diff options
| author | Daniel Golle <daniel@makrotopia.org> | 2023-04-16 14:08:14 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-04-20 02:37:45 +0200 |
| commit | 91daa4f62ce878b6e1ac5908aceb83550332447f (patch) | |
| tree | d56a4f974a1361a2579d6ee9a563ea40c046e9b6 /drivers/net/dsa/mt7530-mdio.c | |
| parent | page_pool: add DMA_ATTR_WEAK_ORDERING on all mappings (diff) | |
| download | linux-91daa4f62ce878b6e1ac5908aceb83550332447f.tar.xz linux-91daa4f62ce878b6e1ac5908aceb83550332447f.zip | |
net: dsa: mt7530: fix support for MT7531BE
There are two variants of the MT7531 switch IC which got different
features (and pins) regarding port 5:
* MT7531AE: SGMII/1000Base-X/2500Base-X SerDes PCS
* MT7531BE: RGMII
Moving the creation of the SerDes PCS from mt753x_setup to mt7530_probe
with commit 6de285229773 ("net: dsa: mt7530: move SGMII PCS creation
to mt7530_probe function") works fine for MT7531AE which got two
instances of mtk-pcs-lynxi, however, MT7531BE requires mt7531_pll_setup
to setup clocks before the single PCS on port 6 (usually used as CPU
port) starts to work and hence the PCS creation failed on MT7531BE.
Fix this by introducing a pointer to mt7531_create_sgmii function in
struct mt7530_priv and call it again at the end of mt753x_setup like it
was before commit 6de285229773 ("net: dsa: mt7530: move SGMII PCS
creation to mt7530_probe function").
Fixes: 6de285229773 ("net: dsa: mt7530: move SGMII PCS creation to mt7530_probe function")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Acked-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Link: https://lore.kernel.org/r/ZDvlLhhqheobUvOK@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/dsa/mt7530-mdio.c')
| -rw-r--r-- | drivers/net/dsa/mt7530-mdio.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/net/dsa/mt7530-mdio.c b/drivers/net/dsa/mt7530-mdio.c index 34a547b88e49..088533663b83 100644 --- a/drivers/net/dsa/mt7530-mdio.c +++ b/drivers/net/dsa/mt7530-mdio.c @@ -81,14 +81,17 @@ static const struct regmap_bus mt7530_regmap_bus = { }; static int -mt7531_create_sgmii(struct mt7530_priv *priv) +mt7531_create_sgmii(struct mt7530_priv *priv, bool dual_sgmii) { - struct regmap_config *mt7531_pcs_config[2]; + struct regmap_config *mt7531_pcs_config[2] = {}; struct phylink_pcs *pcs; struct regmap *regmap; int i, ret = 0; - for (i = 0; i < 2; i++) { + /* MT7531AE has two SGMII units for port 5 and port 6 + * MT7531BE has only one SGMII unit for port 6 + */ + for (i = dual_sgmii ? 0 : 1; i < 2; i++) { mt7531_pcs_config[i] = devm_kzalloc(priv->dev, sizeof(struct regmap_config), GFP_KERNEL); @@ -208,11 +211,8 @@ mt7530_probe(struct mdio_device *mdiodev) if (IS_ERR(priv->regmap)) return PTR_ERR(priv->regmap); - if (priv->id == ID_MT7531) { - ret = mt7531_create_sgmii(priv); - if (ret) - return ret; - } + if (priv->id == ID_MT7531) + priv->create_sgmii = mt7531_create_sgmii; return dsa_register_switch(priv->ds); } |