diff options
author | RajithaY <rajithax.yerrumsetty@intel.com> | 2017-04-25 03:31:15 -0700 |
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committer | Rajitha Yerrumchetty <rajithax.yerrumsetty@intel.com> | 2017-05-22 06:48:08 +0000 |
commit | bb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch) | |
tree | ca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/roms/u-boot/doc/README.ubi | |
parent | a14b48d18a9ed03ec191cf16b162206998a895ce (diff) |
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/roms/u-boot/doc/README.ubi')
-rw-r--r-- | qemu/roms/u-boot/doc/README.ubi | 225 |
1 files changed, 0 insertions, 225 deletions
diff --git a/qemu/roms/u-boot/doc/README.ubi b/qemu/roms/u-boot/doc/README.ubi deleted file mode 100644 index 9efab6cdc..000000000 --- a/qemu/roms/u-boot/doc/README.ubi +++ /dev/null @@ -1,225 +0,0 @@ -------------------- -UBI usage in U-Boot -------------------- - -UBI support in U-Boot is broken down into five separate commands. -The first is the ubi command, which has six subcommands: - -=> help ubi -ubi - ubi commands - -Usage: -ubi part [part] [offset] - - Show or set current partition (with optional VID header offset) -ubi info [l[ayout]] - Display volume and ubi layout information -ubi create[vol] volume [size] [type] - create volume name with size -ubi write[vol] address volume size - Write volume from address with size -ubi write.part address volume size [fullsize] - - Write part of a volume from address -ubi read[vol] address volume [size] - Read volume to address with size -ubi remove[vol] volume - Remove volume -[Legends] - volume: character name - size: specified in bytes - type: s[tatic] or d[ynamic] (default=dynamic) - - -The first command that is needed to be issues is "ubi part" to connect -one mtd partition to the UBI subsystem. This command will either create -a new UBI device on the requested MTD partition. Or it will attach a -previously created UBI device. The other UBI commands will only work -when such a UBI device is attached (via "ubi part"). Here an example: - -=> mtdparts - -device nor0 <1fc000000.nor_flash>, # parts = 6 - #: name size offset mask_flags - 0: kernel 0x00200000 0x00000000 0 - 1: dtb 0x00040000 0x00200000 0 - 2: root 0x00200000 0x00240000 0 - 3: user 0x01ac0000 0x00440000 0 - 4: env 0x00080000 0x01f00000 0 - 5: u-boot 0x00080000 0x01f80000 0 - -active partition: nor0,0 - (kernel) 0x00200000 @ 0x00000000 - -defaults: -mtdids : nor0=1fc000000.nor_flash -mtdparts: mtdparts=1fc000000.nor_flash:2m(kernel),256k(dtb),2m(root),27392k(user),512k(env),512k(u-boot) - -=> ubi part root -Creating 1 MTD partitions on "nor0": -0x000000240000-0x000000440000 : "mtd=2" -UBI: attaching mtd1 to ubi0 -UBI: physical eraseblock size: 262144 bytes (256 KiB) -UBI: logical eraseblock size: 262016 bytes -UBI: smallest flash I/O unit: 1 -UBI: VID header offset: 64 (aligned 64) -UBI: data offset: 128 -UBI: attached mtd1 to ubi0 -UBI: MTD device name: "mtd=2" -UBI: MTD device size: 2 MiB -UBI: number of good PEBs: 8 -UBI: number of bad PEBs: 0 -UBI: max. allowed volumes: 128 -UBI: wear-leveling threshold: 4096 -UBI: number of internal volumes: 1 -UBI: number of user volumes: 1 -UBI: available PEBs: 0 -UBI: total number of reserved PEBs: 8 -UBI: number of PEBs reserved for bad PEB handling: 0 -UBI: max/mean erase counter: 2/1 - - -Now that the UBI device is attached, this device can be modified -using the following commands: - -ubi info Display volume and ubi layout information -ubi createvol Create UBI volume on UBI device -ubi removevol Remove UBI volume from UBI device -ubi read Read data from