northbridge/intel/i440bx: Unify UDELAY selection

Instead of manually including udelay_io.c in each romstage,
select UDELAY_IO for all i440BX boards in the chipset.

Change-Id: I411191927f3fba1d0749edcf79378e8013fb195a
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: https://review.coreboot.org/13781
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
diff --git a/src/cpu/intel/socket_PGA370/Kconfig b/src/cpu/intel/socket_PGA370/Kconfig
index 9e7bdae..b23308ce 100644
--- a/src/cpu/intel/socket_PGA370/Kconfig
+++ b/src/cpu/intel/socket_PGA370/Kconfig
@@ -17,7 +17,6 @@
 	bool
 	select CPU_INTEL_MODEL_6XX
 	select MMX
-	select UDELAY_TSC
 
 if CPU_INTEL_SOCKET_PGA370
 
diff --git a/src/drivers/pc80/Makefile.inc b/src/drivers/pc80/Makefile.inc
index 0788cc7..f468318 100644
--- a/src/drivers/pc80/Makefile.inc
+++ b/src/drivers/pc80/Makefile.inc
@@ -5,6 +5,7 @@
 ramstage-y += isa-dma.c
 ramstage-y += i8254.c
 ramstage-y += i8259.c
+romstage-$(CONFIG_UDELAY_IO) += udelay_io.c
 ramstage-$(CONFIG_UDELAY_IO) += udelay_io.c
 ramstage-y += keyboard.c
 ramstage-$(CONFIG_SPKMODEM) += spkmodem.c
diff --git a/src/mainboard/a-trend/atc-6220/Kconfig b/src/mainboard/a-trend/atc-6220/Kconfig
index 4f1966b..626f743 100644
--- a/src/mainboard/a-trend/atc-6220/Kconfig
+++ b/src/mainboard/a-trend/atc-6220/Kconfig
@@ -21,7 +21,6 @@
 	select SOUTHBRIDGE_INTEL_I82371EB
 	select SUPERIO_WINBOND_W83977TF
 	select HAVE_PIRQ_TABLE
-	select UDELAY_TSC
 	select BOARD_ROMSIZE_KB_256
 
 config MAINBOARD_DIR
diff --git a/src/mainboard/a-trend/atc-6220/romstage.c b/src/mainboard/a-trend/atc-6220/romstage.c
index 35ee9bf..f075b4e 100644
--- a/src/mainboard/a-trend/atc-6220/romstage.c
+++ b/src/mainboard/a-trend/atc-6220/romstage.c
@@ -22,7 +22,6 @@
 #include <console/console.h>
 #include <southbridge/intel/i82371eb/i82371eb.h>
 #include <northbridge/intel/i440bx/raminit.h>
-#include "drivers/pc80/udelay_io.c"
 #include <delay.h>
 #include <cpu/x86/bist.h>
 #include <superio/winbond/common/winbond.h>
diff --git a/src/mainboard/a-trend/atc-6240/Kconfig b/src/mainboard/a-trend/atc-6240/Kconfig
index 6051b76..5d0d4f6 100644
--- a/src/mainboard/a-trend/atc-6240/Kconfig
+++ b/src/mainboard/a-trend/atc-6240/Kconfig
@@ -21,7 +21,6 @@
 	select SOUTHBRIDGE_INTEL_I82371EB
 	select SUPERIO_WINBOND_W83627HF
 	select HAVE_PIRQ_TABLE
-	select UDELAY_TSC
 	select BOARD_ROMSIZE_KB_256
 
