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Diffstat (limited to 'Documentation/networking/phy.rst')
| -rw-r--r-- | Documentation/networking/phy.rst | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/networking/phy.rst b/Documentation/networking/phy.rst index cda1c0a0492a..e0a7c7af6525 100644 --- a/Documentation/networking/phy.rst +++ b/Documentation/networking/phy.rst @@ -73,7 +73,7 @@ The Reduced Gigabit Medium Independent Interface (RGMII) is a 12-pin electrical signal interface using a synchronous 125Mhz clock signal and several data lines. Due to this design decision, a 1.5ns to 2ns delay must be added between the clock line (RXC or TXC) and the data lines to let the PHY (clock -sink) have enough setup and hold times to sample the data lines correctly. The +sink) have a large enough setup and hold time to sample the data lines correctly. The PHY library offers different types of PHY_INTERFACE_MODE_RGMII* values to let the PHY driver and optionally the MAC driver, implement the required delay. The values of phy_interface_t must be understood from the perspective of the PHY |