Changes between Version 2 and Version 3 of ventana/openwrt


Ignore:
Timestamp:
12/08/2017 07:55:09 PM (2 years ago)
Author:
Tim Harvey
Comment:

added 1GB NAND flash

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  • ventana/openwrt

    v2 v3  
    2424NOTE: Ventana JTAG only works on Linux and with the latest JTAG software (version 4 available [wiki:jtag_instructions here]).
    2525
    26 Every Ventana product is nearly the same and they can all use one universal prebuilt OpenWrt binary (ending in a .bin extension). The file to use is: ventana_owrt_normal.bin. This includes the SPL bootloader and uboot as well. (Exceptions include GW5400A with SPI flash and Ventana boards with larger amounts of flash such as a 2GB version, whereas 256mb is standard)
     26Every Ventana product is nearly the same and they can all use one universal prebuilt OpenWrt binary (ending in a .bin extension). The file to use is: ventana_owrt_normal.bin. This includes the SPL bootloader and uboot as well. (Exceptions include GW5400A with SPI flash and Ventana boards with larger amounts of flash such as a 1GB/2GB version, whereas 256mb is standard)
    2727
    2828The binary files can be found in the link above. If running a custom build, here is out to create a JTAG binary image 
     
    109109Notes:
    110110 * NAND flash devices can contain bad blocks (to allow for a lower price/size) and also have ECC for error correction. The flash devices have a certian amount of 'out of band' (OOB) storage available for every block that can be used for things such as ECC and/or filesystems. The i.MX6 NAND controller has hardware ECC support but uses the entire OOB area for the flash devices we use. The JFFS2 filesystem requires OOB for NAND and thus will not work on i.MX6 NAND solutions therefore we use the UBIFS filesystem.
    111  * Standard Ventana product currently has 256MB NAND FLASH, however some custom boards have 2GB NAND. For boards with 2GB FLASH use openwrt-imx6-ventana-rootfs_large.ubi
     111 * Standard Ventana product currently has 256MB NAND FLASH, however some custom boards have 1GB or 2GB NAND. For boards with 1GB/2GB FLASH use openwrt-imx6-ventana-rootfs_large.ubi
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