Thank you for your explanation. I have figured out, that the new address configuration for the device-tree is responsible for the behavior of the PASEMI network chip. The kernel developers changed the source code for the address configuration in kernel 3.18 because it was a historical hack that treated missing ranges properties as the equivalent of an empty one. The Ubuntu developers changed the source code too. But our A1-X1000 needs this hack. I have reverted the changes today and now, the PASEMI network chip works without this strange behavior.mechanic wrote:The PASEMI uses its pasemi phy. The reason for the message is that it could not find a vitesse phy.
AFAIK all the X1000s came with only the PASEMI and a REALTEK phy. If you want to include some of the others just build them as modules and they won't be used if the equipment is not there, and the bootup won't waste time looking for them.
Code: Select all
diff -rupN linux-3.13/drivers/of/address.c linux-3.13-nemo/drivers/of/address.c
--- linux-3.13/drivers/of/address.c 2015-02-10 16:25:35.000000000 +0100
+++ linux-3.13-nemo/drivers/of/address.c 2015-02-12 19:36:57.935832413 +0100
@@ -401,21 +401,6 @@ 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)
@@ -441,10 +426,12 @@ 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_err("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);
