diff options
| author | kevans@FreeBSD.org <kevans@FreeBSD.org> | 2018-02-15 02:02:15 +0300 |
|---|---|---|
| committer | Joe Hershberger <joe.hershberger@ni.com> | 2018-03-22 23:05:27 +0300 |
| commit | 66526e70381dbaad58533cfbd7bce07c668205c6 (patch) | |
| tree | c37d3a1d4fd93dbe5f35d6a0f357ca127f12531e /drivers/net/phy/Kconfig | |
| parent | 2511930193a420eb8bb6cfa9c60912626f68ae67 (diff) | |
| download | u-boot-66526e70381dbaad58533cfbd7bce07c668205c6.tar.xz | |
net: phy: Add PHY_RTL8211E_PINE64_GIGABIT_FIX for realtek phys
Setting PHY_RTL8211E_PINE64_GIGABIT_FIX forces internal rx/tx delays off
on the PHY, as well as flipping some magical undocumented bits. The
magic number comes from the Pine64 engineering team, presumably as a
proxy from Realtek. This configuration fixes the throughput on some
Pine64 models. Packet loss of up to 60-70% has been observed without
this.
Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Diffstat (limited to 'drivers/net/phy/Kconfig')
| -rw-r--r-- | drivers/net/phy/Kconfig | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig index 25de3fb226..179e0418bc 100644 --- a/drivers/net/phy/Kconfig +++ b/drivers/net/phy/Kconfig @@ -139,6 +139,16 @@ config PHY_NATSEMI config PHY_REALTEK bool "Realtek Ethernet PHYs support" +config RTL8211E_PINE64_GIGABIT_FIX + bool "Fix gigabit throughput on some Pine64+ models" + depends on PHY_REALTEK + help + Configure the Realtek RTL8211E found on some Pine64+ models differently to + fix throughput on Gigabit links, turning off all internal delays in the + process. The settings that this touches are not documented in the CONFREG + section of the RTL8211E datasheet, but come from Realtek by way of the + Pine64 engineering team. + config RTL8211X_PHY_FORCE_MASTER bool "Ethernet PHY RTL8211x: force 1000BASE-T master mode" depends on PHY_REALTEK |