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am335x evm mount UBIFS filesystem failed.

Other Parts Discussed in Thread: TPS65910, DA8XX, TMP275

Hi,

I use ti-sdk-am335x-evm-05.05.00.00 source code for AM335x evm board, and then I can load SPL, U-boot, uImage and ubi.img to nand flash. I can boot from nand flash, but it was fialed when mount UBIFS filesystem via nand, the log is as below:

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

U-Boot SPL 2011.09 (Nov 28 2012 - 14:44:40)
Texas Instruments Revision detection unimplemented
Found a daughter card connected


U-Boot 2011.09 (Nov 28 2012 - 14:44:40)

I2C:   ready
DRAM:  256 MiB
WARNING: Caches not enabled
Found a daughter card connected
NAND:  HW ECC Hamming Code selected
256 MiB
MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1
*** Warning - bad CRC, using default environment

Net:   cpsw
Hit any key to stop autoboot:  0
Card did not respond to voltage select!
Booting from nand ...
HW ECC BCH8 Selected

NAND read: device 0 offset 0x280000, size 0x500000
 5242880 bytes read: OK
## Booting kernel from Legacy Image at 80007fc0 ...
   Image Name:   Linux-3.2.0
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    3163552 Bytes = 3 MiB
   Load Address: 80008000
   Entry Point:  80008000
   Verifying Checksum ... OK
   XIP Kernel Image ... OK
OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
[    0.000000] Linux version 3.2.0 (darencehuang@ubuntu) (gcc version 4.5.3 20110311 (prerelease) (GCC) ) #1 Wed Nov 28 14:49:18 CST 2012
[    0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c53c7d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] Machine: am335xevm
[    0.000000] Memory policy: ECC disabled, Data cache writeback
[    0.000000] AM335X ES1.0 (sgx neon )
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 65024
[    0.000000] Kernel command line: console=ttyO0,115200n8 root=ubi0:rootfs rw ubi.mtd=7,2048 noinitrd rootfstype=ubifs rootwait=1 ip=none
[    0.000000] PID hash table entries: 1024 (order: 0, 4096 bytes)
[    0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
[    0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
[    0.000000] Memory: 256MB = 256MB total
[    0.000000] Memory: 253256k/253256k available, 8888k reserved, 0K highmem
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
[    0.000000]     vmalloc : 0xd0800000 - 0xff000000   ( 744 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xd0000000   ( 256 MB)
[    0.000000]     modules : 0xbf000000 - 0xc0000000   (  16 MB)
[    0.000000]       .text : 0xc0008000 - 0xc059d000   (5716 kB)
[    0.000000]       .init : 0xc059d000 - 0xc05db000   ( 248 kB)
[    0.000000]       .data : 0xc05dc000 - 0xc0644198   ( 417 kB)
[    0.000000]        .bss : 0xc06441bc - 0xc0671024   ( 180 kB)
[    0.000000] NR_IRQS:396
[    0.000000] IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts
[    0.000000] Total of 128 interrupts on 1 active controller
[    0.000000] OMAP clockevent source: GPTIMER2 at 24000000 Hz
[    0.000000] OMAP clocksource: GPTIMER1 at 32768 Hz
[    0.000000] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 131071999ms
[    0.000000] Console: colour dummy device 80x30
[    0.000152] Calibrating delay loop... 718.02 BogoMIPS (lpj=3590144)
[    0.058959] pid_max: default: 32768 minimum: 301
[    0.059082] Security Framework initialized
[    0.059173] Mount-cache hash table entries: 512
[    0.059570] CPU: Testing write buffer coherency: ok
[    0.079528] omap_hwmod: pruss: failed to hardreset
[    0.080657] print_constraints: dummy:
[    0.081024] NET: Registered protocol family 16
