From: Ben Dooks <ben-linux@fluff.org>
To: netdev@vger.kernel.org
Cc: jeff@garzik.org, akpm@linux-foundation.org, daniel@caiaq.de,
laurentp@cse-semaphore.com, Ben Dooks <ben-linux@fluff.org>
Subject: [PATCH 23/24 for-2.6.25] DM9000: Update retry count whilst identifying chip
Date: Tue, 05 Feb 2008 00:02:22 +0000 [thread overview]
Message-ID: <20080205000819.127448205@fluff.org.uk> (raw)
In-Reply-To: 20080205000159.432081941@fluff.org.uk
[-- Attachment #1: simtec/simtec-drivers-net-dm9000-id-retry.patch --]
[-- Type: text/plain, Size: 959 bytes --]
Reading the ID register does not always return the correct ID
from the device, so we retry several times to see if we get
a correct value.
These failures seem to be excaserbated by the speed of the
access to the chip (possibly time between issuing the address
and then the data cycle).
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Index: linux-2.6.24-quilt3/drivers/net/dm9000.c
===================================================================
--- linux-2.6.24-quilt3.orig/drivers/net/dm9000.c
+++ linux-2.6.24-quilt3/drivers/net/dm9000.c
@@ -643,7 +643,7 @@ dm9000_probe(struct platform_device *pde
dm9000_reset(db);
/* try two times, DM9000 sometimes gets the first read wrong */
- for (i = 0; i < 2; i++) {
+ for (i = 0; i < 8; i++) {
id_val = ior(db, DM9000_VIDL);
id_val |= (u32)ior(db, DM9000_VIDH) << 8;
id_val |= (u32)ior(db, DM9000_PIDL) << 16;
--
Ben (ben@fluff.org, http://www.fluff.org/)
'a smiley only costs 4 bytes'
next prev parent reply other threads:[~2008-02-05 0:08 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-05 0:01 [PATCH 00/24 for-2.6.25] DM9000 updates for 2.6.25 Ben Dooks
2008-02-05 0:02 ` [PATCH 01/24 for-2.6.25] DM9000: Fix endian-ness of data accesses. Patch from: Laurent Pinchart <laurentp@cse-semaphore.com> Ben Dooks
2008-02-05 0:13 ` [PATCH 01/24 for-2.6.25] DM9000: Fix endian-ness of data accesses Ben Dooks
2008-02-05 22:57 ` [PATCH 01/24 for-2.6.25] DM9000: Fix endian-ness of data accesses. Patch from: Laurent Pinchart <laurentp@cse-semaphore.com> Francois Romieu
2008-02-06 11:46 ` Jeff Garzik
2008-02-07 13:28 ` Laurent Pinchart
2008-02-07 14:54 ` Jeff Garzik
2008-02-07 13:30 ` Christoph Hellwig
2008-02-05 0:02 ` [PATCH 02/24 for-2.6.25] DM9000: Add platform data to specify external phy " Ben Dooks
2008-02-05 0:14 ` [PATCH 02/24 for-2.6.25] DM9000: Add platform data to specify external phy Ben Dooks
2008-02-05 0:02 ` [PATCH 03/24 for-2.6.25] DM9000 use dev_xxx() instead of printk for output Ben Dooks
2008-02-05 0:02 ` [PATCH 04/24 for-2.6.25] DM9000 update debugging macros to use debug level Ben Dooks
2008-02-05 0:02 ` [PATCH 05/24 for-2.6.25] DM9000: Pass IRQ flags via platform resources Ben Dooks
2008-02-05 0:02 ` [PATCH 06/24 for-2.6.25] DM9000: Remove old timer based poll routines Ben Dooks
2008-02-05 0:02 ` [PATCH 07/24 for-2.6.25] DM9000: Add initial ethtool support Ben Dooks
2008-02-05 22:50 ` Francois Romieu
2008-02-06 22:03 ` Ben Dooks
2008-02-06 21:52 ` Francois Romieu
2008-02-06 22:16 ` Ben Dooks
2008-02-05 0:02 ` [PATCH 08/24 for-2.6.25] DM9000: Do not sleep with spinlock and IRQs held Ben Dooks
2008-02-05 0:02 ` [PATCH 09/24 for-2.6.25] DM9000: Use msleep() instead of udelay() Ben Dooks
2008-02-05 0:02 ` [PATCH 10/24 for-2.6.25] DM9000: Remove barely used SROM array read Ben Dooks
2008-02-05 0:02 ` [PATCH 11/24 for-2.6.25] DM9000: Add mutex to protect access Ben Dooks
2008-02-05 0:02 ` [PATCH 12/24 for-2.6.25] DM9000: Add ethtool support for reading and writing EEPROM Ben Dooks
2008-02-05 0:02 ` [PATCH 13/24 for-2.6.25] DM9000: Add ethtool control of msg_enable value Ben Dooks
2008-02-05 0:02 ` [PATCH 14/24 for-2.6.25] DM9000: Remove EEPROM initialisation code Ben Dooks
2008-02-05 0:02 ` [PATCH 15/24 for-2.6.25] DM9000: Ensure spinlock held whilst accessing EEPROM registers Ben Dooks
2008-02-05 0:02 ` [PATCH 16/24 for-2.6.25] DM9000: Remove unnecessary changelog in header comment Ben Dooks
2008-02-05 0:02 ` [PATCH 17/24 for-2.6.25] DM9000: Use netif_msg to enable debugging options Ben Dooks
2008-02-05 0:02 ` [PATCH 18/24 for-2.6.25] DM9000: Fix delays used by EEPROM read and write Ben Dooks
2008-02-05 0:02 ` [PATCH 19/24 for-2.6.25] DM9000: Remove cal_CRC() and use ether_crc_le instead Ben Dooks
2008-02-05 0:02 ` [PATCH 20/24 for-2.6.25] DM9000: Remove redudant use of "& 0xff" Ben Dooks
2008-02-05 0:02 ` [PATCH 21/24 for-2.6.25] DM9000: Add platform flag for no attached EEPROM Ben Dooks
2008-02-05 0:02 ` [PATCH 22/24 for-2.6.25] DM9000: Add support for MII ioctl() calls Ben Dooks
2008-02-05 0:02 ` Ben Dooks [this message]
2008-02-05 0:02 ` [PATCH 24/24 for-2.6.25] DM9000: Show the MAC address source after printing MAC Ben Dooks
2008-02-05 0:19 ` [PATCH 00/24 for-2.6.25] DM9000 updates for 2.6.25 Andrew Morton
2008-02-05 1:44 ` Ben Dooks
2008-02-05 9:52 ` Laurent Pinchart
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