openwrt/target/linux/brcm2708/patches-3.18/0083-BCM2708_DT-Add-pcf8523...

47 lines
1.3 KiB
Diff

From 82fe3c57ba4c661c119a08567b9aaa5b63de07e1 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Wed, 28 Jan 2015 16:22:04 +0000
Subject: [PATCH 083/114] BCM2708_DT: Add pcf8523-rtc overlay
---
arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/pcf8523-rtc-overlay.dts | 22 ++++++++++++++++++++++
2 files changed, 23 insertions(+)
create mode 100644 arch/arm/boot/dts/pcf8523-rtc-overlay.dts
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -62,6 +62,7 @@ dtb-$(CONFIG_BCM2708_DT) += hifiberry-am
dtb-$(CONFIG_BCM2708_DT) += iqaudio-dac-overlay.dtb
dtb-$(CONFIG_BCM2708_DT) += iqaudio-dacplus-overlay.dtb
dtb-$(CONFIG_BCM2708_DT) += lirc-rpi-overlay.dtb
+dtb-$(CONFIG_BCM2708_DT) += pcf8523-rtc-overlay.dtb
dtb-$(CONFIG_BCM2708_DT) += pps-gpio-overlay.dtb
dtb-$(CONFIG_BCM2708_DT) += w1-gpio-overlay.dtb
dtb-$(CONFIG_BCM2708_DT) += w1-gpio-pullup-overlay.dtb
--- /dev/null
+++ b/arch/arm/boot/dts/pcf8523-rtc-overlay.dts
@@ -0,0 +1,22 @@
+// Definitions for PCF8523 Real Time Clock
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "brcm,bcm2708";
+
+ fragment@0 {
+ target = <&i2c1>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ pcf8523@68 {
+ compatible = "nxp,pcf8523";
+ reg = <0x68>;
+ status = "okay";
+ };
+ };
+ };
+};