[    0.083160] OMAP GPIO hardware version 0.1
[    0.085723] omap_mux_init: Add partition: #1: core, flags: 0
[    0.087951]  omap_i2c.1: alias fck already exists
[    0.088806]  omap2_mcspi.1: alias fck already exists
[    0.089080]  omap2_mcspi.2: alias fck already exists
[    0.089843]  edma.0: alias fck already exists
[    0.089843]  edma.0: alias fck already exists
[    0.089874]  edma.0: alias fck already exists
[    0.116577] bio: create slab <bio-0> at 0
[    0.118804] SCSI subsystem initialized
[    0.120513] usbcore: registered new interface driver usbfs
[    0.120819] usbcore: registered new interface driver hub
[    0.121002] usbcore: registered new device driver usb
[    0.121154] musb-ti81xx musb-ti81xx: musb0, board_mode=0x13, plat_mode=0x3
[    0.121459] musb-ti81xx musb-ti81xx: musb1, board_mode=0x13, plat_mode=0x1
[    0.139007] omap_i2c omap_i2c.1: bus 1 rev2.4.0 at 100 kHz
[    0.140899] tps65910 1-002d: JTAGREVNUM 0x0
[    0.143280] print_constraints: VRTC:
[    0.144744] print_constraints: VIO: at 1800 mV
[    0.147064] print_constraints: VDD1: 600 <--> 1500 mV at 1262 mV normal
[    0.149353] print_constraints: VDD2: 600 <--> 1500 mV at 1137 mV normal
[    0.150360] print_constraints: VDD3: 5000 mV
[    0.151763] print_constraints: VDIG1: at 1800 mV
[    0.153198] print_constraints: VDIG2: at 1800 mV
[    0.154632] print_constraints: VPLL: at 1800 mV
[    0.156036] print_constraints: VDAC: at 1800 mV
[    0.157470] print_constraints: VAUX1: at 1800 mV
[    0.158874] print_constraints: VAUX2: at 3300 mV
[    0.160339] print_constraints: VAUX33: at 3300 mV
[    0.161773] print_constraints: VMMC: at 3300 mV
[    0.162261] tps65910 1-002d: No interrupt support, no core IRQ
[    0.163482] Advanced Linux Sound Architecture Driver Version 1.0.24.
[    0.164642] Switching to clocksource gp timer
[    0.180023] musb-hdrc: version 6.0, ?dma?, otg (peripheral+host)
[    0.180206] musb-hdrc musb-hdrc.0: dma type: pio
[    0.180511] MUSB0 controller's USBSS revision = 4ea20800
[    0.181091] musb-hdrc musb-hdrc.0: USB OTG mode controller at d083c000 using PIO, IRQ 18
[    0.181243] musb-hdrc musb-hdrc.1: dma type: pio
[    0.181549] MUSB1 controller's USBSS revision = 4ea20800
[    0.181671] musb-hdrc musb-hdrc.1: MUSB HDRC host driver
[    0.181732] musb-hdrc musb-hdrc.1: new USB bus registered, assigned bus number 1
[    0.181884] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[    0.181884] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.181915] usb usb1: Product: MUSB HDRC host driver
[    0.181915] usb usb1: Manufacturer: Linux 3.2.0 musb-hcd
[    0.181945] usb usb1: SerialNumber: musb-hdrc.1
[    0.182708] hub 1-0:1.0: USB hub found
[    0.182739] hub 1-0:1.0: 1 port detected
[    0.183258] musb-hdrc musb-hdrc.1: USB Host mode controller at d083e800 using PIO, IRQ 19
[    0.183685] NET: Registered protocol family 2
[    0.183868] IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.184173] TCP established hash table entries: 8192 (order: 4, 65536 bytes)
[    0.184326] TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
[    0.184448] TCP: Hash tables configured (established 8192 bind 8192)
[    0.184448] TCP reno registered
[    0.184448] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.184478] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.184722] NET: Registered protocol family 1
[    0.184997] RPC: Registered named UNIX socket transport module.
[    0.185028] RPC: Registered udp transport module.
[    0.185028] RPC: Registered tcp transport module.
[    0.185058] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.185302] NetWinder Floating Point Emulator V0.97 (double precision)
