dt-bindings: soc: mobileye: Add EyeQ6Lplus OLB

The "Other Logic Block" found in the EyeQ6Lplus from Mobileye provides
various functions for the controllers present in the SoC.

The OLB produces 22 clocks derived from its input, which is connected
to the main oscillator of the SoC.

It provides reset signals via two reset domains.

It also controls 32 pins to be either a GPIO or an alternate function.

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Benoît Monin <benoit.monin@bootlin.com>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

diff --git a/Documentation/devicetree/bindings/soc/mobileye/mobileye,eyeq6lplus-olb.yaml b/Documentation/devicetree/bindings/soc/mobileye/mobileye,eyeq6lplus-olb.yaml
new file mode 100644 (file)
index 0000000..8334876
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/mobileye/mobileye,eyeq6lplus-olb.yaml
@@ -0,0 +1,208 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/mobileye/mobileye,eyeq6lplus-olb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mobileye EyeQ6Lplus SoC system controller
+
+maintainers:
+  - Benoît Monin <benoit.monin@bootlin.com>
+  - Grégory Clement <gregory.clement@bootlin.com>
+  - Théo Lebrun <theo.lebrun@bootlin.com>
+  - Vladimir Kondratiev <vladimir.kondratiev@mobileye.com>
+
+description:
+  OLB ("Other Logic Block") is a hardware block grouping smaller blocks.
+  Clocks, resets, pinctrl are being handled from here. EyeQ6Lplus hosts
+  a single instance providing 22 clocks, two reset domains and one bank
+  of 32 pins.
+
+properties:
+  compatible:
+    items:
+      - const: mobileye,eyeq6lplus-olb
+      - const: syscon
+
+  reg:
+    maxItems: 1
+
+  '#reset-cells':
+    description:
+      First cell is reset domain index.
+      Second cell is reset index inside that domain.
+    const: 2
+
+  '#clock-cells':
+    const: 1
+
+  clocks:
+    maxItems: 1
+    description:
+      Input parent clock to all PLLs. Expected to be the main crystal.
+
+  clock-names:
+    const: ref
+
+patternProperties:
+  '-pins?$':
+    type: object
+    description: Pin muxing configuration.
+    $ref: /schemas/pinctrl/pinmux-node.yaml#
+    additionalProperties: false
+    properties:
+      pins: true
+      function:
+        enum: [gpio, timer0, timer1, uart_ssi, spi0, uart0, timer2, timer3,
+               timer_ext0, spi1, timer_ext1, ext_ref_clk, mipi_ref_clk]
+      bias-disable: true
+      bias-pull-down: true
+      bias-pull-up: true
+      drive-strength: true
+    required:
+      - pins
+      - function
+    allOf:
+      - if:
+          properties:
+            function:
+              const: gpio
+        then:
+          properties:
+            pins:
+              items: # PA0 - PA31
+                pattern: '^(PA[1,2]?[0-9]|PA3[0,1])$'
+      - if:
+          properties:
+            function:
+              const: timer0
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PA0, PA1]
+      - if:
+          properties:
+            function:
+              const: timer1
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PA2, PA3]
+      - if:
+          properties:
+            function:
+              const: uart_ssi
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PA4, PA5]
+      - if:
+          properties:
+            function:
+              const: spi0
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PA6, PA7, PA8, PA9, PA10]
+      - if:
+          properties:
+            function:
+              const: uart0
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PA11, PA12]
+      - if:
+          properties:
+            function:
+              const: timer2
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PA13, PA14]
+      - if:
+          properties:
+            function:
+              const: timer3
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PA15, PA16]
+      - if:
+          properties:
+            function:
+              const: timer_ext0
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PA17, PA18, PA19, PA20]
+      - if:
+          properties:
+            function:
+              const: spi1
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PA21, PA22, PA23, PA24, PA25]
+      - if:
+          properties:
+            function:
+              const: timer_ext1
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PA26, PA27, PA28, PA29]
+      - if:
+          properties:
+            function:
+              const: ext_ref_clk
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PA30]
+      - if:
+          properties:
+            function:
+              const: mipi_ref_clk
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PA31]
+
+required:
+  - compatible
+  - reg
+  - '#clock-cells'
+  - clocks
+  - clock-names
+  - '#reset-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    soc {
+      #address-cells = <2>;
+      #size-cells = <2>;
+
+      system-controller@e8400000 {
+        compatible = "mobileye,eyeq6lplus-olb", "syscon";
+        reg = <0 0xe8400000 0x0 0x80000>;
+        #reset-cells = <2>;
+        #clock-cells = <1>;
+        clocks = <&xtal>;
+        clock-names = "ref";
+      };
+    };

diff --git a/include/dt-bindings/clock/mobileye,eyeq6lplus-clk.h b/include/dt-bindings/clock/mobileye,eyeq6lplus-clk.h
new file mode 100644 (file)
index 0000000..20d84ee
--- /dev/null
+++ b/include/dt-bindings/clock/mobileye,eyeq6lplus-clk.h
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Copyright (C) 2025 Mobileye Vision Technologies Ltd.
+ */
+
+#ifndef _DT_BINDINGS_CLOCK_MOBILEYE_EYEQ6LPLUS_CLK_H
+#define _DT_BINDINGS_CLOCK_MOBILEYE_EYEQ6LPLUS_CLK_H
+
+#define EQ6LPC_PLL_CPU         0
+#define EQ6LPC_PLL_DDR         1
+#define EQ6LPC_PLL_PER         2
+#define EQ6LPC_PLL_VDI         3
+#define EQ6LPC_PLL_ACC         4
+
+#define EQ6LPC_CPU_OCC         5
+
+#define EQ6LPC_ACC_VDI         6
+#define EQ6LPC_ACC_OCC         7
+#define EQ6LPC_ACC_FCMU                8
+
+#define EQ6LPC_DDR_OCC         9
+
+#define EQ6LPC_PER_OCC         10
+#define EQ6LPC_PER_I2C_SER     11
+#define EQ6LPC_PER_PCLK                12
+#define EQ6LPC_PER_TSU         13
+#define EQ6LPC_PER_OSPI                14
+#define EQ6LPC_PER_GPIO                15
+#define EQ6LPC_PER_TIMER       16
+#define EQ6LPC_PER_I2C         17
+#define EQ6LPC_PER_UART                18
+#define EQ6LPC_PER_SPI         19
+#define EQ6LPC_PER_PERIPH      20
+
+#define EQ6LPC_VDI_OCC         21
+
+#endif