On Sun, Feb 05, 2012 at 09:53:38PM -0800, Stephen Warren wrote: > On 02/05/2012 08:20 PM, Linus Walleij wrote:
> > A controlled set of register read/writes and maybe also conditionals > > (if that bit is 1, do this, else do that, plus a loop command to wait > > for a flag or similar) are known as a "jam tables" and usually used > > in BIOSes to do a compact machine initialization. I learned this term > > in Bunnie Huang's "Hacking the Xbox, where he describes finding a > > jam table interpreter in the Xbox ROM. FWIW I just added a subset of this functionality (called "patches" for want of a better name) to regmap, just a simple list of register writes that get blasted in htere. The intent is somewhat different, though - it's there for dumping undocumented or partially documented register write sequences from vendors into devices since there's a common pattern of doing that when bringing things out of reset, more like what Grant seems to have been talking about in that thread. _______________________________________________ devicetree-discuss mailing list [email protected] https://lists.ozlabs.org/listinfo/devicetree-discuss
