seems Ti update am335x mmc ip from dm814x http://www.ti.com/lit/ug/sprugz8e/sprugz8e.pdf page 2260
while from http://www.ti.com/lit/ug/spruh73k/spruh73k.pdf page 4104 • Support for SDA 3.0 Part A2 programming model This mean am335x can support sdxc card , maybe just lack of 200M clock and ddr mode 2014-11-24 5:24 GMT+08:00 William Hermans <[email protected]>: > Paul, the only real differences between 3.8.x and say 3.14.x is. . . > > > 1. SGX support. > 2. USB hotplug. > 3. Device tree overlay are used differently - Depending. > > If I forgot something, someone else will speak up I'm sure, but those are > the 3 most important features in my own mind. > > SGX support is still there in 3.8.x, *somewhat* but is frame buffer only > if I am remembering right. > > Hot plugging USB, or even ethernet while the system is up and running will > cause a seg fault or kernel oops. Which just means you need to power down, > make your changes, and power back up. > > Dynamically loading device tree files while the system is up ( no reboots > needed ) can only be done with 3.8.x. Charles S has also made a set of > generic device tree overlays that allow for pin multiplexing on the fly for > both kernel branches though. Although, this is somewhat limited if i > understand correctly. Unloading a device tree file still requires a reboot > though. At least for 3.8.x, unless things have recently changed without my > knowledge. > > Anyway, you can scour the groups for information or even use google to > find out more and possibly accurate information on all the above. > > On Sun, Nov 23, 2014 at 1:57 PM, Paul Giordano <[email protected]> > wrote: > >> Ah. Thanks for letting me know. I thought about trying the debian kernel >> at 3.13, but maybe I'll wait on that. Neat board so far. >> >> On Sunday, November 23, 2014 2:36:22 PM UTC-6, William Hermans wrote: >>> >>> That is the same kernel version I am running. As I recall the patch was >>> applied back somewhere around 3.8.13-bone2x. >>> >>> On Sun, Nov 23, 2014 at 1:26 PM, Paul Giordano <[email protected]> >>> wrote: >>> >>>> 3.8.13-bone47, I just got the board. I'm updating now, we'll check on >>>> the times again. >>>> >>>> >>>> On Sunday, November 23, 2014 2:23:40 PM UTC-6, William Hermans wrote: >>>>> >>>>> >>>>> *Well, it took a while. 1 hour 19 minutes to create, 30 minutes to >>>>>> read.* >>>>>> >>>>>> *(I obviously haven't set up NTP yet! Guess I better do that.)* >>>>> >>>>> >>>>> Is that and older kernel with an older device tree overlay ? Almost >>>>> seems as though the 4bit patch has not been applied to your device tree >>>>> overlay. >>>>> >>>> -- >>>> For more options, visit http://beagleboard.org/discuss >>>> --- >>>> You received this message because you are subscribed to the Google >>>> Groups "BeagleBoard" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to [email protected]. >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> >>> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
