[RFC,v3,11/16] dt-bindings: clock: Add StarFive JH8100 South-West clock and reset generator

Commit Message

JeeHeng Sia Jan. 10, 2024, 1:31 p.m. UTC

Add bindings for the South-West clock and reset generator (SWCRG) on
JH8100 SoC.

Signed-off-by: Sia Jee Heng <[e-mail]>
Reviewed-by: Ley Foon Tan <[e-mail]>
Reviewed-by: Krzysztof Kozlowski <[e-mail]>
---
 .../bindings/clock/starfive,jh8100-swcrg.yaml | 64 +++++++++++++++++++
 .../dt-bindings/clock/starfive,jh8100-crg.h   | 12 ++++
 .../dt-bindings/reset/starfive,jh8100-crg.h   |  8 +++
 3 files changed, 84 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/starfive,jh8100-swcrg.yaml

Patch

diff --git a/Documentation/devicetree/bindings/clock/starfive,jh8100-swcrg.yaml b/Documentation/devicetree/bindings/clock/starfive,jh8100-swcrg.yaml
new file mode 100644
index 000000000000..287dff7e91e3
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/starfive,jh8100-swcrg.yaml
@@ -0,0 +1,64 @@ 
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/starfive,jh8100-swcrg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive JH8100 South-West Clock And Reset Generator
+
+maintainers:
+  - Sia Jee Heng <[e-mail]>
+
+properties:
+  compatible:
+    const: starfive,jh8100-swcrg
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: APB_BUS clock from SYSCRG
+      - description: VDEC_ROOT clock from SYSCRG
+      - description: FLEXNOC1 clock from SYSCRG
+
+  clock-names:
+    items:
+      - const: apb_bus
+      - const: vdec_root
+      - const: flexnoc1
+
+  '#clock-cells':
+    const: 1
+    description:
+      See <dt-bindings/clock/starfive,jh8100-crg.h> for valid indices.
+
+  '#reset-cells':
+    const: 1
+    description:
+      See <dt-bindings/reset/starfive,jh8100-crg.h> for valid indices.
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - '#clock-cells'
+  - '#reset-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/starfive,jh8100-crg.h>
+
+    clock-controller@12720000 {
+        compatible = "starfive,jh8100-swcrg";
+        reg = <0x12720000 0x10000>;
+        clocks = <&syscrg JH8100_SYSCLK_APB_BUS>,
+                 <&syscrg JH8100_SYSCLK_VDEC_ROOT>,
+                 <&syscrg JH8100_SYSCLK_FLEXNOC1>;
+        clock-names = "apb_bus", "vdec_root", "flexnoc1";
+        #clock-cells = <1>;
+        #reset-cells = <1>;
+    };
diff --git a/include/dt-bindings/clock/starfive,jh8100-crg.h b/include/dt-bindings/clock/starfive,jh8100-crg.h
index c37b42f3eacd..7b337c1495be 100644
--- a/include/dt-bindings/clock/starfive,jh8100-crg.h
+++ b/include/dt-bindings/clock/starfive,jh8100-crg.h
@@ -339,4 +339,16 @@ 
 #define JH8100_NECLK_CAN1_ICG_EN					173
 #define JH8100_NECLK_SMBUS0_ICG_EN					174
 
+/* SWCRG clocks */
+#define JH8100_SWCLK_JPEG_AXI						0
+#define JH8100_SWCLK_VC9000DJ_AXI					1
+#define JH8100_SWCLK_VC9000DJ_VDEC					2
+#define JH8100_SWCLK_VC9000DJ_APB					3
+#define JH8100_SWCLK_VDEC_AXI						4
+#define JH8100_SWCLK_VC9000D_AXI					5
+#define JH8100_SWCLK_VC9000D_VDEC					6
+#define JH8100_SWCLK_VC9000D_APB					7
+#define JH8100_SWCLK_JPEG_ICG_EN					8
+#define JH8100_SWCLK_VDEC_ICG_EN					9
+
 #endif /* __DT_BINDINGS_CLOCK_STARFIVE_JH8100_H__ */
diff --git a/include/dt-bindings/reset/starfive,jh8100-crg.h b/include/dt-bindings/reset/starfive,jh8100-crg.h
index 30a99c78341a..de4f25dc301d 100644
--- a/include/dt-bindings/reset/starfive,jh8100-crg.h
+++ b/include/dt-bindings/reset/starfive,jh8100-crg.h
@@ -91,4 +91,12 @@ 
 #define JH8100_NERST_SYS_IOMUX_E				48
 #define JH8100_NERST_DUBHE_TVSENSOR				49
 
+/*
+ * SWCRG resets: assert0
+ */
+#define JH8100_SWRST_PRESETN					0
+#define JH8100_SWRST_VC9000DJ					1
+#define JH8100_SWRST_VC9000D					2
+#define JH8100_SWRST_DDR_TVSENSOR				3
+
 #endif /* __DT_BINDINGS_RESET_STARFIVE_JH8100_H__ */