[    0.197418] VFS: Disk quotas dquot_6.5.2
[    0.197509] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[    0.198028] msgmni has been set to 494
[    0.201232] alg: No test for stdrng (krng)
[    0.201934] io scheduler noop registered
[    0.201934] io scheduler deadline registered
[    0.201995] io scheduler cfq registered (default)
[    0.205749] omap_uart.0: ttyO0 at MMIO 0x44e09000 (irq = 72) is a OMAP UART0
[    0.823059] console [ttyO0] enabled
[    0.827301] omap_uart.1: ttyO1 at MMIO 0x48022000 (irq = 73) is a OMAP UART1
[    0.835113] omap_uart.2: ttyO2 at MMIO 0x48024000 (irq = 74) is a OMAP UART2
[    0.842926] omap_uart.3: ttyO3 at MMIO 0x481a6000 (irq = 44) is a OMAP UART3
[    0.850738] omap_uart.4: ttyO4 at MMIO 0x481a8000 (irq = 45) is a OMAP UART4
[    0.858520] omap_uart.5: ttyO5 at MMIO 0x481aa000 (irq = 46) is a OMAP UART5
[    0.875732] brd: module loaded
[    0.883728] loop: module loaded
[    0.887268] i2c-core: driver [tsl2550] using legacy suspend method
[    0.893707] i2c-core: driver [tsl2550] using legacy resume method
[    0.900146] at24 1-0051: 32768 byte 24c256 EEPROM, writable, 64 bytes/write
[    0.914062] Detected a daughter card on AM335x EVM..
[    0.919067] CPLD version: CPLD1.0E
[    0.922821] at24 1-0050: 32768 byte 24c256 EEPROM, writable, 64 bytes/write
[    0.937988] Board name: A33515BB
[    0.941345] Board version: 1.2A
[    0.944641] SKU: SKU#01
[    0.947723] The board is general purpose EVM in profile 0
[    0.953826]  da8xx_lcdc.0: alias fck already exists
[    0.959472] da8xx_lcdc da8xx_lcdc.0: GLCD: Found TFC_S9700RTWV35TR_01B panel
[    0.983093] Console: switching to colour frame buffer device 100x30
[    0.999847] omap-gpmc omap-gpmc: GPMC revision 6.0
[    1.004852] Registering NAND on CS0
[    1.009246]  omap_i2c.2: alias fck already exists
[    1.025299] omap_i2c omap_i2c.2: bus 2 rev2.4.0 at 100 kHz
[    1.031707] tsl2550 2-0039: standard operating mode
[    1.037536] tsl2550 2-0039: support ver. 1.2 enabled
[    1.043334]  davinci-mcasp.1: alias fck already exists
[    1.049316]  omap_hsmmc.0: alias fck already exists
[    1.054748]  omap_hsmmc.2: alias fck already exists
[    1.060180] Configure Bluetooth Enable pin...
[    1.066131] registered am33xx_sr device
[    1.070373] _regulator_get: 2-0018 supply Vdd not found, using dummy regulator
[    1.078033] _regulator_get: 2-0018 supply Vdd_IO not found, using dummy regulator
[    1.106475] lis3lv02d: 8 bits 3DLH sensor found
[    1.195678] input: ST LIS3LV02DL Accelerometer as /devices/platform/lis3lv02d/input/input0
[    1.206604] mtdoops: mtd device (mtddev=name/number) must be supplied
[    1.213897] omap2-nand driver initializing
[    1.218597] NAND device: Manufacturer ID: 0xec, Chip ID: 0xda (Samsung NAND 256MiB 3,3V 8-bit)
[    1.227813] Creating 8 MTD partitions on "omap2-nand.0":
[    1.233367] 0x000000000000-0x000000020000 : "SPL"
[    1.239807] 0x000000020000-0x000000040000 : "SPL.backup1"
[    1.246704] 0x000000040000-0x000000060000 : "SPL.backup2"
[    1.253540] 0x000000060000-0x000000080000 : "SPL.backup3"
[    1.260498] 0x000000080000-0x000000260000 : "U-Boot"
[    1.267669] 0x000000260000-0x000000280000 : "U-Boot Env"
[    1.274475] 0x000000280000-0x000000780000 : "Kernel"
[    1.282989] 0x000000780000-0x000010000000 : "File System"
[    1.393371] OneNAND driver initializing
[    1.398132] UBI: attaching mtd7 to ubi0
[    1.402130] UBI: physical eraseblock size:   131072 bytes (128 KiB)
[    1.408691] UBI: logical eraseblock size:    126976 bytes
[    1.414337] UBI: smallest flash I/O unit:    2048
