linux-kernel - Re: [PATCH v2 4/6] ARM: dts: omap5: add dwc3 omap dt data

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Message-ID: <5110C6EC.6050606@ti.com>
Date:	Tue, 5 Feb 2013 14:16:36 +0530
From:	kishon <kishon@...com>
To:	<balbi@...com>
CC:	Sergei Shtylyov <sshtylyov@...sta.com>, <b-cousson@...com>,
	<tony@...mide.com>, <linux@....linux.org.uk>, <s-guiriec@...com>,
	<gg@...mlogic.co.uk>, <linux-omap@...r.kernel.org>,
	<devicetree-discuss@...ts.ozlabs.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 4/6] ARM: dts: omap5: add dwc3 omap dt data

Hi,

On Tuesday 05 February 2013 02:08 PM, Felipe Balbi wrote:
> On Tue, Feb 05, 2013 at 01:59:26PM +0530, kishon wrote:
>> On Sunday 27 January 2013 01:17 AM, Sergei Shtylyov wrote:
>>> Hello.
>>>
>>> On 25-01-2013 15:11, Kishon Vijay Abraham I wrote:
>>>
>>>> Add dwc3 omap glue data to the omap5 dt data file. The information about
>>>> the dt node added here is available @
>>>> Documentation/devicetree/bindings/usb/omap-usb.txt
>>>
>>>> Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
>>>> ---
>>>>   arch/arm/boot/dts/omap5.dtsi |   11 +++++++++++
>>>>   1 file changed, 11 insertions(+)
>>>
>>>> diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi
>>>> index 5f59bf2..1703a72 100644
>>>> --- a/arch/arm/boot/dts/omap5.dtsi
>>>> +++ b/arch/arm/boot/dts/omap5.dtsi
>>>> @@ -513,6 +513,17 @@
>>>>               ti,type = <2>;
>>>>           };
>>>>
>>>> +        omap_dwc3@...20000 {
>>>> +            compatible = "ti,dwc3";
>>>> +            ti,hwmods = "usb_otg_ss";
>>>> +            reg = <0x4a020000 0x1ff>;
>>>
>>>     Shoudn't the "reg" length be 0x200 here? It's length, not limit.
>>
>> I think 0x1ff is correct. I got the data from hwmod data.
>
> hwmod is utterly wrong. Looking at TRM, it says the size here is 64KiB
> (0x10000), so is the size for dwc3 itself. Please don't blindly trust
> hwmod, make sure you read data from TRM ;-)

hmm..ok. But it has only 17 registers :-D

Thanks
Kishon
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