*
* Returns the calibration value or 0 if MSR calibration failed.
*/
-static unsigned long try_msr_calibrate_tsc(void)
+static unsigned long __maybe_unused try_msr_calibrate_tsc(void)
{
u32 lo, hi, ratio, freq_id, freq;
unsigned long res;
#define MAX_QUICK_PIT_MS 50
#define MAX_QUICK_PIT_ITERATIONS (MAX_QUICK_PIT_MS * PIT_TICK_RATE / 1000 / 256)
-static unsigned long quick_pit_calibrate(void)
+static unsigned long __maybe_unused quick_pit_calibrate(void)
{
int i;
u64 tsc, delta;
if (gd->arch.tsc_mhz)
return gd->arch.tsc_mhz;
+#ifdef CONFIG_TSC_CALIBRATION_BYPASS
+ fast_calibrate = CONFIG_TSC_FREQ_IN_MHZ;
+#else
fast_calibrate = try_msr_calibrate_tsc();
if (!fast_calibrate) {
if (!fast_calibrate)
panic("TSC frequency is ZERO");
}
+#endif
gd->arch.tsc_mhz = fast_calibrate;
return fast_calibrate;