diff options
| author | Ansuel Smith <ansuelsmth@gmail.com> | 2021-05-14 23:59:59 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-05-15 01:30:22 +0300 |
| commit | 6e82a457e06252b59102486767539cc9c2aba60b (patch) | |
| tree | de4718f2b5b3b81a099e5b7de16001021ea3f756 | |
| parent | b7c818d194927bdc60ed15db55bb8654496a36b7 (diff) | |
| download | linux-6e82a457e06252b59102486767539cc9c2aba60b.tar.xz | |
net: dsa: qca8k: add support for qca8327 switch
qca8327 switch is a low tier version of the more recent qca8337.
It does share the same regs used by the qca8k driver and can be
supported with minimal change.
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/dsa/qca8k.c | 23 | ||||
| -rw-r--r-- | drivers/net/dsa/qca8k.h | 6 |
2 files changed, 26 insertions, 3 deletions
diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c index d4e3f81576ec..693bd9fd532b 100644 --- a/drivers/net/dsa/qca8k.c +++ b/drivers/net/dsa/qca8k.c @@ -1524,6 +1524,7 @@ static const struct dsa_switch_ops qca8k_switch_ops = { static int qca8k_sw_probe(struct mdio_device *mdiodev) { + const struct qca8k_match_data *data; struct qca8k_priv *priv; u32 id; @@ -1551,6 +1552,11 @@ qca8k_sw_probe(struct mdio_device *mdiodev) gpiod_set_value_cansleep(priv->reset_gpio, 0); } + /* get the switches ID from the compatible */ + data = of_device_get_match_data(&mdiodev->dev); + if (!data) + return -ENODEV; + /* read the switches ID register */ id = qca8k_read(priv, QCA8K_REG_MASK_CTRL); if (id < 0) @@ -1558,8 +1564,10 @@ qca8k_sw_probe(struct mdio_device *mdiodev) id >>= QCA8K_MASK_CTRL_ID_S; id &= QCA8K_MASK_CTRL_ID_M; - if (id != QCA8K_ID_QCA8337) + if (id != data->id) { + dev_err(&mdiodev->dev, "Switch id detected %x but expected %x", id, data->id); return -ENODEV; + } priv->ds = devm_kzalloc(&mdiodev->dev, sizeof(*priv->ds), GFP_KERNEL); if (!priv->ds) @@ -1624,9 +1632,18 @@ static int qca8k_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(qca8k_pm_ops, qca8k_suspend, qca8k_resume); +static const struct qca8k_match_data qca832x = { + .id = QCA8K_ID_QCA8327, +}; + +static const struct qca8k_match_data qca833x = { + .id = QCA8K_ID_QCA8337, +}; + static const struct of_device_id qca8k_of_match[] = { - { .compatible = "qca,qca8334" }, - { .compatible = "qca,qca8337" }, + { .compatible = "qca,qca8327", .data = &qca832x }, + { .compatible = "qca,qca8334", .data = &qca833x }, + { .compatible = "qca,qca8337", .data = &qca833x }, { /* sentinel */ }, }; diff --git a/drivers/net/dsa/qca8k.h b/drivers/net/dsa/qca8k.h index 86c585b7ec4a..87a8b10459c6 100644 --- a/drivers/net/dsa/qca8k.h +++ b/drivers/net/dsa/qca8k.h @@ -15,6 +15,8 @@ #define QCA8K_NUM_PORTS 7 #define QCA8K_MAX_MTU 9000 +#define PHY_ID_QCA8327 0x004dd034 +#define QCA8K_ID_QCA8327 0x12 #define PHY_ID_QCA8337 0x004dd036 #define QCA8K_ID_QCA8337 0x13 @@ -213,6 +215,10 @@ struct ar8xxx_port_status { int enabled; }; +struct qca8k_match_data { + u8 id; +}; + struct qca8k_priv { struct regmap *regmap; struct mii_bus *bus; |