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https://github.com/AsahiLinux/u-boot
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ba94a1bba3
- Add IXP4xx NPE ethernet MAC support - Add support for Intel IXDPG425 board - Add support for Prodrive PDNB3 board - Add IRQ support Patch by Stefan Roese, 23 May 2006 [This patch does not include cpu/ixp/npe/IxNpeMicrocode.c which still sufferes from licensing issues. Blame Intel.]
332 lines
11 KiB
C
332 lines
11 KiB
C
/**
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* @file IxOsalIoMem.c
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*
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* @brief OS-independent IO/Mem implementation
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*
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*
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* @par
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* IXP400 SW Release version 2.0
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*
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* -- Copyright Notice --
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*
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* @par
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* Copyright 2001-2005, Intel Corporation.
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* All rights reserved.
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*
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* @par
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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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Intel Corporation nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* @par
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @par
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* -- End of Copyright Notice --
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*/
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/* Access to the global mem map is only allowed in this file */
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#define IxOsalIoMem_C
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#include "IxOsal.h"
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#define SEARCH_PHYSICAL_ADDRESS (1)
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#define SEARCH_VIRTUAL_ADDRESS (2)
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/*
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* Searches for map using one of the following criteria:
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*
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* - enough room to include a zone starting with the physical "requestedAddress" of size "size" (for mapping)
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* - includes the virtual "requestedAddress" in its virtual address space (already mapped, for unmapping)
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* - correct coherency
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*
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* Returns a pointer to the map or NULL if a suitable map is not found.
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*/
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PRIVATE IxOsalMemoryMap *
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ixOsalMemMapFind (UINT32 requestedAddress,
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UINT32 size, UINT32 searchCriteria, UINT32 requestedEndianType)
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{
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UINT32 mapIndex;
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UINT32 numMapElements =
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sizeof (ixOsalGlobalMemoryMap) / sizeof (IxOsalMemoryMap);
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for (mapIndex = 0; mapIndex < numMapElements; mapIndex++)
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{
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IxOsalMemoryMap *map = &ixOsalGlobalMemoryMap[mapIndex];
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if (searchCriteria == SEARCH_PHYSICAL_ADDRESS
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&& requestedAddress >= map->physicalAddress
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&& (requestedAddress + size) <= (map->physicalAddress + map->size)
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&& (map->mapEndianType & requestedEndianType) != 0)
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{
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return map;
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}
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else if (searchCriteria == SEARCH_VIRTUAL_ADDRESS
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&& requestedAddress >= map->virtualAddress
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&& requestedAddress <= (map->virtualAddress + map->size)
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&& (map->mapEndianType & requestedEndianType) != 0)
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{
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return map;
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}
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else if (searchCriteria == SEARCH_PHYSICAL_ADDRESS)
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{
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ixOsalLog (IX_OSAL_LOG_LVL_DEBUG3,
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IX_OSAL_LOG_DEV_STDOUT,
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"Osal: Checking [phys addr 0x%x:size 0x%x:endianType %d]\n",
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map->physicalAddress, map->size, map->mapEndianType, 0, 0, 0);
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}
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}
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/*
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* not found
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*/
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return NULL;
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}
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/*
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* This function maps an I/O mapped physical memory zone of the given size
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* into a virtual memory zone accessible by the caller and returns a cookie -
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* the start address of the virtual memory zone.
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* IX_OSAL_MMAP_PHYS_TO_VIRT should NOT therefore be used on the returned
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* virtual address.
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* The memory zone is to be unmapped using ixOsalMemUnmap once the caller has
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* finished using this zone (e.g. on driver unload) using the cookie as
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* parameter.
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* The IX_OSAL_READ/WRITE_LONG/SHORT macros should be used to read and write
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* the mapped memory, adding the necessary offsets to the address cookie.
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*
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* Note: this function is not to be used directly. Use IX_OSAL_MEM_MAP
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* instead.
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*/
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PUBLIC void *
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ixOsalIoMemMap (UINT32 requestedAddress,
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UINT32 size, IxOsalMapEndianessType requestedEndianType)
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{
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IxOsalMemoryMap *map;
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ixOsalLog (IX_OSAL_LOG_LVL_DEBUG3,
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IX_OSAL_LOG_DEV_STDOUT,
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"OSAL: Mapping [addr 0x%x:size 0x%x:endianType %d]\n",
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requestedAddress, size, requestedEndianType, 0, 0, 0);
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if (requestedEndianType == IX_OSAL_LE)
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{
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ixOsalLog (IX_OSAL_LOG_LVL_ERROR,
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IX_OSAL_LOG_DEV_STDOUT,
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"ixOsalIoMemMap: Please specify component coherency mode to use MEM functions \n",
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0, 0, 0, 0, 0, 0);
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return (NULL);
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}
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map = ixOsalMemMapFind (requestedAddress,
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size, SEARCH_PHYSICAL_ADDRESS, requestedEndianType);
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if (map != NULL)
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{
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UINT32 offset = requestedAddress - map->physicalAddress;
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ixOsalLog (IX_OSAL_LOG_LVL_DEBUG3,
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IX_OSAL_LOG_DEV_STDOUT, "OSAL: Found map [", 0, 0, 0, 0, 0, 0);
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ixOsalLog (IX_OSAL_LOG_LVL_DEBUG3,
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IX_OSAL_LOG_DEV_STDOUT, map->name, 0, 0, 0, 0, 0, 0);
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ixOsalLog (IX_OSAL_LOG_LVL_DEBUG3,
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IX_OSAL_LOG_DEV_STDOUT,
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":addr 0x%x: virt 0x%x:size 0x%x:ref %d:endianType %d]\n",
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map->physicalAddress, map->virtualAddress,
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map->size, map->refCount, map->mapEndianType, 0);
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if (map->type == IX_OSAL_DYNAMIC_MAP && map->virtualAddress == 0)
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{
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if (map->mapFunction != NULL)
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{
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map->mapFunction (map);
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if (map->virtualAddress == 0)
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{
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/*
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* failed
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*/
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ixOsalLog (IX_OSAL_LOG_LVL_FATAL,
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IX_OSAL_LOG_DEV_STDERR,
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"OSAL: Remap failed - [addr 0x%x:size 0x%x:endianType %d]\n",
