1 files changed, 0 insertions, 45 deletions
diff --git a/src/cpu/amd/pi/00630F01/udelay.c b/src/cpu/amd/pi/00630F01/udelay.c
deleted file mode 100644
index c09dde9124..0000000000
--- a/src/cpu/amd/pi/00630F01/udelay.c
+++ /dev/null
@@ -1,45 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-
-/*
- * udelay() implementation for SMI handlers
- * This is neat in that it never writes to hardware registers, and thus does not
- * modify the state of the hardware while servicing SMIs.
- */
-
-#include <cpu/x86/msr.h>
-#include <cpu/amd/msr.h>
-#include <cpu/x86/tsc.h>
-#include <delay.h>
-#include <stdint.h>
-
-void udelay(uint32_t us)
-{
-	uint8_t fid, did, pstate_idx;
-	uint64_t tsc_clock, tsc_start, tsc_now, tsc_wait_ticks;
-	msr_t msr;
-	const uint64_t tsc_base = 100000000;
-
-	/* Get initial timestamp before we do the math */
-	tsc_start = rdtscll();
-
-	/* Get the P-state. This determines which MSR to read */
-	msr = rdmsr(PS_STS_REG);
-	pstate_idx = msr.lo & 0x07;
-
-	/* Get FID and VID for current P-State */
-	msr = rdmsr(PSTATE_0_MSR + pstate_idx);
-
-	/* Extract the FID and VID values */
-	fid = msr.lo & 0x3f;
-	did = (msr.lo >> 6) & 0x7;
-
-	/* Calculate the CPU clock (from base freq of 100MHz) */
-	tsc_clock = tsc_base * (fid + 0x10) / (1 << did);
-
-	/* Now go on and wait */
-	tsc_wait_ticks = (tsc_clock / 1000000) * us;
-
-	do {
-		tsc_now = rdtscll();
-	} while (tsc_now - tsc_wait_ticks < tsc_start);
-}