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[ARM] 4738/1: at91sam9261: Remove udc pullup enabling in board initialisation

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Currently the udc pullup is enabled by default on boot. If the device
is connected to a host at this time, the host starts the negotiation
before the udc/gadget driver is ready to handle it.

Signed-off-by: Christian Glindkamp <christian.glindkamp@taskit.de>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Christian Glindkamp 2008-01-03 12:15:23 +01:00 committed by Russell King
parent 1b41bdf68a
commit da7a42d60b
1 changed files with 1 additions and 5 deletions
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6
arch/arm/mach-at91/at91sam9261_devices.c
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@ -107,8 +107,6 @@ static struct platform_device at91sam9261_udc_device = {
void __init at91_add_device_udc(struct at91_udc_data *data)
{
unsigned long x;
if (!data)
return;
@ -117,9 +115,7 @@ void __init at91_add_device_udc(struct at91_udc_data *data)
at91_set_deglitch(data->vbus_pin, 1);
}
/* Pullup pin is handled internally */
x = at91_sys_read(AT91_MATRIX_USBPUCR);
at91_sys_write(AT91_MATRIX_USBPUCR, x | AT91_MATRIX_USBPUCR_PUON);
/* Pullup pin is handled internally by USB device peripheral */
udc_data = *data;
platform_device_register(&at91sam9261_udc_device);