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Code Issues Releases Activity

aw_usbphy: Only reroute OTG for phy0

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We only need to route OTG port to host mode on phy0 and if no VBUS
is present on the port, otherwise leave the port in periperal mode.
This commit is contained in:
Emmanuel Vadot 2017-09-26 19:20:50 +00:00
parent 1eca1d26fd
commit de355bea02
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=324021
1 changed files with 21 additions and 9 deletions
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30
sys/arm/allwinner/aw_usbphy.c
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@ -160,13 +160,6 @@ awusbphy_configure(device_t dev, int phyno)
if (sc->phy_conf->pmu_unk1 == true)
CLR4(sc->pmu[phyno], PMU_UNK_H3, PMU_UNK_H3_CLR);
if (sc->phy_conf->phy0_route == true) {
if (phyno == 0)
SET4(sc->phy_ctrl, OTG_PHY_CFG, OTG_PHY_ROUTE_OTG);
else
CLR4(sc->phy_ctrl, OTG_PHY_CFG, OTG_PHY_ROUTE_OTG);
}
SET4(sc->pmu[phyno], PMU_IRQ_ENABLE, PMU_ULPI_BYPASS |
PMU_AHB_INCR8 | PMU_AHB_INCR4 | PMU_AHB_INCRX_ALIGN);
}
@ -266,8 +259,11 @@ awusbphy_vbus_detect(device_t dev, int *val)
if (sc->vbus_det_valid) {
error = gpio_pin_is_active(sc->vbus_det_pin, &active);
if (error != 0)
if (error != 0) {
device_printf(dev, "Cannot get status of id pin %d\n",
error);
return (error);
}
*val = active;
return (0);
}
@ -300,7 +296,21 @@ awusbphy_phy_enable(device_t dev, intptr_t phy, bool enable)
/* If an external vbus is detected, do not enable phy 0 */
if (phy == 0) {
error = awusbphy_vbus_detect(dev, &vbus_det);
if (error == 0 && vbus_det == 1)
if (error)
goto out;
/* Depending on the PHY we need to route OTG to OHCI/EHCI */
if (sc->phy_conf->phy0_route == true) {
if (vbus_det == 0)
/* Host mode */
CLR4(sc->phy_ctrl, OTG_PHY_CFG,
OTG_PHY_ROUTE_OTG);
else
/* Peripheral mode */
SET4(sc->phy_ctrl, OTG_PHY_CFG,
OTG_PHY_ROUTE_OTG);
}
if (vbus_det == 1)
return (0);
} else
error = 0;
@ -308,6 +318,8 @@ awusbphy_phy_enable(device_t dev, intptr_t phy, bool enable)
error = regulator_enable(reg);
} else
error = regulator_disable(reg);
out:
if (error != 0) {
device_printf(dev,
"couldn't %s regulator for phy %jd\n",