linux-kernel - Re: [PATCH 1/2] ARM: dts: Add support for phyCORE-AM335x SoM

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Date:	Tue, 28 Jul 2015 11:29:33 +0300
From:	Igor Grinberg <grinberg@...pulab.co.il>
To:	Matt Porter <mporter@...sulko.com>,
	Teresa Remmet <t.remmet@...tec.de>
Cc:	linux-omap@...r.kernel.org, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Mark Rutland <mark.rutland@....com>,
	Pawel Moll <pawel.moll@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Tony Lindgren <tony@...mide.com>,
	Rob Herring <robh+dt@...nel.org>,
	Benoît Cousson <bcousson@...libre.com>,
	Kumar Gala <galak@...eaurora.org>
Subject: Re: [PATCH 1/2] ARM: dts: Add support for phyCORE-AM335x SoM

Hi Matt,

On 07/27/15 17:34, Matt Porter wrote:
> On Thu, Jul 16, 2015 at 10:30:48AM +0200, Teresa Remmet wrote:
>> phyCORE-AM335x is a SoM (System on Module) containing
>> a AM335x SOC. The module can be connected to different
>> carrier boards.
>>
>> Some hardware parts are configurable on the phyCORE-AM335x.
>> So they are disabled on default in this som dtsi file.
>> They will be enabled in the board dts files, when populated.
>>
>> * RAM up to 1GiB
>> * PMIC
>> * NAND flash up to 1GiB
>> * Eth PHY on SOM: 1x RMII
>> * SPI NOR flash 8MiB (optional)
>> * i2c RTC (optional)
>> * i2c EEPROM 4kiB (optional)
>>
>> Signed-off-by: Teresa Remmet <t.remmet@...tec.de>
>> ---
>>  arch/arm/boot/dts/am335x-phycore-som.dtsi | 368 ++++++++++++++++++++++++++++++
>>  1 file changed, 368 insertions(+)
>>  create mode 100644 arch/arm/boot/dts/am335x-phycore-som.dtsi
>>
>> diff --git a/arch/arm/boot/dts/am335x-phycore-som.dtsi b/arch/arm/boot/dts/am335x-phycore-som.dtsi
>> new file mode 100644
>> index 0000000..4d28fc3
>> --- /dev/null
>> +++ b/arch/arm/boot/dts/am335x-phycore-som.dtsi

[...]

>> +#include "am33xx.dtsi"
>> +
>> +/ {
>> +	model = "Phytec AM335x phyCORE";
>> +	compatible = "phytec,am335x-phycore-som", "ti,am33xx";
> 
> One minor thing here...wildcards in compatible strings aren't permitted.
> However, family compatibles like "ti,am33xx" that came in before this
> was enforced are grandfathered. Ideally, the newly introced board/som
> specific strings should not propagate that wildcard. i.e. something
> like "phytec,am3352-phycore-som" or whatever is the base family part
> on these SOMs.
> 

I'm not sure this is wild card.
I tend to think that it is the real name of the som [1], no?

http://phytec.com/products/system-on-modules/phycore/am335x/

[...]

-- 
Regards,
Igor.
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