sb/intel/bd82x6x: Use SOUTHBRIDGE_INTEL_COMMON_PMCLIB

Use common code to detect ACPI S3.

Tested on Lenovo T520 (Intel Sandy Bridge) with Change
I8afc9f966033f45823f5dfde279e0f66de165e93 applied as well.
Still boots to OS, no errors visible in dmesg and S3 resume is working.

Change-Id: I283a841575430f2f179997db8d2f08fa3978a0bb
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32037
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

1 files changed, 0 insertions, 51 deletions

diff --git a/src/southbridge/intel/bd82x6x/early_pch_common.c b/src/southbridge/intel/bd82x6x/early_pch_common.c
deleted file mode 100644
index 2e9ad7f826..0000000000
--- a/src/southbridge/intel/bd82x6x/early_pch_common.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2008-2009 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.
- */
-
-#include <arch/io.h>
-#include <device/pci_def.h>
-#include <device/pci_ops.h>
-#include "pch.h"
-#include <arch/acpi.h>
-#include <console/console.h>
-
-#if ENV_ROMSTAGE
-int southbridge_detect_s3_resume(void)
-{
-	u32 pm1_cnt;
-	u16 pm1_sts;
-
-	/* Check PM1_STS[15] to see if we are waking from Sx */
-	pm1_sts = inw(DEFAULT_PMBASE + PM1_STS);
-
-	/* Read PM1_CNT[12:10] to determine which Sx state */
-	pm1_cnt = inl(DEFAULT_PMBASE + PM1_CNT);
-
-	if ((pm1_sts & WAK_STS) && ((pm1_cnt >> 10) & 7) == 5) {
-		if (acpi_s3_resume_allowed()) {
-			printk(BIOS_DEBUG, "Resume from S3 detected.\n");
-			/* Clear SLP_TYPE. This will break stage2 but
-			 * we care for that when we get there.
-			 */
-			outl(pm1_cnt & ~(7 << 10), DEFAULT_PMBASE + PM1_CNT);
-			return 1;
-		} else {
-			printk(BIOS_DEBUG, "Resume from S3 detected, but disabled.\n");
-		}
-	}
-
-	return 0;
-}
-#endif