Hello All, I am working with a custom hardware platform based on OMAP4460 (ES1.0). The Linux kernel that I have used with the platform is L27.G.3 release from git.omapzoom.org
Hardware Setup: * The OTG port of the OMAP4460 is interfaced to a High Speed USB Hub. * It is also interfaced to a Mini-AB connector (with a mux in hardware that enables selection between the two). * The objective is to use the OTG port of the OMAP4460 in Host mode and get the High speed hub working. Issue: * I am unable to get the High Speed USB Hub to detect and work with the OTG Port in Host mode. * This is also the case when I connect an external, Self powered High Speed USB hub using the Mini-AB connector. Tests Run: When I connect an external Self powered Full Speed Hub to the OTG port (through the Mini-AB connector) the OMAP4460 is able to detect the hub and enumerate it. On connecting USB flash drives to the USB Hub, Linux detects insertion, enumerates the USB flash drives and mounts them. I have also connected the external, Self powered High Speed hub to the OTG port of the OMAP4430 Pandaboard, with the OTG port configured in Host mode. This works fine, OMAP4430 detects, enumerates and mounts the USB Flash drives connected to the High speed Hub. The kernel used on the OMAP4430 Pandaboard is the same (L27.G.3 from git.omapzoom.org) Has the OTG port on the OMAP4460 been tested in host mode with a High Speed device? How do I force the OTG port when configured in host mode to work in Full speed mode? Thank you for your time. Warm regards, Kanagesh -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
