On Tue, Apr 11, 2017 at 9:31 AM, Richard Leitner <richard.leitner@xxxxxxxxxxx> wrote: > Some eMMCs disable their hardware reset line (RST_N) by default. To enable > it the host must set the corresponding bit in ECSD. An example for such > a device is the Micron MTFCxGACAANA-4M. > > This patch adds a new mmc-card devicetree property to let the host enable > this feature during card initialization. > > Signed-off-by: Richard Leitner <richard.leitner@xxxxxxxxxxx> Do we know *WHY* these cards disable their hardware reset lines? If it is just some random over-cautious panic thing we might consider just force re-enableing it, maybe with a warning in the dmesg, so we can always reset the card. No DT property needed. Putting some people who work for eMMC vendors in the To: line so they can say if they know about this. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
