The function mscc_miim_reset resets all the phys, but it is called for each phy separetely. One consequence of this is that the boot time is increased by 2 seconds.

The fix consists for calling the mscc_miim_reset function only once for all phys.

Signed-off-by: Horatiu Vultur horatiu.vultur@microchip.com Reviewed-by: Daniel Schwierzeck daniel.schwierzeck@gmail.com --- drivers/net/mscc_eswitch/ocelot_switch.c | 27 ++++++++++----------------- 1 file changed, 10 insertions(+), 17 deletions(-)

diff --git a/drivers/net/mscc_eswitch/ocelot_switch.c b/drivers/net/mscc_eswitch/ocelot_switch.c index bf08c35..815c2da 100644 --- a/drivers/net/mscc_eswitch/ocelot_switch.c +++ b/drivers/net/mscc_eswitch/ocelot_switch.c @@ -142,18 +142,16 @@ static const unsigned long ocelot_regs_ana_table[] = {

static struct mscc_miim_dev miim[NUM_PHY];

-static int mscc_miim_reset(struct mii_dev *bus) +static void mscc_phy_reset(void) { - struct mscc_miim_dev *miim = (struct mscc_miim_dev *)bus->priv; - - if (miim->phy_regs) { - writel(0, miim->phy_regs + PHY_CFG); - writel(PHY_CFG_RST | PHY_CFG_COMMON_RST - | PHY_CFG_ENA, miim->phy_regs + PHY_CFG); - mdelay(500); + writel(0, miim[INTERNAL].phy_regs + PHY_CFG); + writel(PHY_CFG_RST | PHY_CFG_COMMON_RST + | PHY_CFG_ENA, miim[INTERNAL].phy_regs + PHY_CFG); + if (wait_for_bit_le32(miim[INTERNAL].phy_regs + PHY_STAT, + PHY_STAT_SUPERVISOR_COMPLETE, + true, 2000, false)) { + pr_err("Timeout in phy reset\n"); } - - return 0; }

/* For now only setup the internal mdio bus */ @@ -194,7 +192,6 @@ static struct mii_dev *ocelot_mdiobus_init(struct udevice *dev) miim[INTERNAL].phy_regs = ioremap(phy_base[PHY], phy_size[PHY]); miim[INTERNAL].regs = ioremap(phy_base[MIIM], phy_size[MIIM]); bus->priv = &miim[INTERNAL]; - bus->reset = mscc_miim_reset; bus->read = mscc_miim_read; bus->write = mscc_miim_write;

@@ -210,13 +207,8 @@ __weak void mscc_switch_reset(void)

static void ocelot_stop(struct udevice *dev) { - struct ocelot_private *priv = dev_get_priv(dev); - int i; - mscc_switch_reset(); - for (i = 0; i < NUM_PHY; i++) - if (priv->bus[i]) - mscc_miim_reset(priv->bus[i]); + mscc_phy_reset(); }

static void ocelot_cpu_capture_setup(struct ocelot_private *priv) @@ -473,6 +465,7 @@ static int ocelot_probe(struct udevice *dev) }

priv->bus[INTERNAL] = ocelot_mdiobus_init(dev); + mscc_phy_reset();

for (i = 0; i < 4; i++) { phy_connect(priv->bus[INTERNAL], i, dev,