On Wed, Feb 23, 2005 at 12:02:04AM -0800, Shawn Jin wrote:

quoted

quoted

zmii0: input 0 in SMII mode
eth0: IBM emac, MAC 00:04:ac:e3:1b:bb
eth0: Found Generic MII PHY (0x08)
zmii0: input 1 in RMII mode
eth1: IBM emac, MAC FF:FF:FF:FF:FF:FF
eth1: Found Generic MII PHY (0x09)

I already told you that this is wrong, why are you asking again?
Please, if you asking questions, spend some time reading answers
given to you, before asking again.

Well, don't be mad at me first. The question may bring out another
round of arguments whether it's a bug related to uboot or linux EMAC
driver. Wolfgang makes it very clear that this is a bug in linux
ethernet driver. And I agree with him. This argument happened before
and I just forgot what specific ethernet driver was in the argument.

This is really irrelevant.

quoted

Ebony uses RMII, so SMII is obviously wrong. Most probably your
firmware doesn't set correct mode and autodetection in the EMAC driver
fails.

So the EMAC driver does expect a boot loader (the firmware you
mentioned here) to set something for it. Then I think I need to fix it
in this driver instead of in uboot.

Current EMAC driver uses autodetection logic if PHY mode wasn't 
specified by the board support code. It works for Ebony + OpenBIOS. 
You can try the following patch (untested) to set PHY mode explicitly:

===== arch/ppc/platforms/4xx/ebony.c 1.10 vs edited =====

--- 1.10/arch/ppc/platforms/4xx/ebony.c	2005-02-03 06:42:41 -08:00
+++ edited/arch/ppc/platforms/4xx/ebony.c	2005-02-23 01:28:04 -08:00

@@ -52,6 +52,13 @@
 
 #include <syslib/gen550.h>
 
+/*
+ * This is a horrible kludge, we eventually need to abstract this
+ * generic PHY stuff, so the  standard phy mode defines can be
+ * easily used from arch code.
+ */
+#include "../../../../drivers/net/ibm_emac/ibm_emac_phy.h"
+
 static struct ibm44x_clocks clocks __initdata;
 
 /*

@@ -267,9 +274,11 @@
 	def = ocp_get_one_device(OCP_VENDOR_IBM, OCP_FUNC_EMAC, 0);
 	emacdata = def->additions;
 	memcpy(emacdata->mac_addr, EBONY_NA0_ADDR(vpd_base), 6);
+	emacdata->phy_mode = PHY_MODE_RMII;
 	def = ocp_get_one_device(OCP_VENDOR_IBM, OCP_FUNC_EMAC, 1);
 	emacdata = def->additions;
 	memcpy(emacdata->mac_addr, EBONY_NA1_ADDR(vpd_base), 6);
+	emacdata->phy_mode = PHY_MODE_RMII;
 	iounmap(vpd_base);
 
 	/*


--

Eugene