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

Tony Lindgren tony at atomide.com
Wed May 14 14:50:35 PDT 2014


* George Cherian <george.cherian at ti.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?

Regards,

Tony



More information about the linux-arm-kernel mailing list