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From: John Stile <john@stilen.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] no mtdparted from U-Boot> prompt
Date: Fri, 21 Dec 2012 16:00:46 -0800	[thread overview]
Message-ID: <1356134446.28896.137.camel@genx> (raw)
In-Reply-To: <20121221231341.39F5F201213@gemini.denx.de>

On Sat, 2012-12-22 at 00:13 +0100, Wolfgang Denk wrote:
> Dear John Stile,
> 
> In message <1356130404.28896.135.camel@genx> you wrote:
> >
> > > I had the impression there was also an interactive command-line tool for
> > > mtdparts, from the u-boot prompt.
> > 
> > This post give me the impression that there should be a uboot mtdparts
> > command in addtion to the kernel option.
> > http://stackoverflow.com/questions/8585864/nand-partitioning-in-u-boot
> 
> Yes, there is.
> 
> For example:
> 
> => mtdparts -?
> mtdparts - define flash/nand partitions
> 
> Usage:
> mtdparts 
>     - list partition table
> mtdparts delall
>     - delete all partitions
> mtdparts del part-id
>     - delete partition (e.g. part-id = nand0,1)
> mtdparts add <mtd-dev> <size>[@<offset>] [<name>] [ro]
>     - add partition
> mtdparts default
>     - reset partition table to defaults
> 
> -----
> 
> this command uses three environment variables:
> 
> 'partition' - keeps current partition identifier
> 
> partition  := <part-id>
> <part-id>  := <dev-id>,part_num
> 
> 'mtdids' - linux kernel mtd device id <-> u-boot device id mapping
> 
> mtdids=<idmap>[,<idmap>,...]
> 
> <idmap>    := <dev-id>=<mtd-id>
> <dev-id>   := 'nand'|'nor'|'onenand'<dev-num>
> <dev-num>  := mtd device number, 0...
> <mtd-id>   := unique device tag used by linux kernel to find mtd device (mtd->name)
> 
> 'mtdparts' - partition list
> 
> mtdparts=mtdparts=<mtd-def>[;<mtd-def>...]
> 
> <mtd-def>  := <mtd-id>:<part-def>[,<part-def>...]
> <mtd-id>   := unique device tag used by linux kernel to find mtd device (mtd->name)
> <part-def> := <size>[@<offset>][<name>][<ro-flag>]
> <size>     := standard linux memsize OR '-' to denote all remaining space
> <offset>   := partition start offset within the device
> <name>     := '(' NAME ')'
> <ro-flag>  := when set to 'ro' makes partition read-only (not used, passed to kernel)
> 
> 
> 
> => mtdparts   
> 
> device nor0 <fc000000.flash>, # parts = 7
>  #: name                size            offset          mask_flags
>  0: firmware            0x00100000      0x00000000      0
>  1: dtb                 0x00040000      0x00100000      0
>  2: kernel              0x00240000      0x00140000      0
>  3: small-fs            0x00280000      0x00380000      0
>  4: initrd              0x00200000      0x00600000      0
>  5: misc                0x00800000      0x00800000      0
>  6: big-fs              0x01000000      0x01000000      0
> 
> active partition: nor0,0 - (firmware) 0x00100000 @ 0x00000000
> 
> defaults:
> mtdids  : nor0=fc000000.flash
> mtdparts: mtdparts=fc000000.flash:1m(firmware),256k(dtb),2304k(kernel),2560k(small-fs),2m(initrd),8m(misc),16m(big-fs)
> => 
> 
> 
> > > Now it contains:
> > > #define CONFIG_JFFS2_NAND 1
> > > #define CONFIG_JFFS2_CMDLINE 1
> > > #define CONFIG_CMD_JFFS2
> > > #define CONFIG_CMD_MTDPARTS"
> 
> If this is an exact copy, then please remove this '"'
> 

It actually reads this:
#define CONFIG_JFFS2_NAND 1
#define CONFIG_JFFS2_CMDLINE 1
#define CONFIG_CMD_JFFS2 1 // Required to include cmd_jffs2.c
#define CONFIG_CMD_MTDPARTS 1 // Required for mtdparts command in uboot

But the command is not available on my system.
Would it help to post my .h or maybe my build log?

  reply	other threads:[~2012-12-22  0:00 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-12-20 23:53 [U-Boot] no mtdparted from U-Boot> prompt johns at msli.com
2012-12-21  9:59 ` Bo Shen
2012-12-21 18:29   ` johns at msli.com
2012-12-21 22:53     ` John Stile
2012-12-21 23:13       ` Wolfgang Denk
2012-12-22  0:00         ` John Stile [this message]
2012-12-22  8:04           ` Anatolij Gustschin

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