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The S3C RTC requires 32768 Hz clock as input which is provided by PMIC. However the PMIC is not described in DTS at all so at least add a workaround to model its clock with a fixed-clock. This fixes dtbs_check warnings: rtc@e2800000: clocks: [[2, 145]] is too short rtc@e2800000: clock-names: ['rtc'] is too short Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20200907161141.31034-14-krzk@kernel.org
84 lines
1.5 KiB
Text
84 lines
1.5 KiB
Text
// SPDX-License-Identifier: GPL-2.0
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/*
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* Samsung's S5PV210 SoC device tree source
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*
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* Copyright (c) 2013-2014 Samsung Electronics, Co. Ltd.
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*
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* Mateusz Krawczuk <m.krawczuk@partner.samsung.com>
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* Tomasz Figa <t.figa@samsung.com>
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*
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* Board device tree source for YIC System SMDC110 board.
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*
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* NOTE: This file is completely based on original board file for mach-smdkc110
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* available in Linux 3.15 and intends to provide equivalent level of hardware
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* support. Due to lack of hardware, _no_ testing has been performed.
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*/
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/dts-v1/;
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#include <dt-bindings/input/input.h>
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#include "s5pv210.dtsi"
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/ {
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model = "YIC System SMDKC110 based on S5PC110";
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compatible = "yic,smdkc110", "samsung,s5pv210";
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chosen {
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bootargs = "console=ttySAC0,115200n8 root=/dev/mmcblk0p1 rw rootwait ignore_loglevel earlyprintk";
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};
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memory@20000000 {
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device_type = "memory";
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reg = <0x20000000 0x20000000>;
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};
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pmic_ap_clk: clock-0 {
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/* Workaround for missing PMIC and its clock */
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compatible = "fixed-clock";
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#clock-cells = <0>;
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clock-frequency = <32768>;
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};
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};
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&xusbxti {
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clock-frequency = <24000000>;
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};
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&uart0 {
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status = "okay";
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};
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&uart1 {
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status = "okay";
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};
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&uart2 {
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status = "okay";
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};
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&uart3 {
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status = "okay";
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};
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&rtc {
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status = "okay";
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clocks = <&clocks CLK_RTC>, <&pmic_ap_clk>;
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clock-names = "rtc", "rtc_src";
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};
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&i2c0 {
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status = "okay";
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audio-codec@1b {
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compatible = "wlf,wm8580";
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reg = <0x1b>;
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};
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eeprom@50 {
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compatible = "atmel,24c08";
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reg = <0x50>;
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};
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};
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&i2s0 {
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status = "okay";
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};
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