 config MAINBOARD_DIR
diff --git a/src/mainboard/a-trend/atc-6240/romstage.c b/src/mainboard/a-trend/atc-6240/romstage.c
index 1de647e..8c73824 100644
--- a/src/mainboard/a-trend/atc-6240/romstage.c
+++ b/src/mainboard/a-trend/atc-6240/romstage.c
@@ -22,7 +22,6 @@
 #include <console/console.h>
 #include <southbridge/intel/i82371eb/i82371eb.h>
 #include <northbridge/intel/i440bx/raminit.h>
-#include "drivers/pc80/udelay_io.c"
 #include <delay.h>
 #include <cpu/x86/bist.h>
 #include <superio/winbond/common/winbond.h>
diff --git a/src/mainboard/abit/be6-ii_v2_0/Kconfig b/src/mainboard/abit/be6-ii_v2_0/Kconfig
index b5eaff6..acb5f3a 100644
--- a/src/mainboard/abit/be6-ii_v2_0/Kconfig
+++ b/src/mainboard/abit/be6-ii_v2_0/Kconfig
@@ -21,7 +21,6 @@
 	select SOUTHBRIDGE_INTEL_I82371EB
 	select SUPERIO_WINBOND_W83977TF
 	select HAVE_PIRQ_TABLE
-	select UDELAY_TSC
 	select BOARD_ROMSIZE_KB_256
 
 config MAINBOARD_DIR
diff --git a/src/mainboard/abit/be6-ii_v2_0/romstage.c b/src/mainboard/abit/be6-ii_v2_0/romstage.c
index 08c4b4d..e38d846 100644
--- a/src/mainboard/abit/be6-ii_v2_0/romstage.c
+++ b/src/mainboard/abit/be6-ii_v2_0/romstage.c
@@ -22,7 +22,6 @@
 #include <console/console.h>
 #include <southbridge/intel/i82371eb/i82371eb.h>
 #include <northbridge/intel/i440bx/raminit.h>
-#include "drivers/pc80/udelay_io.c"
 #include <delay.h>
 #include <cpu/x86/bist.h>
 #include <superio/winbond/common/winbond.h>
diff --git a/src/mainboard/asus/p2b-d/Kconfig b/src/mainboard/asus/p2b-d/Kconfig
index 7a13a45..ba2e7e0 100644
--- a/src/mainboard/asus/p2b-d/Kconfig
+++ b/src/mainboard/asus/p2b-d/Kconfig
@@ -24,7 +24,6 @@
 	select HAVE_MP_TABLE
 	select SMP
 	select IOAPIC
-	select UDELAY_TSC
 	select BOARD_ROMSIZE_KB_256
 	select SDRAMPWR_4DIMM
 
diff --git a/src/mainboard/asus/p2b-d/romstage.c b/src/mainboard/asus/p2b-d/romstage.c
index c83ca6d..b46646d 100644
--- a/src/mainboard/asus/p2b-d/romstage.c
+++ b/src/mainboard/asus/p2b-d/romstage.c
@@ -22,7 +22,6 @@
 #include <console/console.h>
 #include <southbridge/intel/i82371eb/i82371eb.h>
 #include <northbridge/intel/i440bx/raminit.h>
-#include "drivers/pc80/udelay_io.c"
 #include <delay.h>
 #include <cpu/x86/bist.h>
 #include <superio/winbond/common/winbond.h>
diff --git a/src/mainboard/asus/p2b-ds/Kconfig b/src/mainboard/asus/p2b-ds/Kconfig
index 53e4bdb..7d69d1f 100644
--- a/src/mainboard/asus/p2b-ds/Kconfig
+++ b/src/mainboard/asus/p2b-ds/Kconfig
@@ -24,7 +24,6 @@
 	select HAVE_MP_TABLE
 	select SMP
 	select IOAPIC
-	select UDELAY_TSC
 	select BOARD_ROMSIZE_KB_256
 	select SDRAMPWR_4DIMM
 
