From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marek Vasut <marex@denx.de>
Date: Wed, 23 May 2012 15:07:31 +0200
Subject: [U-Boot] [PATCH 3/3] M28: Disable USB power on boot
In-Reply-To: <CAOMZO5DiQjDVogb1Qt_2wiiqu8U_PxWnNnAKWB3+_dsJnFS9YA@mail.gmail.com>
References: <1337729574-30475-1-git-send-email-marex@denx.de>
	<1337729574-30475-3-git-send-email-marex@denx.de>
	<CAOMZO5DiQjDVogb1Qt_2wiiqu8U_PxWnNnAKWB3+_dsJnFS9YA@mail.gmail.com>
Message-ID: <201205231507.31841.marex@denx.de>
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Dear Fabio Estevam,

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

This is correct, it should be inverted.

Best regards,
Marek Vasut