From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from main.gmane.org ([80.91.229.2] helo=ciao.gmane.org) by bombadil.infradead.org with esmtps (Exim 4.68 #1 (Red Hat Linux)) id 1JN9P2-0001kr-Vy for linux-mtd@lists.infradead.org; Thu, 07 Feb 2008 16:15:17 +0000 Received: from root by ciao.gmane.org with local (Exim 4.43) id 1JN9Ow-0002KZ-Pp for linux-mtd@lists.infradead.org; Thu, 07 Feb 2008 16:15:02 +0000 Received: from 82-135-208-232.ip.zebra.lt ([82.135.208.232]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 07 Feb 2008 16:15:02 +0000 Received: from augulis.darius by 82-135-208-232.ip.zebra.lt with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 07 Feb 2008 16:15:02 +0000 To: linux-mtd@lists.infradead.org From: Darius Subject: Problem: Can't mount jffs2 filesystem Date: Thu, 07 Feb 2008 18:08:40 +0200 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-13; format=flowed Content-Transfer-Encoding: 8bit Sender: news List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi All, I have ARM920T board with two 128M 16bit NOR FLASH devices configured as one 256M 32bit device. I want to mount my root filesystem (jffs2) at boot time. There is boot log of my 2.6.24 vanilla kernel: [ 0.000000] Linux version 2.6.24 (Darius@localhost.localdomain) (gcc version 4.0.2) #19 Thu Feb 7 16:55:32 EET 2008 [ 0.000000] CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=00003177 [ 0.000000] Machine: Motorola MX1ADS [ 0.000000] Memory policy: ECC disabled, Data cache writeback [ 0.000000] On node 0 totalpages: 16384 [ 0.000000] DMA zone: 128 pages used for memmap [ 0.000000] DMA zone: 0 pages reserved [ 0.000000] DMA zone: 16256 pages, LIFO batch:3 [ 0.000000] Normal zone: 0 pages used for memmap [ 0.000000] Movable zone: 0 pages used for memmap [ 0.000000] CPU0: D VIVT write-back cache [ 0.000000] CPU0: I cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets [ 0.000000] CPU0: D cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 16256 [ 0.000000] Kernel command line: mtdparts=physmap-flash.0:128k,2M(kernel),-(rootfs) root=/dev/mtdblock2 rootfstype=jffs2 ro debug ignore_loglevel [ 0.000000] debug: ignoring loglevel setting. [ 0.000000] PID hash table entries: 256 (order: 8, 1024 bytes) [ 0.000000] console [ttySMX0] enabled [ 0.010000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes) [ 0.010000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes) [ 0.030000] Memory: 64MB = 64MB total [ 0.030000] Memory: 63536KB available (1164K code, 103K data, 76K init) [ 0.040000] Calibrating delay loop... 47.92 BogoMIPS (lpj=239616) [ 0.230000] Mount-cache hash table entries: 512 [ 0.230000] CPU: Testing write buffer coherency: ok [ 0.270000] Time: imx_timer1 clocksource has been installed. [ 0.280000] VFS: Disk quotas dquot_6.5.1 [ 0.290000] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) [ 0.300000] JFFS2 version 2.2. (NAND) © 2001-2006 Red Hat, Inc. [ 0.300000] Allocated 270656 bytes for deflate workspace [ 0.310000] Allocated 42284 bytes for inflate workspace [ 0.310000] Registering JFFS2 compressor "zlib" [ 0.320000] Compressor "zlib", prio 60 [ 0.320000] Registering JFFS2 compressor "rtime" [ 0.330000] Compressor "zlib", prio 60 [ 0.330000] Compressor "rtime", prio 50 [ 0.340000] JFFS2: default compression mode: priority [ 0.340000] fuse init (API version 7.9) [ 0.350000] io scheduler noop registered [ 0.350000] io scheduler anticipatory registered [ 0.360000] io scheduler deadline registered [ 0.360000] io scheduler cfq registered (default) [ 0.370000] Serial: IMX driver [ 0.370000] imx-uart.0: ttySMX0 at MMIO 0xe0006000 (irq = 30) is a IMX [ 0.380000] imx-uart.1: ttySMX1 at MMIO 0xe0007000 (irq = 24) is a IMX [ 0.410000] RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize [ 0.420000] physmap platform flash device: 02000000 at 10000000 [ 0.430000] physmap-flash.0: Found 2 x16 devices at 0x0 in 32-bit bank [ 0.440000] Amd/Fujitsu Extended Query Table at 0x0040 [ 0.440000] physmap-flash.0: CFI does not contain boot bank location. Assuming top. [ 0.450000] number of CFI chips: 1 [ 0.450000] cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness. [ 0.460000] 