Merge branch 'hns-debug-dsaf'
authorDavid S. Miller <davem@davemloft.net>
Tue, 26 Apr 2016 05:09:18 +0000 (01:09 -0400)
committerDavid S. Miller <davem@davemloft.net>
Tue, 26 Apr 2016 05:09:18 +0000 (01:09 -0400)
commit218afa10d82d7809c9a7d14f1c769be8d7d6e2b8
tree2b387b90aa43ace8c180dd61305da98ba0cd3889
parent5a5f0792e98bdc8d2db89d1d49cb078fd836c1fa
parent218afd68a2e6de8226c4048e4dd051075648a9c6
Merge branch 'hns-debug-dsaf'

Yisen Zhuang says:

====================
net: hns: add support of debug dsaf device

There are two kinds of dsaf device in hns, one is for service ports,
contains crossbar in it, can work under different mode. Another is for
debug port, only can work under single port mode. The current code only
declares a dsaf device for both service ports and debug ports.It is not so
readability. This patch separates it to three platform devices to make the
code more simple and readability.

The diagram of all port in one platform device(old):
                                        CPU
                                         |
                                         |        DSAF(one platform device)
    --------------------------------------------------------------      /
    |                           |                  |      |      |     /
    |                          PPE                PPE    PPE     |    /
    |                           |                  |      |      |   /
    |                           |                  |      |      |  /
    |                        crossbar              |      |      | /
    |                           |                  |      |      |/
    |    -----------------------------------       |      |      |
    |    |      |      |      |      |      |      |      |      |
    |    |      |      |      |      |      |      |      |      |
    |   MAC    MAC    MAC    MAC    MAC    MAC    MAC    MAC     |
    |    |      |      |      |      |      |      |      |      |
    --------------------------------------------------------------
         |      |      |      |      |      |      |      |
        PHY    PHY    PHY    PHY    PHY    PHY    PHY    PHY

The diagram of separating ports to three platform(new):
                                                         CPU
                                                          |
                                    -----------------------------------
                                    |                     |           |
    ----------------------------------------------    ---------   ---------
    |                         |                  |    |       |   |   |   |
    |                        PPE                 |    |  PPE  |   |  PPE  |
    |                         |                  |    |   |   |   |   |   |
    |                         |                  |    |   |   |   |   |   |
    |                      crossbar              |    |   |   |   |   |   |
    |                         |                  |    |   |   |   |   |   |
    |   ----------------------------------       |    |   |   |   |   |   |
    |   |     |     |      |      |      |       |    |   |   |   |   |   |
    |   |     |     |      |      |      |       |    |   |   |   |   |   |
    |  MAC   MAC   MAC    MAC    MAC    MAC      |    |  MAC  |   |  MAC  |
    |   |     |     |      |      |      |       |    |   |   |   |   |   |
    ----------------------------------------------    ---------   ---------
        |     |     |      |      |      |    \        /  |        /  |
       PHY   PHY   PHY    PHY    PHY    PHY    \      /  PHY      /  PHY
                                                \    /           /
                                                 \  /           /
                                             DSAF(three platform device)

We take the compatibility into consideration, and it works well by using the
old dts file(tested on d02 board).

For more details, please see individual patches.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>