I am using customized board based on imx6d NAND flash.
I tried to test bootdelay time as the follow.
#define CONFIG_BOOTDELAY 0 //_LIC : 20150224 : 3 -> 0
The result, I cannot stop u-boot to download binary image by mtd-tool.
1) How can I download binary image by mtd-tool ?
2) I can use JTAG(codeviser), if it is impossible to use mtd-tool, How can I erase NAND flash memory or download binary image ?
Thanks and best regard.