[PATCH 1/2] dt-bindings: reset: introduce toshiba,tc9564-reset.yaml

[Alex Elder <elder@riscstar.com>]

Define the binding for the reset controller functionality present in
the Toshiba TC9564 SoC.

Co-developed-by: Daniel Thompson <daniel@riscstar.com>
Signed-off-by: Daniel Thompson <daniel@riscstar.com>
Signed-off-by: Alex Elder <elder@riscstar.com>
---
 .../bindings/reset/toshiba,tc9564-reset.yaml  | 56 +++++++++++++++++++
 MAINTAINERS                                   |  7 +++
 include/dt-bindings/reset/toshiba,tc9564.h    | 26 +++++++++
 3 files changed, 89 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/reset/toshiba,tc9564-reset.yaml
 create mode 100644 include/dt-bindings/reset/toshiba,tc9564.h

diff --git a/Documentation/devicetree/bindings/reset/toshiba,tc9564-reset.yaml b/Documentation/devicetree/bindings/reset/toshiba,tc9564-reset.yaml
new file mode 100644
index 0000000000000..1908e9539abac
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/toshiba,tc9564-reset.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/reset/toshiba,tc9564-reset.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Toshiba TC9564 Reset Controller
+
+maintainers:
+  - Alex Elder <elder@riscstar.com>
+  - Daniel Thompson <daniel@riscstar.com>
+
+description:
+  The Toshiba TC9564 is an SoC accessed by a host system through the
+  upstream PCIe port on the PCIe switch it implements.  The switch
+  includes an embedded PCIe endpoint that provides access to various
+  SoC peripherals (including a reset controller) via its BARs.
+
+  A total of 13 resets are implemented, though two of these are not
+  controllable.  Access to the reset controller relies on PCIe being
+  functional, so the PCIe reset is assumed to be deasserted.  Similarly,
+  the PCIe controller relies on I2C, so the I2C reset is also assumed
+  to be deasserted.
+
+  Reset ids are defined in <dt-bindings/reset/toshiba,tc9564.h>.
+
+  The reset controller uses registers within the same page as a
+  clock controller, so both devices are defined as children of a
+  "config" syscon.
+
+properties:
+  compatible:
+    const: toshiba,tc9564-reset
+
+  "#reset-cells":
+    const: 1
+
+required:
+  - compatible
+  - "#reset-cells"
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/reset/toshiba,tc9564.h>
+
+    syscon@0 {
+        compatible = "syscon", "simple-mfd";
+        reg = <0x0 0x2000>;
+
+        reset {
+            compatible = "toshiba,tc9564-reset";
+            #reset-cells = <1>;
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 252b6d7ee1638..d0eb44079fe17 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -28180,6 +28180,13 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/misc/pci1179,0220.yaml
 F:	drivers/misc/tc9564-pci.c
 
+TOSHIBA TC9564 RESET DRIVER
+M:	Alex Elder <elder@kernel.org>
+M:	Daniel Thompson <danielt@kernel.org>
+S:	Maintained
+F:	Documentation/devicetree/bindings/reset/toshiba,tc9564-reset.yaml
+F:	include/dt-bindings/reset/toshiba,tc9564.h
+
 TOSHIBA WMI HOTKEYS DRIVER
 M:	Azael Avalos <coproscefalo@gmail.com>
 L:	platform-driver-x86@vger.kernel.org
diff --git a/include/dt-bindings/reset/toshiba,tc9564.h b/include/dt-bindings/reset/toshiba,tc9564.h
new file mode 100644
index 0000000000000..5fcc9a06d4ff6
--- /dev/null
+++ b/include/dt-bindings/reset/toshiba,tc9564.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+
+/*
+ * Copyright (C) 2026 by RISCstar Solutions Corporation.  All rights reserved.
+ */
+
+#ifndef __RESET_TOSHIBA_TC9564_H__
+#define __RESET_TOSHIBA_TC9564_H__
+
+/* Reset IDs */
+
+#define RESET_MCU		0
+#define RESET_MCU1		1
+#define RESET_MSIGEN		2
+#define RESET_INTC		3
+#define RESET_UART		4
+
+#define RESET_MAC0_MAC		5
+#define RESET_MAC0_PMA		6
+#define RESET_MAC0_XPCS		7
+
+#define RESET_MAC1_MAC		8
+#define RESET_MAC1_PMA		9
+#define RESET_MAC1_XPCS		10
+
+#endif /* __RESET_TOSHIBA_TC9564_H__*/
-- 
2.53.0