From mboxrd@z Thu Jan 1 00:00:00 1970 From: baruch@tkos.co.il (Baruch Siach) Date: Mon, 20 Feb 2012 15:51:55 +0200 Subject: [2.6.39.3] [MX25] oops in driver_register for ADC touchscreen support (imx_adc_ts) In-Reply-To: <9741ebebcbc88e7e82a70d619e6c1d51@mail.fqingenieria.es> References: <50e2a71500444a5e1b951e5856d474bf@mail.fqingenieria.es> <20120220094013.GA9921@sapphire.tkos.co.il> <70cdf2c4b729fb7dfa1d641c4609c6f5@mail.fqingenieria.es> <20120220101157.GB9921@sapphire.tkos.co.il> <9741ebebcbc88e7e82a70d619e6c1d51@mail.fqingenieria.es> Message-ID: <20120220135155.GC9921@sapphire.tkos.co.il> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi joancarles, On Mon, Feb 20, 2012 at 02:42:14PM +0100, joancarles wrote: > >>We are also trying a stock 3.3-rc kernel and can't get > >>our i.MX25 to boot ... yet. > > > >This is on-topic here. Can you share more details? > > Right now, the only tree we have to test here is a 3.2.0-rc2, but I > will try a 3.3-rc kernel soon (slow Internet connection and an even > slower computer to cross-compile kernels inhibits us perform work > quicker). In case there is interest, this is the output of where it > hangs. > > I believe it might have something to do with the way of how MTD > works, or doesn't in our case, with regard to 2.6.x kernels. It > can't find a list of partitions. [snip] > Kernel command line: console=ttymxc0,115200 root=/dev/mtdblock2 > rootfstype=jffs2 mtdparts=physmap-flash.0:0x100000(u-boot),0x300000(kernel),0x3C00000(jffs2) > bootcmd=tftpboot 0x81000000 /v2.1.8-rc/uImage [snip] > List of all partitions: > No filesystem could mount root, tried: jffs2 > Kernel panic - not syncing: VFS: Unable to mount root fs on > unknown-block(0,0) > [] (unwind_backtrace+0x0/0xf0) from [] > (panic+0x60/0x198) > [] (panic+0x60/0x198) from [] > (mount_block_root+0x244/0x294) > [] (mount_block_root+0x244/0x294) from [] > (prepare_namespace+0x11c/0x180) > [] (prepare_namespace+0x11c/0x180) from [] > (kernel_init+0xe8/0x11c) > [] (kernel_init+0xe8/0x11c) from [] > (kernel_thread_exit+0x0/0x8) MTD support in your kernel seems to be missing. What kind of flash do you have on your board? NOR? NAND? Please post your kernel .config file. baruch -- http://baruch.siach.name/blog/ ~. .~ Tk Open Systems =}------------------------------------------------ooO--U--Ooo------------{= - baruch at tkos.co.il - tel: +972.2.679.5364, http://www.tkos.co.il -