From: "Heiko Stübner" <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>
To: Addy Ke <addy.ke-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
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Subject: Re: [PATCH] ARM: dts: rockchip: set dw_mmc max-freq 150Mhz
Date: Fri, 05 Dec 2014 22:45:53 +0100 [thread overview]
Message-ID: <2413230.2M6GRRu59M@diego> (raw)
In-Reply-To: <1417661375-2872-1-git-send-email-addy.ke-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
Am Donnerstag, 4. Dezember 2014, 10:49:35 schrieb Addy Ke:
> All of mmc controllers include SDMMC, SDIO0, SDIO1, and EMMC on RK3288
> are limited to 150Mhz. It was mainly caused by two reasons:
> - RK3288's IO pad(except DDR IO pad) is generic, which can only support
> the max of 150Mhz.
> - Mmc controller was designed at 150Mhz, and the pressure test by IC team
> was based on this freequency point.
>
> Signed-off-by: Addy Ke <addy.ke-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
applied to my wip dts branch for 3.20 (on github)
Thanks
Heiko
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prev parent reply other threads:[~2014-12-05 21:45 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-04 2:49 [PATCH] ARM: dts: rockchip: set dw_mmc max-freq 150Mhz Addy Ke
[not found] ` <1417661375-2872-1-git-send-email-addy.ke-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2014-12-04 16:08 ` Doug Anderson
2014-12-05 21:45 ` Heiko Stübner [this message]
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