Changeset 272c219 in mainline for arch/ppc32/loader/ofw.c

Timestamp:

2006-03-13T18:42:58Z (19 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

eebd172

Parents:

8cbe350

Message:

cleanup and extend OFW code

File:

• arch/ppc32/loader/ofw.c (modified) (5 diffs)

arch/ppc32/loader/ofw.c

@@ -28 +28 @@
  
 #include "ofw.h"
+#include "printf.h"
 
 ofw_entry ofw;
 
 phandle ofw_chosen;
+ihandle ofw_mmu;
 ihandle ofw_stdout;
 
@@ -39 +41 @@
         ofw_chosen = ofw_find_device("/chosen");
         if (ofw_chosen == -1)
-                ofw_call("exit", 0, 0);
+                halt();
         
         if (ofw_get_property(ofw_chosen, "stdout",  &ofw_stdout, sizeof(ofw_stdout)) <= 0)      
                 ofw_stdout = 0;
+        
+        ofw_mmu = ofw_open("/mmu");
+        if (ofw_mmu == -1) {
+                puts("Unable to open /mmu node\n");
+                halt();
+        }
+}
+
+void halt(void)
+{
+        ofw_call("exit", 0, 0);
 }
 
@@ -66 +79 @@
         ofw(&args);
         
-        return args.args[nargs];
+        if (nret > 0)
+                return args.args[nargs + nret - 1];
+        else
+                return 0;
+}
+
+
+ihandle ofw_open(const char *name)
+{
+        return ofw_call("open", 1, 1, name);
 }
 
@@ -76 +98 @@
         
         ofw_call("write", 3, 1, ofw_stdout, str, len);
-}
-
-
-void ofw_puts(const char *str)
-{
-        int len = 0;
-        
-        while (str[len] != 0)
-                len++;
-        
-        ofw_write(str, len);
 }
 
@@ -106 +117 @@
         return (void *) ofw_call("claim", 3, 1, addr, size, align);
 }
+
+
+void *ofw_translate(const void *virt)
+{
+        return (void *) ofw_call_method(ofw_mmu, "translate", 1, 5, virt);
+}