diff --git a/src/mainboard/asus/p2b-ds/romstage.c b/src/mainboard/asus/p2b-ds/romstage.c
index 65f8cea..4464f29 100644
--- a/src/mainboard/asus/p2b-ds/romstage.c
+++ b/src/mainboard/asus/p2b-ds/romstage.c
@@ -22,7 +22,6 @@
 #include <console/console.h>
 #include <southbridge/intel/i82371eb/i82371eb.h>
 #include <northbridge/intel/i440bx/raminit.h>
-#include "drivers/pc80/udelay_io.c"
 #include <delay.h>
 #include <cpu/x86/bist.h>
 #include <superio/winbond/common/winbond.h>
diff --git a/src/mainboard/asus/p2b-f/Kconfig b/src/mainboard/asus/p2b-f/Kconfig
index 2c78ba7..b702c1b 100644
--- a/src/mainboard/asus/p2b-f/Kconfig
+++ b/src/mainboard/asus/p2b-f/Kconfig
@@ -21,7 +21,6 @@
 	select SOUTHBRIDGE_INTEL_I82371EB
 	select SUPERIO_WINBOND_W83977TF
 	select HAVE_PIRQ_TABLE
-	select UDELAY_TSC
 	select BOARD_ROMSIZE_KB_256
 
 config MAINBOARD_DIR
diff --git a/src/mainboard/asus/p2b-f/romstage.c b/src/mainboard/asus/p2b-f/romstage.c
index aa350f0..521ddbd 100644
--- a/src/mainboard/asus/p2b-f/romstage.c
+++ b/src/mainboard/asus/p2b-f/romstage.c
@@ -22,7 +22,6 @@
 #include <console/console.h>
 #include <southbridge/intel/i82371eb/i82371eb.h>
 #include <northbridge/intel/i440bx/raminit.h>
-#include "drivers/pc80/udelay_io.c"
 #include <delay.h>
 #include <cpu/x86/bist.h>
 #include <superio/winbond/common/winbond.h>
diff --git a/src/mainboard/asus/p2b-ls/Kconfig b/src/mainboard/asus/p2b-ls/Kconfig
index 9045f61..967ebd9 100644
--- a/src/mainboard/asus/p2b-ls/Kconfig
+++ b/src/mainboard/asus/p2b-ls/Kconfig
@@ -21,7 +21,6 @@
 	select SOUTHBRIDGE_INTEL_I82371EB
 	select SUPERIO_WINBOND_W83977TF
 	select HAVE_PIRQ_TABLE
-	select UDELAY_TSC
 	select BOARD_ROMSIZE_KB_256
 	select SDRAMPWR_4DIMM
 
diff --git a/src/mainboard/asus/p2b-ls/romstage.c b/src/mainboard/asus/p2b-ls/romstage.c
index e5f66e9..5808bb8 100644
--- a/src/mainboard/asus/p2b-ls/romstage.c
+++ b/src/mainboard/asus/p2b-ls/romstage.c
@@ -22,7 +22,6 @@
 #include <console/console.h>
 #include <southbridge/intel/i82371eb/i82371eb.h>
 #include <northbridge/intel/i440bx/raminit.h>
-#include "drivers/pc80/udelay_io.c"
 #include <delay.h>
 #include <cpu/x86/bist.h>
 #include <superio/winbond/common/winbond.h>
diff --git a/src/mainboard/asus/p2b/Kconfig b/src/mainboard/asus/p2b/Kconfig
index 46bff7c..6b934a5 100644
--- a/src/mainboard/asus/p2b/Kconfig
+++ b/src/mainboard/asus/p2b/Kconfig
@@ -21,7 +21,6 @@
 	select SOUTHBRIDGE_INTEL_I82371EB
 	select SUPERIO_WINBOND_W83977TF
 	select HAVE_PIRQ_TABLE
-	select UDELAY_TSC
 	select BOARD_ROMSIZE_KB_256
 	select HAVE_ACPI_TABLES
 
