Re: OMAP H4 Boot from MMC Card

["Marek Vašut" <marek.vasut@gmail.com>]

hi,
try od -x -N512 /dev/mmc0 where mmc0 is your mmc card ... if you see "aa55" at 
the end, then it´s probably not prob with reading mmc. You can also compare 
the output with pc (issue something like od -x -N512 /dev/sda on pc). If it 
matches on both, then the prob is somewhere else for sure.

Dne středa 01 listopad 2006 11:44 Felipe Balbi napsal(a):
> ext Hingkwan Huen wrote:
> > Hello Khasim,
> >
> > Many thanks for the help! I've tried your mentioned bootargs, and copied
> > all files and subdirectories from the existing NFS target to the MMC
> > card. However, it failed to mount root on /dev/mmc0 that I created with
> > mknod, and eventually crashed. Do you know what could be wrong here?
> > BTW, I was using kernel 2.6.16. I had a typo on my original email.
> >
> > Any suggestions are greatly appreciated!
> >
> > Thanks and regards,
> > kwan
> >
> > P.S. Below is the boot log file...
> >
> > OMAP242x H4 # printenv
> > bootdelay=3
> > baudrate=115200
> > bootfile="uImage.cc"
> > ethaddr=08:00:28:01:12:7E
> > stdin=serial
> > stdout=serial
> > stderr=serial
> > bootargs=mem=64M console=ttyS0,115200n8 noinitrd root=/dev/mmc0 rw
> > ip=off devfs=mount
> > filesize=1677e1
> > fileaddr=82000000
> > netmask=255.255.0.0
> > ipaddr=172.16.150.186
> > serverip=172.16.142.59
> >
> > Environment size: 301/131068 bytes
> > OMAP242x H4 # bootm 82000000
> > ## Booting image at 82000000 ...
> >    Image Name:   Linux Kernel
> >    Image Type:   ARM Linux Kernel Image (gzip compressed)
> >    Data Size:    1472417 Bytes =  1.4 MB
> >    Load Address: 80008000
> >    Entry Point:  80008000
> >    Verifying Checksum ... OK
> >    Uncompressing Kernel Image ... OK
> >
> > Starting kernel ...
> >
> > Linux version 2.6.16-omap2 (hkh@localhost.localdomain) (gcc version
> > 3.4.5) #5 Tue Oct 31 15:40:41 PST 2006
> > CPU: Some Random V6 Processor [4107b362] revision 2 (ARMv6TEJ)
> > Machine: OMAP2420 H4 board
> > Memory policy: ECC disabled, Data cache writeback
> > OMAP24205
> > SRAM: Mapped pa 0x40200000 to va 0xd0000000 size: 0xa0000
> > CPU0: D VIPT write-back cache
> > CPU0: I cache: 32768 bytes, associativity 4, 32 byte lines, 256 sets
> > CPU0: D cache: 32768 bytes, associativity 4, 32 byte lines, 256 sets
> > Built 1 zonelists
> > Kernel command line: mem=64M console=ttyS0,115200n8 noinitrd
> > root=/dev/mmc0 rw ip=off devfs=mount
> > Clocking rate (Crystal/DPLL/MPU): 12.0/532/266 MHz
> > clock.c: Enable for dpll_ck without enable code
> > IRQ: Found an INTC at 0x480fe000 (revision 2.0) with 96 interrupts
> > Total of 96 interrupts on 1 active controller
> > OMAP24xx GPIO hardware version 1.8
> > Muxing M15_24XX_GPIO92 (0x4800010a): 0x03 -> 0x03
> > PID hash table entries: 512 (order: 9, 8192 bytes)
> > OMAP2 GP timer (HW version 1.3)
> > Console: colour dummy device 80x30
> > Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
> > Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
> > Memory: 64MB = 64MB total
> > Memory: 61696KB available (2512K code, 526K data, 112K init)
> > Mount-cache hash table entries: 512
> > CPU: Testing write buffer coherency: ok
> > NET: Registered protocol family 16
> > Muxing K15_24XX_UART3_TX (0x48000118): 0x00 -> 0x00
> > Muxing K14_24XX_UART3_RX (0x48000119): 0x00 -> 0x00
> > Muxing M19_24XX_I2C1_SCL (0x48000111): 0x00 -> 0x00
> > Muxing L15_24XX_I2C1_SDA (0x48000112): 0x00 -> 0x00
> > Muxing T19_24XX_KBR0 (0x48000106): 0x0f -> 0x1b
> > Muxing R19_24XX_KBR1 (0x48000107): 0x0f -> 0x1b
> > Muxing V18_24XX_KBR2 (0x48000139): 0x07 -> 0x1b
> > Muxing M21_24XX_KBR3 (0x480000c9): 0x0f -> 0x1b
> > Muxing E5__24XX_KBR4 (0x48000138): 0x0f -> 0x1b
> > Muxing B3__24XX_KBR5 (0x48000030): 0x03 -> 0x1b
> > Muxing AA4_24XX_KBC2 (0x480000e7): 0x03 -> 0x03
> > Muxing B13_24XX_KBC6 (0x48000110): 0x03 -> 0x03
