Re: [PATCH 1/2] mmc: fsl_esdhc: Set fallback mode to 1-bit

On 5/12/22 03:27, Pali Rohár wrote: > 8-bit mode is not supported by SD cards and on P2020 are four SDHC pins > shared with SPI (so if P2020 board have also SPI then only 4-bit SDHC mode > is provided). So 8-bit SDHC mode is really bad default. > > When max bus width is not provided then set mode

[PATCH 1/2] mmc: fsl_esdhc: Set fallback mode to 1-bit

8-bit mode is not supported by SD cards and on P2020 are four SDHC pins shared with SPI (so if P2020 board have also SPI then only 4-bit SDHC mode is provided). So 8-bit SDHC mode is really bad default. When max bus width is not provided then set mode to 1-bit. This mode is supported by all cards,