I hope to know how register setting in "sdhci-esdhc-imx.c" if SDR104 card is inserted about delay line auto-tuning.
1. Which value does it set uSDHCx_MIX_CTRL register to enable auto tuning?
2. How set DLY_CELL_SET_XXXX bit in uSDHCx_CLK_TUNE_CTRL_STATUS register?
In Documentation/devicetree/bindings/mmc/mmc.txt, "sd-uhs-sdr104" is commented as following.
- sd-uhs-sdr104: SD UHS SDR104 speed is supported
3. Is it effect for usdhc in i.mx6xxx.dts file?
I look forward to hearing from you.