linux-kernel - Re: [RFC PATCH] ARM: dts: am33xx: Re-arrange the USB dt to reflect the h/w configuration

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Message-ID: <537459E4.5060203@ti.com>
Date:	Thu, 15 May 2014 11:38:36 +0530
From:	George Cherian <george.cherian@...com>
To:	Tony Lindgren <tony@...mide.com>
CC:	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-omap@...r.kernel.org>, <linux@....linux.org.uk>,
	<galak@...eaurora.org>, <ijc+devicetree@...lion.org.uk>,
	<mark.rutland@....com>, <pawel.moll@....com>, <robh+dt@...nel.org>,
	<bcousson@...libre.com>, <ezequiel@...guardiasur.com.ar>,
	<bigeasy@...utronix.de>, <yegorslists@...glemail.com>,
	<balbi@...com>
Subject: Re: [RFC PATCH] ARM: dts: am33xx: Re-arrange the USB dt to reflect
 the h/w configuration

Hi Tony,
On 5/15/2014 3:20 AM, Tony Lindgren wrote:
> * George Cherian <george.cherian@...com> [140508 23:34]:
>> Re arrange the USB dt for AM33xx to take it a bit closer
>> to the hardware configuration.
>>
>> The USBSS is designed as follows
>>
>> USB control Module	0x44e10_0620
>>
>> USBSS			0x4740_0000
>>
>> USB0			0x4740_1000
>> USB0_PHY		0x4740_1300
>> USB0_CORE		0x4740_1400
>>
>> USB1			0x4740_1800
>> USB1_PHY		0x4740_1b00
>> USB1_CORE		0x4740_1c00
>>
>> CPPI DMA Controller	0x4740_2000
>> CPPI DMA Scheduler	0x4740_3000
>> Queue Manager		0x4740_4000
>>
>> So model the DT as follows
>> USBSS {
>>      usb_ctrl_mod: {
>>          0x44e10_0620
>>      }
>>      usb0: {
>>      0x4740_1000
>>      0x4740_1400
>>      }
>>      usb0_phy:{
>>      0x4740_1300
>>      }
>>      usb1:{
>>      0x4740_1800
>>      0x4740_1c00
>>      }
>>      usb1_phy: {
>>      0x4740_1b00
>>      }
>>      cppi41dma: {
>>      0x4740_2000
>>      0x4740_3000
>>      0x4740_4000
>>      }
>> }
> Is this just a cosmetic change or is this trying to workaround
> some edma related init order issue?
Please ignore this patch. Was trying to workaround some dma and phy 
related issues.
The same got fixed with following

http://www.spinics.net/lists/linux-usb/msg107244.html


>
> Regards,
>
> Tony


-- 
-George

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