This patchset configures the Tunable Delay Lines of the SJA1105 P/Q/R/S switches. These add a programmable phase offset on the RGMII RX and TX clock signals and get used by the driver for fixed-link interfaces that use the rgmii-id, rgmii-txid or rgmii-rxid phy-modes.
Tested on a board where RGMII delays were already set up, by adding MAC-side delays on the RGMII interface towards a BCM5464R PHY and noticing that the MAC now reports SFD, preamble, FCS etc. errors. Conflicts trivially in drivers/net/dsa/sja1105/sja1105_spi.c with https://patchwork.ozlabs.org/project/netdev/list/?series=112614&state=* which must be applied first. Vladimir Oltean (2): net: dsa: sja1105: Remove duplicate rgmii_pad_mii_tx from regs net: dsa: sja1105: Add RGMII delay support for P/Q/R/S chips drivers/net/dsa/sja1105/sja1105.h | 3 +- drivers/net/dsa/sja1105/sja1105_clocking.c | 100 ++++++++++++++++++++- drivers/net/dsa/sja1105/sja1105_spi.c | 11 ++- 3 files changed, 106 insertions(+), 8 deletions(-) -- 2.17.1
