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| author | Ezequiel Garcia <ezequiel.garcia@free-electrons.com> | 2014-07-29 17:44:58 -0300 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2014-07-31 07:37:12 +0200 |
| commit | 6e71e070dae8acf4c3c7550b71aa4ea12a5bd215 (patch) | |
| tree | 41d7a2acc449817dbcce7358f103109bbe83bb84 /include | |
| parent | f81c936cc8e8cbd64ce436dd9a8e0fcca2b69dcf (diff) | |
| download | barebox-6e71e070dae8acf4c3c7550b71aa4ea12a5bd215.tar.gz barebox-6e71e070dae8acf4c3c7550b71aa4ea12a5bd215.tar.xz | |
net: phy: Add minimal support for QSGMII PHY
Based on Linux's support by Thomas Petazzoni:
commit b9d12085f2f531fdea67f0361564e0812696227c
Author: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Tue Apr 15 15:50:19 2014 +0200
net: phy: add minimal support for QSGMII PHY
This commit adds the necessary definitions for the PHY layer to
recognize "qsgmii" as a valid PHY interface. A QSMII interface, as
defined at
http://en.wikipedia.org/wiki/Media_Independent_Interface#Quad_Serial_Gigabit_Media_Independent_Interface,
is "is a method of combining four SGMII lines into a 5Gbit/s
interface. QSGMII, like SGMII, uses LVDS signalling for the TX and RX
data and a single LVDS clock signal. QSGMII uses significantly fewer
signal lines than four SGMII busses."
This type of MAC <-> PHY connection might require special handling on
the MAC driver side, so it should be possible to express this type of
MAC <-> PHY connection, for example in the Device Tree.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: devicetree@vger.kernel.org
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/phy.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/phy.h b/include/linux/phy.h index 3229aa6300..7c5d754a12 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -54,6 +54,7 @@ typedef enum { PHY_INTERFACE_MODE_RGMII_TXID, PHY_INTERFACE_MODE_RTBI, PHY_INTERFACE_MODE_SMII, + PHY_INTERFACE_MODE_QSGMII, } phy_interface_t; #define PHY_INIT_TIMEOUT 100000 |