ddr: marvell: only assert M_ODT[0] on write for a single CS
When using only a single DDR chip select only assert M_ODT[0] on write. Do not assert it on read and do not assert M_ODT[1] at all. Also set tODT_OFF_WR to 0x9 which contradicts the recommendation from the functional spec but is what Marvell's binary training blob does and seems to give better results when ODT is active during writes. Signed-off-by: NChris Packham <judge.packham@gmail.com> Signed-off-by: NStefan Roese <sr@denx.de>
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