982e7e3df8
This defines a new bhnd_erom_if API, providing a common interface to device enumeration on siba(4) and bcma(4) devices, for use both in the bhndb bridge and SoC early boot contexts, and migrates mips/broadcom over to the new API. This also replaces the previous adhoc device enumeration support implemented for mips/broadcom. Migration of bhndb to the new API will be implemented in a follow-up commit. - Defined new bhnd_erom_if interface for bhnd(4) device enumeration, along with bcma(4) and siba(4)-specific implementations. - Fixed a minor bug in bhndb that logged an error when we attempted to map the full siba(4) bus space (18000000-17FFFFFF) in the siba EROM parser. - Reverted use of the resource's start address as the ChipCommon enum_addr in bhnd_read_chipid(). When called from bhndb, this address is found within the host address space, resulting in an invalid bridged enum_addr. - Added support for falling back on standard bus_activate_resource() in bhnd_bus_generic_activate_resource(), enabling allocation of the bhnd_erom's bhnd_resource directly from a nexus-attached bhnd(4) device. - Removed BHND_BUS_GET_CORE_TABLE(); it has been replaced by the erom API. - Added support for statically initializing bhnd_erom instances, for use prior to malloc availability. The statically allocated buffer size is verified both at runtime, and via a compile-time assertion (see BHND_EROM_STATIC_BYTES). - bhnd_erom classes are registered within a module via a linker set, allowing mips/broadcom to probe available EROM parser instances without creating a strong reference to bcma/siba-specific symbols. - Migrated mips/broadcom to bhnd_erom_if, replacing the previous MIPS-specific device enumeration implementation. Approved by: adrian (mentor) Differential Revision: https://reviews.freebsd.org/D7748
94 lines
3.4 KiB
C
94 lines
3.4 KiB
C
/*-
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* Copyright (c) 2015 Landon Fuller <landon@landonf.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
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* redistribution must be conditioned upon including a substantially
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* similar Disclaimer requirement for further binary redistribution.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGES.
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*
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* $FreeBSD$
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*/
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#ifndef _BCMA_BCMA_EROMVAR_H_
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#define _BCMA_BCMA_EROMVAR_H_
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#include <dev/bhnd/bhnd.h>
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#include <dev/bhnd/bhnd_erom.h>
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#include "bcmavar.h"
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struct bcma_erom;
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int bcma_erom_next_corecfg(struct bcma_erom *sc,
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struct bcma_corecfg **result);
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/**
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* BCMA EROM per-instance state.
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*/
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struct bcma_erom {
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struct bhnd_erom obj;
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device_t dev; /**< EROM parent device, or NULL
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if none. */
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struct bhnd_resource *res; /**< EROM table resource, or
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NULL if initialized with
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bus space tag and handle */
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int rid; /**< EROM table rid, or -1 */
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bus_space_tag_t bst; /**< EROM table bus space */
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bus_space_handle_t bsh; /**< EROM table bus handle */
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bus_size_t start; /**< EROM table offset */
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bus_size_t offset; /**< current read offset */
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};
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/** EROM core descriptor. */
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struct bcma_erom_core {
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uint16_t vendor; /**< core's designer */
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uint16_t device; /**< core's device identifier */
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uint16_t rev; /**< core's hardware revision */
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u_long num_mport; /**< number of master port descriptors */
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u_long num_dport; /**< number of slave port descriptors */
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u_long num_mwrap; /**< number of master wrapper slave port descriptors */
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u_long num_swrap; /**< number of slave wrapper slave port descriptors */
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};
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/** EROM master port descriptor. */
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struct bcma_erom_mport {
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uint8_t port_num; /**< the port number (bus-unique) */
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uint8_t port_vid; /**< the port VID. A single physical
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master port may have multiple VIDs;
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the canonical port address is
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composed of the port number + the
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port VID */
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};
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/** EROM slave port region descriptor. */
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struct bcma_erom_sport_region {
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uint8_t region_port; /**< the slave port mapping this region */
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uint8_t region_type; /**< the mapping port's type */
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bhnd_addr_t base_addr; /**< region base address */
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bhnd_addr_t size; /**< region size */
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};
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#endif /* _BCMA_BCMA_EROMVAR_H_ */
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