diff options
Diffstat (limited to 'drivers/usb/musb/musb_core.c')
| -rw-r--r-- | drivers/usb/musb/musb_core.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 7766069bfc..dc740cf18e 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -34,6 +34,7 @@ void musb_start(void) { #if defined(CONFIG_MUSB_HCD) u8 devctl; + u8 busctl; #endif /* disable all interrupts */ @@ -45,6 +46,12 @@ void musb_start(void) /* put into basic highspeed mode and start session */ writeb(MUSB_POWER_HSENAB, &musbr->power); #if defined(CONFIG_MUSB_HCD) + /* Program PHY to use EXT VBUS if required */ + if (musb_cfg.extvbus == 1) { + busctl = musb_read_ulpi_buscontrol(musbr); + musb_write_ulpi_buscontrol(musbr, busctl | ULPI_USE_EXTVBUS); + } + devctl = readb(&musbr->devctl); writeb(devctl | MUSB_DEVCTL_SESSION, &musbr->devctl); #endif |