mirror of https://gitee.com/openkylin/linux.git
9fc2cd7612
MMC tuning procedure is required to support SD card UHS1-SDR104 mode and EMMC HS200 mode. SDR104/HS200 DLL Tuning Procedure for AM572x platform is mentioned in Figure 25-51. SDR104/HS200 DLL Tuning Procedure of AM572x Sitara Processors Silicon Revision 2.0, 1.1 TRM (SPRUHZ6I - October 2014–Revised April 2017 [1]). The tuning function sdhci_omap_execute_tuning() will only be called by the MMC/SD core if the corresponding speed modes are supported by the OMAP silicon which is set in the mmc host "caps" field. [1] -> http://www.ti.com/lit/ug/spruhz6i/spruhz6i.pdf Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> |
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