diff --git a/src/mainboard/asus/p2b/romstage.c b/src/mainboard/asus/p2b/romstage.c
index 35ee9bf..f075b4e 100644
--- a/src/mainboard/asus/p2b/romstage.c
+++ b/src/mainboard/asus/p2b/romstage.c
@@ -22,7 +22,6 @@
 #include <console/console.h>
 #include <southbridge/intel/i82371eb/i82371eb.h>
 #include <northbridge/intel/i440bx/raminit.h>
-#include "drivers/pc80/udelay_io.c"
 #include <delay.h>
 #include <cpu/x86/bist.h>
 #include <superio/winbond/common/winbond.h>
diff --git a/src/mainboard/asus/p3b-f/Kconfig b/src/mainboard/asus/p3b-f/Kconfig
index e6fab97..212aa93 100644
--- a/src/mainboard/asus/p3b-f/Kconfig
+++ b/src/mainboard/asus/p3b-f/Kconfig
@@ -21,7 +21,6 @@
 	select SOUTHBRIDGE_INTEL_I82371EB
 	select SUPERIO_WINBOND_W83977TF
 	select HAVE_PIRQ_TABLE
-	select UDELAY_TSC
 	select BOARD_ROMSIZE_KB_256
 	select SDRAMPWR_4DIMM
 
diff --git a/src/mainboard/asus/p3b-f/romstage.c b/src/mainboard/asus/p3b-f/romstage.c
index 7a4108d..89e3795 100644
--- a/src/mainboard/asus/p3b-f/romstage.c
+++ b/src/mainboard/asus/p3b-f/romstage.c
@@ -22,7 +22,6 @@
 #include <console/console.h>
 #include <southbridge/intel/i82371eb/i82371eb.h>
 #include <northbridge/intel/i440bx/raminit.h>
-#include "drivers/pc80/udelay_io.c"
 #include <delay.h>
 #include <cpu/x86/bist.h>
 #include <superio/winbond/common/winbond.h>
diff --git a/src/mainboard/azza/pt-6ibd/Kconfig b/src/mainboard/azza/pt-6ibd/Kconfig
index 24809cc..67c9fa4 100644
--- a/src/mainboard/azza/pt-6ibd/Kconfig
+++ b/src/mainboard/azza/pt-6ibd/Kconfig
@@ -21,7 +21,6 @@
 	select SOUTHBRIDGE_INTEL_I82371EB
 	select SUPERIO_WINBOND_W83977TF
 	select HAVE_PIRQ_TABLE
-	select UDELAY_TSC
 	select BOARD_ROMSIZE_KB_256
 
 config MAINBOARD_DIR
diff --git a/src/mainboard/azza/pt-6ibd/romstage.c b/src/mainboard/azza/pt-6ibd/romstage.c
index eeb8a8c..8ed2fb1 100644
--- a/src/mainboard/azza/pt-6ibd/romstage.c
+++ b/src/mainboard/azza/pt-6ibd/romstage.c
@@ -22,7 +22,6 @@
 #include <console/console.h>
 #include <southbridge/intel/i82371eb/i82371eb.h>
 #include <northbridge/intel/i440bx/raminit.h>
-#include "drivers/pc80/udelay_io.c"
 #include <delay.h>
 #include <cpu/x86/bist.h>
 #include <superio/winbond/common/winbond.h>
diff --git a/src/mainboard/biostar/m6tba/Kconfig b/src/mainboard/biostar/m6tba/Kconfig
index 66e270c..6cb07e2ca 100644
--- a/src/mainboard/biostar/m6tba/Kconfig
+++ b/src/mainboard/biostar/m6tba/Kconfig
@@ -21,7 +21,6 @@
 	select SOUTHBRIDGE_INTEL_I82371EB
 	select SUPERIO_SMSC_SMSCSUPERIO
 	select HAVE_PIRQ_TABLE
-	select UDELAY_TSC
 	select BOARD_ROMSIZE_KB_256
 
