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Message-ID: <20260128093611.1932770-2-gary.yang@cixtech.com>
Date: Wed, 28 Jan 2026 17:36:09 +0800
From: Gary Yang <gary.yang@...tech.com>
To: lee@...nel.org,
robh@...nel.org,
krzk+dt@...nel.org,
conor+dt@...nel.org,
p.zabel@...gutronix.de,
peter.chen@...tech.com
Cc: devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
cix-kernel-upstream@...tech.com,
Gary Yang <gary.yang@...tech.com>
Subject: [PATCH v4 1/3] dt-bindings: reset: add sky1 reset controller
There are two reset controllers on Cix sky1 Soc.
One is located in S0 domain, and the other is located
in S0 and S5 domain.
Signed-off-by: Gary Yang <gary.yang@...tech.com>
Link: https://lore.kernel.org/r/20251124063235.952136-2-gary.yang@cixtech.com
Signed-off-by: Peter Chen <peter.chen@...tech.com>
---
.../devicetree/bindings/mfd/syscon.yaml | 7 +
.../bindings/reset/cix,sky1-rst.yaml | 46 +++++
.../soc/cix/cix,sky1-system-controller.yaml | 48 +++++
include/dt-bindings/reset/cix,sky1-rst-fch.h | 42 +++++
include/dt-bindings/reset/cix,sky1-rst.h | 164 ++++++++++++++++++
5 files changed, 307 insertions(+)
create mode 100644 Documentation/devicetree/bindings/reset/cix,sky1-rst.yaml
create mode 100644 Documentation/devicetree/bindings/soc/cix/cix,sky1-system-controller.yaml
create mode 100644 include/dt-bindings/reset/cix,sky1-rst-fch.h
create mode 100644 include/dt-bindings/reset/cix,sky1-rst.h
diff --git a/Documentation/devicetree/bindings/mfd/syscon.yaml b/Documentation/devicetree/bindings/mfd/syscon.yaml
index 55efb83b1495..be864a6b8efb 100644
--- a/Documentation/devicetree/bindings/mfd/syscon.yaml
+++ b/Documentation/devicetree/bindings/mfd/syscon.yaml
@@ -170,6 +170,8 @@ properties:
- cirrus,ep7209-syscon1
- cirrus,ep7209-syscon2
- cirrus,ep7209-syscon3
+ - cix,sky1-system-controller
+ - cix,sky1-s5-system-controller
- cnxt,cx92755-uc
- freecom,fsg-cs2-system-controller
- fsl,imx93-aonmix-ns-syscfg
@@ -254,6 +256,11 @@ properties:
- const: microchip,pic64gx-sysreg-scb
- const: microchip,mpfs-sysreg-scb
- const: syscon
+ - items:
+ - enum:
+ - cix,sky1-system-controller
+ - cix,sky1-s5-system-controller
+ - const: syscon
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/reset/cix,sky1-rst.yaml b/Documentation/devicetree/bindings/reset/cix,sky1-rst.yaml
new file mode 100644
index 000000000000..4323acdc2c45
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/cix,sky1-rst.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/reset/cix,sky1-rst.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: CIX Sky1 Reset Controller
+
+maintainers:
+ - Gary Yang <gary.yang@...tech.com>
+
+description: |
+ CIX Sky1 reset controller can be used to reset various set of peripherals.
+ There are two reset controllers, one is located in S0 domain, the other
+ is located in S0 and S5 domain.
+
+ See also:
+ - include/dt-bindings/reset/cix,sky1-rst.h
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - cix,sky1-rst
+ - cix,sky1-rst-fch
+
+ '#reset-cells':
+ const: 1
+
+required:
+ - compatible
+ - '#reset-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ syscon@...00000 {
+ compatible = "cix,sky1-s5-system-controller", "syscon",
+ "simple-mfd";
+ reg = <0x0 0x16000000 0x0 0x1000>;
+ src: reset-controller {
+ compatible = "cix,sky1-rst";
+ #reset-cells = <1>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/soc/cix/cix,sky1-system-controller.yaml b/Documentation/devicetree/bindings/soc/cix/cix,sky1-system-controller.yaml
new file mode 100644
index 000000000000..f6e2776e3f53
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/cix/cix,sky1-system-controller.yaml
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/cix/cix,sky1-system-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cix Sky1 SoC system controller register region
+
+maintainers:
+ - Gary Yang <gary.yang@...tech.com>
+
+description:
+ An wide assortment of registers of the system controller on Sky1 SoC,
+ including resets and usb.