[    1.419219] UBI: sub-page size:              512
[    1.424041] UBI: VID header offset:          2048 (aligned 2048)
[    1.430297] UBI: data offset:                4096
[    3.479705] UBI: max. sequence number:       2
[    3.498077] UBI warning: print_rsvd_warning: cannot reserve enough PEBs for bad PEB handling, reserved 12, need 19
[    3.510375] UBI: attached mtd7 to ubi0
[    3.514282] UBI: MTD device name:            "File System"
[    3.520050] UBI: MTD device size:            248 MiB
[    3.525207] UBI: number of good PEBs:        1921
[    3.530120] UBI: number of bad PEBs:         67
[    3.534851] UBI: number of corrupted PEBs:   0
[    3.539489] UBI: max. allowed volumes:       128
[    3.544281] UBI: wear-leveling threshold:    4096
[    3.549194] UBI: number of internal volumes: 1
[    3.553833] UBI: number of user volumes:     1
[    3.558471] UBI: available PEBs:             0
[    3.563079] UBI: total number of reserved PEBs: 1921
[    3.568267] UBI: number of PEBs reserved for bad PEB handling: 12
[    3.574615] UBI: max/mean erase counter: 1/0
[    3.579071] UBI: image sequence number:  516738045
[    3.584197] UBI: background thread "ubi_bgt0d" started, PID 600
[    3.591064] CAN device driver interface
[    3.595062] CAN bus driver for Bosch D_CAN controller 1.0
[    3.645324] davinci_mdio davinci_mdio.0: davinci mdio revision 1.6
[    3.651763] davinci_mdio davinci_mdio.0: detected phy mask fffffffc
[    3.659515] davinci_mdio.0: probed
[    3.663085] davinci_mdio davinci_mdio.0: phy[0]: device 0:00, driver unknown
[    3.670471] davinci_mdio davinci_mdio.0: phy[1]: device 0:01, driver unknown
[    3.678161] usbcore: registered new interface driver zd1201
[    3.684143] usbcore: registered new interface driver cdc_ether
[    3.690399] usbcore: registered new interface driver cdc_eem
[    3.696472] usbcore: registered new interface driver dm9601
[    3.702331] cdc_ncm: 04-Aug-2011
[    3.705871] usbcore: registered new interface driver cdc_ncm
[    3.711761] Initializing USB Mass Storage driver...
[    3.717102] usbcore: registered new interface driver usb-storage
[    3.723358] USB Mass Storage support registered.
[    3.728637] mousedev: PS/2 mouse device common for all mice
[    3.735412] input: matrix-keypad as /devices/platform/matrix-keypad/input/input1
[    3.744476] input: ti-tsc-adcc as /devices/platform/omap/tsc/input/input2
[    3.752990] omap_rtc omap_rtc: rtc core: registered omap_rtc as rtc0
[    3.759887] i2c /dev entries driver
[    3.764129] Linux video capture interface: v2.00
[    3.769317] usbcore: registered new interface driver uvcvideo
[    3.775329] USB Video Class driver (1.1.1)
[    3.780517] lm75 2-0048: hwmon0: sensor 'tmp275'
[    3.788208] OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[    3.796783] cpuidle: using governor ladder
[    3.801544] cpuidle: using governor menu
[    3.879486] omap4_aes_mod_init: loading AM33X AES driver
[    3.885162] omap4-aes omap4-aes: AM33X AES hw accel rev: 3.02
[    3.891723] omap4_aes_probe: probe() done
[    3.896148] omap4_sham_mod_init: loading AM33X SHA/MD5 driver
[    3.902252] omap4-sham omap4-sham: AM33X SHA/MD5 hw accel rev: 4.03
[    3.914001] omap4_sham_probe: probe() done
[    3.920745] usbcore: registered new interface driver usbhid
[    3.926605] usbhid: USB HID core driver
[    3.931304] usbcore: registered new interface driver snd-usb-audio
[    3.942169] mmc1: card claims to support voltages below the defined range. These will be ignored.
[    3.952270] _regulator_get: 2-001b supply IOVDD not found, using dummy regulator