 config MAINBOARD_DIR
diff --git a/src/mainboard/biostar/m6tba/romstage.c b/src/mainboard/biostar/m6tba/romstage.c
index d2900c1..eb7ef25 100644
--- a/src/mainboard/biostar/m6tba/romstage.c
+++ b/src/mainboard/biostar/m6tba/romstage.c
@@ -22,7 +22,6 @@
 #include <console/console.h>
 #include <southbridge/intel/i82371eb/i82371eb.h>
 #include <northbridge/intel/i440bx/raminit.h>
-#include "drivers/pc80/udelay_io.c"
 #include <delay.h>
 #include <cpu/x86/bist.h>
 #include <superio/smsc/smscsuperio/smscsuperio.h>
diff --git a/src/mainboard/compaq/deskpro_en_sff_p600/Kconfig b/src/mainboard/compaq/deskpro_en_sff_p600/Kconfig
index 61fbb7d..bdb2157 100644
--- a/src/mainboard/compaq/deskpro_en_sff_p600/Kconfig
+++ b/src/mainboard/compaq/deskpro_en_sff_p600/Kconfig
@@ -22,7 +22,6 @@
 	# should be SUPERIO_NSC_PC97307!
 	select SUPERIO_NSC_PC97317
 	select HAVE_PIRQ_TABLE
-	select UDELAY_TSC
 	select BOARD_ROMSIZE_KB_256
 
 config MAINBOARD_DIR
diff --git a/src/mainboard/compaq/deskpro_en_sff_p600/romstage.c b/src/mainboard/compaq/deskpro_en_sff_p600/romstage.c
index 89578b3..bf12a34 100644
--- a/src/mainboard/compaq/deskpro_en_sff_p600/romstage.c
+++ b/src/mainboard/compaq/deskpro_en_sff_p600/romstage.c
@@ -22,7 +22,6 @@
 #include <console/console.h>
 #include <southbridge/intel/i82371eb/i82371eb.h>
 #include <northbridge/intel/i440bx/raminit.h>
-#include "drivers/pc80/udelay_io.c"
 #include <delay.h>
 #include <cpu/x86/bist.h>
 /* FIXME: This should be PC97307 (but it's buggy at the moment)! */
diff --git a/src/mainboard/emulation/qemu-i440fx/romstage.c b/src/mainboard/emulation/qemu-i440fx/romstage.c
index f16f8dd..d03c8ab 100644
--- a/src/mainboard/emulation/qemu-i440fx/romstage.c
+++ b/src/mainboard/emulation/qemu-i440fx/romstage.c
@@ -22,7 +22,6 @@
 #include <console/console.h>
 #include <cpu/x86/bist.h>
 #include <timestamp.h>
-#include "drivers/pc80/udelay_io.c"
 #include <delay.h>
 #include <cpu/x86/lapic.h>
 
diff --git a/src/mainboard/emulation/qemu-q35/romstage.c b/src/mainboard/emulation/qemu-q35/romstage.c
index d54d8b0..fb0bccf 100644
--- a/src/mainboard/emulation/qemu-q35/romstage.c
+++ b/src/mainboard/emulation/qemu-q35/romstage.c
@@ -23,7 +23,6 @@
 #include <southbridge/intel/i82801ix/i82801ix.h>
 #include <cpu/x86/bist.h>
 #include <timestamp.h>
-#include "drivers/pc80/udelay_io.c"
 #include <delay.h>
 #include <cpu/x86/lapic.h>
 
diff --git a/src/mainboard/gigabyte/ga-6bxc/Kconfig b/src/mainboard/gigabyte/ga-6bxc/Kconfig
index 239e704..7e57819 100644
--- a/src/mainboard/gigabyte/ga-6bxc/Kconfig
+++ b/src/mainboard/gigabyte/ga-6bxc/Kconfig
@@ -21,7 +21,6 @@
 	select SOUTHBRIDGE_INTEL_I82371EB
 	select SUPERIO_ITE_IT8671F
 	select HAVE_PIRQ_TABLE
-	select UDELAY_TSC
 	select BOARD_ROMSIZE_KB_256
 
