From de2273876e3fb5a5a62cc538936d06b014b06eda Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Mon, 21 Nov 2016 23:27:01 +0100 Subject: net: dsa: mv88e6xxx: Add mv88e6390 statistics unit init The statistics unit on the mv88e6390 needs the histogram mode to be configured in a different register compared to other devices. Add an ops to do this. Signed-off-by: Andrew Lunn v2: Rename to mv88e6390_g1_stats_set_histogram Move into global1.c Signed-off-by: David S. Miller --- drivers/net/dsa/mv88e6xxx/global1.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'drivers/net/dsa/mv88e6xxx/global1.c') diff --git a/drivers/net/dsa/mv88e6xxx/global1.c b/drivers/net/dsa/mv88e6xxx/global1.c index a3a441f9c458..fda8b3c7adad 100644 --- a/drivers/net/dsa/mv88e6xxx/global1.c +++ b/drivers/net/dsa/mv88e6xxx/global1.c @@ -33,6 +33,26 @@ int mv88e6xxx_g1_wait(struct mv88e6xxx_chip *chip, int reg, u16 mask) return mv88e6xxx_wait(chip, chip->info->global1_addr, reg, mask); } +/* Offset 0x1c: Global Control 2 */ + +int mv88e6390_g1_stats_set_histogram(struct mv88e6xxx_chip *chip) +{ + u16 val; + int err; + + err = mv88e6xxx_g1_read(chip, GLOBAL_CONTROL_2, &val); + if (err) + return err; + + val |= GLOBAL_CONTROL_2_HIST_RX_TX; + + err = mv88e6xxx_g1_write(chip, GLOBAL_CONTROL_2, val); + + return err; +} + +/* Offset 0x1d: Statistics Operation 2 */ + static int mv88e6xxx_g1_stats_wait(struct mv88e6xxx_chip *chip) { return mv88e6xxx_g1_wait(chip, GLOBAL_STATS_OP, GLOBAL_STATS_OP_BUSY); -- cgit v1.2.3