Hi Heiko, On Mon, May 21, 2012 at 11:40:33, Heiko Schocher wrote: > Hello Manjunathappa, > > Manjunathappa, Prakash wrote: > > Hi Heiko, > > > > I do not know how putting delay helped MSC device detection. > > Can you please check if MUSB is coming up in "b_idle" state(by > > $cat /sys/devices/platform/musb-da8xx/musb-hdrc/mode)? > > State should move to b_peripheral on connecting gadget cable. > > We have connected the USB0_ID pin to ground -> host only mode, so > I could not try this. > Ok, So it is coming up in which state, "$cat /sys/devices/platform/musb-da8xx/musb-hdrc/mode"? > > If you connect MSC device via mini-A connector, state should change to "a_host". > > OTG timer is responsible for above state changes, can you please check if below > > changes are present? > > diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c index 4da7492..a1a692e 100644 > > --- a/drivers/usb/musb/da8xx.c > > +++ b/drivers/usb/musb/da8xx.c > > @@ -76,6 +76,7 @@ > > #define DA8XX_INTR_TX_SHIFT 0 > > #define DA8XX_INTR_TX_MASK (DA8XX_USB_TX_EP_MASK << DA8XX_INTR_TX_SHIFT) > > > > +#define A_WAIT_BCON_TIMEOUT 1100 /* in ms */ > > #define DA8XX_MENTOR_CORE_OFFSET 0x400 > > > > #define CFGCHIP2 IO_ADDRESS(DA8XX_SYSCFG0_BASE + DA8XX_CFGCHIP2_REG) > > @@ -443,6 +444,7 @@ static int da8xx_musb_init(struct musb *musb) > > rev, __raw_readl(CFGCHIP2), > > musb_readb(reg_base, DA8XX_USB_CTRL_REG)); > > > > + musb->a_wait_bcon = A_WAIT_BCON_TIMEOUT; > > musb->isr = da8xx_musb_interrupt; > > return 0; > > fail: > > No, this change is not in current mainline ... > > Added this patch, and I get: > > $ make -s uImage > drivers/usb/musb/da8xx.c: In function 'da8xx_musb_init': > drivers/usb/musb/da8xx.c:448:22: error: 'A_WAIT_BCON_TIMEOUT' undeclared (first use in this function) > drivers/usb/musb/da8xx.c:448:22: note: each undeclared identifier is reported only once for each function it appears in > make[3]: *** [drivers/usb/musb/da8xx.o] Error 1 > make[2]: *** [drivers/usb/musb] Error 2 > make[1]: *** [drivers/usb] Error 2 > make: *** [drivers] Error 2 > $ > > Do you mean > > musb->a_wait_bcon = OTG_TIME_A_WAIT_BCON; > > ? This is setup in musb_core.c::allocate_instance() as Sergei Shtylyov > already commented ... nevertheless tried with this define your patch, > and my USB stick gets detected too... > Does that mean issue got fixed or Do you still have delay in da8xx_musb_interrupt handler? Thanks, Prakash -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
