diff options
Diffstat (limited to 'drivers/phy/keystone-usb-phy.c')
| -rw-r--r-- | drivers/phy/keystone-usb-phy.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/phy/keystone-usb-phy.c b/drivers/phy/keystone-usb-phy.c index e8146cabfa..14ac6bbbb2 100644 --- a/drivers/phy/keystone-usb-phy.c +++ b/drivers/phy/keystone-usb-phy.c @@ -9,6 +9,7 @@ #include <dm/device.h> #include <generic-phy.h> #include <asm/io.h> +#include <asm/arch/psc_defs.h> /* USB PHY control register offsets */ #define USB_PHY_CTL_UTMI 0x0000 @@ -22,15 +23,25 @@ #define PHY_REF_SSP_EN BIT(29) struct keystone_usb_phy { + u32 psc_domain; void __iomem *reg; }; static int keystone_usb_init(struct phy *phy) { u32 val; + int rc; struct udevice *dev = phy->dev; struct keystone_usb_phy *keystone = dev_get_priv(dev); + /* Release USB from reset */ + rc = psc_enable_module(keystone->psc_domain); + if (rc) { + debug("Cannot enable USB module"); + return -rc; + } + mdelay(10); + /* * VBUSVLDEXTSEL has a default value of 1 in BootCfg but shouldn't. * It should always be cleared because our USB PHY has an onchip VBUS @@ -72,13 +83,24 @@ static int keystone_usb_power_off(struct phy *phy) static int keystone_usb_exit(struct phy *phy) { + struct udevice *dev = phy->dev; + struct keystone_usb_phy *keystone = dev_get_priv(dev); + + if (psc_disable_module(keystone->psc_domain)) + debug("failed to disable USB module!\n"); + return 0; } static int keystone_usb_phy_probe(struct udevice *dev) { + int rc; struct keystone_usb_phy *keystone = dev_get_priv(dev); + rc = dev_read_u32(dev, "psc-domain", &keystone->psc_domain); + if (rc) + return rc; + keystone->reg = dev_remap_addr_index(dev, 0); if (!keystone->reg) { pr_err("unable to remap usb phy\n"); |