+
+allOf:
+ - $ref: /schemas/mfd/syscon.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - contains:
+ - enum:
+ - cix,sky1-system-controller
+ - cix,sky1-s5-system-controller
+ - const: syscon
+ - const: simple-mfd
+
+ reg:
+ maxItems: 2
+
+patternProperties:
+ "^reset(-controller)?$":
+ $ref: /schemas/reset/cix,sky1-rst.yaml#
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ syscon@...00000 {
+ compatible = "cix,sky1-s5-system-controller", "syscon", "simple-mfd";
+ reg = <0x0 0x16000000 0x0 0x1000>;
+ };
+
diff --git a/include/dt-bindings/reset/cix,sky1-rst-fch.h b/include/dt-bindings/reset/cix,sky1-rst-fch.h
new file mode 100644
index 000000000000..8e67d7eb92aa
--- /dev/null
+++ b/include/dt-bindings/reset/cix,sky1-rst-fch.h
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/* Author: Jerry Zhu <jerry.zhu@...tech.com> */
+#ifndef DT_BINDING_RESET_FCH_SKY1_H
+#define DT_BINDING_RESET_FCH_SKY1_H
+
+/* func reset for sky1 fch */
+
+#define SW_I3C0_RST_FUNC_G_N 0
+#define SW_I3C0_RST_FUNC_I_N 1
+#define SW_I3C1_RST_FUNC_G_N 2
+#define SW_I3C1_RST_FUNC_I_N 3
+#define SW_UART0_RST_FUNC_N 4
+#define SW_UART1_RST_FUNC_N 5
+#define SW_UART2_RST_FUNC_N 6
+#define SW_UART3_RST_FUNC_N 7
+#define SW_TIMER_RST_FUNC_N 8
+
+/* apb reset for sky1 fch */
+#define SW_I3C0_RST_APB_N 9
+#define SW_I3C1_RST_APB_N 10
+#define SW_DMA_RST_AXI_N 11
+#define SW_UART0_RST_APB_N 12
+#define SW_UART1_RST_APB_N 13
+#define SW_UART2_RST_APB_N 14
+#define SW_UART3_RST_APB_N 15
+#define SW_SPI0_RST_APB_N 16
+#define SW_SPI1_RST_APB_N 17
+#define SW_I2C0_RST_APB_N 18
+#define SW_I2C1_RST_APB_N 19
+#define SW_I2C2_RST_APB_N 20
+#define SW_I2C3_RST_APB_N 21
+#define SW_I2C4_RST_APB_N 22
+#define SW_I2C5_RST_APB_N 23
+#define SW_I2C6_RST_APB_N 24
+#define SW_I2C7_RST_APB_N 25
+#define SW_GPIO_RST_APB_N 26
+
+/* fch rst for xspi */
+#define SW_XSPI_REG_RST_N 27
+#define SW_XSPI_SYS_RST_N 28
+
+#endif
diff --git a/include/dt-bindings/reset/cix,sky1-rst.h b/include/dt-bindings/reset/cix,sky1-rst.h
new file mode 100644
index 000000000000..2f0990922aad
--- /dev/null
+++ b/include/dt-bindings/reset/cix,sky1-rst.h
@@ -0,0 +1,164 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/* Author: Jerry Zhu <jerry.zhu@...tech.com> */
+#ifndef DT_BINDING_RESET_SKY1_H
+#define DT_BINDING_RESET_SKY1_H
+
+/* reset for csu_pm */
+
+#define SKY1_CSU_PM_RESET_N 0
+#define SKY1_SENSORFUSION_RESET_N 1
+#define SKY1_SENSORFUSION_NOC_RESET_N 2
+
+/* reset group0 for s0 domain modules */
+#define SKY1_DDRC_RESET_N 3
+#define SKY1_GIC_RESET_N 4
