forked from Imagelibrary/rtems
16fd5a99e1
* linkcmds.c, linkcmds.h, memory.c, memory.h, sample.ptf: New files. * bridges.c: corrected detection of bridged connections * clocks.c: removed a printf * linkcmds.[ch] new files, added output of linker script * Makefile.am: added new files * memory.[ch]: new files, detection of memory in SOPC configuration * nios2gen.c: updated command line parsing and output control * output.[ch]: improved output of BSP header file * ptf.[ch]: added ptf_dump_ptf_item and small fixes * sample.ptf: new file, sample configuration for nios2gen * README: updated
105 lines
2.3 KiB
C
105 lines
2.3 KiB
C
/*
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* Copyright (c) 2006 Kolja Waschk rtemsdev/ixo.de
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*
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* $Id$
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "ptf.h"
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#include "devices.h"
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#include "memory.h"
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memory_desc *find_memory(device_desc *devices)
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{
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struct ptf *p;
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struct ptf_item pi;
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memory_desc *tmd, *memory;
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/********************************************************/
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/* Check which of the devices are memory, sort by size */
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if(devices)
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{
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struct ptf *p, *s;
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struct ptf_item pi;
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device_desc *dd;
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memory = NULL;
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for(dd = devices; dd; dd=dd->next)
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{
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p = ptf_find(dd->ptf->sub, &pi, item, "Is_Memory_Device", "1");
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if(p != NULL && pi.level>0)
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{
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s = pi.item[pi.level-1];
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p = ptf_find(s, &pi, item, "Base_Address", 0);
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};
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if(p != NULL)
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{
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tmd = (memory_desc*)malloc(sizeof(memory_desc));
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if(tmd != NULL)
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{
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tmd->base = strtoul(p->value, 0, 0);
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p = ptf_find(s, &pi, item, "Address_Span", 0);
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if(p != 0)
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{
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tmd->size = strtoul(p->value, 0, 0);
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}
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else
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{
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tmd->size = 0;
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p = ptf_find(s, &pi, item, "Address_Width", 0);
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if(p) tmd->size = 1 << strtoul(p->value, 0, 0);
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p = ptf_find(s, &pi, item, "Data_Width", 0);
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if(p) tmd->size *= (strtoul(p->value, 0, 0) >> 3);
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};
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if(tmd->size == 0)
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{
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free(tmd);
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}
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else
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{
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tmd->dev = dd;
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if(memory == NULL)
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{
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tmd->next = NULL;
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memory = tmd;
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}
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else
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{
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if(tmd->size > memory->size)
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{
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tmd->next = memory;
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memory = tmd;
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}
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else
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{
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memory_desc *uplink = memory;
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while(uplink->next != NULL && uplink->next->size > tmd->size) uplink=uplink->next;
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tmd->next = uplink->next;
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uplink->next = tmd;
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};
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};
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};
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};
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};
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};
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};
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return memory;
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}
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