diff options
Diffstat (limited to 'target/linux/generic/backport-5.10/735-v5.14-09-net-dsa-qca8k-add-support-for-qca8327-switch.patch')
| -rw-r--r-- | target/linux/generic/backport-5.10/735-v5.14-09-net-dsa-qca8k-add-support-for-qca8327-switch.patch | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.10/735-v5.14-09-net-dsa-qca8k-add-support-for-qca8327-switch.patch b/target/linux/generic/backport-5.10/735-v5.14-09-net-dsa-qca8k-add-support-for-qca8327-switch.patch new file mode 100644 index 0000000000..72305850ca --- /dev/null +++ b/target/linux/generic/backport-5.10/735-v5.14-09-net-dsa-qca8k-add-support-for-qca8327-switch.patch @@ -0,0 +1,96 @@ +From 6e82a457e06252b59102486767539cc9c2aba60b Mon Sep 17 00:00:00 2001 +From: Ansuel Smith <ansuelsmth@gmail.com> +Date: Fri, 14 May 2021 22:59:59 +0200 +Subject: [PATCH] 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> +--- + drivers/net/dsa/qca8k.c | 23 ++++++++++++++++++++--- + drivers/net/dsa/qca8k.h | 6 ++++++ + 2 files changed, 26 insertions(+), 3 deletions(-) + +--- a/drivers/net/dsa/qca8k.c ++++ b/drivers/net/dsa/qca8k.c +@@ -1533,6 +1533,7 @@ static const struct dsa_switch_ops qca8k + static int + qca8k_sw_probe(struct mdio_device *mdiodev) + { ++ const struct qca8k_match_data *data; + struct qca8k_priv *priv; + u32 id; + +@@ -1560,6 +1561,11 @@ qca8k_sw_probe(struct mdio_device *mdiod + 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) +@@ -1567,8 +1573,10 @@ qca8k_sw_probe(struct mdio_device *mdiod + + 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) +@@ -1634,9 +1642,18 @@ static int qca8k_resume(struct device *d + 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 */ }, + }; + +--- 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; |