[PATCH 0/5] ARM: Berlin: Ethernet support

From: Antoine Tenart
Date: Fri Aug 29 2014 - 09:52:09 EST

Hi all,

This series introduce the Marvell Berlin Ethernet driver, allowing to
handle the fast Ethernet port. This driver is based on the mv643xx_eth
driver and reuse some of its functions. While I wanted to make these
functions common to the two drivers at first, I finally do think this
is not a great idea:
- Registers are very different.
- The mv643xx_eth supports up to 1000Mbps interfaces and performance
issues may occur, whereas the mvberlin_eth is only for fast Ethernet.
- The mvberlin_eth driver uses a hash table to filter incoming packets.
- A few other differences.

I tried to stay close to the mv643xx_eth implementation, so that the
discussion is still open, but I still ended up with lots of tiny
differences that can be hard to manage for both cases. In the end I do
think having two separate drivers is a good choice.

That being said, I tested the Ethernet communication with ICMP pings,
netcat, tried to use some network related softwares (such as ssh). Here
is an iperf output:

Client connecting to, TCP port 5001
TCP window size: 85.0 KByte (default)
[ 3] local port 44183 connected with port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 113 MBytes 94.8 Mbits/sec

Tests were done on a BG2Q DMP, and this series currently does not add
other device tree nodes than the ones for this board.



Antoine Tenart (5):
net: mvberlin_eth: add an Ethernet driver for Marvell Berlin
Documentation: bindings: net: add the Marvell Berlin Ethernet
Documentation: devicetree: net: mention Marvell Berlin
ARM: dts: berlin: add ethernet and mdio nodes
ARM: dts: berlin: enable the Ethernet port on the BG2Q DMP

.../devicetree/bindings/net/marvell-berlin.txt | 23 +
.../devicetree/bindings/net/marvell-orion-mdio.txt | 6 +-
arch/arm/boot/dts/berlin2q-marvell-dmp.dts | 13 +
arch/arm/boot/dts/berlin2q.dtsi | 19 +
drivers/net/ethernet/marvell/Kconfig | 9 +
drivers/net/ethernet/marvell/Makefile | 1 +
drivers/net/ethernet/marvell/mvberlin_eth.c | 2081 ++++++++++++++++++++
7 files changed, 2149 insertions(+), 3 deletions(-)
create mode 100644 Documentation/devicetree/bindings/net/marvell-berlin.txt
create mode 100644 drivers/net/ethernet/marvell/mvberlin_eth.c


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