On Mon, Dec 16, 2013 at 02:03:54AM +0000, Caizhiyong wrote: > > > > > > There are a lot of 16K page size NAND, they are used in android system. > > > > > > Many NAND need read retry and data randomization, kernel does not support > > > this > > feature. > > Brian is adding the read-retry feature. > > > > I think the data randomization should be done by the hardware. > > If we do it by software, it costs lot of the cpu cycles. > > > > > > > Kernel also does not support synchronous NAND. > > > > The synchronous NAND should be supported by the nand controller driver, > > not the kernel. > > Yes. Those feature should be support by NAND controller hardware and driver. > But the driver does not know what NAND should use those feature. > Perhaps, the NAND id table, should add something. We can get the synchronous info from the ONFI nand.
In actually, if you do not add this patch, i will change it too. I have several 16K nand chips on my hands now. :) thanks Huang Shijie -- 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/