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The mx6sl supports standard sdhci tuning, then esdhc_executing_tuning is only needed for mx6q/dl. We introduce is_imx6_usdhc() and is_imx6sl_usdhc() to handle the difference. The standard tuning is enabled by setting ESDHC_TUNE_CTRL_STD_TUNING_EN bit in new register ESDHC_TUNE_CTRL and operates with new tuning bits defined in SDHCI_ACMD12_ERR register. Note: mx6sl can also work on the old manually tuning mode as mx6q/dl if not enable standard tuning mode. Signed-off-by: Dong Aisheng <b29396@freescale.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org> |
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