6511f11a49
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 fixed-clock. This fixes S3C RTC and silences dtbs_check warnings like: arch/arm/boot/dts/exynos4412-tiny4412.dt.yaml: rtc@10070000: clocks: [[7, 346]] is too short arch/arm/boot/dts/exynos4412-tiny4412.dt.yaml: rtc@10070000: clock-names: ['rtc'] is too short Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20200830135200.24304-32-krzk@kernel.org
146 lines
2.5 KiB
Plaintext
146 lines
2.5 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0
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/*
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* FriendlyARM's Exynos4412 based TINY4412 board device tree source
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*
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* Copyright (c) 2013 Alex Ling <kasimling@gmail.com>
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*
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* Device tree source file for FriendlyARM's TINY4412 board which is based on
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* Samsung's Exynos4412 SoC.
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*/
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/dts-v1/;
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#include "exynos4412.dtsi"
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#include <dt-bindings/gpio/gpio.h>
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/ {
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model = "FriendlyARM TINY4412 board based on Exynos4412";
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compatible = "friendlyarm,tiny4412", "samsung,exynos4412", "samsung,exynos4";
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chosen {
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stdout-path = &serial_0;
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};
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memory@40000000 {
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device_type = "memory";
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reg = <0x40000000 0x40000000>;
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};
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leds {
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compatible = "gpio-leds";
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led1 {
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label = "led1";
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gpios = <&gpm4 0 GPIO_ACTIVE_LOW>;
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default-state = "off";
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linux,default-trigger = "heartbeat";
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};
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led2 {
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label = "led2";
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gpios = <&gpm4 1 GPIO_ACTIVE_LOW>;
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default-state = "off";
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};
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led3 {
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label = "led3";
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gpios = <&gpm4 2 GPIO_ACTIVE_LOW>;
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default-state = "off";
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};
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led4 {
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label = "led4";
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gpios = <&gpm4 3 GPIO_ACTIVE_LOW>;
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default-state = "off";
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linux,default-trigger = "mmc0";
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};
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};
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fixed-rate-clocks {
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xxti {
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compatible = "samsung,clock-xxti";
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clock-frequency = <0>;
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};
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xusbxti {
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compatible = "samsung,clock-xusbxti";
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clock-frequency = <24000000>;
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};
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pmic_ap_clk: pmic-ap-clk {
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/* Workaround for missing clock on PMIC */
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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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panel {
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compatible = "innolux,at070tn92";
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port {
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panel_input: endpoint {
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remote-endpoint = <&lcdc_output>;
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};
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};
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};
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};
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&cpu_thermal {
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cooling-maps {
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cooling_map0: map0 {
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/* Corresponds to 800MHz at freq_table */
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cooling-device = <&cpu0 7 7>, <&cpu1 7 7>,
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<&cpu2 7 7>, <&cpu3 7 7>;
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};
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cooling_map1: map1 {
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/* Corresponds to 200MHz at freq_table */
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cooling-device = <&cpu0 13 13>, <&cpu1 13 13>,
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<&cpu2 13 13>, <&cpu3 13 13>;
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};
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};
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};
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&fimd {
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pinctrl-0 = <&lcd_clk>, <&lcd_data24>;
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pinctrl-names = "default";
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#address-cells = <1>;
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#size-cells = <0>;
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status = "okay";
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port@3 {
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reg = <3>;
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lcdc_output: endpoint {
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remote-endpoint = <&panel_input>;
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};
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};
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};
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&rtc {
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status = "okay";
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clocks = <&clock CLK_RTC>, <&pmic_ap_clk>;
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clock-names = "rtc", "rtc_src";
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};
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&sdhci_2 {
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bus-width = <4>;
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pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus4>;
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pinctrl-names = "default";
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status = "okay";
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};
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&serial_0 {
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status = "okay";
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};
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&serial_1 {
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status = "okay";
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};
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&serial_2 {
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status = "okay";
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};
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&serial_3 {
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status = "okay";
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};
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