diff --git a/src/system/kernel/arch/ppc/arch_platform.cpp b/src/system/kernel/arch/ppc/arch_platform.cpp
index b4e7f09eb6..1defa41a7a 100644
--- a/src/system/kernel/arch/ppc/arch_platform.cpp
+++ b/src/system/kernel/arch/ppc/arch_platform.cpp
@@ -140,10 +140,8 @@ status_t
 PPCOpenFirmware::InitRTC(struct kernel_args *kernelArgs,
 	struct real_time_data *data)
 {
-kprintf("PPCOpenFirmware::InitRTC(): opening \"%s\"...\n", kernelArgs->platform_args.rtc_path);
 	// open RTC
 	fRTC = of_open(kernelArgs->platform_args.rtc_path);
-kprintf("  of_open() returned: %d\n", fRTC);
 	if (fRTC == OF_FAILED) {
 		dprintf("PPCOpenFirmware::InitRTC(): Failed open RTC device!\n");
 		return B_ERROR;
diff --git a/src/system/kernel/arch/ppc/arch_real_time_clock.cpp b/src/system/kernel/arch/ppc/arch_real_time_clock.cpp
index f074536487..463ed511c7 100644
--- a/src/system/kernel/arch/ppc/arch_real_time_clock.cpp
+++ b/src/system/kernel/arch/ppc/arch_real_time_clock.cpp
@@ -29,6 +29,9 @@ arch_rtc_init(kernel_args *args, struct real_time_data *data)
 	// init spinlock
 	sSetArchDataLock = 0;
 
+	// init system_time() conversion factor
+	__ppc_setup_system_time(&data->arch_data.system_time_conversion_factor);
+
 	return B_OK;
 }