Hi Nikolay, On Wed, Apr 15, 2015 at 10:24 PM, Nikolay Dimitrov <picmas...@mail.bg> wrote:
> imx6 supports up to 528 MHz DDR3 clock as per datasheet, which makes > 1058 MT/s data rate. Unfortunately such comments (like above) in the > code doesn't help to clarify the differences. Which is a nice way to > say the comments are wrong :). > > Here's what happens - chip specs say that the chip supports 1600 MT/s > (800 MHz DDR3 clock). The imx6 ddr code looks up in the switch/case and > calculates timings for 800 MHz, while in reality the imx6 MMDC > officially supports up to 528 MHz. What should happen - mem_speed > should be clamped to imx6 model-specific speed limit, so the MMDC code > can calculate valid timings. Care to submit a patch with your proposal? This should be independent of this hummingboard support patch. Thanks, Fabio Estevam _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
