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authorMartin Blumenstingl <martin.blumenstingl@googlemail.com>2019-04-13 18:34:21 +0200
committerKevin Hilman <khilman@baylibre.com>2019-04-16 11:57:48 -0700
commitf6eb973db22ab5636cfcdabe171d4b753525de4e (patch)
tree1f4d1ecf57d40ed9f33e64b6030985186faebdf5 /arch/arm/boot
parent07f9da2900674e8e7b15b090b878d8defe223277 (diff)
ARM: dts: meson: add support for the RTC
The 32-bit Meson SoCs have an RTC block in the AO (always on) area. The RTC requires an external 32.768 kHz oscillator to work properly. Whether or not this crystal exists depends on the board, so it has to be added for each board.dts (instead of adding it somewhere in a generic .dtsi). Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Diffstat (limited to 'arch/arm/boot')
-rw-r--r--arch/arm/boot/dts/meson.dtsi9
-rw-r--r--arch/arm/boot/dts/meson8.dtsi5
-rw-r--r--arch/arm/boot/dts/meson8b.dtsi5
3 files changed, 19 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi
index 6f54a8897574..8841783aceec 100644
--- a/arch/arm/boot/dts/meson.dtsi
+++ b/arch/arm/boot/dts/meson.dtsi
@@ -252,6 +252,15 @@
#size-cells = <0>;
status = "disabled";
};
+
+ rtc: rtc@740 {
+ compatible = "amlogic,meson6-rtc";
+ reg = <0x740 0x14>;
+ interrupts = <GIC_SPI 72 IRQ_TYPE_EDGE_RISING>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ status = "disabled";
+ };
};
usb0: usb@c9040000 {
diff --git a/arch/arm/boot/dts/meson8.dtsi b/arch/arm/boot/dts/meson8.dtsi
index d2ec4af82cc5..7ef442462ea4 100644
--- a/arch/arm/boot/dts/meson8.dtsi
+++ b/arch/arm/boot/dts/meson8.dtsi
@@ -541,6 +541,11 @@
compatible = "amlogic,meson8-pwm", "amlogic,meson8b-pwm";
};
+&rtc {
+ compatible = "amlogic,meson8-rtc";
+ resets = <&reset RESET_RTC>;
+};
+
&saradc {
compatible = "amlogic,meson8-saradc", "amlogic,meson-saradc";
clocks = <&clkc CLKID_XTAL>,
diff --git a/arch/arm/boot/dts/meson8b.dtsi b/arch/arm/boot/dts/meson8b.dtsi
index df42e48f1cc1..800cd65fc50a 100644
--- a/arch/arm/boot/dts/meson8b.dtsi
+++ b/arch/arm/boot/dts/meson8b.dtsi
@@ -510,6 +510,11 @@
compatible = "amlogic,meson8b-pwm";
};
+&rtc {
+ compatible = "amlogic,meson8b-rtc";
+ resets = <&reset RESET_RTC>;
+};
+
&saradc {
compatible = "amlogic,meson8b-saradc", "amlogic,meson-saradc";
clocks = <&clkc CLKID_XTAL>,