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author | Markos Chandras <markos.chandras@imgtec.com> | 2015-03-19 10:28:14 +0000 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-04-13 14:03:56 +0200 |
commit | e8f86a9ba285bbf50aac67e03726e33bbf97f685 (patch) | |
tree | 81bb9a2277161b5352b798c8e0277d1eea049fb6 /drivers/mfd/arizona.h | |
parent | db5bb38e9e628c79bba709e0de6dea1863597caf (diff) |
net: ethernet: pcnet32: Setup the SRAM and NOUFLO on Am79C97{3, 5}
commit 87f966d97b89774162df04d2106c6350c8fe4cb3 upstream.
On a MIPS Malta board, tons of fifo underflow errors have been observed
when using u-boot as bootloader instead of YAMON. The reason for that
is that YAMON used to set the pcnet device to SRAM mode but u-boot does
not. As a result, the default Tx threshold (64 bytes) is now too small to
keep the fifo relatively used and it can result to Tx fifo underflow errors.
As a result of which, it's best to setup the SRAM on supported controllers
so we can always use the NOUFLO bit.
Cc: <netdev@vger.kernel.org>
Cc: <linux-kernel@vger.kernel.org>
Cc: Don Fry <pcnet32@frontier.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/mfd/arizona.h')
0 files changed, 0 insertions, 0 deletions