net: dsa: mv88e6xxx: Power on/off SERDES on cmode change
The 6390 family has a number of SERDES interfaces per port. When the cmode changes, eg 1000Base-X to XAUI, the SERDES interface in use will also change. Power down the old SERDES interface and power up the new SERDES interface. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
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2d2e1dd299
Коммит
364e9d7776
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@ -19,6 +19,7 @@
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#include "chip.h"
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#include "port.h"
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#include "serdes.h"
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int mv88e6xxx_port_read(struct mv88e6xxx_chip *chip, int port, int reg,
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u16 *val)
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@ -372,6 +373,10 @@ int mv88e6390x_port_set_cmode(struct mv88e6xxx_chip *chip, int port,
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cmode = 0;
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}
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err = mv88e6390_serdes_power(chip, port, false);
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if (err)
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return err;
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if (cmode) {
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err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_STS, ®);
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if (err)
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@ -383,6 +388,10 @@ int mv88e6390x_port_set_cmode(struct mv88e6xxx_chip *chip, int port,
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err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_STS, reg);
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if (err)
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return err;
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err = mv88e6390_serdes_power(chip, port, true);
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if (err)
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return err;
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}
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chip->ports[port].cmode = cmode;
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