1 files changed, 51 insertions, 0 deletions
diff --git a/sys/arch/i386/pci/gscpmreg.h b/sys/arch/i386/pci/gscpmreg.h
new file mode 100644
index 00000000000..4ee9b1a1b7d
--- /dev/null
+++ b/sys/arch/i386/pci/gscpmreg.h
@@ -0,0 +1,51 @@
+/*	$OpenBSD: gscpmreg.h,v 1.1 2004/09/15 20:28:53 grange Exp $	*/
+/*
+ * Copyright (c) 2004 Alexander Yurchenko <grange@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _DEV_PCI_GSCPMREG_H_
+#define _DEV_PCI_GSCPMREG_H_
+
+/*
+ * National Semiconductor Geode SC1100 SMI/ACPI module register definitions.
+ */
+
+/* PCI configuration space */
+#define GSCPM_ACPIBASE		0x40	/* ACPI I/O space base address */
+#define GSCPM_ACPISIZE		256	/* ACPI I/O space size */
+
+/* ACPI I/O space */
+#define GSCPM_P_CNT		0x00	/* processor control */
+#define		GSCPM_P_CNT_CLK(val)	((val) & 0x7)
+#define		GSCPM_P_CNT_THTEN	(1 << 4)  /* throttle enable */
+#define GSCPM_PM_TMR		0x1c	/* PM timer */
+
+/* CPU throttling values */
+static const struct {
+	int level;
+	int value;
+} gscpm_tht[] = {
+	{ 88, 1 },
+	{ 75, 2 },
+	{ 63, 3 },
+	{ 50, 4 },
+	{ 38, 5 },
+	{ 25, 6 },
+	{ 13, 7 }
+};
+
+#define GSCPM_THT_LEVELS (sizeof(gscpm_tht) / sizeof(gscpm_tht[0]))
+
+#endif	/* !_DEV_PCI_GSCPMREG_H_ */