diff options
| author | MD Danish Anwar <danishanwar@ti.com> | 2023-09-13 14:40:11 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-09-15 13:54:34 +0100 |
| commit | 0a205f0fe8dd2ab80531b54f01d6483f37120c0e (patch) | |
| tree | 1897949d72b10916504d6a9872a226b9469c3881 /net/ipv4/tcp_timer.c | |
| parent | 927c568d62128f48d6646d6df801c1ae25cf139f (diff) | |
| download | linux-0a205f0fe8dd2ab80531b54f01d6483f37120c0e.tar.gz linux-0a205f0fe8dd2ab80531b54f01d6483f37120c0e.tar.bz2 linux-0a205f0fe8dd2ab80531b54f01d6483f37120c0e.zip | |
net: ti: icssg-prueth: Add support for half duplex operation
This patch adds support for half duplex operation at 10M and 100M link
speeds for AM654x/AM64x devices.
- Driver configures rand_seed, a random number, in DMEM HD_RAND_SEED_OFFSET
field, which will be used by firmware for Back off time calculation.
- Driver informs FW about half duplex link operation in DMEM
PORT_LINK_SPEED_OFFSET field by setting bit 7 for 10/100M HD.
Hence, the half duplex operation depends on board design the
"ti,half-duplex-capable" property has to be enabled for ICSS-G ports if HW
is capable to perform half duplex.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_timer.c')
0 files changed, 0 insertions, 0 deletions