Hai, The OOB layout of the (u-boot)/drivers/nand/nand_imx.c and (kernel)/drivers/mtd/nand/mxc_nand.c are same. I think the problem should be in the nand_bbt driver, since we run the command *nand -a /dev/nand0.* *after the *addpart *command. The command *nand -a /dev/nand0.* *seems to be hanging .
u-boot/drivers/nand/nand-imx.c ------------------------------ /* * OOB placement block for use with hardware ecc generation */ static struct nand_ecclayout nand_hw_eccoob_8 = { .eccbytes = 5, .eccpos = {6, 7, 8, 9, 10}, .oobfree = {{0, 5}, {11, 5}} }; static struct nand_ecclayout nand_hw_eccoob_16 = { .eccbytes = 5, .eccpos = {6, 7, 8, 9, 10}, .oobfree = {{0, 6}, {12, 4}} }; kernel/drivers/mtd/nand/mxc_nd.c -------------------------------- /* * OOB placement block for use with hardware ecc generation */ static struct nand_ecclayout nand_hw_eccoob_8 = { .eccbytes = 5, .eccpos = {6, 7, 8, 9, 10}, .oobfree = {{0, 5}, {11, 5}} }; static struct nand_ecclayout nand_hw_eccoob_16 = { .eccbytes = 5, .eccpos = {6, 7, 8, 9, 10}, .oobfree = {{0, 6}, {12, 4}} }; Arun On Wed, Oct 14, 2009 at 5:42 PM, Juergen Beisert <j...@pengutronix.de> wrote: > Arun, > > On Mittwoch, 14. Oktober 2009, R Arun Kumar wrote: > > Yes the NAND flash is working fine in linux and i am able to load the > > filesystem and boot etc. > > Since our NOR flash is of small size 2MB and the linux kernel needs to be > > programmed in NAND, I am trying to use the NAND in uboot for saving the > > kernel and boot the linux kernel from NAND flash > > Seems Linux is using a different OOB layout than u-boot does. Compare the > OOB > layout definition in (u-boot)/drivers/nand/nand_imx.c and > (kernel)/drivers/mtd/nand/mxc_nand.c > > Regards, > jbe > > -- > Pengutronix e.K. | Juergen Beisert > | > Linux Solutions for Science and Industry | Phone: +49-8766-939 228 > | > Vertretung Sued/Muenchen, Germany | Fax: +49-5121-206917-5555 > | > Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de/ | > -- R Arun Kumar +=================================================================+ http://www.paiarunk.net Happy GoAround Way !!!!!!!!!!!!!!!!! "Talk is cheap, Show me the code - LINUS TORVALDS" +=================================================================+
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