From: Stephen Warren <swarren@wwwdotorg.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH REPOST] ARM: rpi_b: power on SDHCI and USB HW modules
Date: Thu, 05 Dec 2013 10:50:27 -0700 [thread overview]
Message-ID: <52A0BCE3.3040708@wwwdotorg.org> (raw)
In-Reply-To: <1386129715-5820-1-git-send-email-swarren@wwwdotorg.org>
On 12/03/2013 09:01 PM, Stephen Warren wrote:
> Send RPC commands to the VideoCore to turn on the SDHCI and USB modules.
> For SDHCI this isn't needed in practice, since the firmware already
> turned on the power in order to load U-Boot. However, it's best to be
> explicit. For USB, this is necessary, since the module isn't powered
> otherwise. This will allow the kernel USB driver to work.
BTW, I should mention that I'd particularly like to get this patch into
2014.01, since Linux kernel 3.14 will rely on the USB controller being
powered, since kernel USB support is now enabled in linux-next.
next prev parent reply other threads:[~2013-12-05 17:50 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-04 4:01 [U-Boot] [PATCH REPOST] ARM: rpi_b: power on SDHCI and USB HW modules Stephen Warren
2013-12-05 17:50 ` Stephen Warren [this message]
2013-12-06 13:37 ` Andre Heider
2013-12-06 19:19 ` Stephen Warren
2013-12-07 4:50 ` Stephen Warren
2013-12-09 19:52 ` Andre Heider
2013-12-09 20:16 ` Stephen Warren
2013-12-09 20:35 ` Andre Heider
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