From cde428079669291527388f2b416db95a0e3edc68 Mon Sep 17 00:00:00 2001
From: Matt DeVillier <matt.devillier@gmail.com>
Date: Sun, 31 Aug 2025 17:39:12 -0500
Subject: [PATCH] soc/intel/apollolake: Add CFR objects for existing options

Add a header with CFR objects for existing configuration options,
so that supported boards can make use of them without duplication.

CFR options are added for the following options:
- legacy_8254_timer
- s0ix_enable
- vtd

TEST=build/boot google/reef with CFR support

Change-Id: Ia58bf53f93742417c2aac683c96f7c8f382a35c0
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/90309
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Jason Glenesk <jason.glenesk@gmail.com>
---
 src/soc/intel/apollolake/include/soc/cfr.h | 49 ++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 src/soc/intel/apollolake/include/soc/cfr.h

diff --git a/src/soc/intel/apollolake/include/soc/cfr.h b/src/soc/intel/apollolake/include/soc/cfr.h
new file mode 100644
index 0000000000..df4a9200cc
--- /dev/null
+++ b/src/soc/intel/apollolake/include/soc/cfr.h
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+/*
+ * CFR enums and structs which are used to control SoC settings.
+ */
+
+#ifndef _APOLLOLAKE_CFR_H_
+#define _APOLLOLAKE_CFR_H_
+
+#include <drivers/option/cfr_frontend.h>
+#include <soc/soc_chip.h>
+
+/* Legacy 8254 Timer */
+static const struct sm_object legacy_8254_timer = SM_DECLARE_ENUM({
+	.opt_name	= "legacy_8254_timer",
+	.ui_name	= "Legacy 8254 Timer",
+	.ui_helptext	= "Enable the legacy 8254 timer by disabling clock gating.",
+	.default_value	= 0,
+	.values		= (const struct sm_enum_value[]) {
+				{ "Disabled",		0	},
+				{ "Enabled",		1	},
+				SM_ENUM_VALUE_END		},
+});
+
+/* S0ix Enable */
+static const struct sm_object s0ix_enable = SM_DECLARE_ENUM({
+	.opt_name	= "s0ix_enable",
+	.ui_name	= "Modern Standby (S0ix)",
+	.ui_helptext	= "Enabled: use Modern Standby / S0ix. Disabled: use APCI S3 sleep",
+	.default_value	= 1,
+	.values		= (const struct sm_enum_value[]) {
+				{ "Disabled",		0	},
+				{ "Enabled",		1	},
+				SM_ENUM_VALUE_END		},
+});
+
+/* VT-d */
+static const struct sm_object vtd = SM_DECLARE_ENUM({
+	.opt_name	= "vtd",
+	.ui_name	= "VT-d",
+	.ui_helptext	= "Enable or disable Intel VT-d (virtualization)",
+	.default_value	= 1,
+	.values		= (const struct sm_enum_value[]) {
+				{ "Disabled",		0	},
+				{ "Enabled",		1	},
+				SM_ENUM_VALUE_END		},
+});
+
+#endif /* _APOLLOLAKE_CFR_H_ */