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

	* 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.

1 files changed, 231 insertions, 0 deletions

diff --git a/tools/cpu/nios2/nios2gen.c b/tools/cpu/nios2/nios2gen.c
new file mode 100644
index 0000000000..ad9631f5a8
--- /dev/null
+++ b/tools/cpu/nios2/nios2gen.c
@@ -0,0 +1,231 @@
+/*
+ *  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 "output.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 usage()
+{
+        fprintf(stderr, 
+"Please specify the name of a nios2gen PTF file that describes where to\n"
+"find the system description PTF from SOPC Builder on the command line.\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;
+
+    if (argc<2)
+    {
+        usage();
+        return -1;
+    };
+
+    cfg = ptf_parse_file(argv[1]);
+    if(cfg == NULL)
+    {
+        fprintf(stderr, "Couldn't parse '%s'.\n", argv[1]);
+        return -1;
+    };
+
+    printf("Successfully read config PTF file %s.\n", argv[1]);
+
+    /********************************************************/
+
+    {
+      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);
+    }
+
+    /********************************************************/
+    
+    {
+      struct ptf *p;
+      struct ptf sopc_ptf_item = { item, "SOPC_PTF", 0, 0, 0 };
+      struct ptf_item sopc_ptf_spec = { 1, &sopc_ptf_item };
+      ptf_match(cfg, &sopc_ptf_spec, store_ptf_ptr, &p);
+
+      if(p == NULL)
+      {
+          fprintf(stderr, "Missing 'SOPC_PTF' filename in %s!\n", argv[1]);
+          return -1;
+      };
+
+      sopc = ptf_parse_file(p->value);
+      if(sopc == NULL)
+      {
+          fprintf(stderr, "Could not parse SOPC_PTF '%s'.\n", p->value);
+          return -1;
+      };
+
+      printf("Successfully read SOPC PTF file %s.\n", p->value);
+    };
+
+    /********************************************************/
+    /* Find CPU */
+
+    printf("Looking for usable CPUs...\n");
+
+    {
+      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);
+    };
+
+    {
+      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)
+      {
+        printf("There is more than one CPU. Please specify the one\n");
+        printf("you want to use with this BSP in your config file.\n");
+        printf("The available CPUs are named as follows:\n");
+        ptf_match(sopc, &class_spec, printf_ptf_value, "  %s\n");
+        return -1;  
+      };
+
+      if(cpu_count == 0)
+      {
+        printf("There is no NIOS2 cpu in the system.\n");
+        return -1;  
+      }
+    };
+
+    printf("Using NIOS II CPU '%s'.\n", cpu->value);
+    printf("Only modules mastered by this CPU are considered now.\n");
+
+    /********************************************************/
+    /* Find clocks */
+
+    printf("Looking for clock definitions...\n");
+
+    clocks = find_clocks(sopc, cfg);
+
+    if(clocks)
+    {
+      clock_desc *cs;
+      for(cs = clocks; cs; cs = cs->next)
+      {
+        printf("Found clock: %s (%lu Hz)\n", cs->name, cs->freq);
+      };
+    }
+    else
+    {
+      printf("No clocks present.\n");
+    };
+
+    /********************************************************/
+    /* Find Bridges */
+
+    printf("Looking for bus bridges...\n");
+
+    bridges = find_bridges(sopc);
+
+    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 other devices available to the selected CPU */
+
+    devices = find_devices(sopc, cfg, cpu, bridges);
+
+    fwrite_header_file(stdout, cfg, devices, clocks);
+
+    // ptf_printf(stdout, ptf, "");
+    // ptf_printf(stdout, cfg, "");
+
+    return 0;
+}
+
+/* vi:ts=4:
+ */
+
+