Re: imx21-hcd bugs, device descriptor read/64, error -110

Hi,

  I have now implemented the hub descriptor for i.MX21. It now says
that recognizes three ports. But there is still a problem with the
mapping of the registers (or rather I feel so). Of all the registers
specified in ohci.h, I am not able to map the following bits to the
corresponding i.MX21 ones:

In HcControl (control) register masks
========================

#define OHCI_CTRL_PLE	(1 << 2)	/* periodic list enable */
#define OHCI_CTRL_IE	(1 << 3)	/* isochronous enable */
#define OHCI_CTRL_CLE	(1 << 4)	/* control list enable */
#define OHCI_CTRL_BLE	(1 << 5)	/* bulk list enable */
#define OHCI_CTRL_HCFS	(3 << 6)	/* host controller functional state */
#define OHCI_CTRL_IR	(1 << 8)	/* interrupt routing */
#define OHCI_CTRL_RWC	(1 << 9)	/* remote wakeup connected */


In HcCommandStatus (cmdstatus) register masks
==================================
#define OHCI_CLF	(1 << 1)	/* control list filled */
#define OHCI_BLF	(1 << 2)	/* bulk list filled */
#define OHCI_OCR	(1 << 3)	/* ownership change request */

In Masks used with interrupt registers:
==========================

#define OHCI_INTR_OC	(1 << 30)	/* ownership change */
#define OHCI_INTR_MIE	(1 << 31)	/* master interrupt enable */

  What effect will any of these have on my USB functioning? As of now,
the hub and the ports are recognized when the kernel boots but when I
plug in a flash drive, nothing happens - I mean the device is not
recognized as such.


Thanks,
Midhun.

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