Messages in this thread | | | Date | Mon, 25 Nov 2013 07:11:48 -0300 | From | Ezequiel Garcia <> | Subject | Re: [PATCH] Make the mtdblock read/write skip the bad nand sector |
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On Mon, Nov 25, 2013 at 09:29:11AM +0800, Hans Zhang wrote: > On 2013/11/22 19:45, Ezequiel Garcia wrote: > >> Thanks for your reply. > >> This is for my embed system upgrade, I reserved one nand partition for filesystem > >> environment which will load to DDR while uboot booting. > >> This filesystem.uboot file should be able to read both by uboot and kernel, and > >> maybe written by uboot and kernel. There will be no filesystems upon the nand in > >> case the loader may not support some filesystem types while uboot booting. > >> > >> Seems that the trimmed environment of OS has get rid of the mtd-tools, So the dd > >> command was the most convenience tools to use by hand. > >> > > I still don't understand why are you using mtdblock. Why can't you write > > through the char device? > > Well, yes, write through the char device would be a solution.
But, *why* are you writing through mtdblock instead?
> I think that maybe it's an optional approach through mtdblock in case we do not have > the mtd-tools in our environments, we do provider a simpler way to write the NAND > through mtdblock. >
Uh? simpler? Writing through mtdchat is as simple as it gets:
$ cat some_file.img > /dev/mtd0
Sorry, but I'm still confused at what are you trying to accomplish. -- Ezequiel García, Free Electrons Embedded Linux, Kernel and Android Engineering http://free-electrons.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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