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| /openbmc/linux/drivers/net/ethernet/microchip/lan966x/ |
| H A D | lan966x_ptp.c | diff eb9c0d671e9432901b8a453e7915416f22f7f919 Sat Apr 09 13:41:40 CDT 2022 Horatiu Vultur <horatiu.vultur@microchip.com> net: lan966x: Update lan966x_ptp_get_nominal_value
The clk_per_cfg register represents the value added to the system clock
for each clock cycle. The issue is that the default value is wrong,
meaning that in case the DUT was a grandmaster then everone in the
network was too slow. In case there was a grandmaster, then there is no
issue because the DUT will configure clk_per_cfg register based on the
master frequency.
Fixes: d096459494a887 ("net: lan966x: Add support for ptp clocks")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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