3 cmdlinepart partitions found on MTD device physmap-flash.0 [ 0.470000] Creating 3 MTD partitions on "physmap-flash.0": [ 0.470000] 0x00000000-0x00020000 : "Partition_000" [ 0.480000] mtd: Giving out device 0 to Partition_000 [ 0.480000] 0x00020000-0x00220000 : "kernel" [ 0.490000] mtd: Giving out device 1 to kernel [ 0.490000] 0x00220000-0x02000000 : "rootfs" [ 0.500000] mtd: Giving out device 2 to rootfs [ 0.500000] block2mtd: version $Revision: 1.30 $ [ 0.510000] MTDSB: dev_name "/dev/root" [ 0.510000] MTDSB: path_lookup() returned 0, inode c3c69554 [ 0.520000] List of all partitions: [ 0.520000] No filesystem could mount root, tried: jffs2 [ 0.530000] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) Why VFS can't open mtdblock2? I have enabled such settings like block layer, all pseudo filesystems, jffs2 filesystem. All things are built in kernel, nothing as module. I need hint how to access my root filesystem. Below is MTD driver config: # # Generic Driver Options # CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_STANDALONE=y # CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_FW_LOADER is not set # CONFIG_DEBUG_DRIVER is not set # CONFIG_DEBUG_DEVRES is not set # CONFIG_SYS_HYPERVISOR is not set CONFIG_MTD=y CONFIG_MTD_DEBUG=y CONFIG_MTD_DEBUG_VERBOSE=3 CONFIG_MTD_CONCAT=y CONFIG_MTD_PARTITIONS=y # CONFIG_MTD_REDBOOT_PARTS is not set CONFIG_MTD_CMDLINE_PARTS=y # CONFIG_MTD_AFS_PARTS is not set # # User Modules And Translation Layers # # CONFIG_MTD_CHAR is not set # CONFIG_MTD_BLKDEVS is not set # CONFIG_MTD_BLOCK is not set # CONFIG_MTD_BLOCK_RO is not set # CONFIG_FTL is not set # CONFIG_NFTL is not set # CONFIG_INFTL is not set # CONFIG_RFD_FTL is not set # CONFIG_SSFDC is not set # CONFIG_MTD_OOPS is not set # # RAM/ROM/Flash chip drivers # CONFIG_MTD_CFI=y CONFIG_MTD_JEDECPROBE=y CONFIG_MTD_GEN_PROBE=y # CONFIG_MTD_CFI_ADV_OPTIONS is not set CONFIG_MTD_MAP_BANK_WIDTH_1=y CONFIG_MTD_MAP_BANK_WIDTH_2=y CONFIG_MTD_MAP_BANK_WIDTH_4=y # CONFIG_MTD_MAP_BANK_WIDTH_8 is not set # CONFIG_MTD_MAP_BANK_WIDTH_16 is not set # CONFIG_MTD_MAP_BANK_WIDTH_32 is not set CONFIG_MTD_CFI_I1=y CONFIG_MTD_CFI_I2=y # CONFIG_MTD_CFI_I4 is not set # CONFIG_MTD_CFI_I8 is not set CONFIG_MTD_CFI_INTELEXT=y CONFIG_MTD_CFI_AMDSTD=y CONFIG_MTD_CFI_STAA=y CONFIG_MTD_CFI_UTIL=y # CONFIG_MTD_RAM is not set # CONFIG_MTD_ROM is not set # CONFIG_MTD_ABSENT is not set # CONFIG_MTD_XIP is not set # # Mapping drivers for chip access # CONFIG_MTD_COMPLEX_MAPPINGS=y CONFIG_MTD_PHYSMAP=y CONFIG_MTD_PHYSMAP_START=0x10000000 CONFIG_MTD_PHYSMAP_LEN=0x2000000 CONFIG_MTD_PHYSMAP_BANKWIDTH=4 # CONFIG_MTD_ARM_INTEGRATOR is not set # CONFIG_MTD_IMPA7 is not set # CONFIG_MTD_PLATRAM is not set # # Self-contained MTD device drivers # # CONFIG_MTD_SLRAM is not set # CONFIG_MTD_PHRAM is not set # CONFIG_MTD_MTDRAM is not set CONFIG_MTD_BLOCK2MTD=y # # Disk-On-Chip Device Drivers # # CONFIG_MTD_DOC2000 is not set # CONFIG_MTD_DOC2001 is not set # CONFIG_MTD_DOC2001PLUS is not set # CONFIG_MTD_NAND is not set # CONFIG_MTD_ONENAND is not set # # UBI - Unsorted block images # CONFIG_MTD_UBI=y CONFIG_MTD_UBI_WL_THRESHOLD=4096 CONFIG_MTD_UBI_BEB_RESERVE=1 CONFIG_MTD_UBI_GLUEBI=y # # UBI debugging options # CONFIG_MTD_UBI_DEBUG=y CONFIG_MTD_UBI_DEBUG_MSG=y # CONFIG_MTD_UBI_DEBUG_PARANOID is not set # CONFIG_MTD_UBI_DEBUG_DISABLE_BGT is not set # CONFIG_MTD_UBI_DEBUG_USERSPACE_IO is not set # CONFIG_MTD_UBI_DEBUG_EMULATE_BITFLIPS is not set # CONFIG_MTD_UBI_DEBUG_EMULATE_WRITE_FAILURES is not set # CONFIG_MTD_UBI_DEBUG_EMULATE_ERASE_FAILURES is not set # # Additional UBI debugging messages # CONFIG_MTD_UBI_DEBUG_MSG_BLD=y CONFIG_MTD_UBI_DEBUG_MSG_EBA=y CONFIG_MTD_UBI_DEBUG_MSG_WL=y CONFIG_MTD_UBI_DEBUG_MSG_IO=y # CONFIG_PARPORT is not set # CONFIG_PNP is not set CONFIG_BLK_DEV=y # CONFIG_BLK_DEV_COW_COMMON is not set # CONFIG_BLK_DEV_LOOP is not set CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_COUNT=16 CONFIG_BLK_DEV_RAM_SIZE=4096 CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 # CONFIG_CDROM_PKTCDVD is not set # CONFIG_MISC_DEVICES is not set All info about MTD and jffs2 is very welcome! Darius.