width = <4>;
+
+ clocks {
+ compatible = "mobileye,eyeq5-clk";
+ #clock-cells = <1>;
+ clocks = <&xtal>;
+ clock-names = "ref";
+ };
+ };
+
+ - |
+ olb: olb@...000 {
+ compatible = "mobileye,eyeq5-olb", "syscon", "simple-mfd";
+ reg = <0xe00000 0x400>;
+ reg-io-width = <4>;
+ };
+
+ clocks {
+ compatible = "mobileye,eyeq5-clk";
+ mobileye,olb = <&olb>;
+ #clock-cells = <1>;
+ clocks = <&xtal>;
+ clock-names = "ref";
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 4a7bd6b40d74..7f04fa760a4d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -14552,10 +14552,12 @@ M: Gregory CLEMENT <gregory.clement@...tlin.com>
M: Théo Lebrun <theo.lebrun@...tlin.com>
L: linux-mips@...r.kernel.org
S: Maintained
+F: Documentation/devicetree/bindings/clock/mobileye,eyeq5-clk.yaml
F: Documentation/devicetree/bindings/mips/mobileye.yaml
F: arch/mips/boot/dts/mobileye/
F: arch/mips/configs/generic/board-eyeq5.config
F: arch/mips/generic/board-epm5.its.S
+F: include/dt-bindings/clock/mobileye,eyeq5-clk.h
F: include/dt-bindings/soc/mobileye,eyeq5.h
MODULE SUPPORT
diff --git a/include/dt-bindings/clock/mobileye,eyeq5-clk.h b/include/dt-bindings/clock/mobileye,eyeq5-clk.h
new file mode 100644
index 000000000000..7aa974354bb6
--- /dev/null
+++ b/include/dt-bindings/clock/mobileye,eyeq5-clk.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Copyright (C) 2023 Mobileye Vision Technologies Ltd.
+ */
+
+#ifndef _DT_BINDINGS_CLOCK_MOBILEYE_EYEQ5_CLK_H
+#define _DT_BINDINGS_CLOCK_MOBILEYE_EYEQ5_CLK_H
+
+#define EQ5C_PLL_CPU 0
+#define EQ5C_PLL_VMP 1
+#define EQ5C_PLL_PMA 2
+#define EQ5C_PLL_VDI 3
+#define EQ5C_PLL_DDR0 4
+#define EQ5C_PLL_PCI 5
+#define EQ5C_PLL_PER 6
+#define EQ5C_PLL_PMAC 7
+#define EQ5C_PLL_MPC 8
+#define EQ5C_PLL_DDR1 9
+
+#define EQ5C_DIV_OSPI 10
+
+#endif
--
2.43.0
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