when #size-cells is zero, don't expect a size.

1 files changed, 10 insertions, 5 deletions

diff --git a/sim/ppc/tree.c b/sim/ppc/tree.c
index 3600593..c5106f4 100644
--- a/sim/ppc/tree.c
+++ b/sim/ppc/tree.c
@@ -463,6 +463,7 @@ parse_address(device *current,
 	      const char *chp,
 	      device_unit *address)
 {
+  ASSERT(device_nr_address_cells(bus) > 0);
   if (device_decode_unit(bus, chp, address) < 0)
     device_error(current, "invalid unit address in %s", chp);
   return skip_token(chp);
@@ -485,6 +486,7 @@ parse_size(device *current,
   /* parse the numeric list */
   size->nr_cells = device_nr_size_cells(bus);
   nr = 0;
+  ASSERT(size->nr_cells > 0);
   while (1) {
     char *next;
     size->cells[nr] = strtoul(curr, &next, 0);
@@ -521,9 +523,11 @@ parse_reg_property(device *current,
   int reg_nr;
   reg_property_spec *regs;
   const char *chp;
+  device *bus = device_parent(current);
 
   /* determine the number of reg entries by counting tokens */
-  nr_regs = count_entries(current, property_name, property_value, 2);
+  nr_regs = count_entries(current, property_name, property_value,
+			  1 + (device_nr_size_cells(bus) > 0));
 
   /* create working space */
   regs = zalloc(nr_regs * sizeof(*regs));
@@ -531,10 +535,11 @@ parse_reg_property(device *current,
   /* fill it in */
   chp = property_value;
   for (reg_nr = 0; reg_nr < nr_regs; reg_nr++) {
-    chp = parse_address(current, device_parent(current),
-			chp, &regs[reg_nr].address);
-    chp = parse_size(current, device_parent(current),
-		     chp, &regs[reg_nr].size);
+    chp = parse_address(current, bus, chp, &regs[reg_nr].address);
+    if (device_nr_size_cells(bus) > 0)
+      chp = parse_size(current, bus, chp, &regs[reg_nr].size);
+    else
+      memset(&regs[reg_nr].size, sizeof (&regs[reg_nr].size), 0);
   }
 
   /* create it */