On Wed 08 June 2016 15:04:02 Sergei Shtylyov wrote: > On 6/8/2016 1:02 PM, Felipe Balbi wrote: > >> * Pali Rohár <pali.rohar@xxxxxxxxx> [160607 05:53]: > >>>> Tony, what do you think about that patch? > >>> > >>> Tony, PING > >> > >> Yeah I don't know, AFAIK we don't have a generic way to > >> force MUSB to change mode without ID pin. If you have figured > >> something generic for that which does not actually tinker with > >> the PHY registers directly, that should be the generic > >> musb_set_mode() that we've been wondering about for years. > > > > #define MUSB_TEST_FORCE_HOST 0x80 > > > > Can someone confirm on MUSB's docs (and actual running system) that this > > does what's supposed to do? > > The MUSB programmer's guide says the CID (sic) input is ignored when the > Force_Host bit is set. The host mode is entered when the Session bit is > set. But I don't have a MUSB hardware readily available to confirm. > > MBR, Sergei also says: While the FORCE_HOST bit remains set, the core will enter Host mode when the Session bit is set and **remain in Host mode until the Session bit is cleared even if a connected device is disconnected during the session.** The operating speed while in this mode **is determined for the setting of the FORCE_HS and FORCE_FS bits of the Testmode register** in Section 23.1.4.11. see http://talk.maemo.org/showthread.php?p=685367 It's not any fully operational hostmode. /j -- () ascii ribbon campaign /\ against html e-mail - against proprietary attachments http://www.georgedillon.com/web/html_email_is_evil.shtml http://www.nonhtmlmail.org/campaign.html http://www.georgedillon.com/web/html_email_is_evil_still.shtml http://www.gerstbach.at/2004/ascii/ (German) -- 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
