Subject: Re: [PATCH v4 1/4] Documentation: dt-bindings: Describe SROMc
 configuration
To: Pavel Fedin <p.fedin@samsung.com>, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org
References: <cover.1446122247.git.p.fedin@samsung.com>
 <f1fbd1a7877090f4318705f0fccbf4d96c0ebc9c.1446122247.git.p.fedin@samsung.com>
 <56330E6E.50003@samsung.com> <00d401d112ff$c426e9a0$4c74bce0$@samsung.com>
 <5635D1EE.5010604@samsung.com> <012101d11540$8c280be0$a47823a0$@samsung.com>
 <5637FCCB.1060007@samsung.com> <004d01d11604$fc7a2a80$f56e7f80$@samsung.com>
Cc: k.kozlowski.k@gmail.com, "'Mark Rutland'" <mark.rutland@arm.com>,
        "'Pawel Moll'" <pawel.moll@arm.com>,
        "'Ian Campbell'" <ijc+devicetree@hellion.org.uk>,
        "'Rob Herring'" <robh+dt@kernel.org>,
        "'Kukjin Kim'" <kgene@kernel.org>,
        "'Kumar Gala'" <galak@codeaurora.org>
From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Message-id: <56385FCC.1090007@samsung.com>
Date: Tue, 03 Nov 2015 16:18:36 +0900
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On 03.11.2015 15:58, Pavel Fedin wrote:
>  Hello!
> 
>>>>> --- cut exynos5410.dtsi ---
>>>>> 		sromc: sromc@12250000 {
>>>>> 			#address-cells = <2>;
>>>>> 			#size-cells = <1>;
>>>>> 			ranges = <0 0 0x04000000 0x20000
>>>>> 				  1 0 0x05000000 0x20000
>>>>> 				  2 0 0x06000000 0x20000
>>>>> 				  3 0 0x07000000 0x20000>;
>>>>
>>>> Do you have to use 2 cells for address? Cannot it be:
>>>>  			ranges = <0 0x04000000 0x20000
>>>>  				  1 0x05000000 0x20000
>>>>  				  2 0x06000000 0x20000
>>>>  				  3 0x07000000 0x20000>;
>>>
>>>  I tried this first, but it didn't work, and ranges translation
>>> gave me something really weird (like addr = 0x80 and
>>> size = 0x04000004).
>>
>> Did you change the address-cells to <1>?
> 
>  Of course i did.

I saw some other nodes use the ranges without the offset but maybe some
more steps are required for such configuration.

So anyway send the version with the child offset and I will try to
figure out why it is required.

Best regards,
Krzysztof

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