diff options
| author | Robert Hancock <hancock@sedsystems.ca> | 2019-06-12 23:49:06 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-06-15 05:11:53 +0300 |
| commit | 79c8bd15b61eca456c49d20d083f02a2614b4d12 (patch) | |
| tree | a1a6a97dabe62a2e9abe505cdd06527ff1895bd4 /drivers/net/dsa/microchip/ksz9477.c | |
| parent | 1fc33199185ddb2296270a7ae8114c40ab28b17b (diff) | |
| download | linux-79c8bd15b61eca456c49d20d083f02a2614b4d12.tar.xz | |
net: dsa: microchip: Support optional 125MHz SYNCLKO output
The KSZ9477 series chips have a SYNCLKO pin which by default outputs a
25MHz clock, but some board setups require a 125MHz clock instead. Added
a microchip,synclko-125 device tree property to allow indicating a
125MHz clock output is required.
Signed-off-by: Robert Hancock <hancock@sedsystems.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa/microchip/ksz9477.c')
| -rw-r--r-- | drivers/net/dsa/microchip/ksz9477.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c index 7be6d848b69f..508380f80875 100644 --- a/drivers/net/dsa/microchip/ksz9477.c +++ b/drivers/net/dsa/microchip/ksz9477.c @@ -258,6 +258,10 @@ static int ksz9477_reset_switch(struct ksz_device *dev) data16 |= (BROADCAST_STORM_VALUE * BROADCAST_STORM_PROT_RATE) / 100; ksz_write16(dev, REG_SW_MAC_CTRL_2, data16); + if (dev->synclko_125) + ksz_write8(dev, REG_SW_GLOBAL_OUTPUT_CTRL__1, + SW_ENABLE_REFCLKO | SW_REFCLKO_IS_125MHZ); + return 0; } |