dt-bindings: clock: add DT bindings for Cirrus EP93xx

This adds device tree bindings for the Cirrus Logic EP93xx
clock block used in these SoCs.

Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>

diff --git a/Documentation/devicetree/bindings/arm/ep93xx.yaml b/Documentation/devicetree/bindings/arm/ep93xx.yaml
new file mode 100644 (file)
index 0000000..de7020f
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/ep93xx.yaml
@@ -0,0 +1,102 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/ep93xx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logick EP93xx device tree bindings
+
+description: |+
+  The EP93xx SoC is a ARMv4T-based with 200 MHz ARM9 CPU.
+
+maintainers:
+  - Hartley Sweeten <hsweeten@visionengravers.com>
+  - Alexander Sverdlin <alexander.sverdlin@gmail.com>
+  - Nikita Shubin <nikita.shubin@maquefel.me>
+
+properties:
+  $nodename:
+    const: '/'
+  compatible:
+    oneOf:
+      - description: The TS-7250 is a compact, full-featured Single Board Computer (SBC)
+          based upon the Cirrus EP9302 ARM9 CPU.
+        items:
+          - const: technologic,ts7250
+          - const: liebherr,bk3
+          - const: cirrus,ep9301
+          - const: cirrus,edb9302
+
+  soc:
+    type: object
+    patternProperties:
+      "^.*syscon@80930000$":
+        type: object
+        properties:
+          compatible:
+            items:
+              - const: cirrus,ep9301-syscon
+              - const: syscon
+              - const: simple-mfd
+          ep9301-reboot:
+            type: object
+            properties:
+              compatible:
+                const: cirrus,ep9301-reboot
+        required:
+          - compatible
+          - reg
+          - '#clock-cells'
+          - ep9301-reboot
+
+      "^.*timer@80810000$":
+        type: object
+        properties:
+          compatible:
+            const: cirrus,ep9301-timer
+
+    required:
+      - syscon@80930000
+      - timer@80810000
+
+required:
+  - compatible
+  - soc
+
+additionalProperties: true
+
+examples:
+  - |
+    / {
+      compatible = "technologic,ts7250", "cirrus,ep9301";
+      model = "TS-7250 SBC";
+      #address-cells = <1>;
+      #size-cells = <1>;
+      soc {
+          #address-cells = <1>;
+          #size-cells = <1>;
+          ranges;
+          compatible = "simple-bus";
+
+          syscon: syscon@80930000 {
+                  compatible = "cirrus,ep9301-syscon",
+                                  "syscon", "simple-mfd";
+                  reg = <0x80930000 0x1000>;
+                  #clock-cells = <1>;
+                  #reset-cells = <1>;
+
+                  ep9301-reboot {
+                          compatible = "cirrus,ep9301-reboot";
+                  };
+          };
+
+          timer: timer@80810000 {
+                  compatible = "cirrus,ep9301-timer";
+                  reg = <0x80810000 0x100>;
+                  interrupt-parent = <&vic1>;
+                  interrupts = <19>;
+          };
+      };
+    };
+
+...

diff --git a/include/dt-bindings/clock/cirrus,ep93xx-clock.h b/include/dt-bindings/clock/cirrus,ep93xx-clock.h
new file mode 100644 (file)
index 0000000..ad79631
--- /dev/null
+++ b/include/dt-bindings/clock/cirrus,ep93xx-clock.h
@@ -0,0 +1,53 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef DT_BINDINGS_CIRRUS_EP93XX_CLOCK_H
+#define DT_BINDINGS_CIRRUS_EP93XX_CLOCK_H
+
+#define EP93XX_CLK_XTALI       0
+
+#define EP93XX_CLK_PLL1                1
+#define EP93XX_CLK_FCLK                2
+#define EP93XX_CLK_HCLK                3
+#define EP93XX_CLK_PCLK                4
+#define EP93XX_CLK_PLL2                5
+
+#define EP93XX_CLK_UART                6
+
+#define EP93XX_CLK_UART1       7
+#define EP93XX_CLK_UART2       8
+#define EP93XX_CLK_UART3       9
+
+#define EP93XX_CLK_M2M0                10
+#define EP93XX_CLK_M2M1                11
+
+#define EP93XX_CLK_M2P0                12
+#define EP93XX_CLK_M2P1                13
+#define EP93XX_CLK_M2P2                14
+#define EP93XX_CLK_M2P3                15
+#define EP93XX_CLK_M2P4                16
+#define EP93XX_CLK_M2P5                17
+#define EP93XX_CLK_M2P6                18
+#define EP93XX_CLK_M2P7                19
+#define EP93XX_CLK_M2P8                20
+#define EP93XX_CLK_M2P9                21
+
+#define EP93XX_CLK_SPI         22
+
+#define EP93XX_CLK_USB         23
+
+#define EP93XX_CLK_ADC         24
+#define EP93XX_CLK_ADC_EN      25
+
+#define EP93XX_CLK_KEYPAD       26
+
+#define EP93XX_CLK_PWM         27
+
+#define EP93XX_CLK_VIDEO       28
+
+#define EP93XX_CLK_I2S_MCLK    29
+#define EP93XX_CLK_I2S_SCLK    30
+#define EP93XX_CLK_I2S_LRCLK   31
+
+
+#define EP93XX_NUM_CLKS (EP93XX_CLK_I2S_LRCLK + 1)
+
+#endif /* DT_BINDINGS_CIRRUS_EP93XX_CLOCK_H */