[    3.960083] _regulator_get: 2-001b supply DVDD not found, using dummy regulator
[    3.967773] _regulator_get: 2-001b supply AVDD not found, using dummy regulator
[    3.975463] _regulator_get: 2-001b supply DRVDD not found, using dummy regulator
[    3.986114] asoc: tlv320aic3x-hifi <-> davinci-mcasp.1 mapping ok
[    3.993957] ALSA device list:
[    3.997100]   #0: AM335X EVM
[    4.000091] oprofile: hardware counters not available
[    4.005371] oprofile: using timer interrupt.
[    4.009826] nf_conntrack version 0.5.0 (3957 buckets, 15828 max)
[    4.016632] ip_tables: (C) 2000-2006 Netfilter Core Team
[    4.022277] TCP cubic registered
[    4.025695] NET: Registered protocol family 17
[    4.030334] can: controller area network core (rev 20090105 abi 8)
[    4.036895] NET: Registered protocol family 29
[    4.041503] can: raw protocol (rev 20090105)
[    4.045959] can: broadcast manager protocol (rev 20090105 t)
[    4.051910] Registering the dns_resolver key type
[    4.056915] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
[    4.064880] ThumbEE CPU extension supported.
[    4.069427] mux: Failed to setup hwmod io irq -22
[    4.074981] Power Management for AM33XX family
[    4.079864] Trying to load am335x-pm-firmware.bin (60 secs timeout)
[    4.086517] Copied the M3 firmware to UMEM
[    4.091003] smartreflex smartreflex: am33xx_sr_probe: Zero NValue read from EFUSE
[    4.098846] smartreflex: probe of smartreflex failed with error -22
[    4.105957] sr_init: platform driver register failed
[    4.116333] clock: disabling unused clocks to save power
[    4.135345] Detected MACID=0:18:31:e0:9f:7
[    4.140808] cpsw: Detected MACID = 00:18:31:e0:9f:08
[    4.147766] input: gpio-keys as /devices/platform/gpio-keys/input/input3
[    4.155639] omap_rtc omap_rtc: setting system clock to 2000-01-01 00:00:01 UTC (946684801)
[    4.166320] UBIFS error (pid 1): ubifs_read_node: bad node type (0 but expected 6)
[    4.174224] UBIFS error (pid 1): ubifs_read_node: bad node at LEB 0:0, LEB mapping status 1
[    4.183471] List of all partitions:
[    4.187194] 1f00             128 mtdblock0  (driver?)
[    4.192474] 1f01             128 mtdblock1  (driver?)
[    4.197753] 1f02             128 mtdblock2  (driver?)
[    4.203033] 1f03             128 mtdblock3  (driver?)
[    4.208312] 1f04            1920 mtdblock4  (driver?)
[    4.213562] 1f05             128 mtdblock5  (driver?)
[    4.218841] 1f06            5120 mtdblock6  (driver?)
[    4.224121] 1f07          254464 mtdblock7  (driver?)
[    4.229400] No filesystem could mount root, tried:  ubifs
[    4.235046] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[    4.243652] Backtrace:
[    4.246246] [<c0017978>] (dump_backtrace+0x0/0x110) from [<c0422338>] (dump_stack+0x18/0x1c)
[    4.255035]  r6:cf93a006 r5:c05cc1fc r4:c06451c8 r3:c05fe6c8
[    4.260986] [<c0422320>] (dump_stack+0x0/0x1c) from [<c04223a8>] (panic+0x6c/0x1a0)
[    4.268981] [<c042233c>] (panic+0x0/0x1a0) from [<c059dd3c>] (mount_block_root+0x20c/0x228)
[    4.277709]  r3:cf81df4c r2:cf81df78 r1:cf81df78 r0:c04fe660
[    4.283599]  r7:00008000
[    4.286285] [<c059db30>] (mount_block_root+0x0/0x228) from [<c059dfd0>] (prepare_namespace+0xac/0x1d4)
[    4.295989] [<c059df24>] (prepare_namespace+0x0/0x1d4) from [<c059d90c>] (kernel_init+0x124/0x130)
[    4.305328]  r5:c05da440 r4:c05da440
[    4.309082] [<c059d7e8>] (kernel_init+0x0/0x130) from [<c0041390>] (do_exit+0x0/0x67c)
[    4.317352]  r5:c059d7e8 r4:00000000
---------------------------------------------------------------------------------------------------------------------------------------------------------------

