[U-Boot] [PATCH 3/3] M28: Disable USB power on boot

Fabio Estevam festevam at gmail.com
Wed May 23 15:01:22 CEST 2012


On Tue, May 22, 2012 at 8:32 PM, Marek Vasut <marex at denx.de> wrote:

>  void board_init_ll(void)
>  {
> +       /* Powerdown the USB */
> +       mxs_iomux_setup_pad(MX28_PAD_SSP2_SS1__USB1_OVERCURRENT);
> +       mxs_iomux_setup_pad(MX28_PAD_AUART3_TX__GPIO_3_13 |
> +                       MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP);
> +       gpio_direction_output(MX28_PAD_AUART3_TX__GPIO_3_13, 1);

I don't have access to the m28evk schematics, but please double check
if you really need to set this pin to '1' to powerdown the USB, or if
this should be a '0' instead.


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