UBI volume to memory -ubi write Write data from memory to UBI volume -ubi write.part Write data from memory to UBI volume, in parts - - -Here a few examples on the usage: - -=> ubi create testvol -Creating dynamic volume testvol of size 1048064 - -=> ubi info l -UBI: volume information dump: -UBI: vol_id 0 -UBI: reserved_pebs 4 -UBI: alignment 1 -UBI: data_pad 0 -UBI: vol_type 3 -UBI: name_len 7 -UBI: usable_leb_size 262016 -UBI: used_ebs 4 -UBI: used_bytes 1048064 -UBI: last_eb_bytes 262016 -UBI: corrupted 0 -UBI: upd_marker 0 -UBI: name testvol - -UBI: volume information dump: -UBI: vol_id 2147479551 -UBI: reserved_pebs 2 -UBI: alignment 1 -UBI: data_pad 0 -UBI: vol_type 3 -UBI: name_len 13 -UBI: usable_leb_size 262016 -UBI: used_ebs 2 -UBI: used_bytes 524032 -UBI: last_eb_bytes 2 -UBI: corrupted 0 -UBI: upd_marker 0 -UBI: name layout volume - -=> ubi info -UBI: MTD device name: "mtd=2" -UBI: MTD device size: 2 MiB -UBI: physical eraseblock size: 262144 bytes (256 KiB) -UBI: logical eraseblock size: 262016 bytes -UBI: number of good PEBs: 8 -UBI: number of bad PEBs: 0 -UBI: smallest flash I/O unit: 1 -UBI: VID header offset: 64 (aligned 64) -UBI: data offset: 128 -UBI: max. allowed volumes: 128 -UBI: wear-leveling threshold: 4096 -UBI: number of internal volumes: 1 -UBI: number of user volumes: 1 -UBI: available PEBs: 0 -UBI: total number of reserved PEBs: 8 -UBI: number of PEBs reserved for bad PEB handling: 0 -UBI: max/mean erase counter: 4/1 - -=> ubi write 800000 testvol 80000 -Volume "testvol" found at volume id 0 - -=> ubi read 900000 testvol 80000 -Volume testvol found at volume id 0 -read 524288 bytes from volume 0 to 900000(buf address) - -=> cmp.b 800000 900000 80000 -Total of 524288 bytes were the same - - -Next, the ubifsmount command allows you to access filesystems on the -UBI partition which has been attached with the ubi part command: - -=> help ubifsmount -ubifsmount - mount UBIFS volume - -Usage: -ubifsmount <volume-name> - - mount 'volume-name' volume - -For example: - -=> ubifsmount ubi0:recovery -UBIFS: mounted UBI device 0, volume 0, name "recovery" -UBIFS: mounted read-only -UBIFS: file system size: 46473216 bytes (45384 KiB, 44 MiB, 366 LEBs) -UBIFS: journal size: 6348800 bytes (6200 KiB, 6 MiB, 50 LEBs) -UBIFS: media format: w4/r0 (latest is w4/r0) -UBIFS: default compressor: LZO -UBIFS: reserved for root: 0 bytes (0 KiB) - -Note that unlike Linux, U-Boot can only have one active UBI partition -at a time, which can be referred to as ubi0, and must be supplied along -with the name of the filesystem you are mounting. - - -Once a UBI filesystem has been mounted, the ubifsls command allows you -to list the contents of a directory in the filesystem: - - -=> help ubifsls -ubifsls - list files in a directory - -Usage: -ubifsls [directory] - - list files in a 'directory' (default '/') - -For example: - -=> ubifsls - 17442 Thu Jan 01 02:57:38 1970 imx28-evk.dtb - 2998146 Thu Jan 01 02:57:43 1970 zImage - - -And the ubifsload command allows you to load a file from a UBI -filesystem: - - -=> help ubifsload -ubifsload - load file from an UBIFS filesystem - -Usage: -ubifsload <addr> <filename> [bytes] - - load file 'filename' to address 'addr' - -For example: - -=> ubifsload ${loadaddr} zImage -Loading file 'zImage' to addr 0x42000000 with size 2998146 (0x002dbf82)... -Done - - -Finally, you can unmount the UBI filesystem with the ubifsumount -command: - -=> help ubifsumount -ubifsumount - unmount UBIFS volume - -Usage: -ubifsumount - unmount current volume - -For example: - -=> ubifsumount -Unmounting UBIFS volume recovery! |