[U-Boot] Fastboot and MUSB driver on OMAP3

[Paul Kocialkowski <contact@paulk.fr>]

I've been looking at getting fastboot working on my LG Optimus Black
(P970), codename sniper, port. I found out that the BeagleBoard code is
using that too, so I copied the required config options:

#define CONFIG_MUSB_GADGET
#define CONFIG_USB_MUSB_OMAP2PLUS
#define CONFIG_MUSB_PIO_ONLY
#define CONFIG_USB_GADGET_DUALSPEED
#define CONFIG_TWL4030_USB		1
#define CONFIG_USB_ETHER
#define CONFIG_USB_ETHER_RNDIS
#define CONFIG_USB_GADGET
#define CONFIG_USB_GADGET_VBUS_DRAW	0
#define CONFIG_USBDOWNLOAD_GADGET

#define CONFIG_G_DNL_VENDOR_NUM		0x0451
#define CONFIG_G_DNL_PRODUCT_NUM	0xd022
#define CONFIG_G_DNL_MANUFACTURER	"TI"
#define CONFIG_CMD_FASTBOOT
#define CONFIG_ANDROID_BOOT_IMAGE
#define CONFIG_USB_FASTBOOT_BUF_ADDR	CONFIG_SYS_LOAD_ADDR
#define CONFIG_USB_FASTBOOT_BUF_SIZE	0x07000000

And removed the ones that relate to the legacy code:

-#define CONFIG_MUSB_UDC                        1
-#define CONFIG_USB_OMAP3               1
-#define CONFIG_TWL4030_USB             1
-#define CONFIG_USB_DEVICE              1
-#define CONFIG_USB_TTY                 1

I also added the relevant "platform" data:
http://git.code.paulk.fr/gitweb/?p=u-boot-sniper.git;a=blob;f=board/lge/sniper/sniper.c;h=d26c695df78d0334c10f35927699ce323c88b514;hb=refs/heads/sniper#l83

The current state of the port is available for reference at:
http://git.code.paulk.fr/gitweb/?p=u-boot-sniper.git;a=shortlog;h=refs/heads/sniper
It is not yet ready to be pushed upstream.

With all this, I run the fastboot command and UART shows:
musb-hdrc: peripheral reset irq lost!

On the host side, I get the following messages from dmesg:

[11281.565099] usb 3-1: new high-speed USB device number 39 using xhci_hcd
[11283.178280] usb 3-1: Device not responding to set address.
[11283.378663] usb 3-1: Device not responding to set address.
[11283.579739] usb 3-1: device not accepting address 39, error -71
[11283.939123] usb 3-1: new high-speed USB device number 41 using xhci_hcd
[11283.939313] usb 3-1: Device not responding to set address.
[11284.140316] usb 3-1: Device not responding to set address.
[11284.341381] usb 3-1: device not accepting address 41, error -71

and so on until it fails:
[11286.007890] hub 3-0:1.0: unable to enumerate USB device on port 1

So it fails early. Is there something more I need to do in order to get
the new musb driver to work properly on my device?

-- 
Paul Kocialkowski, Replicant developer

Replicant is a fully free Android distribution running on several
devices, a free software mobile operating system putting the emphasis on
freedom and privacy/security.

Website: http://www.replicant.us/
Blog: http://blog.replicant.us/
Wiki/tracker/forums: http://redmine.replicant.us/

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