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<section end="History" />
Even though the example shown here refers to an i.MX6 DualLite board, the approach is substantially the same across all the i.MX6 family.
The test bed used in this example consists of an i.MX6 DualLite board equipped with a 512MB 8-bit asynchronous 1-bit ECC SLC NAND memory which is connected to the EIM bus of the SoC. The boot firmware image are the U-Boot binary files (<code>desk-mx6-l-34.0.0_mx6qdldesk_nand_SPL</code> and <code>desk-mx6-l-34.0.0_mx6qdldesk_nand_u-boot.img</code>). Their sizes are about 60kB (SPL) and 612 kB (u-boot).
From the point of view of MTD partitions, the boot partition for SPL is <code>mtd0</code> is 2MB while the second stage partition <code>mtd1</code> is 6MB.
<pre class="board-terminal">
root@desk-mx6:~# kobs-ng -x -v -w desk-mx6-l-34.0.0_mx6qdldesk_nand_SPL
MTD CONFIG:
chip_0_device_path = "/dev/mtd0"
mtd: opened '/dev/mtd0' - '(null)'
mtd: max_boot_stream_size_in_bytes = 524288
mtd: boot_stream_size_in_bytes = 6144057344mtd: boot_stream_size_in_pages = 3028mtd: #1 0x00100000 - 0x00180000 (0x0010f0000x0010e000)mtd: #2 0x00180000 - 0x00200000 (0x0018f0000x0018e000)
FCB
m_u32Checksum = 0x00000000
m_u32Firmware1_startingPage = 512
m_u32Firmware2_startingPage = 768
m_u32PagesInFirmware1 = 3028 m_u32PagesInFirmware2 = 3028
m_u32DBBTSearchAreaStartAddress = 256
m_u32BadBlockMarkerByte = 2028
m_u32Version = 0x01000000
m_u32DBBTNumOfPages = 0
Firmware: image #0 @ 0x100000 size 0xf000 0xe000 - available 0x80000Firmware: image #1 @ 0x180000 size 0xf000 0xe000 - available 0x80000-------------- Start to write the [ FCB ] -----
-------------- Start to write the [ FCB ] -----
mtd: erasing @0:0x0-0x20000
---------- Start to write the [ .tmp_kobs_ng ]----
mtd: Writting .tmp_kobs_ng: #0 @0: 0x00100000 - 0x0010f0000x0010e000
mtd: erasing @0:0x100000-0x120000
mtd: We write one page for save guard. *
mtd: Writting .tmp_kobs_ng: #1 @0: 0x00180000 - 0x0018f0000x0018e000
mtd: erasing @0:0x180000-0x1a0000
mtd: We write one page for save guard. *
</pre>
root@desk-mx6:~# flash_erase /dev/mtd1 0 0
Erasing 128 Kibyte @ 5e0000 -- 100 % complete
root@desk-mx6:~# nandwrite -p /dev/mtd1 desk-mx6-l-34.0.0_mx6qdldesk_nand_u-boot.img
Writing data to block 0 at offset 0x0
Writing data to block 1 at offset 0x20000