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-rw-r--r--src/cpu/x86/tsc/delay_tsc.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/src/cpu/x86/tsc/delay_tsc.c b/src/cpu/x86/tsc/delay_tsc.c
index 439b477283..6120b88e96 100644
--- a/src/cpu/x86/tsc/delay_tsc.c
+++ b/src/cpu/x86/tsc/delay_tsc.c
@@ -9,12 +9,6 @@
static unsigned long clocks_per_usec CAR_GLOBAL;
-#if CONFIG_TSC_CONSTANT_RATE
-static unsigned long calibrate_tsc(void)
-{
- return tsc_freq_mhz();
-}
-#else /* CONFIG_TSC_CONSTANT_RATE */
#define CLOCK_TICK_RATE 1193180U /* Underlying HZ */
/* ------ Calibrate the TSC -------
@@ -28,7 +22,7 @@ static unsigned long calibrate_tsc(void)
#define CALIBRATE_INTERVAL ((2*CLOCK_TICK_RATE)/1000) /* 2ms */
#define CALIBRATE_DIVISOR (2*1000) /* 2ms / 2000 == 1usec */
-static unsigned long long calibrate_tsc(void)
+static unsigned long calibrate_tsc_with_pit(void)
{
/* Set the Gate high, disable speaker */
outb((inb(0x61) & ~0x02) | 0x01, 0x61);
@@ -89,7 +83,13 @@ bad_ctc:
return 0;
}
-#endif /* CONFIG_TSC_CONSTANT_RATE */
+static unsigned long calibrate_tsc(void)
+{
+ if (IS_ENABLED(CONFIG_TSC_CONSTANT_RATE))
+ return tsc_freq_mhz();
+ else
+ return calibrate_tsc_with_pit();
+}
void init_timer(void)
{