 config MAINBOARD_DIR
diff --git a/src/mainboard/gigabyte/ga-6bxc/romstage.c b/src/mainboard/gigabyte/ga-6bxc/romstage.c
index 8c36f6f..4128d30 100644
--- a/src/mainboard/gigabyte/ga-6bxc/romstage.c
+++ b/src/mainboard/gigabyte/ga-6bxc/romstage.c
@@ -22,7 +22,6 @@
 #include <console/console.h>
 #include <southbridge/intel/i82371eb/i82371eb.h>
 #include <northbridge/intel/i440bx/raminit.h>
-#include "drivers/pc80/udelay_io.c"
 #include <delay.h>
 #include <cpu/x86/bist.h>
 #include <superio/ite/it8671f/it8671f.h>
diff --git a/src/mainboard/gigabyte/ga-6bxe/Kconfig b/src/mainboard/gigabyte/ga-6bxe/Kconfig
index 4e12b93..b225ed0 100644
--- a/src/mainboard/gigabyte/ga-6bxe/Kconfig
+++ b/src/mainboard/gigabyte/ga-6bxe/Kconfig
@@ -22,7 +22,6 @@
 	select SOUTHBRIDGE_INTEL_I82371EB
 	select SUPERIO_ITE_IT8671F
 	select HAVE_PIRQ_TABLE
-	select UDELAY_TSC
 	select BOARD_ROMSIZE_KB_256
 	select SDRAMPWR_4DIMM
 
diff --git a/src/mainboard/gigabyte/ga-6bxe/romstage.c b/src/mainboard/gigabyte/ga-6bxe/romstage.c
index 58360c6..fac7416 100644
--- a/src/mainboard/gigabyte/ga-6bxe/romstage.c
+++ b/src/mainboard/gigabyte/ga-6bxe/romstage.c
@@ -22,7 +22,6 @@
 #include <console/console.h>
 #include <southbridge/intel/i82371eb/i82371eb.h>
 #include <northbridge/intel/i440bx/raminit.h>
-#include "drivers/pc80/udelay_io.c"
 #include <delay.h>
 #include <cpu/x86/bist.h>
 #include <superio/ite/it8671f/it8671f.h>
diff --git a/src/mainboard/lanner/em8510/romstage.c b/src/mainboard/lanner/em8510/romstage.c
index 76d9b94b..0a8c4d7 100644
--- a/src/mainboard/lanner/em8510/romstage.c
+++ b/src/mainboard/lanner/em8510/romstage.c
@@ -23,7 +23,6 @@
 #include <stdlib.h>
 #include <lib.h>
 #include <spd.h>
-#include "drivers/pc80/udelay_io.c"
 #include <pc80/mc146818rtc.h>
 #include <console/console.h>
 #include <southbridge/intel/i82801dx/i82801dx.h>
diff --git a/src/mainboard/msi/ms6119/Kconfig b/src/mainboard/msi/ms6119/Kconfig
index 0a25e80..c64e40b 100644
--- a/src/mainboard/msi/ms6119/Kconfig
+++ b/src/mainboard/msi/ms6119/Kconfig
@@ -21,7 +21,6 @@
 	select SOUTHBRIDGE_INTEL_I82371EB
 	select SUPERIO_WINBOND_W83977TF
 	select HAVE_PIRQ_TABLE
-	select UDELAY_TSC
 	select BOARD_ROMSIZE_KB_256
 
 config MAINBOARD_DIR
diff --git a/src/mainboard/msi/ms6119/romstage.c b/src/mainboard/msi/ms6119/romstage.c
index 3031149..55e2eee 100644
--- a/src/mainboard/msi/ms6119/romstage.c
+++ b/src/mainboard/msi/ms6119/romstage.c
@@ -22,7 +22,6 @@
 #include <console/console.h>
 #include <southbridge/intel/i82371eb/i82371eb.h>
 #include <northbridge/intel/i440bx/raminit.h>
-#include "drivers/pc80/udelay_io.c"
 #include <delay.h>
 #include <cpu/x86/bist.h>
 #include <superio/winbond/common/winbond.h>
diff --git a/src/mainboard/msi/ms6147/Kconfig b/src/mainboard/msi/ms6147/Kconfig
index 6697c50..814855b 100644
--- a/src/mainboard/msi/ms6147/Kconfig
+++ b/src/mainboard/msi/ms6147/Kconfig
@@ -21,7 +21,6 @@
 	select SOUTHBRIDGE_INTEL_I82371EB
 	select SUPERIO_WINBOND_W83977TF
 	select HAVE_PIRQ_TABLE
-	select UDELAY_TSC
 	select BOARD_ROMSIZE_KB_256
 
