Bring over the initial rewrite of the broadcom bus support found in their

SoCs and various chips (including, famously, their wifi chips.)

This is "just" (all 20,000 lines of it) code to enumerate the various
versions of busses inside these devices, including the PCI bridge and
the direct SIBA bridge found in MIPS chips.

It also includes shared code for some bus operations (suspend, resume, etc);
EEPROM/SROM/etc parsing and other things that are shared between chips.

Eventually this'll replace the code that bwi/bwn uses for the internal
bus, as well as some apparently upcoming mips74k broadcom SoC support
which uses bwn!

Thanks to Landon Fuller <landonf@landonf.org> for all this work!

Obtained from:	https://github.com/landonf/freebsd/compare/user/landonf/bcm4331-CURRENT

1 files changed, 97 insertions, 0 deletions

diff --git a/sys/dev/bhnd/bhnd_types.h b/sys/dev/bhnd/bhnd_types.h
new file mode 100644
index 000000000000..d31c00b07e28
--- /dev/null
+++ b/sys/dev/bhnd/bhnd_types.h
@@ -0,0 +1,97 @@
+/*-
+ * Copyright (c) 2015 Landon Fuller <landon@landonf.org>
+ * 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,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
+ *    redistribution must be conditioned upon including a substantially
+ *    similar Disclaimer requirement for further binary redistribution.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
+ * 
+ * $FreeBSD$
+ */
+
+#ifndef _BHND_BHND_TYPES_H_
+#define _BHND_BHND_TYPES_H_
+
+#include <sys/types.h>
+
+/** bhnd(4) device classes. */
+typedef enum {
+	BHND_DEVCLASS_CC,		/**< chipcommon i/o controller */
+	BHND_DEVCLASS_CC_B,		/**< chipcommon auxiliary controller */
+	BHND_DEVCLASS_PMU,		/**< pmu controller */
+	BHND_DEVCLASS_PCI,		/**< pci host/device bridge */
+	BHND_DEVCLASS_PCIE,		/**< pcie host/device bridge */
+	BHND_DEVCLASS_PCCARD,		/**< pcmcia host/device bridge */
+	BHND_DEVCLASS_RAM,		/**< internal RAM/SRAM */
+	BHND_DEVCLASS_MEMC,		/**< memory controller */
+	BHND_DEVCLASS_ENET,		/**< 802.3 MAC/PHY */
+	BHND_DEVCLASS_ENET_MAC,		/**< 802.3 MAC */
+	BHND_DEVCLASS_ENET_PHY,		/**< 802.3 PHY */
+	BHND_DEVCLASS_WLAN,		/**< 802.11 MAC/PHY/Radio */
+	BHND_DEVCLASS_WLAN_MAC,		/**< 802.11 MAC */
+	BHND_DEVCLASS_WLAN_PHY,		/**< 802.11 PHY */
+	BHND_DEVCLASS_CPU,		/**< cpu core */
+	BHND_DEVCLASS_SOC_ROUTER,	/**< interconnect router */
+	BHND_DEVCLASS_SOC_BRIDGE,	/**< interconnect host bridge */
+	BHND_DEVCLASS_EROM,		/**< bus device enumeration ROM */
+	BHND_DEVCLASS_NVRAM,		/**< nvram/flash controller */
+	BHND_DEVCLASS_OTHER,		/**< other / unknown */
+
+	BHND_DEVCLASS_INVALID		/**< no/invalid class */
+} bhnd_devclass_t;
+
+
+/**
+ * bhnd(4) port types.
+ * 
+ * Only BHND_PORT_DEVICE is guaranteed to be supported by all bhnd(4) bus
+ * implementations.
+ */
+typedef enum {
+	BHND_PORT_DEVICE	= 0,	/**< device memory */
+	BHND_PORT_BRIDGE	= 1,	/**< bridge memory */
+	BHND_PORT_AGENT		= 2,	/**< interconnect agent/wrapper */
+} bhnd_port_type;
+
+
+/** Evaluates to true if @p cls is a device class that can be configured
+ *  as a host bridge device. */
+#define	BHND_DEVCLASS_SUPPORTS_HOSTB(cls)					\
+	((cls) == BHND_DEVCLASS_PCI || (cls) == BHND_DEVCLASS_PCIE ||	\
+	 (cls) == BHND_DEVCLASS_PCCARD)
+
+/**
+ * BHND bus address.
+ * 
+ * @note While the interconnect may support 64-bit addressing, not
+ * all bridges and SoC CPUs will.
+ */
+typedef uint64_t	bhnd_addr_t;
+#define	BHND_ADDR_MAX	UINT64_MAX	/**< Maximum bhnd_addr_t value */
+
+/** BHND bus size. */
+typedef uint64_t	bhnd_size_t;
+#define	BHND_SIZE_MAX	UINT64_MAX	/**< Maximum bhnd_size_t value */
+
+
+#endif /* _BHND_BHND_TYPES_H_ */