From: Ian Campbell <ijc@hellion.org.uk>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] sunxi: ahci: Add a delay after enabling target power
Date: Fri, 14 Nov 2014 15:55:56 +0000 [thread overview]
Message-ID: <1415980556.7113.22.camel@hellion.org.uk> (raw)
In-Reply-To: <1415979007-19136-1-git-send-email-hdegoede@redhat.com>
On Fri, 2014-11-14 at 16:30 +0100, Hans de Goede wrote:
> If the target power is connected through a gpio, then give the target some
> time to power up before continuing with ahci / sata probing, this avoids
> link timeouts, without penalizing other boards where there is no target
> power gpio.
>
> Why 500 ms ? I started with 200, that was not enough, then I went to 500 which
> worked, lowering it to 350 broke things again, so 500 seems the minimum my
> vertex2 needs to be ready to get probed.
;-)
> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
prev parent reply other threads:[~2014-11-14 15:55 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-14 15:30 [U-Boot] [PATCH] sunxi: ahci: Add a delay after enabling target power Hans de Goede
2014-11-14 15:55 ` Ian Campbell [this message]
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