diff options
| author |   Luwei Zhou <b45643@freescale.com> | 2014-10-10 13:15:29 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-10-14 14:45:08 -0400 |
| commit | 89bddcda7e4f4ff2586e736427405115c362bed4 (patch) | |
| tree | f545282de7d91e2efcd23d737cba07236e2b417e /drivers/net/ethernet/freescale/fec.h | |
| parent | net: fec: ptp: Use the 31-bit ptp timer. (diff) | |
| download | linux-dev-89bddcda7e4f4ff2586e736427405115c362bed4.tar.xz linux-dev-89bddcda7e4f4ff2586e736427405115c362bed4.zip | |
net: fec: ptp: Use hardware algorithm to adjust PTP counter.
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>
Diffstat (limited to 'drivers/net/ethernet/freescale/fec.h')
| -rw-r--r-- | drivers/net/ethernet/freescale/fec.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h index 1d5e1822bb2c..b0e60258d403 100644 --- a/drivers/net/ethernet/freescale/fec.h +++ b/drivers/net/ethernet/freescale/fec.h @@ -484,6 +484,9 @@ struct fec_enet_private { unsigned int itr_clk_rate; u32 rx_copybreak; + + /* ptp clock period in ns*/ + unsigned int ptp_inc; }; void fec_ptp_init(struct platform_device *pdev); |