+#define SKY1_CI700_RESET_N 5
+#define SKY1_SYS_NI700_RESET_N 6
+#define SKY1_MM_NI700_RESET_N 7
+#define SKY1_PCIE_NI700_RESET_N 8
+#define SKY1_GPU_RESET_N 9
+#define SKY1_NPUTOP_RESET_N 10
+#define SKY1_NPUCORE0_RESET_N 11
+#define SKY1_NPUCORE1_RESET_N 12
+#define SKY1_NPUCORE2_RESET_N 13
+#define SKY1_VPU_RESET_N 14
+#define SKY1_ISP_SRESET_N 15
+#define SKY1_ISP_ARESET_N 16
+#define SKY1_ISP_HRESET_N 17
+#define SKY1_ISP_GDCRESET_N 18
+#define SKY1_DPU_RESET0_N 19
+#define SKY1_DPU_RESET1_N 20
+#define SKY1_DPU_RESET2_N 21
+#define SKY1_DPU_RESET3_N 22
+#define SKY1_DPU_RESET4_N 23
+#define SKY1_DP_RESET0_N 24
+#define SKY1_DP_RESET1_N 25
+#define SKY1_DP_RESET2_N 26
+#define SKY1_DP_RESET3_N 27
+#define SKY1_DP_RESET4_N 28
+#define SKY1_DP_PHY_RST_N 29
+
+/* reset group1 for s0 domain modules */
+#define SKY1_AUDIO_HIFI5_RESET_N 30
+#define SKY1_AUDIO_HIFI5_NOC_RESET_N 31
+#define SKY1_CSIDPHY_PRST0_N 32
+#define SKY1_CSIDPHY_CMNRST0_N 33
+#define SKY1_CSI0_RST_N 34
+#define SKY1_CSIDPHY_PRST1_N 35
+#define SKY1_CSIDPHY_CMNRST1_N 36
+#define SKY1_CSI1_RST_N 37
+#define SKY1_CSI2_RST_N 38
+#define SKY1_CSI3_RST_N 39
+#define SKY1_CSIBRDGE0_RST_N 40
+#define SKY1_CSIBRDGE1_RST_N 41
+#define SKY1_CSIBRDGE2_RST_N 42
+#define SKY1_CSIBRDGE3_RST_N 43
+#define SKY1_GMAC0_RST_N 44
+#define SKY1_GMAC1_RST_N 45
+#define SKY1_PCIE0_RESET_N 46
+#define SKY1_PCIE1_RESET_N 47
+#define SKY1_PCIE2_RESET_N 48
+#define SKY1_PCIE3_RESET_N 49
+#define SKY1_PCIE4_RESET_N 50
+
+/* reset group1 for usb phys */
+#define SKY1_USB_DP_PHY0_PRST_N 51
+#define SKY1_USB_DP_PHY1_PRST_N 52
+#define SKY1_USB_DP_PHY2_PRST_N 53
+#define SKY1_USB_DP_PHY3_PRST_N 54
+#define SKY1_USB_DP_PHY0_RST_N 55
+#define SKY1_USB_DP_PHY1_RST_N 56
+#define SKY1_USB_DP_PHY2_RST_N 57
+#define SKY1_USB_DP_PHY3_RST_N 58
+#define SKY1_USBPHY_SS_PST_N 59
+#define SKY1_USBPHY_SS_RST_N 60
+#define SKY1_USBPHY_HS0_PRST_N 61
+#define SKY1_USBPHY_HS1_PRST_N 62
+#define SKY1_USBPHY_HS2_PRST_N 63
+#define SKY1_USBPHY_HS3_PRST_N 64
+#define SKY1_USBPHY_HS4_PRST_N 65
+#define SKY1_USBPHY_HS5_PRST_N 66
+#define SKY1_USBPHY_HS6_PRST_N 67
+#define SKY1_USBPHY_HS7_PRST_N 68
+#define SKY1_USBPHY_HS8_PRST_N 69
+#define SKY1_USBPHY_HS9_PRST_N 70
+
+/* reset group1 for usb controllers */
+#define SKY1_USBC_SS0_PRST_N 71
+#define SKY1_USBC_SS1_PRST_N 72
+#define SKY1_USBC_SS2_PRST_N 73
+#define SKY1_USBC_SS3_PRST_N 74
+#define SKY1_USBC_SS4_PRST_N 75
+#define SKY1_USBC_SS5_PRST_N 76
+#define SKY1_USBC_SS0_RST_N 77
+#define SKY1_USBC_SS1_RST_N 78
+#define SKY1_USBC_SS2_RST_N 79