 config MAINBOARD_DIR
diff --git a/src/mainboard/msi/ms6147/romstage.c b/src/mainboard/msi/ms6147/romstage.c
index 53e14b3..00ad38c 100644
--- a/src/mainboard/msi/ms6147/romstage.c
+++ b/src/mainboard/msi/ms6147/romstage.c
@@ -22,7 +22,6 @@
 #include <console/console.h>
 #include <southbridge/intel/i82371eb/i82371eb.h>
 #include <northbridge/intel/i440bx/raminit.h>
-#include "drivers/pc80/udelay_io.c"
 #include <delay.h>
 #include <cpu/x86/bist.h>
 #include <superio/winbond/common/winbond.h>
diff --git a/src/mainboard/msi/ms6156/Kconfig b/src/mainboard/msi/ms6156/Kconfig
index e48505d..892d45c 100644
--- a/src/mainboard/msi/ms6156/Kconfig
+++ b/src/mainboard/msi/ms6156/Kconfig
@@ -21,7 +21,6 @@
 	select SOUTHBRIDGE_INTEL_I82371EB
 	select SUPERIO_WINBOND_W83977TF
 	select HAVE_PIRQ_TABLE
-	select UDELAY_TSC
 	select BOARD_ROMSIZE_KB_256
 
 config MAINBOARD_DIR
diff --git a/src/mainboard/msi/ms6156/romstage.c b/src/mainboard/msi/ms6156/romstage.c
index 0a289d3..4ad2c50 100644
--- a/src/mainboard/msi/ms6156/romstage.c
+++ b/src/mainboard/msi/ms6156/romstage.c
@@ -22,7 +22,6 @@
 #include <console/console.h>
 #include <southbridge/intel/i82371eb/i82371eb.h>
 #include <northbridge/intel/i440bx/raminit.h>
-#include "drivers/pc80/udelay_io.c"
 #include <delay.h>
 #include <cpu/x86/bist.h>
 #include <superio/winbond/common/winbond.h>
diff --git a/src/mainboard/msi/ms6178/romstage.c b/src/mainboard/msi/ms6178/romstage.c
index d83bc02..aaad2ea 100644
--- a/src/mainboard/msi/ms6178/romstage.c
+++ b/src/mainboard/msi/ms6178/romstage.c
@@ -25,7 +25,6 @@
 #include <northbridge/intel/i82810/raminit.h>
 #include <cpu/x86/bist.h>
 #include <southbridge/intel/i82801ax/i82801ax.h>
-#include "drivers/pc80/udelay_io.c"
 #include <lib.h>
 
 #define SERIAL_DEV PNP_DEV(0x2e, W83627HF_SP1)
diff --git a/src/mainboard/nokia/ip530/Kconfig b/src/mainboard/nokia/ip530/Kconfig
index d5bc669..8d86257 100644
--- a/src/mainboard/nokia/ip530/Kconfig
+++ b/src/mainboard/nokia/ip530/Kconfig
@@ -25,7 +25,6 @@
 	select BOARD_ROMSIZE_KB_512
 	select PIRQ_ROUTE
 	select HAVE_PIRQ_TABLE
-	select UDELAY_TSC
 	select SDRAMPWR_4DIMM
 
