[PATCH 2/4] dt-bindings: clock: introduce toshiba,tc9564-clock.yaml
From: Alex Elder
Date: Fri Sep 18 2026 - 12:53:20 EST
Define the binding for the clock controller functionality present in
the Toshiba TC9564 SoC.
Co-developed-by: Daniel Thompson <daniel@xxxxxxxxxxxx>
Signed-off-by: Daniel Thompson <daniel@xxxxxxxxxxxx>
Signed-off-by: Alex Elder <elder@xxxxxxxxxxxx>
---
.../bindings/clock/toshiba,tc9564-clock.yaml | 64 +++++++++++++++++++
MAINTAINERS | 7 ++
include/dt-bindings/clock/toshiba,tc9564.h | 54 ++++++++++++++++
3 files changed, 125 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/toshiba,tc9564-clock.yaml
create mode 100644 include/dt-bindings/clock/toshiba,tc9564.h
diff --git a/Documentation/devicetree/bindings/clock/toshiba,tc9564-clock.yaml b/Documentation/devicetree/bindings/clock/toshiba,tc9564-clock.yaml
new file mode 100644
index 0000000000000..cc7019bd240e4
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/toshiba,tc9564-clock.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/toshiba,tc9564-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Toshiba TC9564 Clock and Reset Controller
+
+maintainers:
+ - Alex Elder <elder@xxxxxxxxxxxx>
+ - Daniel Thompson <daniel@xxxxxxxxxxxx>
+
+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 clock/reset controller) via its BARs.
+
+ The SoC is represented using a devicetree PCI endpoint bus, so the
+ clock controller is bound to its driver using a platform driver
+ compatible string. All of the clocks are simple gate clocks.
+
+ A total of 21 clocks are implemented, though two of these are not
+ controllable. Access to the clock controller relies on PCIe being
+ functional, so the PCIe clock is assumed to be always on. Similarly,
+ the PCIe controller relies on I2C, so the I2C clock is also assumed
+ to be always on.
+
+ In addition, 13 resets are implemented. Similar to clocks, the PCIe
+ and I2C resets are assumed to be deasserted and cannot be controlled.
+
+ Clock and reset ids are defined in <dt-bindings/clock/toshiba,tc9564.h>.
+
+properties:
+ compatible:
+ const: toshiba,tc9564-clock
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+ "#reset-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - "#clock-cells"
+ - "#reset-cells"
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/toshiba,tc9564.h>
+
+ clock@1004 {
+ compatible = "toshiba,tc9564-clock";
+ reg = <0x1004 0x20>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index b2d3257b8f892..66d0e7e65adcb 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -27670,6 +27670,13 @@ F: Documentation/devicetree/bindings/media/i2c/toshiba,tc358743.txt
F: drivers/media/i2c/tc358743*
F: include/media/i2c/tc358743.h
+TOSHIBA TC9564 CLOCK DRIVER
+M: Alex Elder <elder@xxxxxxxxxx>
+M: Daniel Thompson <danielt@xxxxxxxxxx>
+S: Maintained
+F: Documentation/devicetree/bindings/clock/toshiba,tc9564-clock.yaml
+F: include/dt-bindings/clock/toshiba,tc9564.h
+
TOSHIBA TC9564 PCI DRIVER
M: Alex Elder <elder@xxxxxxxxxx>
M: Daniel Thompson <danielt@xxxxxxxxxx>
diff --git a/include/dt-bindings/clock/toshiba,tc9564.h b/include/dt-bindings/clock/toshiba,tc9564.h
new file mode 100644
index 0000000000000..75732fddd3025
--- /dev/null
+++ b/include/dt-bindings/clock/toshiba,tc9564.h
@@ -0,0 +1,54 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+
+/*
+ * Copyright (C) 2026 by RISCstar Solutions Corporation. All rights reserved.
+ */
+
+#ifndef __ClOCK_TOSHIBA_TC9564_H__
+#define __ClOCK_TOSHIBA_TC9564_H__
+
+/* Clock IDs */
+
+#define CLOCK_MCU 0
+#define CLOCK_INTC 1
+/* #define CLOCK_PCIE 2 */
+/* #define CLOCK_I2C 3 */
+#define CLOCK_SRAM 4
+#define CLOCK_UART 5
+#define CLOCK_MSIGEN 6
+#define CLOCK_PLL 7
+#define CLOCK_SGMII 8
+#define CLOCK_REFCLKO 9
+
+#define CLOCK_MAC0_TX 10
+#define CLOCK_MAC0_RX 11
+#define CLOCK_MAC0_125M 12
+#define CLOCK_MAC0_312_5M 13
+#define CLOCK_MAC0_ALL 14
+
+#define CLOCK_MAC1_TX 15
+#define CLOCK_MAC1_RX 16
+#define CLOCK_MAC1_RMII 17
+#define CLOCK_MAC1_125M 18
+#define CLOCK_MAC1_312_5M 19
+#define CLOCK_MAC1_ALL 20
+
+/* Reset IDs */
+
+#define RESET_MCU 0
+#define RESET_MCU1 1
+#define RESET_MSIGEN 2
+#define RESET_INTC 3
+#define RESET_UART 4
+/* #define RESET_I2C 5 */
+/* #define RESET_PCIE 6 */
+
+#define RESET_MAC0_MAC 7
+#define RESET_MAC0_PMA 8
+#define RESET_MAC0_XPCS 9
+
+#define RESET_MAC1_MAC 10
+#define RESET_MAC1_PMA 11
+#define RESET_MAC1_XPCS 12
+
+#endif /* __ClOCK_TOSHIBA_TC9564_H__*/
--
2.53.0