From: Stephen Hemminger <shemminger@linux-foundation•org>
To: Jeff Garzik <jgarzik@pobox•com>
Cc: netdev@vger•kernel.org
Subject: [PATCH 6/7] sky2: enable clocks before probe
Date: Thu, 24 May 2007 15:22:48 -0700 [thread overview]
Message-ID: <20070524222538.812999691@linux-foundation.org> (raw)
In-Reply-To: 20070524222242.555399884@linux-foundation.org
[-- Attachment #1: sky2-ex-power.patch --]
[-- Type: text/plain, Size: 1635 bytes --]
Some chips need to have internal clocks enabled (via PCI config)
before the PCI space is readable.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation•org>
---
drivers/net/sky2.c | 102 ++++++++++++++++++++++++++++++++++++++---------------
drivers/net/sky2.h | 19 +++++++++
2 files changed, 92 insertions(+), 29 deletions(-)
--- a/drivers/net/sky2.c 2007-05-24 15:22:14.000000000 -0700
+++ b/drivers/net/sky2.c 2007-05-24 15:22:33.000000000 -0700
@@ -2524,10 +2524,6 @@ static int __devinit sky2_init(struct sk
dev_warn(&hw->pdev->dev, "this driver not yet tested on this chip type\n"
"Please report success or failure to <netdev@vger•kernel.org>\n");
- /* Make sure and enable all clocks */
- if (hw->chip_id == CHIP_ID_YUKON_EX || hw->chip_id == CHIP_ID_YUKON_EC_U)
- sky2_pci_write32(hw, PCI_DEV_REG3, 0);
-
hw->chip_rev = (sky2_read8(hw, B2_MAC_CFG) & CFG_CHIP_R_MSK) >> 4;
/* This rev is really old, and requires untested workarounds */
@@ -3638,6 +3634,9 @@ static int __devinit sky2_probe(struct p
if (!hw->st_le)
goto err_out_iounmap;
+ /* On Yukon EC-U and EX need to force enabling all clocks */
+ pci_write_config_dword(pdev, PCI_DEV_REG3, 0);
+
err = sky2_init(hw);
if (err)
goto err_out_iounmap;
@@ -3822,8 +3821,7 @@ static int sky2_resume(struct pci_dev *p
pci_enable_wake(pdev, PCI_D0, 0);
/* Re-enable all clocks */
- if (hw->chip_id == CHIP_ID_YUKON_EX || hw->chip_id == CHIP_ID_YUKON_EC_U)
- sky2_pci_write32(hw, PCI_DEV_REG3, 0);
+ pci_write_config_dword(pdev, PCI_DEV_REG3, 0);
sky2_reset(hw);
--
Stephen Hemminger <shemminger@linux-foundation•org>
next prev parent reply other threads:[~2007-05-24 22:30 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-24 22:22 [PATCH 0/7] sky2: patches for 2.6.22 Stephen Hemminger
2007-05-24 22:22 ` [PATCH 1/7] sky2: dont set bogus bit in PHY register Stephen Hemminger
2007-05-30 13:53 ` Jeff Garzik
2007-05-24 22:22 ` [PATCH 2/7] sky2: checksum offload plus vlan bug Stephen Hemminger
2007-05-24 22:22 ` [PATCH 3/7] sky2: program proper register for fiber PHY Stephen Hemminger
2007-05-24 22:22 ` [PATCH 4/7] sky2: PHY page register fixes Stephen Hemminger
2007-05-30 13:59 ` Jeff Garzik
2007-05-24 22:22 ` [PATCH 5/7] sky2: enable IRQ on duplex renegotiation Stephen Hemminger
2007-05-30 13:54 ` Jeff Garzik
2007-05-24 22:22 ` Stephen Hemminger [this message]
2007-05-30 13:56 ` [PATCH 6/7] sky2: enable clocks before probe Jeff Garzik
2007-05-30 14:43 ` Stephen Hemminger
2007-05-30 17:45 ` Stephen Hemminger
2007-05-24 22:22 ` [PATCH 7/7] sky2: version 1.15 Stephen Hemminger
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