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From: Stefano Babic <sbabic@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] arm: mx23: Fix VDDMEM misconfiguration
Date: Mon, 06 May 2013 10:22:11 +0200	[thread overview]
Message-ID: <51876833.1060502@denx.de> (raw)
In-Reply-To: <1367194665-9813-1-git-send-email-marex@denx.de>

On 29/04/2013 02:17, Marek Vasut wrote:
> The VDDMEM ramped up in very weird way as it was horribly misconfigured.
> Instead of setting up VDDMEM in one swipe, let it rise slowly the same
> way as VDDD and VDDA in spl_power_init.c and then only clear ILIMIT before
> memory gets inited. This makes sure the VDDMEM rises sanely, not jumps up
> and down as it did till now.
> 
> The VDDMEM prior to this change did this:
>      2V0____   .--------2V5
>        |    `--'
>  0V____|
> 
> The VDDMEM now does this:
>     2V0_____,-----------2V5
>       /
>  0V__|
> 
> Moreover, VDDIO on MX23 uses 25mV steps while MX28 uses 50mV steps,
> fix this difference too.
> 
> Signed-off-by: Marek Vasut <marex@denx.de>
> Cc: Fabio Estevam <fabio.estevam@freescale.com>
> Cc: Otavio Salvador <otavio@ossystems.com.br>
> Cc: Stefano Babic <sbabic@denx.de>
> ---

Applied to u-boot-imx, thanks.

Best regards,
Stefano Babic



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      parent reply	other threads:[~2013-05-06  8:22 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-04-29  0:17 [U-Boot] [PATCH] arm: mx23: Fix VDDMEM misconfiguration Marek Vasut
2013-04-29  3:04 ` Marek Vasut
2013-04-29 12:30 ` Otavio Salvador
2013-04-29 13:14   ` Kiril Zyapkov
2013-04-29 15:40     ` Marek Vasut
2013-04-29 15:45       ` Fabio Estevam
2013-04-29 17:19         ` Marek Vasut
2013-04-29 19:11           ` Fabio Estevam
2013-05-05 21:28 ` Marek Vasut
2013-05-06  8:22 ` Stefano Babic [this message]

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