[PATCH net-next v2 0/8] net: dsa: realtek: rtl8365mb: add support for RTL8367S-VB

[Mieczyslaw Nalewaj]

This series adds support for the RTL8367S-VB (chip ID 0x6642) to the
rtl8365mb driver. The chip belongs to a new "family D" that differs from
the existing family C in its VLAN table layout, speed/RGMII configuration
and SerDes (SDS13) handling.

Patch 1 detects the chip and introduces the family D branch.
Patches 2-4 add port speed, PVID read and RGMII mode configuration.
Patches 5-6 add VLAN 4k table access and PVID set/clear.
Patches 7-8 add SDS13 PCS support and re-latching of the SerDes.

Family C's functional behaviour is unchanged. The only change in a
shared path is a mutex serializing SerDes register access, added in
patch 8.

Tested on TP-Link Archer AX55 v1 (RTL8367S-VB, CPU port over HSGMII to ipq5018)
with bridge VLAN filtering and per-port PVIDs.

Signed-off-by: Mieczyslaw Nalewaj <namiltd@xxxxxxxxx>
---
v2:
  - 2/8: mask r_speed to the width of the FORCE_SPEED field before passing
    it to FIELD_PREP(), so that the family D 2500M value (5) cannot trip
    the compile-time range check; bit 2 still goes to FORCE_SPEED2
    (reported by the automated review).
  - 4/8: the commit message now explains why EXT_TXC_DLY[5:3] is cleared
    for RGMII on EXT1: the vendor RGMII setup does it, and the init jam
    table leaves the field at 2, which would add an extra TX delay on top
    of tx-internal-delay-ps. Add a comment describing the EXT_TXC_DLY
    layout (Andrew Lunn's review).
  - 8/8: document the new struct rtl8365mb members in the kernel-doc
    comment (sds_lock, sds_relatch, sds_relatch_count,
    sds_misc_target_val), which fixes the kernel-doc warnings.
  - 1/8, 3/8, 5/8, 6/8, 7/8: no changes.

v1: https://lore.kernel.org/netdev/84fc7483-b22d-45ea-a3b8-3285dc357265@xxxxxxxxx/

Mieczyslaw Nalewaj (8):
  net: dsa: realtek: rtl8365mb: detect RTL8367S-VB
  net: dsa: realtek: rtl8365mb: set speed for family D
  net: dsa: realtek: rtl8365mb: get pvid for family D
  net: dsa: realtek: rtl8365mb: set RGMII mode for family D
  net: dsa: realtek: rtl8365mb: set and get vlan 4k for family D
  net: dsa: realtek: rtl8365mb: set/clear pvid for family D
  net: dsa: realtek: rtl8365mb: add family D SDS13 PCS support
  net: dsa: realtek: rtl8365mb: re-latch the family D SerDes

 drivers/net/dsa/realtek/rtl8365mb.h      |  14 +
 drivers/net/dsa/realtek/rtl8365mb_main.c | 555 ++++++++++++++++++++---
 drivers/net/dsa/realtek/rtl8365mb_vlan.c | 304 ++++++++++---
 3 files changed, 761 insertions(+), 112 deletions(-)
 create mode 100644 drivers/net/dsa/realtek/rtl8365mb.h

-- 
2.53.0