[PATCH v3] Axi-usb: Add support for 64-bit addressing.
arnd at arndb.de
Mon May 30 01:16:43 PDT 2016
On Monday, May 30, 2016 5:46:21 AM CEST Nava kishore Manne wrote:
> The Axi-usb 5.00 IP is a FPGA based one. This IP needs to support two H/w designs one with 32 bit DMA addressing another one is 64 bit DMA addressing.
> And also in the software point for view we don’t have any register to figure out whether it is supporting 32 bit DMA addressing or 64 bit DMA addressing.
> To support both the designs I kept addrwidth property in the dt. I think here addrwidth property is make sense to differentiate the h/w configurations.
> If you want me to changes it to boolean please let me know I will fix it in the next version.
I think boolean would be more logical here, since what is configurable
here is not how many bits are supported, but whether the XUSB_DMA_DSAR_ADDR
register is present or not.
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