New patch to review for coreboot: gm45/raminit.c: Use LAPIC udelay instead of custom version

[Arthur Heymans]

Arthur Heymans ([e-mail]) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/17152

-gerrit

commit bed6660c916f53729d873530f26abc4f583a5354
Author: Arthur Heymans 
Date:   Thu Oct 27 00:31:41 2016 +0200

gm45/raminit.c: Use LAPIC udelay instead of custom version

This change may slow down the raminit by maximum 200usec,
    but reuses the the lapic udelay definition.

Change-Id: I60a68f8a7911b257c0eecda96f7c5bf302bb51ed
    Signed-off-by: Arthur Heymans 
---
 src/northbridge/intel/gm45/Kconfig      | 1 -
 src/northbridge/intel/gm45/Makefile.inc | 1 -
 src/northbridge/intel/gm45/raminit.c    | 6 +++---
 3 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/src/northbridge/intel/gm45/Kconfig b/src/northbridge/intel/gm45/Kconfig
index d254b9e..6ee6558 100644
--- a/src/northbridge/intel/gm45/Kconfig
+++ b/src/northbridge/intel/gm45/Kconfig
@@ -26,7 +26,6 @@ config NORTHBRIDGE_SPECIFIC_OPTIONS # dummy
    select VGA
    select INTEL_EDID
    select INTEL_GMA_ACPI
-	select UDELAY_TSC

config CBFS_SIZE
    hex
diff --git a/src/northbridge/intel/gm45/Makefile.inc b/src/northbridge/intel/gm45/Makefile.inc
index 794b2b9..ac5810b 100644
--- a/src/northbridge/intel/gm45/Makefile.inc
+++ b/src/northbridge/intel/gm45/Makefile.inc
@@ -17,7 +17,6 @@ ifeq ($(CONFIG_NORTHBRIDGE_INTEL_GM45),y)

romstage-y += early_init.c
 romstage-y += early_reset.c
-romstage-y += delay.c
 romstage-y += raminit.c
 romstage-y += raminit_rcomp_calibration.c
 romstage-y += raminit_receive_enable_calibration.c
diff --git a/src/northbridge/intel/gm45/raminit.c b/src/northbridge/intel/gm45/raminit.c
index 37b44cc..a2141cd 100644
--- a/src/northbridge/intel/gm45/raminit.c
+++ b/src/northbridge/intel/gm45/raminit.c
@@ -916,15 +916,15 @@ static void rcomp_initialization(const stepping_t stepping, const int sff)

static void dram_powerup(const int resume)
 {
-	udelay_from_reset(200);
+	udelay(200);
    MCHBAR32(CLKCFG_MCHBAR) = (MCHBAR32(CLKCFG_MCHBAR) & ~(1 << 3)) | (3 << 21);
    if (!resume) {
    	MCHBAR32(0x1434) |= (1 << 10);
-		ns100delay(2);
+		udelay(1);
    }
    MCHBAR32(0x1434) |= (1 << 6);
    if (!resume) {
-		ns100delay(1);
+		udelay(1);
    	MCHBAR32(0x1434) |= (1 << 9);
    	MCHBAR32(0x1434) &= ~(1 << 10);
    	udelay(500);