Hi All,

I have a patch for it (Kernel 4.0-rc2):

diff -rupN linux-4.0/drivers/of/address.c linux-4.0-nemo/drivers/of/address.c
--- linux-4.0/drivers/of/address.c    2015-03-03 18:04:59.000000000 +0100
+++ linux-4.0-nemo/drivers/of/address.c    2015-03-03 22:34:00.037500744 +0100
@@ -450,21 +450,6 @@ static struct of_bus *of_match_bus(struc
     return NULL;
 }
 
-static int of_empty_ranges_quirk(void)
-{
-    if (IS_ENABLED(CONFIG_PPC)) {
-        /* To save cycles, we cache the result */
-        static int quirk_state = -1;
-
-        if (quirk_state < 0)
-            quirk_state =
-                of_machine_is_compatible("Power Macintosh") ||
-                of_machine_is_compatible("MacRISC");
-        return quirk_state;
-    }
-    return false;
-}
-
 static int of_translate_one(struct device_node *parent, struct of_bus *bus,
                 struct of_bus *pbus, __be32 *addr,
                 int na, int ns, int pna, const char *rprop)
@@ -490,10 +475,12 @@ static int of_translate_one(struct devic
      * This code is only enabled on powerpc. --gcl
      */
     ranges = of_get_property(parent, rprop, &rlen);
-    if (ranges == NULL && !of_empty_ranges_quirk()) {
+#if !defined(CONFIG_PPC)
+       if (ranges == NULL) {
         pr_debug("OF: no ranges; cannot translate\n");
         return 1;
     }
+#endif /* !defined(CONFIG_PPC) */
     if (ranges == NULL || rlen == 0) {
         offset = of_read_number(addr, na);
         memset(addr, 0, pna * 4);

Rgds,

Christian

On 07/03/2015 01:16 a.m., Alex Perez wrote: