From: Marek Vasut <marex@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 3/3] M28: Disable USB power on boot
Date: Wed, 23 May 2012 15:07:31 +0200 [thread overview]
Message-ID: <201205231507.31841.marex@denx.de> (raw)
In-Reply-To: <CAOMZO5DiQjDVogb1Qt_2wiiqu8U_PxWnNnAKWB3+_dsJnFS9YA@mail.gmail.com>
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
next prev parent reply other threads:[~2012-05-23 13:07 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-22 23:32 [U-Boot] [PATCH 1/3] MX28: Add u-boot.mx28.sd and u-boot.mx28.nand make targets Marek Vasut
2012-05-22 23:32 ` [U-Boot] [PATCH 2/3] MX28: Cleanup mxsboot within make mrproper Marek Vasut
2012-05-22 23:32 ` [U-Boot] [PATCH 3/3] M28: Disable USB power on boot Marek Vasut
2012-05-23 11:14 ` Wolfgang Denk
2012-05-23 11:53 ` Marek Vasut
2012-05-23 12:48 ` Fabio Estevam
2012-05-23 13:08 ` Marek Vasut
2012-05-23 13:10 ` Fabio Estevam
2012-05-23 13:01 ` Fabio Estevam
2012-05-23 13:07 ` Marek Vasut [this message]
2012-05-23 13:15 ` Fabio Estevam
2012-05-23 13:20 ` Marek Vasut
2012-05-23 9:16 ` [U-Boot] [PATCH 1/3] MX28: Add u-boot.mx28.sd and u-boot.mx28.nand make targets Wolfgang Denk
2012-05-23 9:27 ` Marek Vasut
2012-05-23 9:44 ` Marek Vasut
2012-05-23 11:17 ` Wolfgang Denk
2012-05-23 11:34 ` Marek Vasut
2012-05-23 11:47 ` Wolfgang Denk
2012-05-23 12:22 ` Marek Vasut
2012-06-21 20:31 ` Wolfgang Denk
2012-06-22 12:44 ` Marek Vasut
2012-06-22 13:11 ` Wolfgang Denk
2012-05-23 11:16 ` Wolfgang Denk
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