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authorJason Wright <jason@cvs.openbsd.org>2001-08-19 05:21:39 +0000
committerJason Wright <jason@cvs.openbsd.org>2001-08-19 05:21:39 +0000
commitb1557139df023d9b579e549469144cc917498bfc (patch)
treea81a962889a7562ca535a44ba9c86b94d584f9a6 /sys/arch/sparc64/dev/ebusreg.h
parentef7d382308d2792d80f735eca09fd3af06dbb586 (diff)
Lot of stuff... Some from NetBSD, some from OpenBSD, minor modifications
Diffstat (limited to 'sys/arch/sparc64/dev/ebusreg.h')
-rw-r--r--sys/arch/sparc64/dev/ebusreg.h95
1 files changed, 95 insertions, 0 deletions
diff --git a/sys/arch/sparc64/dev/ebusreg.h b/sys/arch/sparc64/dev/ebusreg.h
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index 00000000000..5ef7651212d
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+++ b/sys/arch/sparc64/dev/ebusreg.h
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+/* $NetBSD: ebusreg.h,v 1.1 1999/06/04 13:29:13 mrg Exp $ */
+
+/*
+ * Copyright (c) 1999 Matthew R. Green
+ * All rights reserved.
+ *
+ * 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.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+#ifndef _SPARC64_DEV_EBUSREG_H_
+#define _SPARC64_DEV_EBUSREG_H_
+
+/*
+ * UltraSPARC `ebus'
+ *
+ * The `ebus' bus is designed to plug traditional PC-ISA devices into
+ * an SPARC system with as few costs as possible, without sacrificing
+ * to performance. Typically, it is implemented in the PCIO IC from
+ * SME, which also implements a `hme-compatible' PCI network device
+ * (`network'). The ebus has 4 DMA channels, similar to the DMA seen
+ * in the ESP SCSI DMA.
+ *
+ * Typical UltraSPARC systems have a NatSemi SuperIO IC to provide
+ * serial ports for the keyboard and mouse (`se'), floppy disk
+ * controller (`fdthree'), parallel port controller (`bpp') connected
+ * to the ebus, and a PCI-IDE controller (connected directly to the
+ * PCI bus, of course), as well as a Siemens Nixdorf SAB82532 dual
+ * channel serial controller (`su' providing ttya and ttyb), an MK48T59
+ * EEPROM/clock controller (also where the idprom, including the
+ * ethernet address, is located), the audio system (`SUNW,CS4231', same
+ * as other UltraSPARC and some SPARC systems), and other various
+ * internal devices found on traditional SPARC systems such as the
+ * `power', `flashprom', etc., devices.
+ *
+ * The ebus uses an interrupt mapping scheme similar to PCI, though
+ * the actual structures are different.
+ */
+
+/*
+ * ebus PROM structures
+ */
+
+struct ebus_regs {
+ u_int32_t hi; /* high bits of physaddr */
+ u_int32_t lo;
+ u_int32_t size;
+};
+
+#define EBUS_PADDR_FROM_REG(reg) ((((paddr_t)((reg)->hi)) << 32UL) | ((paddr_t)(reg)->lo))
+
+struct ebus_ranges {
+ u_int32_t child_hi; /* child high phys addr */
+ u_int32_t child_lo; /* child low phys addr */
+ u_int32_t phys_hi; /* parent high phys addr */
+ u_int32_t phys_mid; /* parent mid phys addr */
+ u_int32_t phys_lo; /* parent low phys addr */
+ u_int32_t size;
+};
+
+struct ebus_interrupt_map {
+ u_int32_t hi; /* high phys addr mask */
+ u_int32_t lo; /* low phys addr mask */
+ u_int32_t intr; /* interrupt mask */
+ int32_t cnode; /* child node */
+ u_int32_t cintr; /* child interrupt */
+};
+
+struct ebus_interrupt_map_mask {
+ u_int32_t hi; /* high phys addr */
+ u_int32_t lo; /* low phys addr */
+ u_int32_t intr; /* interrupt */
+};
+
+#endif /* _SPARC64_DEV_EBUSREG_H_ */