1 # SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
4 $id: http://devicetree.org/schemas/clock/nvidia,tegra20-car.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: NVIDIA Tegra Clock and Reset Controller
10 - Jon Hunter <jonathanh@nvidia.com>
11 - Thierry Reding <thierry.reding@gmail.com>
14 The Clock and Reset (CAR) is the HW module responsible for muxing and gating
15 Tegra's clocks, and setting their rates. It comprises CLKGEN and RSTGEN units.
17 CLKGEN provides the registers to program the PLLs. It controls most of
18 the clock source programming and most of the clock dividers.
20 CLKGEN input signals include the external clock for the reference frequency
21 (12 MHz, 26 MHz) and the external clock for the Real Time Clock (32.768 KHz).
23 Outputs from CLKGEN are inputs clock of the h/w blocks in the Tegra system.
25 RSTGEN provides the registers needed to control resetting of each block in
46 "^(sclk)|(pll-[cem])$":
57 operating-points-v2: true
61 - description: node's clock
65 description: phandle to the core SoC power domain
73 additionalProperties: false
81 additionalProperties: false
85 #include <dt-bindings/clock/tegra20-car.h>
87 car: clock-controller@60006000 {
88 compatible = "nvidia,tegra20-car";
89 reg = <0x60006000 0x1000>;
94 compatible = "nvidia,tegra20-sclk";
95 operating-points-v2 = <&opp_table>;
96 clocks = <&tegra_car TEGRA20_CLK_SCLK>;
97 power-domains = <&domain>;