When usb3-phy label is found, PHY driver is called and serdes line is initialized. This is preparation for serdes/psgtr driver to configure GT lines based on description in DT.
Signed-off-by: Michal Simek michal.simek@xilinx.com ---
Changes in v3: - Add cover letter
Changes in v2: - Add missing header
drivers/usb/dwc3/dwc3-generic.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
diff --git a/drivers/usb/dwc3/dwc3-generic.c b/drivers/usb/dwc3/dwc3-generic.c index 01bd0ca190e3..2c5205df62cd 100644 --- a/drivers/usb/dwc3/dwc3-generic.c +++ b/drivers/usb/dwc3/dwc3-generic.c @@ -14,6 +14,7 @@ #include <dm/device-internal.h> #include <dm/lists.h> #include <dwc3-uboot.h> +#include <generic-phy.h> #include <linux/bitops.h> #include <linux/delay.h> #include <linux/usb/ch9.h> @@ -409,6 +410,17 @@ static int dwc3_glue_probe(struct udevice *dev) struct udevice *child = NULL; int index = 0; int ret; + struct phy phy; + + ret = generic_phy_get_by_name(dev, "usb3-phy", &phy); + if (!ret) { + ret = generic_phy_init(&phy); + if (ret) + return ret; + } else if (ret != -ENOENT) { + debug("could not get phy (err %d)\n", ret); + return ret; + }
glue->regs = dev_read_addr(dev);
@@ -420,6 +432,12 @@ static int dwc3_glue_probe(struct udevice *dev) if (ret) return ret;
+ if (phy.dev) { + ret = generic_phy_power_on(&phy); + if (ret) + return ret; + } + ret = device_find_first_child(dev, &child); if (ret) return ret;