From 5079a0d32f2824445cf593dfbcb65598eaa97dee Mon Sep 17 00:00:00 2001
From: "Ronald G. Minnich" <rminnich@gmail.com>
Date: Tue, 27 Nov 2012 11:32:38 -0800
Subject: Remove assembly coded log2 function

As we move to supporting other systems we need to get rid of assembly
where we can. The log2 function in src/lib is identical to the assembly
one (tested for all 32-bit signed integers :-) and takes about 10 ns
to run as opposed to 5ns for the non-portable assembly version. While speed
is good, I think we can spare the 15 ns or so we add to boot time
by using the C version only.

Change-Id: Icafa565eae282c85fa5fc01b3bd1f110cd9aaa91
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/1928
Tested-by: build bot (Jenkins)
---
 src/southbridge/nvidia/ck804/lpc.c   | 1 -
 src/southbridge/nvidia/ck804/smbus.c | 1 -
 src/southbridge/nvidia/mcp55/lpc.c   | 1 -
 src/southbridge/nvidia/mcp55/smbus.c | 1 -
 4 files changed, 4 deletions(-)

(limited to 'src/southbridge/nvidia')

diff --git a/src/southbridge/nvidia/ck804/lpc.c b/src/southbridge/nvidia/ck804/lpc.c
index d37188265f..6ccea6a354 100644
--- a/src/southbridge/nvidia/ck804/lpc.c
+++ b/src/southbridge/nvidia/ck804/lpc.c
@@ -28,7 +28,6 @@
 #include <device/pci_ops.h>
 #include <pc80/mc146818rtc.h>
 #include <pc80/isa-dma.h>
-#include <bitops.h>
 #include <arch/io.h>
 #include <arch/ioapic.h>
 #include <cpu/x86/lapic.h>
diff --git a/src/southbridge/nvidia/ck804/smbus.c b/src/southbridge/nvidia/ck804/smbus.c
index 011faf8fb4..269340eb91 100644
--- a/src/southbridge/nvidia/ck804/smbus.c
+++ b/src/southbridge/nvidia/ck804/smbus.c
@@ -24,7 +24,6 @@
 #include <device/pci_ids.h>
 #include <device/pci_ops.h>
 #include <device/smbus.h>
-#include <bitops.h>
 #include <arch/io.h>
 #include "ck804.h"
 #include "smbus.h"
diff --git a/src/southbridge/nvidia/mcp55/lpc.c b/src/southbridge/nvidia/mcp55/lpc.c
index d16e3cc509..1e2155ae73 100644
--- a/src/southbridge/nvidia/mcp55/lpc.c
+++ b/src/southbridge/nvidia/mcp55/lpc.c
@@ -31,7 +31,6 @@
 #include <device/pci_ops.h>
 #include <pc80/mc146818rtc.h>
 #include <pc80/isa-dma.h>
-#include <bitops.h>
 #include <arch/io.h>
 #include <arch/ioapic.h>
 #include <cpu/x86/lapic.h>
diff --git a/src/southbridge/nvidia/mcp55/smbus.c b/src/southbridge/nvidia/mcp55/smbus.c
index a945f237d0..694918630b 100644
--- a/src/southbridge/nvidia/mcp55/smbus.c
+++ b/src/southbridge/nvidia/mcp55/smbus.c
@@ -27,7 +27,6 @@
 #include <device/pci_ids.h>
 #include <device/pci_ops.h>
 #include <device/smbus.h>
-#include <bitops.h>
 #include <arch/io.h>
 #include "mcp55.h"
 #include "smbus.h"
-- 
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