Hi Magnus, On Wed, Apr 23, 2008 at 6:35 AM, Magnus Lilja <[EMAIL PROTECTED]> wrote: > Hi Jens, > > On Wed, Apr 23, 2008 at 8:37 AM, Jens Gehrlein <[EMAIL PROTECTED]> wrote: > > >> in the source code there is a preprocessor directive > > >> #error "SMC911X: Only 32-bit bus is supported". > > >> > > >> We use a LAN9215i, which has a 16 Bit data interface only, connected > to > > >> an i.MX31. > > >> > > >> The LAN9215 is in the driver's ID list. > > >> > > >> According to the data sheet accesses have to be 2x16 Bit to build the > > >> device's internal 32 Bit format. > > >> > > >> What does this non-32-Bit exclusion exactly mean? > > >> Will the driver work on our HW configuration? > > >> > > > This #error message was included, because if you look at the code > > > you'll see that the read/write accessors are 32-bit operations *(u32 * > > > ). These may or may not work on your configuration. It should be > > > trivial to write accessors for a 16-bit bus, but nobody had hardware > > > to try it out on. Please do so and submit a patch. > > > > Yes, it seems, that we just need two additional functions which split a > > 32 Bit access into two 16 Bit accesses. That should be easy. I'm going > > to create a patch as soon as I get the HW. But first I want to test > > whether the processor splits itself automatically. > > Well, the i.MX31 Litekit board has a 16-bit LAN9117 and that seems to > work with the 32-bit flag set in the config file. > That's good news. I would prefer, though, to break this into two 16-bit accesses so we don't need to wonder what architectures it would work on. Would you be able to try something out, since you have hardware?
regards, Ben ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ U-Boot-Users mailing list U-Boot-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users