 config MAINBOARD_DIR
diff --git a/src/mainboard/nokia/ip530/romstage.c b/src/mainboard/nokia/ip530/romstage.c
index 9d9b680..42a5ac2 100644
--- a/src/mainboard/nokia/ip530/romstage.c
+++ b/src/mainboard/nokia/ip530/romstage.c
@@ -22,7 +22,6 @@
 #include <console/console.h>
 #include <southbridge/intel/i82371eb/i82371eb.h>
 #include <northbridge/intel/i440bx/raminit.h>
-#include "drivers/pc80/udelay_io.c"
 #include <delay.h>
 #include <cpu/x86/bist.h>
 #include <superio/smsc/smscsuperio/smscsuperio.h>
diff --git a/src/mainboard/soyo/sy-6ba-plus-iii/Kconfig b/src/mainboard/soyo/sy-6ba-plus-iii/Kconfig
index d09a6ea..1b5931a 100644
--- a/src/mainboard/soyo/sy-6ba-plus-iii/Kconfig
+++ b/src/mainboard/soyo/sy-6ba-plus-iii/Kconfig
@@ -21,7 +21,6 @@
 	select SOUTHBRIDGE_INTEL_I82371EB
 	select SUPERIO_ITE_IT8671F
 	select HAVE_PIRQ_TABLE
-	select UDELAY_TSC
 	select BOARD_ROMSIZE_KB_256
 
 config MAINBOARD_DIR
diff --git a/src/mainboard/soyo/sy-6ba-plus-iii/romstage.c b/src/mainboard/soyo/sy-6ba-plus-iii/romstage.c
index 9a8f0f8..1e25602 100644
--- a/src/mainboard/soyo/sy-6ba-plus-iii/romstage.c
+++ b/src/mainboard/soyo/sy-6ba-plus-iii/romstage.c
@@ -22,7 +22,6 @@
 #include <console/console.h>
 #include <southbridge/intel/i82371eb/i82371eb.h>
 #include <northbridge/intel/i440bx/raminit.h>
-#include "drivers/pc80/udelay_io.c"
 #include <delay.h>
 #include <cpu/x86/bist.h>
 #include <superio/ite/it8671f/it8671f.h>
diff --git a/src/mainboard/tyan/s1846/Kconfig b/src/mainboard/tyan/s1846/Kconfig
index 9d2ad1e..2d6eeb7 100644
--- a/src/mainboard/tyan/s1846/Kconfig
+++ b/src/mainboard/tyan/s1846/Kconfig
@@ -20,7 +20,6 @@
 	select NORTHBRIDGE_INTEL_I440BX
 	select SOUTHBRIDGE_INTEL_I82371EB
 	select SUPERIO_NSC_PC87309
-	select UDELAY_TSC
 	select BOARD_ROMSIZE_KB_256
 
 config MAINBOARD_DIR
diff --git a/src/mainboard/tyan/s1846/romstage.c b/src/mainboard/tyan/s1846/romstage.c
index 2783dbe..5cdc56d 100644
--- a/src/mainboard/tyan/s1846/romstage.c
+++ b/src/mainboard/tyan/s1846/romstage.c
@@ -22,7 +22,6 @@
 #include <console/console.h>
 #include <southbridge/intel/i82371eb/i82371eb.h>
 #include <northbridge/intel/i440bx/raminit.h>
-#include "drivers/pc80/udelay_io.c"
 #include <delay.h>
 #include <cpu/x86/bist.h>
 #include <superio/nsc/pc87309/pc87309.h>
diff --git a/src/northbridge/intel/i440bx/Kconfig b/src/northbridge/intel/i440bx/Kconfig
index 828c693..3f574a4 100644
--- a/src/northbridge/intel/i440bx/Kconfig
+++ b/src/northbridge/intel/i440bx/Kconfig
@@ -17,6 +17,7 @@
 	bool
 	select HAVE_DEBUG_RAM_SETUP
 	select LATE_CBMEM_INIT
+	select UDELAY_IO
 
 config SDRAMPWR_4DIMM
 	bool