usb: dwc3: Add phy interface for dwc3_uboot
U-Boot has two different variants of dwc3 initializations,
- with dm variant gadget, so the respective dm driver would
call the dwc3_init in core.
- with non-dm variant gadget, so the usage board file would
call dwc3_uboot_init in core.
The driver probe would handle all respective gadget properties
including phy interface via phy_type property and then trigger
dwc3_init for dm-variant gadgets.
So, to support the phy interface for non-dm variant gadgets,
the better option is dwc3_uboot_init since there is no
dedicated controller for non-dm variant gadgets.
This patch support for adding phy interface like 8/16-bit UTMI+
code for dwc3_uboot.
This change used Linux phy.h enum list, to make proper code
compatibility.
Cc: Marek Vasut <marex@denx.de>
Tested-by: Levin Du <djw@t-chip.com.cn>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 23af60c..f779562 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -613,6 +613,31 @@
dwc3_gadget_run(dwc);
}
+static void dwc3_uboot_hsphy_mode(struct dwc3_device *dwc3_dev,
+ struct dwc3 *dwc)
+{
+ enum usb_phy_interface hsphy_mode = dwc3_dev->hsphy_mode;
+ u32 reg;
+
+ /* Set dwc3 usb2 phy config */
+ reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0));
+ reg |= DWC3_GUSB2PHYCFG_PHYIF;
+ reg &= ~DWC3_GUSB2PHYCFG_USBTRDTIM_MASK;
+
+ switch (hsphy_mode) {
+ case USBPHY_INTERFACE_MODE_UTMI:
+ reg |= DWC3_GUSB2PHYCFG_USBTRDTIM_8BIT;
+ break;
+ case USBPHY_INTERFACE_MODE_UTMIW:
+ reg |= DWC3_GUSB2PHYCFG_USBTRDTIM_16BIT;
+ break;
+ default:
+ break;
+ }
+
+ dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg);
+}
+
#define DWC3_ALIGN_MASK (16 - 1)
/**
@@ -721,6 +746,8 @@
goto err0;
}
+ dwc3_uboot_hsphy_mode(dwc3_dev, dwc);
+
ret = dwc3_event_buffers_setup(dwc);
if (ret) {
dev_err(dwc->dev, "failed to setup event buffers\n");