Thread (39 messages) 39 messages, 6 authors, 2008-04-12

Re: [PATCH 1/2] ibm_newemac: PowerPC 440GX EMAC PHY clock workaround

From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2008-03-29 03:36:24
Also in: netdev

On Fri, 2008-03-28 at 22:18 -0400, Jeff Garzik wrote:
Valentine Barshak wrote:
quoted
The PowerPC 440GX Taishan board fails to reset EMAC3 (reset timeout error)
if there's no link. Because of that it fails to find PHY chip. The older ibm_emac
driver had a workaround for that: the EMAC_CLK_INTERNAL/EMAC_CLK_EXTERNAL macros,
which toggle the Ethernet Clock Select bit in the SDR0_MFR register. This patch
does the same for "ibm,emac-440gx" compatible chips. The workaround forces
clock on -all- EMACs, so we select clock under global emac_phy_map_lock.

Signed-off-by: Valentine Barshak <redacted>
---
 drivers/net/ibm_newemac/core.c |   16 +++++++++++++++-
 drivers/net/ibm_newemac/core.h |    8 ++++++--
 2 files changed, 21 insertions(+), 3 deletions(-)
is this for 2.6.25-rc?
Nah, too late imho.

Ben.
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