How to avoid download mode?

jackeyko — Fri, 28 Oct 2016 08:03:10 GMT

Dear NXP Team,

Precondition is as below:

I have wrriten OCOTP_CFG5 and OCOTP_CFG6 using fuse command in U-Boot.

1) fuse prog 0 5 0x18000030

2) fuse prog 0 6 0x00000010

Now, CPU Board(iWave i.MX6 Sodimm) is not working due to the changed OCOTP_CFG5 and OCOTP_CFG6.

iWave i.MX6 Sodimm is download mode.

iWave i.MX6 Sodimm Memory is using SPI NOR and eMMC.

SPI-NOR -> u-boot image

eMMC -> Kernel Image and rootfs image

How to avoid the download mode?

I would like to set normal mode.

Thanks,

Jackey

Re: How to avoid download mode?

igorpadykov — Fri, 28 Oct 2016 23:25:46 GMT

Hi Jackey

seems spi-nor boot boot from fuses option was programmed, as

described in Table 5-6. Serial-ROM Boot Fusemap i.MX6DQ Reference Manual
http://cache.freescale.com/files/32bit/doc/ref_manual/IMX6DQRM.pdf

There is no way to revert fuses state, still one can be able to use jtag for loading

and running images.

Best regards
igor
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topic How to avoid download mode? in i.MX Processors

How to avoid download mode?

Re: How to avoid download mode?