Re: [PATCH] ARM: dts: Add support for the BeagleBoard xM A/B

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On Tue, Apr 15, 2014 at 10:35 AM, Nishanth Menon <nm@xxxxxx> wrote:
> On 04/15/2014 10:12 AM, Robert Nelson wrote:
>> On Tue, Apr 15, 2014 at 10:09 AM, Robert Nelson <robertcnelson@xxxxxxxxx> wrote:
>>> BeagleBoard xM A/B has an inverted usb hub enable line vs the xM C
>>>
>>> Signed-off-by: Robert Nelson <robertcnelson@xxxxxxxxx>
>>> ---
>>>  arch/arm/boot/dts/Makefile               |  1 +
>>>  arch/arm/boot/dts/omap3-beagle-xm-ab.dts | 15 +++++++++++++++
>>>  2 files changed, 16 insertions(+)
>>>  create mode 100644 arch/arm/boot/dts/omap3-beagle-xm-ab.dts
>>>
>>> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
>>> index 35c146f..0bdeba3 100644
>>> --- a/arch/arm/boot/dts/Makefile
>>> +++ b/arch/arm/boot/dts/Makefile
>>> @@ -246,6 +246,7 @@ dtb-$(CONFIG_ARCH_OMAP2PLUS) += omap2420-h4.dtb \
>>>         omap3-sbc-t3730.dtb \
>>>         omap3-devkit8000.dtb \
>>>         omap3-beagle-xm.dtb \
>>> +       omap3-beagle-xm-ab.dtb \
>>>         omap3-evm.dtb \
>>>         omap3-evm-37xx.dtb \
>>>         omap3-ldp.dtb \
>>> diff --git a/arch/arm/boot/dts/omap3-beagle-xm-ab.dts b/arch/arm/boot/dts/omap3-beagle-xm-ab.dts
>>> new file mode 100644
>>> index 0000000..9d81123
>>> --- /dev/null
>>> +++ b/arch/arm/boot/dts/omap3-beagle-xm-ab.dts
>>> @@ -0,0 +1,15 @@
>>> +/*
>>> + * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
>>> + *
>>> + * This program is free software; you can redistribute it and/or modify
>>> + * it under the terms of the GNU General Public License version 2 as
>>> + * published by the Free Software Foundation.
>>> + */
>>> +
>>> +#include "omap3-beagle-xm.dts"
>>> +
>>> +/ {
>>> +       /* HS USB Port 2 Power enable was inverted with the xM C */
>>> +       hsusb2_power: hsusb2_power_reg {
>>> +               enable-active-high;
>>        };
>>> +};
>>
>> Crap, copy paste bug, there.  I can send a v2, if you guys are happy
>> with the "omap3-beagle-xm-ab.dtb" naming..
>>
>> Regards,
>>
> Will u-boot adequately handle this as part of find_fdt?

It will after i submit something like: (this uses a new feature in v2014.04)

https://github.com/eewiki/u-boot-patches/blob/master/v2014.04/0001-am335x_evm-uEnv.txt-bootz-n-fixes.patch#L76

Essentially, test for presence of omap3-beagle-xm-ab.dtb, if not found
drop to old omap3-beagle-xm.dtb

Background: i also tried getting this having this fixed in u-boot:

>
> --
> Regards,
> Nishanth Menon



-- 
Robert Nelson
http://www.rcn-ee.com/
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