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2006-08-09 Kolja Waschk <waschk@telos.de>

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* configure.ac: New port to Altera NIOS II.
	* nios2/.cvsignore, nios2/Makefile.am, nios2/README, nios2/bridges.c,
	nios2/bridges.h, nios2/clocks.c, nios2/clocks.h, nios2/configure.ac,
	nios2/devices.c, nios2/devices.h, nios2/nios2gen.c, nios2/output.c,
	nios2/output.h, nios2/ptf.c, nios2/ptf.h: New files.
This commit is contained in:
Joel Sherrill
2006-08-09 21:05:32 +00:00
parent 28b8d3afaa
commit 037e16396d
17 changed files with 1837 additions and 0 deletions
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132
tools/cpu/nios2/devices.c Normal file
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/*
* Copyright (c) 2006 Kolja Waschk rtemsdev/ixo.de
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "ptf.h"
#include "bridges.h"
#include "devices.h"
void add_device(device_desc **dl, struct ptf *dev)
{
device_desc *eds;
for(eds = *dl; eds; eds = eds->next)
{
if(eds->ptf == dev)
{
eds->slaves++;
return;
};
};
eds = (device_desc *)malloc(sizeof(device_desc));
eds->slaves = 1;
eds->ptf = dev;
eds->next = *dl;
*dl = eds;
}
void check_and_add_device(struct ptf_item *pi, void *arg)
{
struct ptf *module = pi->item[pi->level-3];
struct ptf *sysinfo = pi->item[pi->level-2];
char *master_name = pi->item[pi->level]->value;
struct { char *dm; char *im; device_desc **dl; bus_bridge_pair *bridges; } *dinfo = arg;
if(is_bridged(dinfo->dm, master_name, dinfo->bridges) ||
is_bridged(dinfo->im, master_name, dinfo->bridges))
{
struct ptf *ni = ptf_alloc_item(item, "N2G_Selected", "1");
if(ni != NULL)
{
ni->next = sysinfo->sub;
sysinfo->sub = ni;
};
add_device(dinfo->dl, module);
};
}
void set_dev_cfgname(struct ptf_item *pi, void *arg)
{
device_desc *dev = arg;
dev->cfgname = pi->item[pi->level]->name;
}
device_desc *find_devices(
struct ptf *ptf,
struct ptf *cfg,
struct ptf *cpu,
bus_bridge_pair *bridges)
{
struct ptf system = { section, "SYSTEM", 0, 0, 0 };
struct ptf module = { section, "MODULE", 0, 0, 0 };
struct ptf slave = { section, "SLAVE", 0, 0, 0 };
struct ptf syb = { section, "SYSTEM_BUILDER_INFO", 0, 0, 0 };
struct ptf maby = { section, "MASTERED_BY", 0, 0, 0 };
struct ptf_item brdg = { 5, &system, &module, &slave, &syb, &maby };
struct ptf modules = { section, "MODULES", 0, 0, 0 };
struct ptf named = { item, 0, 0, 0, 0};
struct ptf_item devcf = { 2, &modules, &named };
struct { char *dm; char *im; device_desc **dl; bus_bridge_pair *bridges; } dinfo;
device_desc *found, *reverse;
found = NULL;
add_device(&found, cpu); /* The CPU is "self-connected", add it */
dinfo.dl = &found;
dinfo.bridges = bridges;
dinfo.dm = (char *)malloc(strlen(cpu->value)+13);
dinfo.im = (char *)malloc(strlen(cpu->value)+20);
strcpy(dinfo.im, cpu->value);
strcat(dinfo.im, "/");
strcpy(dinfo.dm, dinfo.im);
strcat(dinfo.dm, "data_master");
strcat(dinfo.im, "instruction_master");
/* "Available" is any MODULE with a SLAVE section that is MASTERED_BY
either instr_master or data_master of selected CPU, either directly
or through a bridge. See code above for more info about bridges.
*/
ptf_match(ptf, &brdg, check_and_add_device, &dinfo);
free(dinfo.dm);
free(dinfo.im);
/* Reverse the linked list */
reverse = NULL;
while(found)
{
device_desc *tmp = found;
found = found->next;
tmp->next = reverse;
reverse = tmp;
named.value = tmp->ptf->value;
tmp->cfgname = NULL;
ptf_match(cfg, &devcf, set_dev_cfgname, tmp);
if(tmp->cfgname == NULL) tmp->cfgname = ptf_defused_name(tmp->ptf->value);
};
return reverse;
}