> > Muxing R20_24XX_KBC0 (0x48000108): 0x0f -> 0x03
> > Muxing M14_24XX_KBC1 (0x48000109): 0x1f -> 0x03
> > Muxing V17_24XX_KBC3 (0x48000135): 0x07 -> 0x03
> > Muxing P21_24XX_KBC4 (0x480000ca): 0x0f -> 0x03
> > Muxing L14_24XX_KBC5 (0x4800010f): 0x0f -> 0x03
> > OMAP DMA hardware revision 2.0
> > Initializing OMAP McBSP system
> > Muxing Y15_24XX_MCBSP2_CLKX (0x48000124): 0x0f -> 0x09
> > Muxing R14_24XX_MCBSP2_FSX (0x48000125): 0x0f -> 0x09
> > Muxing W15_24XX_MCBSP2_DR (0x48000126): 0x0f -> 0x09
> > Muxing V15_24XX_MCBSP2_DX (0x48000127): 0x0f -> 0x09
> > Muxing V14_24XX_GPIO117 (0x48000128): 0x0f -> 0x0b
> > Muxing W14_24XX_SYS_CLKOUT (0x48000137): 0x0f -> 0x18
> > omapdsp: unsupported omap architecture.
> > USB: No board-specific platform config found
> > i2c_omap i2c_omap.1: bus 0 rev3.4 at 100 kHz
> > OMAP24xx McSPI driver initializing
> > NET: Registered protocol family 23
> > NetWinder Floating Point Emulator V0.97 (double precision)
> > VFS: Disk quotas dquot_6.5.1
> > Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
> > NTFS driver 2.1.26 [Flags: R/W].
> > JFFS2 version 2.2. (NAND) (C) 2001-2003 Red Hat, Inc.
> > Initializing Cryptographic API
> > io scheduler noop registered
> > io scheduler anticipatory registered (default)
> > io scheduler deadline registered
> > io scheduler cfq registered
> > omapfb: configured for panel h4
> > omapfb-dispc: version 2.0
> > Console: switching to colour frame buffer device 30x40
> > omapfb: initialized vram=159744 pixclock 5541 kHz hfreq 16.9 kHz vfreq
> > 51.9 Hz
> > OMAP Watchdog Timer: initial timeout 60 sec
> > Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
> > serial8250.0: ttyS0 at MMIO 0x4806a000 (irq = 72) is a ST16654
> > serial8250.0: ttyS1 at MMIO 0x4806c000 (irq = 73) is a ST16654
> > serial8250.0: ttyS2 at MMIO 0x4806e000 (irq = 74) is a ST16654
> > RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize
> > loop: loaded (max 8 devices)
> > smc91x.c: v1.1, sep 22 2004 by Nicolas Pitre <nico@cam.org>
> > eth0: SMC91C94 (rev 9) at c4851300 IRQ 252 [nowait]
> > eth0: Ethernet addr: 08:00:28:01:12:7e
> > OMAP IrDA driver initializing
> > Muxing W19_24XX_SYS_NIRQ (0x4800012c): 0x00 -> 0x18
> > Menelaus rev 2.1
> > omapflash.0: Found 1 x16 devices at 0x0 in 16-bit bank
> > omapflash.0: Found 1 x16 devices at 0x2000000 in 16-bit bank
> >  Intel/Sharp Extended Query Table at 0x010A
> >  Intel/Sharp Extended Query Table at 0x010A
> >  Intel/Sharp Extended Query Table at 0x010A
> >  Intel/Sharp Extended Query Table at 0x010A
> >  Intel/Sharp Extended Query Table at 0x010A
> >  Intel/Sharp Extended Query Table at 0x010A
> > Using buffer write method
> > cfi_cmdset_0001: Erase suspend on write enabled
> > Creating 4 MTD partitions on "omapflash.0":
> > 0x00000000-0x00020000 : "bootloader"
> > 0x00020000-0x00040000 : "params"
> > 0x00040000-0x00240000 : "kernel"
> > 0x00240000-0x04000000 : "filesystem"
> > TI TSC2102 driver initializing
> > ts: Compaq touchscreen protocol output
> > OMAP Keypad Driver
> > input: omap-keypad as /class/input/input0
> > NET: Registered protocol family 2
> > MMC1: Command timeout, CMD0
> > MMC1: Command timeout, CMD0
> > IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
> > TCP established hash table entries: 4096 (order: 2, 16384 bytes)
> > TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
> > TCP: Hash tables configured (established 4096 bind 4096)
> > TCP reno registered
> > TCP bic registered
> > NET: Registered protocol family 1
> > NET: Registered protocol family 17
> > NET: Registered protocol family 15
> > IrCOMM protocol (Dag Brattli)
> > MMC1: Command timeout, CMD0
> > MMC1: Command timeout, CMD0
> > mmcblk0: mmc0:0001 MP     498944KiB
> >  mmcblk0: unknown partition table
> > XXX card in slot 1
> > Root-NFS: No NFS server available, giving up.
