--- zzzz-none-000/linux-4.9.279/arch/x86/kernel/rtc.c	2021-08-08 06:38:54.000000000 +0000
+++ puma7-atom-6591-750/linux-4.9.279/arch/x86/kernel/rtc.c	2023-02-08 11:43:42.000000000 +0000
@@ -1,6 +1,12 @@
 /*
  * RTC related functions
  */
+
+ /*
+ * Includes Intel Corporation's changes dated: 2020.
+ * Changed portions - Copyright 2020, Intel Corporation.
+ */
+
 #include <linux/platform_device.h>
 #include <linux/mc146818rtc.h>
 #include <linux/acpi.h>
@@ -61,7 +67,8 @@
 
 void mach_get_cmos_time(struct timespec *now)
 {
-	unsigned int status, year, mon, day, hour, min, sec, century = 0;
+	unsigned int year, mon, day, hour, min, sec, century = 0;
+	unsigned char status;
 	unsigned long flags;
 
 	spin_lock_irqsave(&rtc_lock, flags);
@@ -75,6 +82,16 @@
 	while ((CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP))
 		cpu_relax();
 
+#ifdef CONFIG_INTEL_FORCE_RTC_BCD_ENCODING
+	if (RTC_ALWAYS_BCD) {
+		status = CMOS_READ(RTC_CONTROL);
+		if (status & RTC_DM_BINARY) {
+			CMOS_WRITE((status ^ RTC_DM_BINARY), RTC_CONTROL);
+			pr_info("BCD encoding mode was forced for RTC\n");
+		}
+	}
+#endif
+
 	sec = CMOS_READ(RTC_SECONDS);
 	min = CMOS_READ(RTC_MINUTES);
 	hour = CMOS_READ(RTC_HOURS);