[coreboot-gerrit] Patch set updated for coreboot: 743d55f intel/i5000: Remove unused copy of udelay.c

Nico Huber (nico.huber@secunet.com) gerrit at coreboot.org
Fri May 17 16:01:41 CEST 2013


Nico Huber (nico.huber at secunet.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/3219

-gerrit

commit 743d55fd878811d38528a746fb375a5aa1acf794
Author: Nico Huber <nico.huber at secunet.com>
Date:   Fri May 17 15:58:35 2013 +0200

    intel/i5000: Remove unused copy of udelay.c
    
    It's a copy from i945 and looks like not beeing included in a build at
    all.
    
    Change-Id: I5c113bb0b2fed7b93feb3dcb1b5d962e1442963a
    Signed-off-by: Nico Huber <nico.huber at secunet.com>
---
 src/northbridge/intel/i5000/udelay.c | 85 ------------------------------------
 1 file changed, 85 deletions(-)

diff --git a/src/northbridge/intel/i5000/udelay.c b/src/northbridge/intel/i5000/udelay.c
deleted file mode 100644
index ce4c7b3..0000000
--- a/src/northbridge/intel/i5000/udelay.c
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2007-2008 coresystems GmbH
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <delay.h>
-#include <stdint.h>
-#include <cpu/x86/tsc.h>
-#include <cpu/x86/msr.h>
-#include <cpu/intel/speedstep.h>
-
-/**
- * Intel Core(tm) cpus always run the TSC at the maximum possible CPU clock
- */
-
-void udelay(u32 us)
-{
-	u32 dword;
-	tsc_t tsc, tsc1, tscd;
-	msr_t msr;
-	u32 fsb = 0, divisor;
-	u32 d;			/* ticks per us */
-	u32 dn = 0x1000000 / 2;	/* how many us before we need to use hi */
-
-	msr = rdmsr(MSR_FSB_FREQ);
-	switch (msr.lo & 0x07) {
-	case 5:
-		fsb = 400;
-		break;
-	case 1:
-		fsb = 533;
-		break;
-	case 3:
-		fsb = 667;
-		break;
-	case 2:
-		fsb = 800;
-		break;
-	case 0:
-		fsb = 1067;
-		break;
-	case 4:
-		fsb = 1333;
-		break;
-	case 6:
-		fsb = 1600;
-		break;
-	}
-
-	msr = rdmsr(0x198);
-	divisor = (msr.hi >> 8) & 0x1f;
-
-	d = fsb * divisor;
-
-	tscd.hi = us / dn;
-	tscd.lo = (us - tscd.hi * dn) * d;
-
-	tsc1 = rdtsc();
-	dword = tsc1.lo + tscd.lo;
-	if ((dword < tsc1.lo) || (dword < tscd.lo)) {
-		tsc1.hi++;
-	}
-	tsc1.lo = dword;
-	tsc1.hi += tscd.hi;
-
-	tsc = rdtsc();
-
-	do {
-		tsc = rdtsc();
-	} while ((tsc.hi < tsc1.hi) || ((tsc.hi == tsc1.hi) && (tsc.lo < tsc1.lo)));
-}



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