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-rw-r--r--tools/cpu/nios2/nios2gen.c496
1 files changed, 496 insertions, 0 deletions
diff --git a/tools/cpu/nios2/nios2gen.c b/tools/cpu/nios2/nios2gen.c
new file mode 100644
index 0000000000..9c36a48a99
--- /dev/null
+++ b/tools/cpu/nios2/nios2gen.c
@@ -0,0 +1,496 @@
+/*
+ * 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 "clocks.h"
+#include "devices.h"
+#include "memory.h"
+#include "output.h"
+#include "linkcmds.h"
+
+#define NIOS2GEN_PACKAGE PACKAGE
+#define NIOS2GEN_VERSION VERSION
+
+#include "getopt.h"
+
+/********************************************************/
+
+void store_ptf_parent(struct ptf_item *pi, void *arg)
+{
+ struct ptf *p = pi->item[pi->level-1];
+ *(struct ptf **)arg = p;
+}
+
+/********************************************************/
+
+void store_ptf_ptr(struct ptf_item *pi, void *arg)
+{
+ struct ptf *p = pi->item[pi->level];
+ *(struct ptf **)arg = p;
+}
+
+/********************************************************/
+
+void printf_ptf_value(struct ptf_item *pi, void *arg)
+{
+ struct ptf *p = pi->item[pi->level];
+ printf(*(char **)arg, p->value);
+}
+
+/********************************************************/
+
+void read_include_file(struct ptf_item *pi, void *arg)
+{
+ struct ptf *inc, *next;
+ struct ptf *p = pi->item[pi->level];
+
+ inc = ptf_parse_file(p->value);
+
+ if(inc == NULL)
+ {
+ fprintf(stderr, "Warning: couldn't parse included '%s'.\n", p->value);
+ return;
+ };
+
+ printf("Successfully read included PTF file %s.\n", p->value);
+
+ next = p->next;
+ for(p->next = inc; p->next != NULL; p = p->next);
+ p->next = next;
+}
+
+/********************************************************/
+
+void version(FILE *f)
+{
+fprintf(f,
+ "nios2gen (" __DATE__ ")\n"
+ " Copyright (c) 2006 Kolja Waschk rtemsdev/ixo.de\n"
+ "\n"
+ " The license and distribution terms for this file may be\n"
+ " found in the file LICENSE in this distribution or at\n"
+ " http://www.rtems.com/license/LICENSE.\n"
+ , VERSION
+);
+}
+
+void usage (FILE *f, char *errmsg)
+{
+ char *info = "Purpose:\n Create RTEMS nios2 BSP configuration from Altera SOPC description\n";
+ if(errmsg) info=errmsg;
+ version(f);
+ fprintf(f,"\n%s\nUsage: nios2gen [OPTIONS] <SOPC PTF> [CONFIG PTF] [CONFIG PTF]...\n", info);
+ fprintf(f," -h --help Print help and exit\n");
+ fprintf(f," -V --version Print version and exit\n");
+ fprintf(f," -bFILENAME --bspheader=FILENAME Output BSP configuration header file (default='sopc.h')\n");
+ fprintf(f," -B --no-bspheader Do not output BSP configuration header file\n");
+ fprintf(f," -lFILENAME --linkcmds=FILENAME Output linker script (default='linkcmds')\n");
+ fprintf(f," -L --no-linkcmds Do not output linker script\n");
+ fprintf(f," -pFILENAME --parsed=FILENAME Output PTF contents as long list (default: don't)\n");
+ fprintf(f," -P --no-parsed Do not output PTF contents as long list\n");
+ fprintf(f," -q --quiet Do not print progress info to stdout\n\n");
+ fprintf(f,"Using \"-\" as the FILENAME means standard output (stdout).\n");
+}
+
+/********************************************************/
+
+int main(int argc, char *argv[])
+{
+ struct ptf *sopc, *cfg, *p, *cpu;
+ struct ptf_item pi;
+ device_desc *devices;
+ bus_bridge_pair *bridges;
+ clock_desc *clocks;
+ memory_desc *memory;
+
+ int verbose = 1;
+ int output_order = 127;
+ char *parsed_filename = NULL;
+ int output_parsed = 0;
+ char *bspheader_filename = "sopc.h";
+ int output_bspheader = 1;
+ char *linkcmds_filename = "linkcmds";
+ int output_linkcmds = 2;
+
+ optarg = 0;
+ optind = 1;
+ opterr = 1;
+ optopt = '?';
+
+ if(argc > 126)
+ {
+ usage(stderr,"Too many commandline arguments!\n");
+ return -1;
+ };
+
+ while(1)
+ {
+ int c, long_index = 0;
+ static char *optstring = "hVBb:Ll:Pp:q";
+
