Tegra 4 device address mapping


I have HP Slate 8 Pro Business tablet. It uses Tegra 4 soc and has 1 GB LPDDR3 memory. I read the technique manual of Tegra 4, it is said Tegra 4 has two memory channel and the memory accesses are interleaved between these two channel. Each channel has only one 512MB memory device.

I want to know the details about the memory address mapping order.
The mapping should be <bank, row, channel, col> or <row, bank, channel, col> or anything else?