When creating UBIFS filesystem, I use the following command to create ubi.img:

mkfs.ubifs -r filesystem/ -F -o ubifs.img -m 2048 -e 126976 -c 1580 -v

ubinize -o ubi.img -m 2048 -p 128KiB -s 512 -O 2048 -v ubinize.cfg

----------------------------------------------------------------------------------------------------------------------------------------------------------------

The ubinize.cfg is as below:

[ubifs]
mode=ubi
image=ubifs.img
vol_id=0
vol_size=192MiB
vol_type=dynamic
vol_name=rootfs
vol_flags=autoresize

--------------------------------------------------------------------------------------------------------------------------------------------------------------

When flashing UBIFS image to nand partition, the sequence is as below: (I switch SYSBOOT to SD card to boot, and flash ubi.img to nand)

mw.b 0x82000000 0xff 0x2f80000

mmc rescan

fatload mmc 0 0x82000000 ubi.img

nandecc hw 2

nand erase 0x780000 0xf880000

nand write 0x82000000 0x780000 0x2f80000

-------------------------------------------------------------------------------------------------------------------------------------------------------------------

I try to reflash nand. But the result is the same when mount filesystem via nand.

Could you tell me what is wrong? Thanks.

Darence

  • Darence,

    Can you try these instructions below?

    1. First you should have your rootfs as a tar ball in your SD card or NFS from where you mount the filesystem.
    2. Boot up the device and the filesystem from NFS or SD card according your preference.
    3. Boot it up and login. Hope you have all the required command binaries like "flash_erase" etc in your filesystem. 
    4. Follow the steps below

    $ flash_erase /dev/mtd4 0 0
    $ ubiattach /dev/ubi_ctrl -m 4
    $ ubimkvol /dev/ubi0 -N rootfs -m

    $ mkdir /mnt/nand
    $ mount -t ubifs ubi0:rootfs /mnt/nand
    $ tar xvf rootfs.tar.gz -C /mnt/nand

    5. Change the bootargs like below for booting from UBIFS. 
    # setenv bootargs 'console=ttyO0,115200n8 mem=160M ubi.mtd=4 rootfstype=ubifs root=ubi0:rootfs rw'

    ==================================================================================

    If you still see any errors, please send the complete logs along with the below mentioned files to renjith.thomas@pathpartnertech.com?

    1. arch/arm/mach-omap2/board-am335x-evm.c or corresponding board file you are using?
    2. arch/arm/mach-omap2/board-flash.c
    3. arch/arm/mach-omap2/gpmc.c
    4. drivers/mtd/nand/nand_base.c
    5. drivers/mtd/nand/omap2.c
  • Hi Renjith,

    Thanks for your help.  I found the problem was caused by permission defined when I create UBIFS, I have resolved the problem, thx.

     

    Darence

  • Hi,

    What did you do exactly to resovle the issue? YOu just say "I found the problem was caused by permission defined when I create UBIFS" ... ?



    Regards

  • Hi,

      What is the -F option in the following commamd.

    mkfs.ubifs -r filesystem/ -F -o ubifs.img -m 2048 -e 126976 -c 1580




    Thanks

  • That is the space fixup parameter. This parameter tells the ubi subsystem to cleanup the mtd device after the first mount. This solves some problems seen in the past with corrupted images. Don't remove it, it's very important!