Djam/u-boot
1
0
Fork 0
mirror of https://github.com/u-boot/u-boot.git synced 2025-05-09 03:21:51 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

usb: dwc3: Fix UTMI/UTMIW phy interface initialization

Browse source 
DWC3 support phy interfaces like 8/16-bit UTMI+. phy interface
initialization code would handle them properly along with UNKNOWN
type by default if none of the user/board doesn't need to use the
phy interfaces at all.

The current code is masking the 8/16-bit UTMI+ interface bits globally
which indeed effect the UNKNOWN cases, therefore it effects the platforms
which are not using phy interfaces at all.

So, handle the phy masking bits accordingly on respective interface
type cases.

Fixes: 6b7ebff001 ("usb: dwc3: Add phy interface for dwc3_uboot")
Reported-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
This commit is contained in:
Jagan Teki 2019-12-18 13:00:02 +05:30 • committed by Marek Vasut
parent 5c7fa84f4b
commit 5c207282f5
2 changed files with 16 additions and 16 deletions
Download patch file Download diff file Expand all files Collapse all files

12
drivers/usb/dwc3/core.c
View file

@ -622,15 +622,19 @@ static void dwc3_uboot_hsphy_mode(struct dwc3_device *dwc3_dev,
/* 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;
reg &= ~(DWC3_GUSB2PHYCFG_PHYIF_MASK |
DWC3_GUSB2PHYCFG_USBTRDTIM_MASK);
reg |= DWC3_GUSB2PHYCFG_PHYIF(UTMI_PHYIF_8_BIT) |
DWC3_GUSB2PHYCFG_USBTRDTIM(USBTRDTIM_UTMI_8_BIT);
break;
case USBPHY_INTERFACE_MODE_UTMIW:
reg |= DWC3_GUSB2PHYCFG_USBTRDTIM_16BIT;
reg &= ~(DWC3_GUSB2PHYCFG_PHYIF_MASK |
DWC3_GUSB2PHYCFG_USBTRDTIM_MASK);
reg |= DWC3_GUSB2PHYCFG_PHYIF(UTMI_PHYIF_16_BIT) |
DWC3_GUSB2PHYCFG_USBTRDTIM(USBTRDTIM_UTMI_16_BIT);
break;
default:
break;