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TQ i.MX6UL开发平台:sd卡自动烧写
日期:2018-01-05

  sd卡烧写分为自动烧写与手动烧写,

   自动烧写

  在做好的启动卡内复制相关镜像后,接到板子上,系统会根据镜像自动更新nand 里的

  镜像。烧写过程无须人工干预,适合量产时使用。

   手动烧写

  在sd 卡复制镜像后,启动板子。进入菜单选择要更新的镜像。自定义程度较自动烧写

  高。

  4.1. tf 卡脱机自动烧写

  自动烧写要先制作tf 启动卡,具体方法可以参考《制作sd 启动卡》章节。

  4.1.1. 准备镜像

  光盘的烧写镜像在:

  TQIMX6UL_COREB_CD/出厂烧录镜像合集/Linux 镜像/

  使用sd 卡脱机烧写时,拷贝到tf 卡中的镜像需要修改为默认名称,以下是使用的默认名称。


 镜像内容



 默认镜像名称



 Bootloader镜像


 u-boot.imx

 内核镜像

 zImage

 Dtb镜像

 tq-imx6ul.dtb


 文件系镜像


 rootfs.ubifs



  1. 将做好的tf 卡(启动卡)插到电脑上。

  2. 将要烧写的镜像复制tf 卡里的第一个分区(vfat 格式)里的根目录下。

  注: tq-imx6ul_net0_uart.dtb 和tq-imx6ul_net0_net1.dtb 根据实际要求二选一。

  tq-imx6ul_net0_uart.dtb 为双网卡+6 串口的配置,tq-imx6ul_net0_uart.dtb 为单网卡+8 串口的配置。

  $ ls /media/qingleqq/DF15-3F7C/

  $ cp u-boot_tqimx6ul_v1.0.imx zImage_tqimx6ul_v1.0 tq-imx6ul_net0_uart.dtb rootfs_tqimx6ul.ubifs

  /media/qingleqq/DF15-3F7C/.

  将镜像名修改为默认名称,步骤略。

  $ ls /media/qingleqq/DF15-3F7C/*

  tq-imx6ul.dtb rootfs.ubifs u-boot.imx zImage

  /media/qingleqq/DF15-3F7C/为笔者sd 卡挂载目录,只作参考,以实际为准。



  如果有不想更新的镜像,可以不复制。如:只想更新内核,则可只复制内核镜像。

  4.1.2. 烧写

  将tf 卡插到板子上,上电,系统会自动烧写。烧写完成后系统会自动启动。系统会在

  将第一个分区默认成fat 模式,并分别查找u-boot.imx、tq-imx6ul.dtb 、zImage、rootfs.ubifs 。

  找到文件就读取并烧写,如果文件不存在就略过。

  以下是自动烧写全镜像的打印。

  U-Boot 2016.03-gd294d2c-dirty (Feb 24 2017 - 09:08:25 +0800)

  CPU: Freescale i.MX6UL rev1.1 528 MHz (running at 396 MHz)

  CPU: Industrial temperature grade (-40C to 105C) at 38C

  Reset cause: POR

  Board: MX6UL 14x14 EVK

  I2C: ready

  DRAM: 512 MiB

  NAND: 1024 MiB

  MMC: FSL_SDHC: 0, FSL_SDHC: 1

  *** Warning - bad CRC, using default environment

  Display: TN92 (800x480)

  Video: 800x480x24

  Error: no valid bmp image at 85800000

  In: serial

  Out: serial

  Err: serial

  Net: FEC0

  Normal Boot

  Hit any key to stop autoboot: 0

  reading u-boot.imx

  613376 bytes read in 67 ms (8.7 MiB/s)

  nand erase.part u-boot;

  NAND erase.part: device 0 offset 0x0, size 0x400000

  Erasing at 0x3e0000 -- 100% complete.

  OK

  filesize = 95c00

  nand write.e 807ffc00 0x100000 96000

  NAND write: device 0 offset 0x100000, size 0x96000

  614400 bytes written: OK

  reading logo.bmp

  131638 bytes read in 28 ms (4.5 MiB/s)

  NAND erase.part: device 0 offset 0x600000, size 0x400000

  Erasing at 0x9e0000 -- 100% complete.