+#define SKY1_USBC_SS3_RST_N 80
+#define SKY1_USBC_SS4_RST_N 81
+#define SKY1_USBC_SS5_RST_N 82
+#define SKY1_USBC_HS0_PRST_N 83
+#define SKY1_USBC_HS1_PRST_N 84
+#define SKY1_USBC_HS2_PRST_N 85
+#define SKY1_USBC_HS3_PRST_N 86
+#define SKY1_USBC_HS0_RST_N 87
+#define SKY1_USBC_HS1_RST_N 88
+#define SKY1_USBC_HS2_RST_N 89
+#define SKY1_USBC_HS3_RST_N 90
+
+/* reset group0 for rcsu */
+#define SKY1_AUDIO_RCSU_RESET_N 91
+#define SKY1_CI700_RCSU_RESET_N 92
+#define SKY1_CSI_RCSU0_RESET_N 93
+#define SKY1_CSI_RCSU1_RESET_N 94
+#define SKY1_CSU_PM_RCSU_RESET_N 95
+#define SKY1_DDR_BROADCAST_RCSU_RESET_N 96
+#define SKY1_DDR_CTRL_RCSU_0_RESET_N 97
+#define SKY1_DDR_CTRL_RCSU_1_RESET_N 98
+#define SKY1_DDR_CTRL_RCSU_2_RESET_N 99
+#define SKY1_DDR_CTRL_RCSU_3_RESET_N 100
+#define SKY1_DDR_TZC400_RCSU_0_RESET_N 101
+#define SKY1_DDR_TZC400_RCSU_1_RESET_N 102
+#define SKY1_DDR_TZC400_RCSU_2_RESET_N 103
+#define SKY1_DDR_TZC400_RCSU_3_RESET_N 104
+#define SKY1_DP0_RCSU_RESET_N 105
+#define SKY1_DP1_RCSU_RESET_N 106
+#define SKY1_DP2_RCSU_RESET_N 107
+#define SKY1_DP3_RCSU_RESET_N 108
+#define SKY1_DP4_RCSU_RESET_N 109
+#define SKY1_DPU0_RCSU_RESET_N 110
+#define SKY1_DPU1_RCSU_RESET_N 111
+#define SKY1_DPU2_RCSU_RESET_N 112
+#define SKY1_DPU3_RCSU_RESET_N 113
+#define SKY1_DPU4_RCSU_RESET_N 114
+#define SKY1_DSU_RCSU_RESET_N 115
+#define SKY1_FCH_RCSU_RESET_N 116
+#define SKY1_GICD_RCSU_RESET_N 117
+#define SKY1_GMAC_RCSU_RESET_N 118
+#define SKY1_GPU_RCSU_RESET_N 119
+#define SKY1_ISP_RCSU0_RESET_N 120
+#define SKY1_ISP_RCSU1_RESET_N 121
+#define SKY1_NI700_MMHUB_RCSU_RESET_N 122
+
+/* reset group1 for rcsu */
+#define SKY1_NPU_RCSU_RESET_N 123
+#define SKY1_NI700_PCIE_RCSU_RESET_N 124
+#define SKY1_PCIE_X421_RCSU_RESET_N 125
+#define SKY1_PCIE_X8_RCSU_RESET_N 126
+#define SKY1_SF_RCSU_RESET_N 127
+#define SKY1_RCSU_SMMU_MMHUB_RESET_N 128
+#define SKY1_RCSU_SMMU_PCIEHUB_RESET_N 129
+#define SKY1_RCSU_SYSHUB_RESET_N 130
+#define SKY1_NI700_SMN_RCSU_RESET_N 131
+#define SKY1_NI700_SYSHUB_RCSU_RESET_N 132
+#define SKY1_RCSU_USB2_HOST0_RESET_N 133
+#define SKY1_RCSU_USB2_HOST1_RESET_N 134
+#define SKY1_RCSU_USB2_HOST2_RESET_N 135
+#define SKY1_RCSU_USB2_HOST3_RESET_N 136
+#define SKY1_RCSU_USB3_TYPEA_DRD_RESET_N 137
+#define SKY1_RCSU_USB3_TYPEC_DRD_RESET_N 138
+#define SKY1_RCSU_USB3_TYPEC_HOST0_RESET_N 139
+#define SKY1_RCSU_USB3_TYPEC_HOST1_RESET_N 140
+#define SKY1_RCSU_USB3_TYPEC_HOST2_RESET_N 141
+#define SKY1_VPU_RCSU_RESET_N 142
+
+#endif
--
2.49.0
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