From bf6b83abe06ff53033e7cd74134972de6791cf26 Mon Sep 17 00:00:00 2001
From: Martin Roth <martinroth@google.com>
Date: Sun, 11 Oct 2015 10:37:02 +0200
Subject: Revert "Remove sandybridge and ivybridge FSP code path"

Please don't remove chipsets and mainboards without discussion and input
from the owners. Someone was asking about cougar canyon 2 just a couple
of weeks ago - there's obviously still interest.

This reverts commit fb50124d22014742b6990a95df87a7a828e891b6.

Change-Id: Icd7dcea21fa4a7808b25bb8727020701aeebffc9
Signed-off-by: Martin Roth <martinroth@google.com>
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/12128
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
---
 src/cpu/intel/fsp_model_206ax/acpi/cpu.asl | 101 +++++++++++++++++++++++++++++
 1 file changed, 101 insertions(+)
 create mode 100644 src/cpu/intel/fsp_model_206ax/acpi/cpu.asl

(limited to 'src/cpu/intel/fsp_model_206ax/acpi')

diff --git a/src/cpu/intel/fsp_model_206ax/acpi/cpu.asl b/src/cpu/intel/fsp_model_206ax/acpi/cpu.asl
new file mode 100644
index 0000000000..114dbe3b98
--- /dev/null
+++ b/src/cpu/intel/fsp_model_206ax/acpi/cpu.asl
@@ -0,0 +1,101 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 The ChromiumOS Authors.  All rights reserved.
+ *
+ * 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.
+ */
+
+/* These devices are created at runtime */
+External (\_PR.CP00, DeviceObj)
+External (\_PR.CP01, DeviceObj)
+External (\_PR.CP02, DeviceObj)
+External (\_PR.CP03, DeviceObj)
+External (\_PR.CP04, DeviceObj)
+External (\_PR.CP05, DeviceObj)
+External (\_PR.CP06, DeviceObj)
+External (\_PR.CP07, DeviceObj)
+
+/* Notify OS to re-read CPU tables, assuming ^2 CPU count */
+Method (PNOT)
+{
+	If (LGreaterEqual (\PCNT, 2)) {
+		Notify (\_PR.CP00, 0x81)  // _CST
+		Notify (\_PR.CP01, 0x81)  // _CST
+	}
+	If (LGreaterEqual (\PCNT, 4)) {
+		Notify (\_PR.CP02, 0x81)  // _CST
+		Notify (\_PR.CP03, 0x81)  // _CST
+	}
+	If (LGreaterEqual (\PCNT, 8)) {
+		Notify (\_PR.CP04, 0x81)  // _CST
+		Notify (\_PR.CP05, 0x81)  // _CST
+		Notify (\_PR.CP06, 0x81)  // _CST
+		Notify (\_PR.CP07, 0x81)  // _CST
+	}
+}
+
+/* Notify OS to re-read CPU _PPC limit, assuming ^2 CPU count */
+Method (PPCN)
+{
+	If (LGreaterEqual (\PCNT, 2)) {
+		Notify (\_PR.CP00, 0x80)  // _PPC
+		Notify (\_PR.CP01, 0x80)  // _PPC
+	}
+	If (LGreaterEqual (\PCNT, 4)) {
+		Notify (\_PR.CP02, 0x80)  // _PPC
+		Notify (\_PR.CP03, 0x80)  // _PPC
+	}
+	If (LGreaterEqual (\PCNT, 8)) {
+		Notify (\_PR.CP04, 0x80)  // _PPC
+		Notify (\_PR.CP05, 0x80)  // _PPC
+		Notify (\_PR.CP06, 0x80)  // _PPC
+		Notify (\_PR.CP07, 0x80)  // _PPC
+	}
+}
+
+/* Notify OS to re-read Throttle Limit tables, assuming ^2 CPU count */
+Method (TNOT)
+{
+	If (LGreaterEqual (\PCNT, 2)) {
+		Notify (\_PR.CP00, 0x82)  // _TPC
+		Notify (\_PR.CP01, 0x82)  // _TPC
+	}
+	If (LGreaterEqual (\PCNT, 4)) {
+		Notify (\_PR.CP02, 0x82)  // _TPC
+		Notify (\_PR.CP03, 0x82)  // _TPC
+	}
+	If (LGreaterEqual (\PCNT, 8)) {
+		Notify (\_PR.CP04, 0x82)  // _TPC
+		Notify (\_PR.CP05, 0x82)  // _TPC
+		Notify (\_PR.CP06, 0x82)  // _TPC
+		Notify (\_PR.CP07, 0x82)  // _TPC
+	}
+}
+
+/* Return a package containing enabled processor entries */
+Method (PPKG)
+{
+	If (LGreaterEqual (\PCNT, 8)) {
+		Return (Package() {\_PR.CP00, \_PR.CP01, \_PR.CP02, \_PR.CP03,
+				   \_PR.CP04, \_PR.CP05, \_PR.CP06, \_PR.CP07})
+	} ElseIf (LGreaterEqual (\PCNT, 4)) {
+		Return (Package() {\_PR.CP00, \_PR.CP01, \_PR.CP02, \_PR.CP03})
+	} ElseIf (LGreaterEqual (\PCNT, 2)) {
+		Return (Package() {\_PR.CP00, \_PR.CP01})
+	} Else {
+		Return (Package() {\_PR.CP00})
+	}
+}
-- 
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