diff options
| author | Robert Hancock <robert.hancock@calian.com> | 2020-10-28 11:15:40 -0600 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-10-30 17:11:44 -0700 |
| commit | 1887023a5e96f98249574e0785b7aa2e5742ca68 (patch) | |
| tree | 1b53385bb4124cda8b436468232516fe86da13f7 /include/linux/marvell_phy.h | |
| parent | be25f43aed73475f2d23b89cc755c2594644d47e (diff) | |
net: phy: marvell: add special handling of Finisar modules with 88E1111
The Finisar FCLF8520P2BTL 1000BaseT SFP module uses a Marvel 88E1111 PHY
with a modified PHY ID. Add support for this ID using the 88E1111
methods.
By default these modules do not have 1000BaseX auto-negotiation enabled,
which is not generally desirable with Linux networking drivers. Add
handling to enable 1000BaseX auto-negotiation when these modules are
used in 1000BaseX mode. Also, some special handling is required to ensure
that 1000BaseT auto-negotiation is enabled properly when desired.
Based on existing handling in the AMD xgbe driver and the information in
the Finisar FAQ:
https://www.finisar.com/sites/default/files/resources/an-2036_1000base-t_sfp_faqreve1.pdf
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/20201028171540.1700032-1-robert.hancock@calian.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux/marvell_phy.h')
| -rw-r--r-- | include/linux/marvell_phy.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/marvell_phy.h b/include/linux/marvell_phy.h index ff7b7607c8cf..52b1610eae68 100644 --- a/include/linux/marvell_phy.h +++ b/include/linux/marvell_phy.h @@ -25,6 +25,9 @@ #define MARVELL_PHY_ID_88X3310 0x002b09a0 #define MARVELL_PHY_ID_88E2110 0x002b09b0 +/* Marvel 88E1111 in Finisar SFP module with modified PHY ID */ +#define MARVELL_PHY_ID_88E1111_FINISAR 0x01ff0cc0 + /* The MV88e6390 Ethernet switch contains embedded PHYs. These PHYs do * not have a model ID. So the switch driver traps reads to the ID2 * register and returns the switch family ID |