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Message-ID: <20210113115626.17381-3-bjarni.jonasson@microchip.com>
Date:   Wed, 13 Jan 2021 12:56:26 +0100
From:   Bjarni Jonasson <bjarni.jonasson@...rochip.com>
To:     Russell King <linux@...linux.org.uk>, Andrew Lunn <andrew@...n.ch>,
        "Heiner Kallweit" <hkallweit1@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
CC:     Bjarni Jonasson <bjarni.jonasson@...rochip.com>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        UNGLinuxDriver <UNGLinuxDriver@...rochip.com>
Subject: [PATCH net-next v2 2/2] sfp: add support for 100 base-x SFPs

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@...rochip.com>
---
 drivers/net/phy/sfp-bus.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/net/phy/sfp-bus.c b/drivers/net/phy/sfp-bus.c
index cdfa0a190962..3c67ad9951ab 100644
--- a/drivers/net/phy/sfp-bus.c
+++ b/drivers/net/phy/sfp-bus.c
@@ -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;
-- 
2.17.1

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