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Fix lan9372 dsa drivers cpu port restriction #6966

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Fix lan9372 dsa drivers cpu port restriction #6966

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5534cc0
LAN9372 TX port can be used as CPU port
brunoenten Jul 21, 2025
d54fea1
Show warning if selected CPU port cannot be used as such.
brunoenten Jul 21, 2025
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2 changes: 1 addition & 1 deletion drivers/net/dsa/microchip/ksz_common.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1806,7 +1806,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
.num_vlans = 4096,
.num_alus = 1024,
.num_statics = 256,
.cpu_ports = 0x30, /* can be configured as cpu port */
.cpu_ports = 0x38, /* can be configured as cpu port */
.port_cnt = 8, /* total physical port count */
.port_nirqs = 6,
.num_tx_queues = 8,
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2 changes: 2 additions & 0 deletions drivers/net/dsa/microchip/lan937x_main.c
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Expand Up @@ -219,6 +219,8 @@ void lan937x_config_cpu_port(struct dsa_switch *ds)

/* enable cpu port */
lan937x_port_setup(dev, dp->index, true);
} else {
dev_warn(ds->dev, "port %d cannot be used as cpu port on this device.\n", dp->index);
}
}

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