9 Jun
2020
9 Jun
'20
3:39 p.m.
On 09.06.2020, at 15:37, Heiko Stuebner heiko@sntech.de wrote:
From: Heiko Stuebner heiko.stuebner@theobroma-systems.com
The Linux kernel does set the clock delays to
- 0.2 ns (their default, and lowest, hardware value) if delays should
not be enabled
- 2.0 ns (which causes the data to be sampled at exactly half way between
clock transitions at 1000 Mbps) if delays should be enabled depending on the interface mode
See https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/driv...
So instead of using arbitrary delay values like now, mimic this behaviour.
The behaviour is the same for all of vsc8530/8531/8540/8541 so move that to a shared function while at it.
Signed-off-by: Heiko Stuebner heiko.stuebner@theobroma-systems.com
Reviewed-by: Philipp Tomsich philipp.tomsich@theobroma-systems.com