FDT(4): Import from FreeBSD

1 files changed, 103 insertions, 0 deletions

diff --git a/freebsd/sys/dev/ofw/ofw_pci.h b/freebsd/sys/dev/ofw/ofw_pci.h
new file mode 100644
index 00000000..eb60c5ba
--- /dev/null
+++ b/freebsd/sys/dev/ofw/ofw_pci.h
@@ -0,0 +1,103 @@
+/*-
+ * Copyright (c) 1999 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
+ * NASA Ames Research Center.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ *	from: NetBSD: ofw_pci.h,v 1.5 2003/10/22 09:04:39 mjl Exp
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _DEV_OFW_OFW_PCI_H_
+#define	_DEV_OFW_OFW_PCI_H_
+
+/*
+ * PCI Bus Binding to:
+ *
+ * IEEE Std 1275-1994
+ * Standard for Boot (Initialization Configuration) Firmware
+ *
+ * Revision 2.1
+ */
+
+/*
+ * Section 2.2.1. Physical Address Formats
+ *
+ * A PCI physical address is represented by 3 address cells:
+ *
+ *	phys.hi cell:	npt000ss bbbbbbbb dddddfff rrrrrrrr
+ *	phys.mid cell:	hhhhhhhh hhhhhhhh hhhhhhhh hhhhhhhh
+ *	phys.lo cell:	llllllll llllllll llllllll llllllll
+ *
+ *	n	nonrelocatable
+ *	p	prefetchable
+ *	t	aliased below 1MB (memory) or 64k (i/o)
+ *	ss	space code
+ *	b	bus number
+ *	d	device number
+ *	f	function number
+ *	r	register number
+ *	h	high 32-bits of PCI address
+ *	l	low 32-bits of PCI address
+ */
+
+#define	OFW_PCI_PHYS_HI_NONRELOCATABLE	0x80000000
+#define	OFW_PCI_PHYS_HI_PREFETCHABLE	0x40000000
+#define	OFW_PCI_PHYS_HI_ALIASED		0x20000000
+#define	OFW_PCI_PHYS_HI_SPACEMASK	0x03000000
+#define	OFW_PCI_PHYS_HI_BUSMASK		0x00ff0000
+#define	OFW_PCI_PHYS_HI_BUSSHIFT	16
+#define	OFW_PCI_PHYS_HI_DEVICEMASK	0x0000f800
+#define	OFW_PCI_PHYS_HI_DEVICESHIFT	11
+#define	OFW_PCI_PHYS_HI_FUNCTIONMASK	0x00000700
+#define	OFW_PCI_PHYS_HI_FUNCTIONSHIFT	8
+#define	OFW_PCI_PHYS_HI_REGISTERMASK	0x000000ff
+
+#define	OFW_PCI_PHYS_HI_SPACE_CONFIG	0x00000000
+#define	OFW_PCI_PHYS_HI_SPACE_IO	0x01000000
+#define	OFW_PCI_PHYS_HI_SPACE_MEM32	0x02000000
+#define	OFW_PCI_PHYS_HI_SPACE_MEM64	0x03000000
+
+#define OFW_PCI_PHYS_HI_BUS(hi) \
+	(((hi) & OFW_PCI_PHYS_HI_BUSMASK) >> OFW_PCI_PHYS_HI_BUSSHIFT)
+#define OFW_PCI_PHYS_HI_DEVICE(hi) \
+	(((hi) & OFW_PCI_PHYS_HI_DEVICEMASK) >> OFW_PCI_PHYS_HI_DEVICESHIFT)
+#define OFW_PCI_PHYS_HI_FUNCTION(hi) \
+	(((hi) & OFW_PCI_PHYS_HI_FUNCTIONMASK) >> OFW_PCI_PHYS_HI_FUNCTIONSHIFT)
+
+/*
+ * This has the 3 32bit cell values, plus 2 more to make up a 64-bit size.
+ */
+struct ofw_pci_register {
+	u_int32_t	phys_hi;
+	u_int32_t	phys_mid;
+	u_int32_t	phys_lo;
+	u_int32_t	size_hi;
+	u_int32_t	size_lo;
+};
+
+#endif /* _DEV_OFW_OFW_PCI_H_ */