linux-kernel - RE: [PATCH] ARM: dts: Add am57xx-beagle-x15

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Date:	Thu, 6 Nov 2014 10:51:04 -0600
From:	"Gerald Coley" <gerald@...nddesignsgroup.com>
To:	"'Tony Lindgren'" <tony@...mide.com>,
	"'Nishanth Menon'" <nm@...com>
Cc:	"'Tom Rini'" <trini@...com>, <balbi@...com>,
	<devicetree@...r.kernel.org>, <beagleboard@...glegroups.com>,
	<linux-kernel@...r.kernel.org>, <fcooper@...com>,
	<linux-omap@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>
Subject: RE: [PATCH] ARM: dts: Add am57xx-beagle-x15

Convert 12V to 5V and 3.3V. 5V supplies are too expensive at the required
wattage level.

Gerald


-----Original Message-----
From: Tony Lindgren [mailto:tony@...mide.com] 
Sent: Thursday, November 6, 2014 10:49 AM
To: Nishanth Menon
Cc: Tom Rini; balbi@...com; devicetree@...r.kernel.org;
beagleboard@...glegroups.com; linux-kernel@...r.kernel.org;
gerald@...nddesignsgroup.com; fcooper@...com; linux-omap@...r.kernel.org;
linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] ARM: dts: Add am57xx-beagle-x15

* Nishanth Menon <nm@...com> [141106 08:44]:
> On 11/06/2014 10:37 AM, Tom Rini wrote:
> 
> >>> device_type = "memory"; +		reg = <0x80000000 0x40000000>; /*
1GB
> >>> to start. Target 2GB */
> >>
> >> 1GiB ? Why would you put this here btw ? u-boot fills this one up.
> > 
> > Yes, it should either be the full and correct value or 0x0 (like a 
> > number of PowerPC platforms do) so it's clear something else gives 
> > us the right value here.
> 
> Honest mistake, my bad.. I thought I cleaned up the patch! Sigh!!! i 
> will repost with proper 2GB. it is better that way in case being used 
> with "other bootloaders" which are not exactly too good like u-boot.

Can you also describe why all the always-on regulators are needed?

Regards,

Tony

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