bindings/clock/arm%2Csyscon-icst.yaml

1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/clock/arm,syscon-icst.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: ARM System Controller ICST Clocks
10   - Linus Walleij <linusw@kernel.org>
16   oscillators to their system controllers.
18   The various ARM system controllers contain logic to serialize and initialize
20   into the system controller. Furthermore, to even be able to alter one of
21   these frequencies, the system controller must first be unlocked by
22   writing a special token to another offset in the system controller.
25   connects the low 8 bits of the VDW (missing one bit), hard-wires RDW to
26   different values and sometimes also hard-wires the output divider. They
38   integratorap-cm
41   integratorap-sys
44   integratorap-pci         14      1           14
47   integratorcp-cm-core
50   integratorcp-cm-mem
52   The ICST oscillator must be provided inside a system controller node.
55   "#clock-cells":
60       - arm,syscon-icst525
61       - arm,syscon-icst307
62       - arm,syscon-icst525-integratorap-cm
63       - arm,syscon-icst525-integratorap-sys
64       - arm,syscon-icst525-integratorap-pci
65       - arm,syscon-icst525-integratorcp-cm-core
66       - arm,syscon-icst525-integratorcp-cm-mem
67       - arm,integrator-cm-auxosc
68       - arm,versatile-cm-auxosc
69       - arm,impd-vco1
70       - arm,impd-vco2
76   clock-output-names:
79   lock-offset:
83   vco-offset:
88   - "#clock-cells"
89   - compatible
90   - clocks
95   - |
97       compatible = "arm,impd1-vco1";
98       #clock-cells = <0>;
99       lock-offset = <0x08>;
100       vco-offset = <0x00>;
102       clock-output-names = "IM-PD1-VCO1";