mirror of
https://github.com/torvalds/linux.git
synced 2026-04-19 15:24:02 -04:00
1422eb8585
Samsung DTS ARM64 changes for v6.9 Mostly work around Google GS101 SoC and Pixel phone (Oriole) adding support for: 1. Multi Core Timer (MCT) clocksource. 2. Several clock controllers (DTS and DT bindings) and use new clocks in several other device nodes. 3. More serial-interface instances: USI8 and USI12 with I2C. Exynos850: 1. SPI and DMA controllers (PL330). * tag 'samsung-dt64-6.9' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: arm64: dts: fsd: Add fifosize for UART in Device Tree arm64: dts: exynos: gs101: minor whitespace cleanup arm64: dts: exynos: gs101: enable i2c bus 12 on gs101-oriole arm64: dts: exynos: gs101: define USI12 with I2C configuration arm64: dts: exynos: gs101: enable cmu-peric1 clock controller dt-bindings: clock: google,gs101-clock: add PERIC1 clock management unit arm64: dts: exynos: Add SPI nodes for Exynos850 arm64: dts: exynos: Add PDMA node for Exynos850 arm64: dts: exynos: gs101: use correct clocks for usi_uart arm64: dts: exynos: gs101: use correct clocks for usi8 arm64: dts: exynos: gs101: sysreg_peric0 needs a clock arm64: dts: exynos: gs101: enable eeprom on gs101-oriole arm64: dts: exynos: gs101: define USI8 with I2C configuration arm64: dts: exynos: gs101: update USI UART to use peric0 clocks arm64: dts: exynos: gs101: enable cmu-peric0 clock controller arm64: dts: exynos: gs101: remove reg-io-width from serial arm64: dts: exynos: gs101: define Multi Core Timer (MCT) node dt-bindings: clock: exynos850: Add PDMA clocks dt-bindings: clock: google,gs101-clock: add PERIC0 clock management unit Link: https://lore.kernel.org/r/20240218182141.31213-2-krzysztof.kozlowski@linaro.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
131 lines
3.1 KiB
YAML
131 lines
3.1 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/clock/google,gs101-clock.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: Google GS101 SoC clock controller
|
|
|
|
maintainers:
|
|
- Peter Griffin <peter.griffin@linaro.org>
|
|
|
|
description: |
|
|
Google GS101 clock controller is comprised of several CMU units, generating
|
|
clocks for different domains. Those CMU units are modeled as separate device
|
|
tree nodes, and might depend on each other. The root clock in that clock tree
|
|
is OSCCLK (24.576 MHz). That external clock must be defined as a fixed-rate
|
|
clock in dts.
|
|
|
|
CMU_TOP is a top-level CMU, where all base clocks are prepared using PLLs and
|
|
dividers; all other leaf clocks (other CMUs) are usually derived from CMU_TOP.
|
|
|
|
Each clock is assigned an identifier and client nodes can use this identifier
|
|
to specify the clock which they consume. All clocks available for usage
|
|
in clock consumer nodes are defined as preprocessor macros in
|
|
'dt-bindings/clock/gs101.h' header.
|
|
|
|
properties:
|
|
compatible:
|
|
enum:
|
|
- google,gs101-cmu-top
|
|
- google,gs101-cmu-apm
|
|
- google,gs101-cmu-misc
|
|
- google,gs101-cmu-peric0
|
|
- google,gs101-cmu-peric1
|
|
|
|
clocks:
|
|
minItems: 1
|
|
maxItems: 3
|
|
|
|
clock-names:
|
|
minItems: 1
|
|
maxItems: 3
|
|
|
|
"#clock-cells":
|
|
const: 1
|
|
|
|
reg:
|
|
maxItems: 1
|
|
|
|
required:
|
|
- compatible
|
|
- "#clock-cells"
|
|
- clocks
|
|
- clock-names
|
|
- reg
|
|
|
|
allOf:
|
|
- if:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
enum:
|
|
- google,gs101-cmu-top
|
|
- google,gs101-cmu-apm
|
|
then:
|
|
properties:
|
|
clocks:
|
|
items:
|
|
- description: External reference clock (24.576 MHz)
|
|
|
|
clock-names:
|
|
items:
|
|
- const: oscclk
|
|
|
|
- if:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
const: google,gs101-cmu-misc
|
|
|
|
then:
|
|
properties:
|
|
clocks:
|
|
items:
|
|
- description: Misc bus clock (from CMU_TOP)
|
|
- description: Misc sss clock (from CMU_TOP)
|
|
|
|
clock-names:
|
|
items:
|
|
- const: bus
|
|
- const: sss
|
|
|
|
- if:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
enum:
|
|
- google,gs101-cmu-peric0
|
|
- google,gs101-cmu-peric1
|
|
|
|
then:
|
|
properties:
|
|
clocks:
|
|
items:
|
|
- description: External reference clock (24.576 MHz)
|
|
- description: Connectivity Peripheral 0/1 bus clock (from CMU_TOP)
|
|
- description: Connectivity Peripheral 0/1 IP clock (from CMU_TOP)
|
|
|
|
clock-names:
|
|
items:
|
|
- const: oscclk
|
|
- const: bus
|
|
- const: ip
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
# Clock controller node for CMU_TOP
|
|
- |
|
|
#include <dt-bindings/clock/google,gs101.h>
|
|
|
|
cmu_top: clock-controller@1e080000 {
|
|
compatible = "google,gs101-cmu-top";
|
|
reg = <0x1e080000 0x8000>;
|
|
#clock-cells = <1>;
|
|
clocks = <&ext_24_5m>;
|
|
clock-names = "oscclk";
|
|
};
|
|
|
|
...
|