diff options
| author | Pali Rohár <[email protected]> | 2022-05-11 20:27:12 +0200 |
|---|---|---|
| committer | Peng Fan <[email protected]> | 2022-06-20 15:52:44 +0800 |
| commit | a29eb319a3f8ccfb657053b2941581fa1933974e (patch) | |
| tree | 82c0861bafce388a301025920616b1245dc697ef /scripts | |
| parent | d49480637681c0939f7d86b41318e3cc45795036 (diff) | |
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, so it is the best option for fallback mode.
Also P2020 bootrom sets mode to 1-bit when booting from SD/MMC card.
Signed-off-by: Pali Rohár <[email protected]>
Reviewed-by: Jaehoon Chung <[email protected]>
Diffstat (limited to 'scripts')
0 files changed, 0 insertions, 0 deletions