Messages in this thread | | | Date | Mon, 16 Dec 2013 11:06:51 +0800 | From | Huang Shijie <> | Subject | Re: [PATCH] mtd: increase max page/OOB size to support 16K pagesize NAND |
| |
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
| |