Re: [PATCH 2/2] mmc: add no-1-8-v device tree flag

2012-12-03 Thread Chris Ball
Hi, On Sun, Nov 25 2012, Daniel Drake wrote: > The OLPC XO-1.75 laptop includes a SDHCI controller which is 1.8v > capable, and it truthfully reports so in its capabilities. This > alternate voltage is used for driving new "UHS-I" SD cards at their > full speed. > > However, what the controller do

[PATCH 2/2] mmc: add no-1-8-v device tree flag

2012-11-25 Thread Daniel Drake
The OLPC XO-1.75 laptop includes a SDHCI controller which is 1.8v capable, and it truthfully reports so in its capabilities. This alternate voltage is used for driving new "UHS-I" SD cards at their full speed. However, what the controller doesn't know is that the motherboard physically doesn't hav