+ static struct option long_options[] =
+ {
+ { "help", 0, NULL, 'h' },
+ { "version", 0, NULL, 'V' },
+ { "no-bspheader", 0, NULL, 'B' },
+ { "bspheader", 1, NULL, 'b' },
+ { "no-linkcmds", 0, NULL, 'L' },
+ { "linkcmds", 1, NULL, 'l' },
+ { "no-parsed", 0, NULL, 'P' },
+ { "parsed", 1, NULL, 'p' },
+ { "quiet", 0, NULL, 'q' },
+ { NULL, 0, NULL, 0 }
+ };
+
+ c = getopt_long (argc, argv, optstring, long_options, &long_index);
+
+ if(c == -1) break; /* Exit from while(1) loop */
+
+ switch(c)
+ {
+ case 'q': /* Be quiet */
+ verbose = 0;
+ break;
+
+ case 'h': /* Print help and exit */
+ usage(stdout,NULL);
+ return 0;
+
+ case 'V': /* Print version and exit */
+ version(stdout);
+ return 0;
+
+ case 'B': /* Do not output BSP configuration header file */
+ output_bspheader = 0;
+ break;
+
+ case 'b': /* Output BSP configuration header file */
+ bspheader_filename = optarg;
+ output_bspheader = output_order;
+ output_order--;
+ break;
+
+ case 'L': /* Do not output linker script */
+ output_linkcmds = 0;
+ break;
+
+ case 'l': /* Output linker script */
+ linkcmds_filename = optarg;
+ output_linkcmds = output_order;
+ output_order--;
+ break;
+
+ case 'P': /* Do not output PTF contents */
+ output_parsed = 0;
+ break;
+
+ case 'p': /* Output PTF contents as long list */
+ parsed_filename = optarg;
+ output_parsed = output_order;
+ output_order--;
+ break;
+
+ case 0:
+ case '?':
+ return -1;
+
+ default:
+ fprintf(stderr, "%s: unknown option: %c\n", NIOS2GEN_PACKAGE, c);
+ };
+ };
+
+ if(optind >= argc)
+ {
+ usage(stderr,"No PTF specified!\n");
+ return -1;
+ };
+
+ /********************************************************/
+
+ sopc = ptf_parse_file(argv[optind]);
+ if(sopc == NULL)
+ {
+ fprintf(stderr, "Could not parse system description PTF '%s'.\n", argv[optind]);
+ return -1;
+ };
+
+ if(verbose) printf("Successfully read SOPC PTF file %s.\n", argv[optind]);
+
+ /********************************************************/
+
+ cfg = NULL;
+
+ for(optind++;optind<argc;optind++)
+ {
+ struct ptf *morecfg = ptf_parse_file(argv[optind]);
+
+ if(morecfg == NULL)
+ {
+ fprintf(stderr, "Couldn't parse '%s'.\n", argv[optind]);
+ return -1;
+ };
+
+ if(verbose) printf("Successfully read config PTF file %s.\n", argv[optind]);
+
+ cfg = ptf_concat(cfg, morecfg);
+ };
+
+ /********************************************************/
+ /* Pull in include files specified in the configs; */
+ /* Only one level is read; included files are not */
+ /* checked for further INCLUDEs */
+
+ {
+ struct ptf include_item = { item, "INCLUDE", 0, 0, 0 };
+ struct ptf_item inc_file_spec = { 1, &include_item };
+ ptf_match(cfg, &inc_file_spec, read_include_file, NULL);
+ }
+
+ /********************************************************/
+ /* Find CPU */
+
+ if(verbose) printf("Looking for usable CPUs...\n");
+
+ /* Check if a CPU has been specified in the config PTF */
+ {
+ struct ptf modules = { section, "MODULES", 0, 0, 0 };
+ struct ptf cpu_def = { item, "CPU", 0, 0, 0 };
+ struct ptf_item cpu_spec = { 2, &modules, &cpu_def };
+
+ ptf_match(cfg, &cpu_spec, store_ptf_ptr, &cpu);
+ };
+
+ /* Look for CPUs in system description PTF */
+ {
+ int cpu_count;
+ struct ptf system = { section, "SYSTEM", 0, 0, 0 };
+ struct ptf module = { section, "MODULE", 0, 0, 0 };
+ struct ptf nios2_cpu_class = { item, "class", "altera_nios2", 0, 0 };
+ struct ptf_item class_spec = { 3, &system, &module, &nios2_cpu_class };
+
+ if(cpu) if(cpu->value) class_spec.item[1]->value = cpu->value;
+
+ cpu_count = ptf_match(sopc, &class_spec, store_ptf_parent, &cpu);
+
+ if(cpu_count > 1)
+ {
+ fprintf(stderr, "There is more than one CPU. Please specify the one\n");
+ fprintf(stderr, "you want to use with this BSP in your config file.\n");
+ fprintf(stderr, "The available CPUs are named as follows:\n");
+ ptf_match(sopc, &class_spec, printf_ptf_value, " %s\n");
