[U-Boot] [PATCH] at91sam9260ek: pull up on gpio

Reinhard Meyer
2011-06-06T06:13:19Z

Dear Prchal Ji??,
> This fixes floating pin PB14 (DRXD) if it is unconnected, witch cause sometimes to stop autoboot by receiving char
> (noise). It turns internal pull up on this pin.
> It turns pull up on all other pins where should be pull up and is set in driver too.
>
> Signed-off-by: Jiri Prchal <jiri.prchal@aksignal.cz>
>
> --- u-boot-2010.09/include/configs/at91sam9260ek.h.orig 2010-09-28 23:20:55.000000000 +0200
> +++ u-boot-2010.09/include/configs/at91sam9260ek.h 2011-04-27 08:05:16.231133740 +0200
> @@ -55,6 +55,7 @@
> * Hardware drivers
> */
> #define CONFIG_AT91_GPIO 1
> +#define CONFIG_AT91_GPIO_PULLUP 1
> #define CONFIG_ATMEL_USART 1
> #undef CONFIG_USART0
> #undef CONFIG_USART1
This is based on old code.

Anyway, the Pull-Ups are enabled in the current (not yet in mainline) at91sam9260ek port.

Best Regards,
Reinhard