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. > 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... bye, Heiko -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@xxxxxxx -- 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
