Have a great day,
All public documentations for LS1 devices you can find starting from the ARM based SOCs page on Freescale site:
http://www.freescale.com/products/arm-processors/qoriq-arm-processors:QORIQ-ARM
For example on this page click on LS1021A and in the opened pop-up menu click on Product Overview or Documentation. If document you are looking for is not available you can ask local Freescale representative for it.
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