> > VFS: Unable to mount root fs via NFS, trying floppy.
> > VFS: No root yet, retrying to mount root on mmc0 (unknown-block(2,0))
> > VFS: No root yet, retrying to mount root on mmc0 (unknown-block(2,0))
> > VFS: No root yet, retrying to mount root on mmc0 (unknown-block(2,0))
> > VFS: No root yet, retrying to mount root on mmc0 (unknown-block(2,0))
> > VFS: No root yet, retrying to mount root on mmc0 (unknown-block(2,0))
> > VFS: No root yet, retrying to mount root on mmc0 (unknown-block(2,0))
> > VFS: Cannot open root device "mmc0" or unknown-block(2,0)
> > Please append a correct "root=" boot option
> > Kernel panic - not syncing: VFS: Unable to mount root fs on
> > unknown-block(2,0)
> >
> > On Tue, 2006-10-31 at 19:30 -0600, Syed Mohammed, Khasim wrote:
> >> Hi,
> >>
> >> Format the MMC card to EXT2 FS.
> >> Copy your existing NFS target file system MMC partition.
> >> (You can do this on any standard Linux PC with card reader or use the
> >> board itself)
> >>
> >> Modify the bootargs to
> >> setenv bootargs console=ttyS0,115200n8 noinitrd root=/dev/mmcblk0p1 rw
> >> ip=off devfs=mount
> >>
> >> Note: You might have to change the /dev/mmcblk0p1 to what ever you are
> >> getting for MMC dev on your board.
> >>
> >> Regards,
> >> Khasim
> >> -----Original Message-----
> >> From: linux-omap-open-source-bounces+x0khasim=ti.com@linux.omap.com
> >> [mailto:linux-omap-open-source-bounces+x0khasim=ti.com@linux.omap.com]
> >> On Behalf Of Hingkwan Huen
> >> Sent: Tuesday, October 31, 2006 6:57 PM
> >> To: linux-omap-open-source@linux.omap.com
> >> Subject: OMAP H4 Boot from MMC Card
> >>
> >> Dear All,
> >>
> >> I am currently running 2.6.17 and OPIE on the OMAP2420 H4 with rootfs
> >> via NFS. In order to make the whole setup more portable and not
> >> depending on the network, I would like to have the rootfs on the MMC
> >> card. Could anyone help provide an instruction how to set this up,
> >> please?
> >>
> >> Thanks,
> >> kwan
> >>
> >> _______________________________________________
> >> Linux-omap-open-source mailing list
> >> Linux-omap-open-source@linux.omap.com
> >> http://linux.omap.com/mailman/listinfo/linux-omap-open-source
> >
> > _______________________________________________
> > Linux-omap-open-source mailing list
> > Linux-omap-open-source@linux.omap.com
> > http://linux.omap.com/mailman/listinfo/linux-omap-open-source
>
> Hello Hingkwan Huen,
>
> As you can see here:
>
> MMC1: Command timeout, CMD0
> MMC1: Command timeout, CMD0
> mmcblk0: mmc0:0001 MP     498944KiB
>  mmcblk0: unknown partition table
> XXX card in slot 1
>
> Your board is using /dev/mmcblk0 for the mmc slot... Try setting you
> bootargs bootargs=mem=64M console=ttyS0,115200n8 noinitrd root=/dev/mmcblk0
> rw instead of using /dev/mmc0 you created with mknod...
>
> I think this'll do!