separate PPS_out with time_valid.
    Disable transmitting packets when link is not up.

    command "ptp [mode] [port,df=0]" or "mode [mode] [port,df=0]"
  will set the ptp mode of port.
    Currently, if one port act as slave, its mode should be set
  after other ports.

  before it acts as master.
    A known bug is sync cannot build after link reset.

    Make gensdbfs support the file order. sdb files should starts with xxfilename,
like 00wr-init. (In gensdbfs.c, I change the readdir() to scandir())
   Add two sdb files on 0x2e0000 to support the dualport's calibration and sfp
database. (db-calibration and db-sfp-database)
   Bug fix in shell/cmd_sfp.c.

   Now the one WR port function works well.

  Now it works as below:
    1. default udp tx dst mac is the gateway of node's ip.
    2. It will send arp request after getting the udp tx dst ip.
    3. It stops sending arp request after getting the udp tx dst mac addr.

        tcpip tcp x , set the tcp server listen port
        tcpip udp txip x.x.x.x , set the udp tx destination ip addr.
        tcpip udp txport x , set the udp tx destination port, default
2000
        tcpip udp rxport x , set the udp rx destiniation port. default
(>256).
        tcpip udp txgw x.x.x.x , set the udp gateway, default x.x.x.1
        tcpip udp txsn x.x.x.x , set the subnet, default 255.255.255.0

On VFC-HD reading EEPROM was taking too long. E.g. reading SFP database through
snmp was taking ~0.5s which was enough to break the timestamps for received PTP
frames and thus the timing. See issue 1649 in wr-cores project on OHWR.

There is no ns monotonic counter:(
Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Also print it in the ps command
Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

This introduces "mode abscal", that forces a gm-lookalike mode in the
node, to send sync once per second. See "absolute calibration" document
by Peter Jansweijer from nikhef. The option is Kconfig'd, but on by
default.
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Conflicts:
	ppsi

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

        For naming consistency, file has been renamed.
Signed-off-by: Michel Arruat <michel.arruat@cern.ch>

I regenerated the header because:
- the name of the HDL module changed from transmission to streamers
- I added new register (tx_cfg5)

        This new test program is using ldevmap and lextest because it is
        interactive.
Signed-off-by: Michel Arruat <michel.arruat@cern.ch>

this is a software part of new (additional) diagnostics for WR PTP Core.
It allows to access diagnostics values through WB registers (e.g. PCI
bus). This is useful for integration of WR with CERN cotrols infrastructure,
such as FESA. It allows the host machine (of SPEC/SVEC/etc) to easily
access information about the health of WR PTP Core.