ulpi_check_integrity returning error

[Arnaud Patard (Rtp)]

Fabio Estevam <festevam at gmail.com> writes:

> On Tue, Dec 14, 2010 at 1:03 PM, Arnaud Patard
> <arnaud.patard at rtp-net.org> wrote:
> ...
>>> I am curious to know if any of this boards can work in host mode OTG
>>> with current mainline kernel.
>>
>> I guess you need to configure portsc register into ulpi mode in the
>> .init function of the mxc_usbh_platform_data otherwise, you won't be
>> able to reach the ulpi.
>
> Yes, I am configuring the portsc register into ULPI mode:
>
> .portsc	= MXC_EHCI_MODE_ULPI,
>
> Code does reach ulpi read/write functions in arch/arm/plat-mxc/ulpi.c,
> but always return 0 in the reads.

Please, read again what I said. I'm not talking of .portsc but of
.init. To reach the ulpi, the portsc register should be set to ulpi mode
_before_ calling otg_init() in ehci_mxc_drv_probe() but the code is using
.portsc/setting portsc in ehci_mxc_setup() which is afaik _after_
ehci_mxc_drv_probe().


Arnaud