topic Re: Porting from MPC8248 to LS1020A in Layerscape

Porting from MPC8248 to LS1020A

victormazin — Mon, 26 Oct 2015 19:27:19 GMT

Our task is to port the Linux operation system and set of servers and drivers (written in C language) from Freescale MPC8248 processor to Freescale LS1020A processor.

Which first steps could you recommend to us?

Regards

Victor

Re: Porting from MPC8248 to LS1020A

alexander_yakov — Wed, 28 Oct 2015 02:05:48 GMT

We do not offer porting guide for this case.

I recommend building a new Linux from our Linux SDK we offer for LS1020A processor, and than port your applications from MPC8248 to LS1020A using build tools supplied in our Linux SDK.

Have a great day,
Alexander

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Re: Porting from MPC8248 to LS1020A

lunminliang — Wed, 28 Oct 2015 03:50:25 GMT

Hello Victor Mazin,

If you are using new platform other than LS1021ATWR, as Alexander has suggested, you're recommend to porting from Freescale QorIQ SDK, since it has already included support for LS1021A.

Some steps of porting u-boot including creating configuration file based on ls1021atwr.h, ls1021atwr.c, ddr.c, ls1_rcw.cfg, ls1_pbi.cfg and rebuilding images, porting Linux including creating new file based on mach-ls1021a.c, ls1021a_defconfig, new device tree, and so on. There is application note of U-Boot and Linux porting on T4240 system, although it's not for LS1021A I think it may be also helpful.

http://cache.freescale.com/files/32bit/doc/app_note/AN4814.pdf?fsrch=1&sr=1&pageNum=1

Have a great day,
Lunmin

Re: Porting from MPC8248 to LS1020A

victormazin — Wed, 28 Oct 2015 19:59:28 GMT

Thank you Lunmin and Alexander,

We will try to following your recommendations

Regards

Victor.