+ return -1;
+ };
+
+ if(cpu_count == 0)
+ {
+ fprintf(stderr, "There is no NIOS2 cpu in the system.\n");
+ return -1;
+ }
+ };
+
+ if(verbose)
+ {
+ printf("Using NIOS II CPU '%s'.\n", cpu->value);
+ printf("Only modules mastered by this CPU are considered now.\n");
+ };
+
+ /********************************************************/
+ /* Find Bridges */
+
+ if(verbose) printf("Looking for bus bridges...\n");
+
+ bridges = find_bridges(sopc);
+
+ if(verbose)
+ {
+ if(bridges)
+ {
+ bus_bridge_pair *bbp;
+ for(bbp = bridges; bbp; bbp=bbp->next)
+ {
+ printf("Found bridge: %s\n", bbp->mastered_by);
+ printf(" \\_%s\n", bbp->bridges_to);
+ };
+ }
+ else
+ {
+ printf("No bridges present.\n");
+ };
+ };
+
+ /********************************************************/
+ /* Find clocks */
+
+ if(verbose) printf("Looking for clock definitions...\n");
+
+ clocks = find_clocks(sopc, cfg);
+
+ if(verbose)
+ {
+ if(clocks)
+ {
+ clock_desc *cs;
+ for(cs = clocks; cs; cs = cs->next)
+ {
+ printf("Found clock \"%s\" (%lu Hz), naming it %s\n", cs->name, cs->freq, cs->cfgname);
+ };
+ }
+ else
+ {
+ printf("No clocks present.\n");
+ };
+ };
+
+ /********************************************************/
+ /* Find other devices available to the selected CPU */
+
+ if(verbose) printf("Looking for devices...\n");
+
+ devices = find_devices(sopc, cfg, cpu, bridges);
+
+ if(verbose)
+ {
+ if(devices)
+ {
+ device_desc *dd;
+ for(dd = devices; dd; dd=dd->next)
+ {
+ printf("Found device \"%s\", naming it %s\n", dd->ptf->value, dd->cfgname);
+ };
+ }
+ else
+ {
+ printf("No devices present.\n");
+ };
+ };
+
+ /********************************************************/
+ /* Find out which devices are actually memory */
+
+ if(verbose) printf("Looking for memory...\n");
+
+ memory = find_memory(devices);
+
+ if(verbose)
+ {
+ if(memory)
+ {
+ memory_desc *md;
+ for(md = memory; md; md=md->next)
+ {
+ printf("Found memory in \"%s\", base=0x%08X, size=%lu bytes\n",
+ md->dev->cfgname,
+ md->base, md->size);
+ };
+ }
+ else
+ {
+ printf("None of the devices seems to provide memory?!\n");
+ };
+ };
+
+
+ /********************************************************/
+ /* Output files in the order they were specified
+ on the command line */
+
+ {
+ int i;
+ for(i=0;i<3;i++)
+ {
+ if(output_bspheader>0
+ && output_bspheader>=output_linkcmds
+ && output_bspheader>=output_parsed)
+ {
+ output_bspheader = 0;
+ if(bspheader_filename == NULL || (bspheader_filename[0]=='-' && bspheader_filename[1]==0))
+ {
+ fwrite_header_file(stdout, cfg, devices, clocks);
+ }
+ else
+ {
+ FILE *f = fopen(bspheader_filename, "w");
+ if(!f)
+ {
+ perror(bspheader_filename);
+ return -1;
+ }
+ else
+ {
+ fwrite_header_file(f, cfg, devices, clocks);
+ fclose(f);
+ }
+ }
+ };
+ if(output_linkcmds>0
+ && output_linkcmds>=output_bspheader
+ && output_linkcmds>=output_parsed)
+ {
+ output_linkcmds = 0;
+ if(linkcmds_filename == NULL || (linkcmds_filename[0]=='-' && linkcmds_filename[1]==0))
+ {
+ fwrite_linkcmds_file(stdout, cfg, cpu, devices, memory);
+ }
+ else
+ {
+ FILE *f = fopen(linkcmds_filename, "w");
+ if(!f)
+ {
+ perror(linkcmds_filename);
+ return -1;
+ }
+ else
+ {
+ fwrite_linkcmds_file(f, cfg, cpu, devices, memory);
+ fclose(f);
+ }
+ }
+ };
+ if(output_parsed>0
+ && output_parsed>=output_linkcmds
+ && output_parsed>=output_bspheader)
+ {
+ output_parsed = 0;
+ if(parsed_filename == NULL || (parsed_filename[0]=='-' && parsed_filename[1]==0))
+ {
+ ptf_printf(stdout, sopc, "");
+ }
+ else
+ {
+ FILE *f = fopen(parsed_filename, "w");
+ if(!f)
+ {
+ perror(parsed_filename);
+ return -1;
+ }
+ else
+ {
+ ptf_printf(f, sopc, "");
+ fclose(f);
+ }
+ }
+ };
+ }
+ };
+
+ if(verbose) printf("Done.\n");
+
+ return 0;
+}
+
+/* vi:ts=4:
+ */
+
+
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