Kinda off-topic:Any thoughts on ISP1761 btw? I was having half a platform-unspecific pcd-driver working for it.
To add OTG to the ISP1761-driver in-kernel would be a good GSoC 2010. ;) //Markus On 9 Oct 2009, at 17:39, David Daney wrote:
Stefan Roese wrote:On Thursday 08 October 2009 23:03:37 David Daney wrote:If you look at '[PATCH 2/2] USB: Add HCD for Octeon SOC', you will see that it has the hcd support. I have omitted pcd support from this set,Yes, this Synopsys USB-OTG core is also integrated in some AMCC (Applied Micro) PowerPC's (e.g. PPC405EX and PPC460EX). So we should try to make this driver usable by those platforms as well. But this could be done in a later step.as I am working towards getting hcd mergable first.As for endian issues, the current Octeon support in the kernel is for big-endian only, so since the usb hardware is on the same chip as the CPU, endian safety is not currently an issue. I have heard rumors that some ralink and PPC variants have the same controller, but I have no wayof confirming this or even testing the code as I don't have that hardware.I can only refer you to '[PATCH 2/2] USB: Add HCD for Octeon SOC' (unfortunately eaten by linux-usb but available in the linux- mips archives), The target specific code is all in dwc_otg_octeon.c. The rest should be target independent. My expectation is that, much as the ohci and ehci drivers have target specific code spilt out, we would do the same with dwc_otg.David, on which Synopsys driver version did you base your driver? The latest version available is 2.90a IIRC.It has this annotation: "2.40a 10-APR-2006" We have made local bug fixes though.Cheers, Stefan --DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, GermanyPhone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: office@xxxxxxx
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