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sfp: add support for 100 base-x SFPs

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Add support for 100Base-FX, 100Base-LX, 100Base-PX and 100Base-BX10 modules
This is needed for Sparx-5 switch.

Signed-off-by: Bjarni Jonasson <bjarni.jonasson@microchip.com>
Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Bjarni Jonasson 2021-01-13 12:56:26 +01:00 committed by Jakub Kicinski
parent b1ae3587d1
commit 6e12f35cef
1 changed files with 9 additions and 0 deletions
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9
drivers/net/phy/sfp-bus.c
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@ -265,6 +265,12 @@ void sfp_parse_support(struct sfp_bus *bus, const struct sfp_eeprom_id *id,
br_min <= 1300 && br_max >= 1200)
phylink_set(modes, 1000baseX_Full);
/* 100Base-FX, 100Base-LX, 100Base-PX, 100Base-BX10 */
if (id->base.e100_base_fx || id->base.e100_base_lx)
phylink_set(modes, 100baseFX_Full);
if ((id->base.e_base_px || id->base.e_base_bx10) && br_nom == 100)
phylink_set(modes, 100baseFX_Full);
/* For active or passive cables, select the link modes
* based on the bit rates and the cable compliance bytes.
*/
@ -389,6 +395,9 @@ phy_interface_t sfp_select_interface(struct sfp_bus *bus,
if (phylink_test(link_modes, 1000baseX_Full))
return PHY_INTERFACE_MODE_1000BASEX;
if (phylink_test(link_modes, 100baseFX_Full))
return PHY_INTERFACE_MODE_100BASEX;
dev_warn(bus->sfp_dev, "Unable to ascertain link mode\n");
return PHY_INTERFACE_MODE_NA;