SMI clock should be running only for the time when there are transactions on the bus. Signed-off-by: Damian Eppel <deppel@xxxxxxxxxxx> Signed-off-by: Piyush Malgujar <pmalgujar@xxxxxxxxxxx> --- drivers/net/mdio/mdio-thunder.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/mdio/mdio-thunder.c b/drivers/net/mdio/mdio-thunder.c index 822d2cdd2f3599025f3e79d4243337c18114c951..715c835ace785da345ac037177b0f291678e4c47 100644 --- a/drivers/net/mdio/mdio-thunder.c +++ b/drivers/net/mdio/mdio-thunder.c @@ -58,6 +58,7 @@ static int thunder_mdiobus_pci_probe(struct pci_dev *pdev, struct resource r; struct mii_bus *mii_bus; struct cavium_mdiobus *bus; + union cvmx_smix_clk smi_clk; union cvmx_smix_en smi_en; /* If it is not an OF node we cannot handle it yet, so @@ -87,6 +88,10 @@ static int thunder_mdiobus_pci_probe(struct pci_dev *pdev, bus->register_base = nexus->bar0 + r.start - pci_resource_start(pdev, 0); + smi_clk.u64 = oct_mdio_readq(bus->register_base + SMI_CLK); + smi_clk.s.clk_idle = 1; + oct_mdio_writeq(smi_clk.u64, bus->register_base + SMI_CLK); + smi_en.u64 = 0; smi_en.s.en = 1; oct_mdio_writeq(smi_en.u64, bus->register_base + SMI_EN); -- 2.17.1
