[U-Boot] [PATCH 8/8] net: zynq: Fix MDC setting for zynq

Joe Hershberger joe.hershberger at gmail.com
Mon Nov 2 22:39:36 CET 2015


On Tue, Oct 27, 2015 at 10:17 AM, Michal Simek <michal.simek at xilinx.com> wrote:
> Based on spec:
> "MDC must not exceed 2.5 MHz (MDC is only active during MDIO read and
> write operations)"
> Zynq is running on 111MHz. Current setting is 32 which is 111/32=3.47

Isn't it dependent on which board and what the clock setup is? Should
this be specified by the board?

> which is above of 2.5MHz.
> Using 48 divider will give us correct setting according spec
> (111/48=2.31).
>
> Signed-off-by: Michal Simek <michal.simek at xilinx.com>

Acked-by: Joe Hershberger <joe.hershberger at ni.com>


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