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drivers: net: stmmac: reworking the PCS code.

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The 3.xx and 4.xx synopsys gmacs have a very similar
PCS embedded module and they share almost the same registers:
for example:
  AN_Control, AN_Status, AN_Advertisement, AN_Link_Partner_Ability,
  AN_Expansion, TBI_Extended_Status.

Just the RGMII/SMII Control/Status register differs.

So This patch aims to reorganize and enhance the PCS support.
It removes the existent support from the dwmac1000/dwmac4_core.c
moving basic PCS functions inside a new file called: stmmac_pcs.h.

The patch also reviews the available APIs to be better shared among
different hardware and easily enhanced to support new features.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Giuseppe CAVALLARO
2016-06-24 15:16:24 +02:00
committed by David S. Miller
parent a5e4bd9913
commit 70523e639b
9 changed files with 350 additions and 165 deletions
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1
Documentation/networking/stmmac.txt
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@@ -285,6 +285,7 @@ Please see the following document:
o mmc_core.c/mmc.h: Management MAC Counters;
o stmmac_hwtstamp.c: HW timestamp support for PTP;
o stmmac_ptp.c: PTP 1588 clock;
o stmmac_pcs.h: Physical Coding Sublayer common implementation;
o dwmac-<XXX>.c: these are for the platform glue-logic file; e.g. dwmac-sti.c
for STMicroelectronics SoCs.