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Re: tx49 Ether problems

To: Atsushi Nemoto <anemo@mba.ocn.ne.jp>, ralf@linux-mips.org
Subject: Re: tx49 Ether problems
From: Geoff Levand <geoffrey.levand@am.sony.com>
Date: Fri, 14 Apr 2006 16:39:17 -0700
Cc: "Levand, Geoffrey" <Geoffrey.Levand@am.sony.com>, linux-mips@linux-mips.org
In-reply-to: <20060415.010518.126141918.anemo@mba.ocn.ne.jp>
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References: <20060415.010518.126141918.anemo@mba.ocn.ne.jp>
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Atsushi Nemoto wrote:
> On Fri, 14 Apr 2006 08:38:00 -0700, Geoff Levand
> <geoffrey.levand@am.sony.com> wrote:
>> I seem to get a lot of problems with an nfs root fs
>> on tx4937 board.  I haven't looked at it closely yet,
>> but I guess its some problem with the ne2000 driver.
>> I wanted to know if you know anything about this.
> 
> Please look at:
> 
> http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20060226.23054
> 1.75185772.anemo%40mba.ocn.ne.jp
> 
> With a quick glance of ne.c, it seems ei_status.stop_page should be
> changed to 0x60 on the board.  Please confirm its value.
> 

Yes, this seems to fix the problem.


-Geoff

Index: 2.6.16.1/drivers/net/ne.c
===================================================================
--- 2.6.16.1.orig/drivers/net/ne.c      2006-04-14 15:54:41.000000000 -0700
+++ 2.6.16.1/drivers/net/ne.c   2006-04-14 16:27:51.000000000 -0700
@@ -140,7 +140,8 @@
 #define NE1SM_START_PG 0x20    /* First page of TX buffer */
 #define NE1SM_STOP_PG  0x40    /* Last page +1 of RX ring */
 #define NESM_START_PG  0x40    /* First page of TX buffer */
-#define NESM_STOP_PG   0x80    /* Last page +1 of RX ring */
+#define NESM_8_STOP_PG 0x60    /* Last page +1 of RX ring, RTL8019 8 bit mode 
*/
+#define NESM_STOP_PG   0x80    /* Last page +1 of RX ring */

 #if defined(CONFIG_PLAT_MAPPI)
 #  define DCR_VAL 0x4b
@@ -516,6 +517,7 @@
        ei_status.tx_start_page = start_page;
        ei_status.stop_page = stop_page;
 #if defined(CONFIG_TOSHIBA_RBTX4927) || defined(CONFIG_TOSHIBA_RBTX4938)
+       ei_status.stop_page = NESM_8_STOP_PG;
        wordlength = 1;
 #endif


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