From: Srinivas Neeli <srinivas.neeli@xilinx.com>
Date: Mon, 8 Mar 2021 08:35:19 +0000 (+0530)
Subject: arm64: zynqmp: rtc: Update rtc calibration value
X-Git-Url: http://git.dujemihanovic.xyz/img/sics.gif?a=commitdiff_plain;h=ee6b3c54e96917411e10f7eb3f249e339d1536c3;p=u-boot.git

arm64: zynqmp: rtc: Update rtc calibration value

As per the design specification
"The 16-bit Seconds Calibration Value represents the number of
 Oscillator Ticks that are required to measure the largest time
 period that is less than or equal to 1 second.
 For an oscillator that is 32.768 KHz, this value will be 0x7FFF."

Signed-off-by: Srinivas Neeli <srinivas.neeli@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---

diff --git a/arch/arm/dts/zynqmp.dtsi b/arch/arm/dts/zynqmp.dtsi
index 47ffdf1b16..d7e551630d 100644
--- a/arch/arm/dts/zynqmp.dtsi
+++ b/arch/arm/dts/zynqmp.dtsi
@@ -691,7 +691,7 @@
 			interrupt-parent = <&gic>;
 			interrupts = <0 26 4>, <0 27 4>;
 			interrupt-names = "alarm", "sec";
-			calibration = <0x8000>;
+			calibration = <0x7FFF>;
 		};
 
 		sata: ahci@fd0c0000 {