diff options
| author | Keerthy <j-keerthy@ti.com> | 2015-08-18 09:41:14 (GMT) |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2015-09-05 17:37:20 (GMT) |
| commit | fff51e771eafc3b4fa6daf1372fd4a4023bb402b (patch) | |
| tree | eeae766e6c347c400ccb2dd54c43d979bf10b466 /arch | |
| parent | ff02c0444b83201ff76cc49deccac8cf2bffc7bc (diff) | |
| download | linux-fff51e771eafc3b4fa6daf1372fd4a4023bb402b.tar.xz | |
ARM: dts: AM437x: Add the internal and external clock nodes for rtc
rtc can either be supplied from internal 32k clock or external crystal
generated 32k clock. Internal clock is SOC specific and the external
clock is board dependent. Adding the corresponding nodes.
Signed-off-by: Keerthy <j-keerthy@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/boot/dts/am4372.dtsi | 2 | ||||
| -rw-r--r-- | arch/arm/boot/dts/am437x-gp-evm.dts | 13 | ||||
| -rw-r--r-- | arch/arm/boot/dts/am437x-idk-evm.dts | 9 | ||||
| -rw-r--r-- | arch/arm/boot/dts/am437x-sk-evm.dts | 9 |
4 files changed, 33 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi index 564900b..0447c04a 100644 --- a/arch/arm/boot/dts/am4372.dtsi +++ b/arch/arm/boot/dts/am4372.dtsi @@ -358,6 +358,8 @@ interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>; ti,hwmods = "rtc"; + clocks = <&clk_32768_ck>; + clock-names = "int-clk"; status = "disabled"; }; diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts index 215775d..22038f2 100644 --- a/arch/arm/boot/dts/am437x-gp-evm.dts +++ b/arch/arm/boot/dts/am437x-gp-evm.dts @@ -112,6 +112,13 @@ clock-frequency = <12000000>; }; + /* fixed 32k external oscillator clock */ + clk_32k_rtc: clk_32k_rtc { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <32768>; + }; + sound0: sound@0 { compatible = "simple-audio-card"; simple-audio-card,name = "AM437x-GP-EVM"; @@ -941,3 +948,9 @@ tx-num-evt = <32>; rx-num-evt = <32>; }; + +&rtc { + clocks = <&clk_32k_rtc>, <&clk_32768_ck>; + clock-names = "ext-clk", "int-clk"; + status = "okay"; +}; diff --git a/arch/arm/boot/dts/am437x-idk-evm.dts b/arch/arm/boot/dts/am437x-idk-evm.dts index 37834427..af25801 100644 --- a/arch/arm/boot/dts/am437x-idk-evm.dts +++ b/arch/arm/boot/dts/am437x-idk-evm.dts @@ -110,6 +110,13 @@ gpios = <&gpio4 2 GPIO_ACTIVE_LOW>; }; }; + + /* fixed 32k external oscillator clock */ + clk_32k_rtc: clk_32k_rtc { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <32768>; + }; }; &am43xx_pinmux { @@ -394,6 +401,8 @@ }; &rtc { + clocks = <&clk_32k_rtc>, <&clk_32768_ck>; + clock-names = "ext-clk", "int-clk"; status = "okay"; }; diff --git a/arch/arm/boot/dts/am437x-sk-evm.dts b/arch/arm/boot/dts/am437x-sk-evm.dts index 22af448..7da7c2d 100644 --- a/arch/arm/boot/dts/am437x-sk-evm.dts +++ b/arch/arm/boot/dts/am437x-sk-evm.dts @@ -24,6 +24,13 @@ display0 = &lcd0; }; + /* fixed 32k external oscillator clock */ + clk_32k_rtc: clk_32k_rtc { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <32768>; + }; + backlight { compatible = "pwm-backlight"; pwms = <&ecap0 0 50000 PWM_POLARITY_INVERTED>; @@ -697,6 +704,8 @@ }; &rtc { + clocks = <&clk_32k_rtc>, <&clk_32768_ck>; + clock-names = "ext-clk", "int-clk"; status = "okay"; }; |