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Peng Fan authored
Support tuning for HS200 and SDR104. Now only 8QM/QXP are supported. Some code is imported/modified from kernel sdhci-esdhc-imx.c. On i.MX8QM LPDDR4 ARM2 board, emmc hs200: Read speed: ~87MB/s Write speed: ~67MB/s Original data, emmc hs: Read speed: ~43MB/s Write speed: ~40.5MB/s On i.MX8QM LPDDR4 ARM2 board, SDR104: Read speed: ~44MB/s Write speed: ~9.4MB/s Original data, SD HS: Read speed: ~22MB/s Write speed: ~8.5MB/s Signed-off-by: Peng Fan <peng.fan@nxp.com>
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