linux-kernel - Re: [PATCH] arm: dts: AM43x: Add usb_otg

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Date:	Mon, 8 Jul 2013 10:50:35 +0530
From:	George Cherian <george.cherian@...com>
To:	<balbi@...com>
CC:	<linux-arm-kernel@...ts.infradead.org>,
	<linux-omap@...r.kernel.org>, <linux@....linux.org.uk>,
	<benoit.cousson@...aro.org>, <a-kishore@...com>, <afzal@...com>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] arm: dts: AM43x: Add usb_otg_hs node

On 7/7/2013 2:05 PM, Felipe Balbi wrote:
> Hi,
>
> On Fri, Jun 28, 2013 at 12:14:47PM +0530, George Cherian wrote:
>> diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
>> index ddc1df7..e4f5eb8 100644
>> --- a/arch/arm/boot/dts/am4372.dtsi
>> +++ b/arch/arm/boot/dts/am4372.dtsi
>> @@ -64,5 +64,24 @@
>>   			compatible = "ti,am4372-counter32k","ti,omap-counter32k";
>>   			reg = <0x44e86000 0x40>;
>>   		};
>> +
>> +		usb_otg_hs1: am4372_dwc3@...80000 {
>> +			compatible = "ti,am437x-dwc3";
>> +			reg = <0x48380000 0x1ff>;
>> +			interrupts = <GIC_SPI 172 IRQ_TYPE_LEVEL_HIGH>;
>> +			#address-cells = <1>;
>> +			#size-cells = <1>;
>> +			utmi-mode = <1>;
>> +			ranges;
>> +
>> +			dwc3@...90000 {
>> +				compatible = "synopsys,dwc3";
> let's us snps,dwc3. I recently posted a patch converting synopsys to
> snps like all other DesignWare drivers. Support for synopsys,dwc3 is
> still there, but shouldn't be used.
okay
>
>> +				reg = <0x48390000 0xcfff>;
>> +				interrupts = <GIC_SPI  168 IRQ_TYPE_LEVEL_HIGH>;
>> +				tx-fifo-resize;
> is this flag *really* necessary, I asked you and didn't get an answer.
We will not be needing this flag , since each EP has 3K tx fifo size. 
Also given the fact that we will be operating only
in 2.0 mode the default values are only sufficient.
I will re-send the patch with above changes.

Regards,
-George

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