From: Stefano Babic <sbabic@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 3/4] efikamx: configure Smarttop PCBID and LED pads in DCD for convenience
Date: Mon, 27 Aug 2012 08:17:17 +0200 [thread overview]
Message-ID: <503B10ED.3000501@denx.de> (raw)
In-Reply-To: <1345663541-26682-3-git-send-email-matt@genesi-usa.com>
On 22/08/2012 21:25, Matt Sealey wrote:
> PCBID pads seem to need time to settle due to external pulldowns, otherwise
> we are reading floating GPIO pins with implicit pad pullups and get the wrong
> data. However we can't "wait" at the time we need them before relocation,
> since timers are not available. The time taken to get from DCD to the code
> requiring the pads set seems to be more than long enough (even with caches
> enabled).
>
> We have space in the DCD due to the DDR settings changes to configure all
> the pad settings we need for this, plus the LED pad settings too which
> reduces the amount of code required later on.
>
> Signed-off-by: Matt Sealey <matt@genesi-usa.com>
> ---
Applied to u-boot-imx, thanks.
Best regards,
Stefano Babic
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next prev parent reply other threads:[~2012-08-27 6:17 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-22 19:25 [U-Boot] [PATCH v2 1/4] efikamx: move and rename Efika MX directories and config files to prepare for new boards Matt Sealey
2012-08-22 19:25 ` [U-Boot] [PATCH 2/4] efikamx: remove drive strength function and roll its functionality into the DCD Matt Sealey
2012-08-23 10:20 ` Stefano Babic
2012-08-27 6:16 ` Stefano Babic
2012-08-22 19:25 ` [U-Boot] [PATCH 3/4] efikamx: configure Smarttop PCBID and LED pads in DCD for convenience Matt Sealey
2012-08-23 10:20 ` Stefano Babic
2012-08-27 6:17 ` Stefano Babic [this message]
2012-08-22 19:25 ` [U-Boot] [PATCH 4/4] efikamx: update to Efika MX Smarttop and Smartbook boards Matt Sealey
2012-08-23 10:21 ` Stefano Babic
2012-08-27 6:15 ` Stefano Babic
2012-08-27 15:58 ` [U-Boot] [PATCH v2] " Matt Sealey
2012-08-27 17:36 ` Stefano Babic
2012-08-23 9:48 ` [U-Boot] [PATCH v2 1/4] efikamx: move and rename Efika MX directories and config files to prepare for new boards Stefano Babic
2012-08-23 10:21 ` Stefano Babic
2012-08-27 6:17 ` Stefano Babic
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