I think I can use the AX88190 driver, if it is available.
It does mention that this is a patch against 2.6.15
Does that mean it will not work with 2.6.24 kernel?
The phy bug work around is shown here, and seems to use the AX88190 driverRe: AX88790 L phy workaround
Todd Blumer
Tue, 12 Sep 2006 14:35:15 -0700
On 9/12/06, Todd Blumer <[EMAIL PROTECTED]> wrote:
I am in need of adding driver support for the Socket Rugged CF
Ethernet card. It uses the AX88790 L chip. Socket indicates that this
chip has a Phy bug and they provide a workaround.
ftp://ftp.socketcom.com/ea/Rugged_10-100_Driver_Changes_07-2006.zip
I'm guessing that the problem is only in a recent revision (the L
revision?) of the chip since I don't see such a workaround in the
standard axnet_cs.c driver.
Has anyone done this workaround? Any other comments or suggestions?
Otherwise, I'll try to implement these changes and submit a patch.
Here's a patch (against 2.6.15) that works with the Socket Rugged CF
10/100 Card. Comments welcome.
--
Todd Blumer
SDG Systems
Index: drivers/net/pcmcia/axnet_cs.c
===================================================================
--- drivers/net/pcmcia/axnet_cs.c (revision 332)
+++ drivers/net/pcmcia/axnet_cs.c (working copy)
@@ -13,6 +13,10 @@
axnet_cs.c 1.28 2002/06/29 06:27:37
+ Changelog:
+
+ Todd Blumer : added PHY bug workaround for AX88790
+
The network driver code is based on Donald Becker's NE2000 code:
Written 1992,1993 by Donald Becker.
@@ -59,6 +63,18 @@
#define AXNET_START_PG 0x40 /* First page of TX buffer */
#define AXNET_STOP_PG 0x80 /* Last page +1 of RX ring */
+#define AXNET_PHY_MR0 0
+#define AXNET_MR0_SW_RESET (1<<15)
+#define AXNET_MR0_LOOPBACK (1<<14)
+#define AXNET_MR0_SPEED100 (1<<13)
+#define AXNET_MR0_NWAY_ENA (1<<12)
+#define AXNET_MR0_PWRDN (1<<11)
+#define AXNET_MR0_ISOLATE (1<<10)
+#define AXNET_MR0_REDONWAY (1<<9)
+#define AXNET_MR0_FULL_DUP (1<<8)
+#define AXNET_MR0_COLTST (1<<7)
+/* remaining bits are reserved */
+
#define AXNET_RDC_TIMEOUT 0x02 /* Max wait in jiffies for Tx RDC */
#define IS_AX88190 0x0001
@@ -439,6 +455,22 @@
}
info->phy_id = (i < 32) ? i : -1;
+ if ((info->flags & IS_AX88790) && (info->phy_id != -1)) {
+ int data;
+ /*
+ * The AX88790L has a bug in the auto-negotiation (AN). A work-around
+ * is to turn off the phy, wait 2.5 secs, then re-enable AN. Once this
+ * action is taken, AN works fine.
+ *
+ * Note: this chip is in the Socket Rugged CF Ethernet card
+ */
+ data = mdio_read(dev->base_addr+ AXNET_MII_EEP, info->phy_id, AXNET_PHY_MR0);
+ mdio_write(dev->base_addr + AXNET_MII_EEP,
+ info->phy_id, AXNET_PHY_MR0, data | AXNET_MR0_PWRDN );
+ mdelay(2500);
+ mdio_write(dev->base_addr + AXNET_MII_EEP,
+ info->phy_id, AXNET_PHY_MR0, data | AXNET_MR0_REDONWAY | AXNET_MR0_NWAY_ENA);
+ }
link->dev = &info->node;
link->state &= ~DEV_CONFIG_PENDING;
SET_NETDEV_DEV(dev, &handle_to_dev(handle));
@@ -852,6 +884,7 @@
PCMCIA_DEVICE_MANF_CARD(0x026f, 0x0309),
PCMCIA_DEVICE_MANF_CARD(0x0274, 0x1106),
PCMCIA_DEVICE_MANF_CARD(0x8a01, 0xc1ab),
+ PCMCIA_DEVICE_MANF_CARD(0x0104, 0x02d2), /* "Socket", "CF 10/100 Ethernet Card", "Revision B", "05/11/06" */
PCMCIA_DEVICE_PROD_ID124("Fast Ethernet", "16-bit PC Card", "AX88190", 0xb4be14e3, 0x9a12eb6a, 0xab9be5ef),
PCMCIA_DEVICE_PROD_ID12("ASIX", "AX88190", 0x0959823b, 0xab9be5ef),
PCMCIA_DEVICE_PROD_ID12("Billionton", "LNA-100B", 0x552ab682, 0xbc3b87e1),
_______________________________________________
Re: AX88790 L phy workaround
Matthew Wilcox
Sun, 17 Sep 2006 06:01:42 -0700
On Tue, Sep 12, 2006 at 05:33:53PM -0400, Todd Blumer wrote:
> Here's a patch (against 2.6.15) that works with the Socket Rugged CF
> 10/100 Card. Comments welcome.
> + * The AX88790L has a bug in the auto-negotiation (AN). A work-around
> + * is to turn off the phy, wait 2.5 secs, then re-enable AN. Once this
> + * action is taken, AN works fine.
> + mdelay(2500);
mdelay is going to busy-wait for 2.5 seconds; can you not msleep()
instead? I don't think you're holding any locks at this point, nor do I
think you're in interrupt context, so sleeping should be OK.
_______________________________________________
Re: AX88790 L phy workaround
Todd Blumer
Sat, 23 Sep 2006 07:22:38 -0700
On 9/17/06, Matthew Wilcox <[EMAIL PROTECTED]> wrote:
> On Tue, Sep 12, 2006 at 05:33:53PM -0400, Todd Blumer wrote:
> > Here's a patch (against 2.6.15) that works with the Socket Rugged CF
> > 10/100 Card. Comments welcome.
> > + * The AX88790L has a bug in the auto-negotiation (AN). A work-around
> > + * is to turn off the phy, wait 2.5 secs, then re-enable AN. Once this
> > + * action is taken, AN works fine.
> > + mdelay(2500);
>
> mdelay is going to busy-wait for 2.5 seconds; can you not msleep()
> instead? I don't think you're holding any locks at this point, nor do I
> think you're in interrupt context, so sleeping should be OK.
>
Yes, you are correct, and that works fine. Thanks.
