net: fec: ptp: Use hardware algorithm to adjust PTP counter.

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The FEC IP supports hardware adjustment for ptp timer. Refer to the description of
ENET_ATCOR and ENET_ATINC registers in the spec about the hardware adjustment. This
patch uses hardware support to adjust the ptp offset and frequency on the slave side.

Signed-off-by: Luwei Zhou <b45643@freescale.com>
Signed-off-by: Frank Li <Frank.Li@freescale.com>
Signed-off-by: Fugang Duan <b38611@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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Luwei Zhou 2014-10-10 13:15:29 +08:00 • committed by David S. Miller

parent f28460b229

commit 89bddcda7e

2 changed files with 56 additions and 12 deletions

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3

drivers/net/ethernet/freescale/fec.h

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65

drivers/net/ethernet/freescale/fec_ptp.c

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