[PATCH] Voipac PXA270: UDC and UHC support

Robert Jarzmik robert.jarzmik at free.fr
Mon Mar 15 15:21:37 EDT 2010


Marek Vasut <marek.vasut at gmail.com> writes:

> Dne Pá 12. března 2010 18:49:54 Robert Jarzmik napsal(a):
>> Marek Vasut <marek.vasut at gmail.com> writes:
>> > Dne St 10. března 2010 05:43:00 Marek Vasut napsal(a):
>> >> Hi,
>> >> this patch adds UDC and UHC support (and formating fix, I hope you dont
>> >>  mind Eric).
>> >>
>> >> Signed-off-by: Marek Vasut <marek.vasut at gmail.com>
>> >
>> > revised patch
Yes, I feel that one much better.

One minor comments remain for me.
> +/******************************************************************************
> + * USB Gadget
> + ******************************************************************************/
> +#if defined(CONFIG_USB_GADGET_PXA27X)||defined(CONFIG_USB_GADGET_PXA27X_MODULE)
> +static struct gpio_vbus_mach_info vpac270_gpio_vbus_info = {
> +	.gpio_vbus		= GPIO41_VPAC270_UDC_DETECT,
> +	.gpio_pullup		= -1,
> +};
> +
> +static struct platform_device vpac270_gpio_vbus = {
> +	.name	= "gpio-vbus",
> +	.id	= -1,
> +	.dev	= {
> +		.platform_data	= &vpac270_gpio_vbus_info,
> +	},
> +};
> +
> +static void vpac270_udc_command(int cmd) 
> +{
> +	if (cmd == PXA2XX_UDC_CMD_CONNECT)
> +		UP2OCR |= UP2OCR_HXOE | UP2OCR_DPPUE | UP2OCR_DPPUBE;
> +	else if (cmd == PXA2XX_UDC_CMD_DISCONNECT)
> +		UP2OCR &= ~(UP2OCR_HXOE | UP2OCR_DPPUE | UP2OCR_DPPUBE);

In the "DISCONNECT" case, you reset UP2OCR_HXOE, meaning the usb port isn't a
USB Device anymore (neither a USB host). If that's on purpose, then all good, in
the other case, don't reset that one.

Otherwise, you can add for the UDC part :
Reviewed-by: Robert Jarzmik <robert.jarzmik at free.fr>

-- 
Robert



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