diff options
| author | Valerie Henson <val_henson@linux.intel.com> | 2007-03-12 02:31:29 -0700 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-04-28 11:00:58 -0400 |
| commit | b3bff39a2b3574542f5007e19038393dfdd64c85 (patch) | |
| tree | 4e4f8caf4a9be3c215972c8e50c7198f279c076b | |
| parent | c28896a4244e2fbe28c94e3a6048625f5c15cab4 (diff) | |
| download | talos-obmc-linux-b3bff39a2b3574542f5007e19038393dfdd64c85.tar.gz talos-obmc-linux-b3bff39a2b3574542f5007e19038393dfdd64c85.zip | |
TULIP: Fix for 64-bit MIPS
From: Jim Gifford <maillist@jg555.com>, Grant Grundler <grundler@parisc-linux.org>, Peter Horton <pdh@colonel-panic.org>
With Grant's help I was able to get the tulip driver to work with 64 bit
MIPS.
[VAL: I'm happy with the 1.5 ms max delay; it doesn't seem excessive.]
Signed-off-by: Valerie Henson <val_henson@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
| -rw-r--r-- | drivers/net/tulip/media.c | 22 | ||||
| -rw-r--r-- | drivers/net/tulip/tulip.h | 7 |
2 files changed, 25 insertions, 4 deletions
diff --git a/drivers/net/tulip/media.c b/drivers/net/tulip/media.c index 20bd52b86993..1594160a0f62 100644 --- a/drivers/net/tulip/media.c +++ b/drivers/net/tulip/media.c @@ -44,8 +44,10 @@ static const unsigned char comet_miireg2offset[32] = { /* MII transceiver control section. Read and write the MII registers using software-generated serial - MDIO protocol. See the MII specifications or DP83840A data sheet - for details. */ + MDIO protocol. + See IEEE 802.3-2002.pdf (Section 2, Chapter "22.2.4 Management functions") + or DP83840A data sheet for more details. + */ int tulip_mdio_read(struct net_device *dev, int phy_id, int location) { @@ -272,13 +274,29 @@ void tulip_select_media(struct net_device *dev, int startup) int reset_length = p[2 + init_length]; misc_info = (u16*)(reset_sequence + reset_length); if (startup) { + int timeout = 10; /* max 1 ms */ iowrite32(mtable->csr12dir | 0x100, ioaddr + CSR12); for (i = 0; i < reset_length; i++) iowrite32(reset_sequence[i], ioaddr + CSR12); + + /* flush posted writes */ + ioread32(ioaddr + CSR12); + + /* Sect 3.10.3 in DP83840A.pdf (p39) */ + udelay(500); + + /* Section 4.2 in DP83840A.pdf (p43) */ + /* and IEEE 802.3 "22.2.4.1.1 Reset" */ + while (timeout-- && + (tulip_mdio_read (dev, phy_num, MII_BMCR) & BMCR_RESET)) + udelay(100); } for (i = 0; i < init_length; i++) iowrite32(init_sequence[i], ioaddr + CSR12); + + ioread32(ioaddr + CSR12); /* flush posted writes */ } + tmp_info = get_u16(&misc_info[1]); if (tmp_info) tp->advertising[phy_num] = tmp_info | 1; diff --git a/drivers/net/tulip/tulip.h b/drivers/net/tulip/tulip.h index 25f25da76917..ceac47e775ce 100644 --- a/drivers/net/tulip/tulip.h +++ b/drivers/net/tulip/tulip.h @@ -482,8 +482,11 @@ static inline void tulip_stop_rxtx(struct tulip_private *tp) udelay(10); if (!i) - printk(KERN_DEBUG "%s: tulip_stop_rxtx() failed\n", - pci_name(tp->pdev)); + printk(KERN_DEBUG "%s: tulip_stop_rxtx() failed" + " (CSR5 0x%x CSR6 0x%x)\n", + pci_name(tp->pdev), + ioread32(ioaddr + CSR5), + ioread32(ioaddr + CSR6)); } } |