  OK

  NAND write: device 0 offset 0x600000, size 0x20236

  131638 bytes written: OK

  reading zImage

  5994032 bytes read in 522 ms (11 MiB/s)

  NAND erase.part: device 0 offset 0xa00000, size 0xa00000

  Erasing at 0x13e0000 -- 100% complete.

  OK

  NAND write: device 0 offset 0xa00000, size 0x5b7630

  5994032 bytes written: OK

  NAND erase.part: device 0 offset 0x1400000, size 0x200000

  Erasing at 0x15e0000 -- 100% complete.

  OK

  reading tq-imx6ul.dtb

  35384 bytes read in 20 ms (1.7 MiB/s)

  NAND write: device 0 offset 0x1400000, size 0x8a38

  35384 bytes written: OK

  reading rootfs.ubifs

  86851584 bytes read in 7372 ms (11.2 MiB/s)

  NAND erase.part: device 0 offset 0x1600000, size 0xea00000

  Skipping bad block at 0x06c40000

  Skipping bad block at 0x06c80000

  Erasing at 0xffe0000 -- 100% complete.

  OK

  ubi0: attaching mtd1

  ubi0: scanning is finished

  ubi0: empty MTD device detected

  ubi0: attached mtd1 (name "mtd=5", size 234 MiB)

  ubi0: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes

  ubi0: min./max. I/O unit sizes: 2048/2048, sub-page size 2048

  ubi0: VID header offset: 2048 (aligned 2048), data offset: 4096

  ubi0: good PEBs: 1870, bad PEBs: 2, corrupted PEBs: 0

  ubi0: user volume: 0, internal volumes: 1, max. volumes count: 128

  ubi0: max/mean erase counter: 1/0, WL threshold: 4096, image sequence number:

  0

  ubi0: available PEBs: 1828, total reserved PEBs: 42, PEBs reserved for bad PEB

  handling: 38

  No size specified -> Using max size (232112128)

  Creating dynamic volume rootfs of size 232112128

  86851584 bytes written to volume rootfs

  use nandboot

  NAND read: device 0 offset 0xa00000, size 0xa00000

  10485760 bytes read: OK

  NAND read: device 0 offset 0x1400000, size 0x200000

  2097152 bytes read: OK

  Kernel image @ 0x80800000 [ 0x000000 - 0x5b7630 ]

  ## Flattened Device Tree blob at 83000000

  Booting using the fdt blob at 0x83000000

  Using Device Tree in place at 83000000, end 8300ba37

  Modify /soc/aips-bus@02000000/bee@02044000:status disabled

  ft_system_setup for mx6

  Starting kernel ...

  Booting Linux on physical CPU 0x0

  Linux version 4.1.15-ga2a1e0e-dirty (qingleqq@z-work) (gcc version 5.3.1

  20160412 (Linaro GCC 5.3-2016.05) ) #24 SMP PREEMPT Thu Feb 23 11:09:49 CST 2017

  CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c53c7d

  CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache

  Machine model: Freescale i.MX6 UltraLite 14x14 EVK Board

  Reserved memory: created CMA memory pool at 0x8c000000, size 320 MiB

  Reserved memory: initialized node linux,cma, compatible id shared-dma-pool

  Memory policy: Data cache writealloc

  PERCPU: Embedded 12 pages/cpu @8bb32000 s16960 r8192 d24000 u49152

  Built 1 zonelists in Zone order, mobility grouping on. Total pages: 130048

  Kernel command line: console=ttySAC0,115200 panel=TN92 root=ubi0:rootfs

  rootfstype=ubifs ubi.mtd=5

  mtdparts=gpmi-nand:4m(u-boot),2m(u-boot-env),4m(logo),10m(kernel),2m(dtb),-(

  rootfs) rootwait rw

  PID hash table entries: 2048 (order: 1, 8192 bytes)

  Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)

  Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)

  Memory: 178956K/524288K available (8350K kernel code, 387K rwdata, 2780K rodata,

  324K init, 442K bss, 17652K reserved, 327680K cma-reserved, 0K highmem)

  Virtual kernel memory layout:



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