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

From: Sia Jee Heng
Date: Wed Jan 10 2024 - 08:33:24 EST


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

Signed-off-by: Sia Jee Heng <jeeheng.sia@xxxxxxxxxxxxxxxx>
Reviewed-by: Ley Foon Tan <leyfoon.tan@xxxxxxxxxxxxxxxx>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
---
.../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

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 <jeeheng.sia@xxxxxxxxxxxxxxxx>
+
+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__ */
--
2.34.1