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requestedAddress, size, requestedEndianType, 0, 0, 0);
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return NULL;
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}
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}
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else
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{
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/*
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* error, no map function for a dynamic map
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*/
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ixOsalLog (IX_OSAL_LOG_LVL_FATAL,
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IX_OSAL_LOG_DEV_STDERR,
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"OSAL: No map function for a dynamic map - "
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"[addr 0x%x:size 0x%x:endianType %d]\n",
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requestedAddress, size, requestedEndianType, 0, 0, 0);
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return NULL;
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}
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}
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/*
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* increment reference count
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*/
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map->refCount++;
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return (void *) (map->virtualAddress + offset);
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}
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/*
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* requested address is not described in the global memory map
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*/
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ixOsalLog (IX_OSAL_LOG_LVL_FATAL,
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IX_OSAL_LOG_DEV_STDERR,
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"OSAL: No mapping found - [addr 0x%x:size 0x%x:endianType %d]\n",
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requestedAddress, size, requestedEndianType, 0, 0, 0);
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return NULL;
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}
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/*
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* This function unmaps a previously mapped I/O memory zone using
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* the cookie obtained in the mapping operation. The memory zone in question
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* becomes unavailable to the caller once unmapped and the cookie should be
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* discarded.
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*
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* This function cannot fail if the given parameter is correct and does not
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* return a value.
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*
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* Note: this function is not to be used directly. Use IX_OSAL_MEM_UNMAP
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* instead.
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*/
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PUBLIC void
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ixOsalIoMemUnmap (UINT32 requestedAddress, UINT32 endianType)
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{
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IxOsalMemoryMap *map;
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if (endianType == IX_OSAL_LE)
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{
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ixOsalLog (IX_OSAL_LOG_LVL_ERROR,
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IX_OSAL_LOG_DEV_STDOUT,
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"ixOsalIoMemUnmap: Please specify component coherency mode to use MEM functions \n",
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0, 0, 0, 0, 0, 0);
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return;
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}
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if (requestedAddress == 0)
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{
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/*
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* invalid virtual address
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*/
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return;
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}
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map =
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ixOsalMemMapFind (requestedAddress, 0, SEARCH_VIRTUAL_ADDRESS,
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endianType);
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if (map != NULL)
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{
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if (map->refCount > 0)
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{
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/*
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* decrement reference count
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*/
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map->refCount--;
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if (map->refCount == 0)
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{
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/*
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* no longer used, deallocate
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*/
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if (map->type == IX_OSAL_DYNAMIC_MAP
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&& map->unmapFunction != NULL)
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{
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map->unmapFunction (map);
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}
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}
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}
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}
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else
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{
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ixOsalLog (IX_OSAL_LOG_LVL_WARNING,
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IX_OSAL_LOG_DEV_STDERR,
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"OSAL: ixOsServMemUnmap didn't find the requested map "
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"[virt addr 0x%x: endianType %d], ignoring call\n",
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requestedAddress, endianType, 0, 0, 0, 0);
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}
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}
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/*
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* This function Converts a virtual address into a physical
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* address, including the dynamically mapped memory.
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*
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* Parameters virtAddr - virtual address to convert
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* Return value: corresponding physical address, or NULL
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* if there is no physical address addressable
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* by the given virtual address
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* OS: VxWorks, Linux, WinCE, QNX, eCos
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* Reentrant: Yes
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* IRQ safe: Yes
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*/
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PUBLIC UINT32
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ixOsalIoMemVirtToPhys (UINT32 virtualAddress, UINT32 requestedCoherency)
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{
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IxOsalMemoryMap *map =
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ixOsalMemMapFind (virtualAddress, 0, SEARCH_VIRTUAL_ADDRESS,
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requestedCoherency);
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if (map != NULL)
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{
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return map->physicalAddress + virtualAddress - map->virtualAddress;
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}
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else
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{
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return (UINT32) IX_OSAL_MMU_VIRT_TO_PHYS (virtualAddress);
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}
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}
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/*
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* This function Converts a virtual address into a physical
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* address, including the dynamically mapped memory.
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*
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* Parameters virtAddr - virtual address to convert
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* Return value: corresponding physical address, or NULL
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* if there is no physical address addressable
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* by the given virtual address
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* OS: VxWorks, Linux, WinCE, QNX, eCos
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* Reentrant: Yes
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* IRQ safe: Yes
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*/
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PUBLIC UINT32
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ixOsalIoMemPhysToVirt (UINT32 physicalAddress, UINT32 requestedCoherency)
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{
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IxOsalMemoryMap *map =
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ixOsalMemMapFind (physicalAddress, 0, SEARCH_PHYSICAL_ADDRESS,
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requestedCoherency);
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if (map != NULL)
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{
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return map->virtualAddress + physicalAddress - map->physicalAddress;
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}
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else
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{
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return (UINT32) IX_OSAL_MMU_PHYS_TO_VIRT (physicalAddress);
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}
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}
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