diff options
| author | Harini T <[email protected]> | 2026-06-29 11:46:33 +0200 |
|---|---|---|
| committer | Michal Simek <[email protected]> | 2026-07-08 08:55:52 +0200 |
| commit | f717b9cf3918aa709af4b44b9ef46759abb9d2e5 (patch) | |
| tree | e9aef81361d655fc1bdbbe22cf719369ba50f372 | |
| parent | bbc71f8c28c11fc3fca44371c347b000500509f2 (diff) | |
arch: arm: dts: Add RTC clock nodes for ZynqMP platform
Add fixed RTC clock nodes at 32.768 kHz for ZynqMP. The RTC driver uses
this clock to calculate the calibration value, replacing the deprecated
calibration device tree property.
Signed-off-by: Harini T <[email protected]>
Reviewed-by: Tomas Melin <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
Link: https://patch.msgid.link/8838c8c4fcd0dfe151bcee2a6c4da51df81e23cb.1782726386.git.michal.simek@amd.com
| -rw-r--r-- | arch/arm/dts/zynqmp-clk-ccf.dtsi | 15 | ||||
| -rw-r--r-- | arch/arm/dts/zynqmp.dtsi | 1 |
2 files changed, 14 insertions, 2 deletions
diff --git a/arch/arm/dts/zynqmp-clk-ccf.dtsi b/arch/arm/dts/zynqmp-clk-ccf.dtsi index 482f432ba7f..877962df2b3 100644 --- a/arch/arm/dts/zynqmp-clk-ccf.dtsi +++ b/arch/arm/dts/zynqmp-clk-ccf.dtsi @@ -3,7 +3,7 @@ * Clock specification for Xilinx ZynqMP * * (C) Copyright 2017 - 2022, Xilinx, Inc. - * (C) Copyright 2022 - 2023, Advanced Micro Devices, Inc. + * (C) Copyright 2022 - 2026, Advanced Micro Devices, Inc. * * Michal Simek <[email protected]> */ @@ -49,6 +49,14 @@ clock-frequency = <27000000>; clock-output-names = "aux_ref_clk"; }; + + rtc_clk: rtc-clk { + bootph-all; + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <32768>; + clock-output-names = "rtc_clk"; + }; }; &zynqmp_firmware { @@ -302,3 +310,8 @@ <&zynqmp_clk DP_AUDIO_REF>, <&zynqmp_clk DP_VIDEO_REF>; /* rpll, rpll, vpll */ }; + +&rtc { + clocks = <&rtc_clk>; + clock-names = "rtc"; +}; diff --git a/arch/arm/dts/zynqmp.dtsi b/arch/arm/dts/zynqmp.dtsi index 13cfca66657..c225eb219f4 100644 --- a/arch/arm/dts/zynqmp.dtsi +++ b/arch/arm/dts/zynqmp.dtsi @@ -1006,7 +1006,6 @@ interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>; interrupt-names = "alarm", "sec"; - calibration = <0x7FFF>; }; sata: ahci@fd0c0000 { |