Mitch, In the dma-ranges proposal:
http://playground.sun.com/1275/proposals/Closed/Accepted/410-it.txt ...there is the following special case described: As a special case, a "dma-ranges" property may be present in the root node of the device tree. In this case, the property value describes the ranges of DMA addresses that the system bus can accept. In this case, the length of the parent-address portion of each entry in the property value is 0 (because the root node has no parent), so the format reduces to... A few of us in the ePAPR committee were discussing this and were wondering what the use case for a dma-ranges on the root is. Is this special case really needed? Thanks, Stuart Yoder _______________________________________________ devicetree-discuss mailing list [email protected] https://lists.ozlabs.org/listinfo/devicetree-discuss
