Quoting Marek Vasut (2015-01-21 15:39:01) > On Wednesday, January 21, 2015 at 05:16:03 PM, Zhi Li wrote: > > On Sun, Dec 28, 2014 at 4:26 AM, Stefan Wahren <stefan.wah...@i2se.com> > > wrote: > > > According to i.MX23 and i.MX28 reference manual the fractional > > > clock control registers must be addressed by byte instructions. > > > > I don't think mx23 and mx28 have such limitation. I will double check > > with IC team about this. > > RTL is generated from a xml file. All registers implement is unified. > > I don't think only clock control register have such limitation and > > other registers not. > > Hi, > > Section 10.8.24 in the MX28 datasheet (Fractional Clock Control Register 0) > states otherwise, but maybe the documentation is simply not matching the > silicon. > > Here's a quote: > " > This register controls the 9-phase fractional clock dividers. The fractional > clock frequencies are a product of the values in these registers. NOTE: This > register can only be addressed by byte instructions. Addressing word or half- > word are not allowed. > " > > I also recall seeing weird behavior when these registers were accessed by word > access in U-Boot, so I believe the datasheet is correct.
Hi Frank, Are you satisfied with this patch? Regards, Mike > > Best regards, > Marek Vasut -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
